29 Best Window Replacement Companies in Walnut, CA (2023 Reviews)
Window Companies Near Me
Thinking about replacing your windows? We've got you covered in this list of the top window installation companies.
We analyzed all the top window installers in Walnut and selected the top 29 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
A review of the best window replacement companies in Walnut may not seem like the most riveting article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. During the hot summer months, the last thing you want is your cool air to leak out of your outdated, drafty windows.
Replacement windows improve your home's insulation, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.
Efficient windows are of particular importance in Walnut, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $509 each year.
Best Affordability
Window World
- Low prices relative to competitors
- Lifetime warranty
- EnergyStar Partner
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
Best Window Replacement Companies in Walnut
The EcoWatch Reviews team assessed several window installation companies across Walnut to narrow our list down to the best ones. The companies mentioned in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise and beyond.

Window World
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Low prices relative to competitors
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Lifetime warranty
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EnergyStar Partner
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Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. This window installation company has been operating since 1995 and currently provides services to 200 locations nationwide.
You may want to consider picking Window World if you're looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's windows are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Window World cost in Walnut?Prices are not available on Window World's website, as the cost of window replacement differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to get more accurate information.

Milgard Windows & Doors
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EnergyStar Partner
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Wide network of installers
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Lifetime warranty available
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Limited additional services
Milgard Windows & Doors provides the best local installation in Walnut. This provider has 60 years of experience in the window installation industry, and it has established itself as one of the most respected companies in Walnut. Many positive reviews on customer review websites back the provider's reputation.
It has established itself as a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. The company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised.
How much does Milgard Windows & Doors cost in Walnut?Prices are not available on Milgard's website because the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, it offers different kinds of windows at varying price points. If you'd like to know for sure, you can request a quote on the company's website.

Renewal by Andersen
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Award-winning company
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Great industry reputation
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Manufactures products in-house
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More expensive than competition
Renewal by Andersen offers the best availability in Walnut. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement industry. Hundreds of positive reviews on customer review websites back the provider's reputation.
Andersen may be the company for you if you're interested in one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen caters to eco-conscious consumers by providing energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Walnut?Andersen doesn't have any pricing information available on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can request a free quote on its website for more information about the cost.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct offers the best warranty in Walnut. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has over 20 years of experience in the windows industry, and it currently provides services to 27 states nationwide. Its reputation is backed by all the positive reviews from customers online.
You may want to consider picking Universal if you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Walnut?Universal doesn't have any pricing information listed on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. For more detailed information on the cost, you can get a quote from the company.
We've recommended installers with shining reputations, but keep in mind some national companies have independently owned locations in Walnut, so the quality of service may depend on your local crew. We have tried to be unbiased and transparent by mentioning pros and cons for each company we reviewed.
More Window Replacement Companies in Walnut
The Glass Guru
Torrance, CA-
Excellent Customer Service
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Free Quotes
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Locally Recognized for Quality
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No-Hassle Pricing
Services Offered
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Glass Showers
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Tempered Glass
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Broadway Glass & Mirror, Inc.
Long Beach, CA-
Price Transparency
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Consistent Workmanship
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Arrives on Time
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Excellent Customer Service
Services Offered
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Double-Hung
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Doors
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Full-Service Installations
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
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Aluminum Window Frames
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Glass Showers
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Architectural Glass
Smart Window Company
Torrance, CA-
No-Hassle Pricing
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Good Customer Service
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Helps Educate Customers
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Free Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
A New View Windows & Doors Inc.
Anaheim, CA-
Educational Website
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Good Customer Service
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Consistent Workmanship
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Locally Recognized for Quality
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Eisenbart & Sons Glass, Windows & Doors
Mission Viejo, CA-
Arrives on Time
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No-Hassle Pricing
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Free Quotes
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Good Customer Service
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
Select Home Improvements
Anaheim, CA-
Good Customer Service
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Helps Educate Customers
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No-Hassle Pricing
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Consistent Workmanship
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Metropolitan High Performance Windows
Anaheim, CA-
No-Hassle Pricing
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No-fee Quotes
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Excellent Customer Service
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Timely Service
Services Offered
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Fast Delivery
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Golden Glass
Fullerton, CA-
No-fee Quotes
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No-Hassle Pricing
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Arrives on Time
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Good Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Heavy Glass
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Tempered Glass
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Doors
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Custom Windows
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Business Windows
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Double-Hung
Veracity Window and Door
Riverside, CA-
Consistent Workmanship
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Free Quotes
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Reliable Appointment Windows
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Excellent Customer Service
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Business Windows
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Double-Hung
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Sliding Glass
Devina Home Remodeling Orange County
Laguna Hills, CA-
No-Hassle Pricing
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Excellent Customer Service
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Award-Winning
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Free Quotes
Services Offered
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Glass Showers
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Fast Delivery
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Custom Windows
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Full-Service Installations
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Business Windows
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Double-Hung
Tashman Home Center
West Hollywood, CA-
Good Customer Service
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Locally Recognized for Quality
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No-fee Quotes
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Price Transparency
Services Offered
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Residential Windows
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Fast Delivery
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Anaheim Glass
Anaheim, CA-
Dependable Service
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Timely Service
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Business Windows
California Window Masters
Irvine, CA-
Price Transparency
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Excellent Customer Service
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Reliable Service
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Educational Website
Services Offered
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Fast Delivery
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Custom Windows
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Residential Windows
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Sliding Glass
Bodie's Glass Service
Westminster, CA-
Consistent Workmanship
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Arrives on Time
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Price Transparency
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Educational Website
Services Offered
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Glass Showers
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Residential Windows
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Custom Windows
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Commercial Windows
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Sliding Glass
Window King
Huntington Beach, CA-
Good Customer Service
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Reliable Appointment Windows
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Tesla Windows
Buena Park, CA-
Excellent Customer Service
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Reliable Service
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Timely Service
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Free Quotes
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Anytime Windows and Doors
North Hollywood, CA-
Price Transparency
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Arrives on Time
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
Design Windows and Doors Inc.
Ontario, CA-
Dependable Service
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Excellent Customer Service
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Arrives on Time
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Helps Educate Customers
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Safe Glass Window Replacement INC
San Bernardino, CA-
Good Customer Service
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Free Quotes
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Reliable Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Business Windows
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Double-Hung
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Sliding Glass
GOLDEN BEAR GLASS & WINDOWS LLC
Los Angeles, CA-
No-Hassle Pricing
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Good Customer Service
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Helps Educate Customers
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Dependable Service
Services Offered
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Residential Windows
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Architectural Glass
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Heavy Glass
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Energy-Efficient Options
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Tempered Glass
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Custom Windows
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Aluminum Window Frames
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Business Windows
American Window Company
Covina, CA-
Free Quotes
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Dependable Service
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Price Transparency
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Award-Winning
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Energy-Efficient Options
Cal Replacement Window Company of Orange County
Anaheim, CA-
Locally Recognized for Quality
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Excellent Customer Service
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Free Quotes
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Helps Educate Customers
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Sliding Glass
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Aluminum Window Frames
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Architectural Glass
Abel Glass & Screen, Inc.
South Gate, CA-
Reliable Service
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Helps Educate Customers
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Window Designs
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Business Windows
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Sliding Glass
Hardy Windows - Orange County
Placentia, CA-
Award-Winning
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Helps Educate Customers
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Mancino Door & Window, Inc.
Laguna Niguel, CA-
Helps Educate Customers
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No-Hassle Pricing
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No-fee Quotes
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Good Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Sliding Glass
Can-Do Windows & Doors
Costa Mesa, CA-
Free Quotes
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Educational Website
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Mancino Door & Window, Inc.
Glendora, CA-
No-fee Quotes
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Educational Website
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Architectural Glass
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Sliding Glass
Ameristar Windows
Riverside, CA-
Helps Educate Customers
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No-fee Quotes
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Window Designs
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Full-Service Installations
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Double-Hung
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Sliding Glass
Window World of Los Angeles
Covina, CA-
No-Hassle Pricing
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Educational Website
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Dependable Service
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Charitable Giving
Services Offered
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Custom Windows
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Architectural Glass
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Sliding Glass
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Double-Hung
How Installing Energy-Efficient Windows in Walnut Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here are more details about how switching out your windows could help you:
- Save money on power bills: Because energy-efficient windows reduce how much energy you need to heat or cool your home, they can help you save about $509 annually on your energy bills in Walnut.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, leaky or potentially even damaged in some way. Updating your windows could help increase the value of your property if you decide to sell.
- Reduce your carbon footprint: You can reduce your carbon footprint by about 12% after you install Energy Star certified windows. In Walnut, that's about 117 pounds per year on average.
Estimated Cost of Window Replacement in Walnut
Windows come in various shapes and sizes, so costs and services will vary tremendously. Here are the average costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
Typically, Walnut homeowners can anticipate their window replacements to range from $250 to $1,200. The most common installations sit at about $600. This is due to the fact that the cost of window installations are based on a variety of factors specific to your home, such as the size, material and number of windows you need to replace, as well as where your property is located.
Whether or not you opt for energy-efficient windows is another factor that will influence the cost. These will usually cost more than other windows, but on the other hand, you can save about $509 a year on your energy bills in Walnut.
We recommend getting free quotes from several window installers to find the one that works best for your budget.
What Services do Window Installers Offer?
There are generally two types of window replacement services: full-frame and pocket installations.
Full-frame installations involve replacing the full window — the sill, frame, trim and all. These are most common when you want a different style for your windows or when it has significant deterioration. Full-frame installations are more time-consuming and will increase overall costs. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations take less time and therefore cost less. But, if the frame has any rot or deterioration, you will most likely need a full-frame installation instead.
Your window installer can help you figure out which type of installation you should get.
Best Affordability
Window World
- Low prices relative to competitors
- Lifetime warranty
- EnergyStar Partner
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
How We Choose the Best Window Installers in Walnut
In our search to make your home improvements easier and more eco-friendly in Walnut, the EcoWatch team evaluated many companies before landing on these. We've assessed the top window installers in Walnut mainly based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for Walnut, we gave more points to companies that cover the city. There are certainly reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Walnut.
Work Quality
When it comes to new windows, the quality and variety of services often plays just as important of a role in insulation and performance as the brand you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don't have positive things to say about their experience with a certain installer, it won't be featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers' prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. That's why window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a good track record in the industry. Window installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Walnut, CA Window Replacement FAQs
What is the typical cost to replace windows?
The typical cost to install a single window ranges from $450 to $650. There are a variety of factors that affect the cost, such as your property's location, the materials used in designing the windows, local labor costs, the number of windows, how energy-efficient the windows are and styles and sizes of windows.
What are the types of windows?
There are various kinds of windows you can get for your house, including picture windows, casement windows, awning windows, transom windows, double-hung and single-hung windows, bay windows and slider windows.
When do I have to use a window installation company?
Unless you have home repair skills and have all the tools you need to replace your own windows, we recommend hiring a professional installer. The window installation process is quite involved and can take anywhere from four to six hours for one window. Although it's tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and safer alternative.
How long does it usually take to install windows?
Since a window takes about 30 minutes to install, about 16 windows can be installed during an 8-hour work day.