20 Best Window Companies in Agoura Hills, CA (2023 Reviews)
Looking to improve your home's look? The best window replacement companies can help.
We analyzed all the top-rated window companies in Agoura Hills and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
A review of the best window installation companies in Agoura Hills may not seem like the most compelling article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might think. Drafty, leaky windows could lead to spending more on electricity bills during the winter or summer months.
Luckily, saving you energy with efficient windows also helps our goals of conserving energy and the resources it takes to make it.
We've compiled this list of the top installation companies to help you in your research, so you can not only enjoy brand new windows, but also save money on your power bills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Agoura Hills
The EcoWatch Reviews team assessed dozens of providers that serve the Agoura Hills area to find the top window installation companies that fit our standards. We assessed the providers on energy-efficient offerings, coverage area, price, customer service, local experience and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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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. Window World has around 27 years of industry experience, and it currently serves 200 locations nationwide.
It 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 WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Agoura Hills?Window World doesn’t have any prices available on its website, but it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about the cost.

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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Entails hiring third-party contractors
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Limited additional services
Milgard Windows & Doors is a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has around 60 years of experience in the window replacement business. The provider has a lot of positive reviews from customers on online review websites.
Milgard may be the company for you if you want one 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 WindowsThe 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. Not all of Milgard’s offerings are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Milgard Windows & Doors cost in Agoura Hills?Milgard does not detail prices on its website, but it offers different kinds of windows at varying price points. The best way to know for sure is to get a free quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement business. The provider has a lot of positive reviews from customers on online review websites.
Andersen may be the company for you if you want 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 WindowsA 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. Not all of Andersen’s offerings are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Agoura Hills?Andersen does not detail prices 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. The best way to know for sure is to get a free quote from the company.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This provider has 20 years of experience in the window installation business, and it has established itself as one of the best companies in the business. The provider has a lot of positive reviews from customers online.
It 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 make sure you ask for high-quality 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 Agoura Hills?Pricing information is not available on Universal’s website because the cost of window installment varies greatly based on how many and what type(s) of windows you need. However, 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. If you’d like more accurate pricing information, you can get a quote on the company’s website.
We have tried to stay unbiased and transparent by listing pros and cons for each installer. Additionally, any partnerships do not affect our reviews.
More Window Companies in Agoura Hills
Renewal by Andersen of Los Angeles
Torrance, CA-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Window Replacement
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Glass Showers
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Residential Windows
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Double-Hung
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Stained Glass
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Commercial Windows
Window World of Los Angeles
Covina, CA-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Fast Delivery
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Residential Windows
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Double-Hung
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Window Replacement
American Vision Windows
Simi Valley, CA-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Double-Hung
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Energy-Efficient Options
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Sliding Glass
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Glass Showers
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Aluminum Window Frames
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Window Replacement
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Stained Glass
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Residential Windows
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Bay Windows
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Fast Delivery
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Custom Window Designs
Golden Hands Builders
Woodland Hills, CA-
Good Customer Service
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Free assessment
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Price Transparency
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Timely Service
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Educational Website
Services Offered
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Custom Window Designs
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Glass Showers
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Fast Delivery
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Residential Windows
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Double-Hung
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Window Replacement
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Commercial Windows
Nu-Star Glass and Mirror
Simi Valley, CA-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Window Repair
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Glass Showers
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Energy-Efficient Options
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Commercial Windows
The Window Factory
Simi Valley, CA-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Energy-Efficient Options
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Sliding Glass
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Double-Hung
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Window Replacement
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Fast Delivery
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Residential Windows
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Bay Windows
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Commercial Windows
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Custom Window Designs
Emergency Glass repair and Board Up
Thousand Oaks, CA-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Window Repair
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Sliding Glass
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Fast Delivery
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Residential Windows
Arrow Glass of Thousand Oaks
Thousand Oaks, CA-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Glass Showers
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Window Replacement
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Double-Hung
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Commercial Windows
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Sliding Glass
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Window Repair
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Residential Windows
Community Glass & Mirror
Simi Valley, CA-
Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Glass Showers
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Commercial Windows
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Residential Windows
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Window Replacement
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Sliding Glass
Window Design Group
Thousand Oaks, CA-
Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Sliding Glass
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Window Replacement
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Double-Hung
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Fast Delivery
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Residential Windows
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Aluminum Window Frames
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Bay Windows
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Energy-Efficient Options
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Custom Window Designs
My Window Solutions
Newbury Park, CA-
Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Double-Hung
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Window Replacement
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Residential Windows
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Commercial Windows
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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
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Glass Showers
Frontier Windows & Doors
Canoga Park, CA-
Free assessment
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Window Replacement
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Energy-Efficient Options
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Sliding Glass
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Double-Hung
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Residential Windows
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Fast Delivery
Clear Choice USA-Simi Valley
Simi Valley, CA-
Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Window Replacement
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Residential Windows
California Vision Windows
Canoga Park, CA-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Window Replacement
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Aluminum Window Frames
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Custom Window Designs
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Residential Windows
Progressive Insulation & Windows
Chatsworth, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Energy-Efficient Options
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Fast Delivery
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Window Replacement
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Double-Hung
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Custom Window Designs
Aggressive Sash & Door
Canoga Park, CA-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
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Timely Service
Services Offered
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
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Double-Hung
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Residential Windows
Frontline Windows & More Inc.
Chatsworth, CA-
Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Bay Windows
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Residential Windows
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Custom Window Designs
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Window Replacement
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Double-Hung
Sivan Windows and Doors - Los Angeles Window and Door Replacement Company
Northridge, CA-
Timely Service
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Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Window Replacement
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Glass Showers
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Commercial Windows
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Double-Hung
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Sliding Glass
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Residential Windows
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Aluminum Window Frames
Fine Windows and Doors, Inc.
Chatsworth, CA-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Double-Hung
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Window Replacement
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Residential Windows
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Fast Delivery
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Energy-Efficient Options
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Aluminum Window Frames
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Sliding Glass
California Energy Contractors
Van Nuys, CA-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Sliding Glass
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Commercial Windows
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Window Replacement
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Glass Showers
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Custom Window Designs
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Double-Hung
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Residential Windows
Calculate how much you can expect to pay for window installation and replacement in Agoura Hills, CA using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Agoura Hills Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are some reasons you may want to consider making the switch:
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Save money on power bills: The Department of Energy estimates that heat gained or lost through windows accounts for about 25-30% of household energy use. Switching to energy-efficient windows can help lower that amount, which helps you save some money on your bills.
- Better temperature control in your home: Living in a chilly city like Agoura Hills can often mean relying on your heater to keep your house cool. Energy-efficient windows can reduce how much heat is lost through your windows when heating your home.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Agoura Hills
Windows come in all shapes and sizes, so costs and services will vary greatly. Here are the typical costs and services that you can find from the average window installation company.
How Much Do New Windows Cost?
According to our market research, the typical cost to replace a single window is about $600. However, window installation costs can range from $200 to $1,200 per window. But costs vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations, which will add extra costs to your project.
With windows, efficiency is one of the most important factors for many homeowners. Efficient windows may cost more initially, but by increasing the efficiency of your home — especially if you live in a hot climate — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Agoura Hills homeowners $509+ per year after replacing single-pane windows.
How much your window installation costs will also vary based on the type of material you choose for the frames. Wood windows are typically the most expensive, but it depends if they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
The first step when planning a window replacement is to decide whether you want a full-frame or pocket installation.
A full-frame installation replaces the complete window, including the sill, frame, trim and the window panes. As this type of installation is more involved, it will cost more than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are simpler and won't carry as large a bill, but you can't do this type of installment if you have any pre-existing rot or water damage.
Your window replacement company should be able to help you decide what's best for your needs. In Agoura Hills, the decision will mostly depend on the age of your home and if there's any moisture damage. Wood can decay if it's not maintained properly over the years, so it's good to have a professional check your frames and window sills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Agoura Hills
EcoWatch reviews are different from other reviews, as we assess these companies through a sustainability lens. We've evaluated the top window installers in Agoura Hills primarily based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
Since this is a guide for Agoura Hills, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in Agoura Hills.
Work Quality
When choosing new windows, the quality and range of services can often play just as important of a role in insulation and performance as the brand you get. 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
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have positive feedback about their service from a certain company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window companies may not provide the highest quality service. Still, we want to ensure we're highlighting companies that provide a spectrum of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Agoura Hills, CA Window Replacement FAQs
How much does window installation cost?
The national average cost to replace one window is about $600 but can range between $200 and $1,200, depending on a few different factors. The price is typically influenced by the location of your property, the type and material of the window and the size of the window. Also, remember that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What are the most common types of replacement windows?
There are various kinds of windows you can get for your house, such as slider windows, bay windows, casement windows, picture windows, double-hung and single-hung windows, transom windows and awning windows.
What services do window replacement companies provide?
Window installers cover the entire process — from replacing old windows with new ones to cleaning up afterward. Additionally, many companies offer window manufacturing, customization and repairs.
What time of year should I replace my windows?
Replacement windows can be installed during any season, but autumn might be best. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into your house, so the temperature outside isn't necessarily a big factor. What's most important is that the weather should be dry.