20 Best Window Companies in South Monrovia Island, CA (2023 Reviews)
Are you thinking about upgrading your windows? Our list of the top window installation companies can help you pick the right one for you.
We analyzed all the top-rated window companies in South Monrovia Island 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
Although environmentally friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house's efficiency can also have a considerable impact on home energy conservation. Poor windows can make your home uncomfortable in the summer or winter.
That's also bad for the environment because the additional energy required by old windows increases your carbon footprint.
As windows have such a big impact on your home, selecting the best company for you is a big decision to make. That's why the EcoWatch team has made this list of the top window installation companies, so you can make an informed decision more easily.
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 South Monrovia Island
The EcoWatch team assessed dozens of companies that serve the South Monrovia Island area to find the best window installation companies that fit our standards. We assessed the companies based on energy-efficient offerings, price, customer service, coverage area, 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 offers windows expertise in South Monrovia Island. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation industry for about 27 years.
Window World may be the company for you if you're looking for one 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 WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 South Monrovia Island?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. The best way to get more accurate pricing information is to get a free quote from the company.

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 provides the best local installation in South Monrovia Island. This company has been in business since 1962 and currently provides services to Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. The company has a lot of positive reviews from customers online.
If you’re looking for a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience, Milgard may be the company for you.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 South Monrovia Island?Pricing information is not available on Milgard’s website, as the cost of window replacement differs based on how many and what type(s) of windows you need. However, it offers different kinds of windows at varying price points. For more detailed information on pricing, you can inquire about a 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 provides the best availability in South Monrovia Island. This company has been in business since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. The company has a lot of positive reviews from customers online.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen appeals 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 South Monrovia Island?Pricing information is not available on Andersen’s website, as the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on pricing, you can inquire about a 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. Universal has been in the window business for around 20 years. Its reputation is backed by a considerable amount of positive reviews on customer review websites.
If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the right company for you.
Energy Efficiency of Universal Windows Direct WindowsThe 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. Not all of Universal’s offerings are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in South Monrovia Island?Universal does not detail prices 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. You can inquire about a free quote on its website for more information about the cost.
We've recommended companies with shining reputations, but keep in mind these are national companies, so the quality of service may vary depending on your local crew. We have tried to stay unbiased and transparent by including pros and cons for each company we reviewed.
More Window Companies in South Monrovia Island
Renewal by Andersen of Los Angeles
Torrance, CA-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Glass Showers
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Commercial Windows
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Window Replacement
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Residential Windows
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Double-Hung
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Sliding Glass
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Stained Glass
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Custom Window Designs
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Fast Delivery
Window World of Los Angeles
Covina, 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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Residential Windows
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Custom Window Designs
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Window Replacement
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Double-Hung
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Bay Windows
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Sliding Glass
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Fast Delivery
American Window Company
Covina, CA-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Energy-Efficient Options
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Window Replacement
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Double-Hung
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Aluminum Window Frames
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Custom Window Designs
Dreamstyle Remodeling
Irwindale, CA-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Fast Delivery
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Full-Service Installations
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Custom Window Designs
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Window Replacement
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Residential Windows
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Glass Showers
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Double-Hung
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Sliding Glass
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Bay Windows
Home Services at The Home Depot
Baldwin Park, CA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Commercial Windows
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Stained Glass
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Custom Window Designs
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Residential Windows
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Window Replacement
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Fast Delivery
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Glass Showers
Slater Glass & Mirror
Arcadia, CA-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Commercial Windows
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Glass Showers
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Residential Windows
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Window Replacement
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Double-Hung
Pella Window and Door Showroom of South Pasadena, CA
S Pasadena, CA-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Window Replacement
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Bay Windows
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Stained Glass
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Sliding Glass
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Fast Delivery
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Commercial Windows
JK Glass & Mirror Inc
Baldwin Park, CA-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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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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Residential Windows
N.E.U GLASS WINDOW REPAIR
La Puente, 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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Residential Windows
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Custom Window Designs
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Double-Hung
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Window Replacement
SoCal Window Pros
San Dimas, CA-
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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Window Replacement
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Residential Windows
Vista Window Manufacturing, Inc.
Monrovia, CA-
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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Energy-Efficient Options
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Residential Windows
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Commercial Windows
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Sliding Glass
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Window Replacement
Pro Board Up of Pasadena
Pasadena, CA-
Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
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Commercial Windows
Elite Vinyl Windows Inc.
Whittier, CA-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Window Replacement
Advance Windows & Doors
Walnut, 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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Tempered Glass
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Window Replacement
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Bay Windows
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Double-Hung
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Residential Windows
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Custom Window Designs
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Fast Delivery
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Commercial Windows
Family Home Improvements
Whittier, CA-
Price Transparency
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Educational Website
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Good Customer Service
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Timely Service
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Free assessment
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
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Full-Service Installations
All Cities Glass & Screen
Glendora, CA-
Educational Website
Services Offered
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Window Replacement
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Commercial Windows
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Glass Showers
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Residential Windows
Sears Heating and Air Conditioning
Santa Fe Springs, CA-
Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
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Timely Service
Services Offered
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Fast Delivery
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Glass Showers
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Window Replacement
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Residential Windows
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Custom Window Designs
NagcoGlass
Pomona, CA-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Window Replacement
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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
American Home Center
Downey, 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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Residential Windows
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Fast Delivery
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Custom Window Designs
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Window Replacement
Tesla Windows
Buena Park, CA-
Good Customer Service
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Price Transparency
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Free assessment
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Timely Service
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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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Custom Window Designs
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Aluminum Window Frames
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Window Replacement
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Residential Windows
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Double-Hung
Calculate how much you can expect to pay for window installation and replacement in South Monrovia Island, 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 South Monrovia Island Saves You Money
By switching to energy-efficient windows, you can enjoy several benefits, such as:
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Save on energy bills: The Department of Energy estimates that heat gained or lost via windows makes up around 25-30% of energy use in your home. Upgrading to energy-efficient windows can help lower that amount, which helps you save more on your bills.
- Better temperature control in your home: Living in a chilly place like South Monrovia Island can often mean relying on your heater to keep your house cool. Energy-efficient windows can reduce the amount of heat lost through your windows when heating your home.
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.
Estimated Cost of Window Replacement in South Monrovia Island
Let's take a look at the cost of installing new windows and the types of services you may need for your home.
How Much Do New Windows Cost?
Generally, homeowners in South Monrovia Island can expect that most replacement window installations will range from $250 to $1,200, with the average cost sitting at about $600. But prices 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 carry a higher price tag.
With windows, efficiency is one of the most important factors for most homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — especially if you live in a hot climate — they can provide decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save South Monrovia Island homeowners $509+ per year after replacing single-pane windows.
The cost of your window installation will also vary based on the type of window material you choose for the frames. Wood windows are generally the most expensive, although it depends if they are completely 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?
Generally, there are two kinds of window replacement services companies offer: full-frame and pocket installations.
Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are most common when you want a new style for your windows or when it has significant damage. Full-frame installations are more time-consuming and will increase overall costs. A pocket installation entails replacing a window without replacing the frame. This means instead of tearing out the whole window and reinstalling it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
If you're not sure which kind of window installation service you need, your installer can help you out. Generally, the decision is influenced by factors such as the age and condition of the home, the type of building material, budget and time restrictions.
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 South Monrovia Island
In our hunt to make your home improvements easier and more eco-friendly in South Monrovia Island, the EcoWatch team chose the above companies as the best window installation companies in the city. Along with energy efficiency, we analyzed each installer and ranked them using the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find a quality window installation company near you.
Work Quality
When choosing new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the type of window you opt for. 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 most customers don't have good things to say about their service from a certain company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installers won't always provide the highest quality service. On the other hand, we want to make sure we're highlighting companies that offer a wide range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed, windows are a hefty investment, so you'll want to be certain that investment is well protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a good track record in the industry. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
South Monrovia Island, CA Window Replacement FAQs
How much does window installation cost?
The national average cost of installing a single window is about $600 but can range between $200 and $1,200, depending on several factors. The price is typically influenced by the type and material of the window, the size of the window and the location of your property. Also, keep in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
Which type of window should I get?
Generally, double-pane windows are more efficient than single-pane windows and windows that don't open are more efficient than windows that do. To be sure you'll get the most energy-efficient windows, look for models that have the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.
What services do window replacement companies do?
Window installers will do the entire process — from replacing your old windows with brand new ones to cleaning up after the installation. In addition, a lot of companies offer window manufacturing, customization and repairs.
When is it time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may need to be replaced.