20 Best Window Companies in San Gabriel, CA (2025 Reviews)
Thinking about replacing your home's windows? We’ve got all the information you need in this list of the top window installation companies.
We analyzed all the top-rated window companies in San Gabriel and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
Whether you're doing home renovations or have damaged windows, windows play a key role in conserving your home's electricity. When it’s the middle of summer, your old and leaky windows could be making your home harder to cool and more uncomfortable for you.
Thankfully, saving you energy with more efficient windows also aligns with our goals of reducing energy usage for the environment.
Unlike other sites, EcoWatch ranks window companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in San Gabriel
The EcoWatch team assessed dozens of window companies in San Gabriel to find the top ones for our readers. The installers in this article scored best in our categories, which include energy-efficient offerings, price, customer service, availability and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
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 about 27 years of experience in the window installation sector.
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, this may be the perfect company for you.
Energy Efficiency of Window World WindowsThere are a wide range of window types available from Window World, some of which are Energy Star products. 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 San Gabriel?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. If you’d like to know for sure, you can receive a quote on the company’s website.

Milgard Windows & Doors
EnergyStar Partner
Wide network of installers
Lifetime warranty available
Entails hiring third-party contractors
Limited additional services
Milgard Windows & Doors is a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has about 60 years of experience in the window installation sector.
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, this may be the perfect company for you.
Energy Efficiency of Milgard Windows & Doors WindowsThere are a wide range of window types available from Milgard Windows & Doors, some of which are Energy Star products. 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 San Gabriel?Milgard does not mention prices on its website, but it offers different kinds of windows at varying price points. If you’d like to know for sure, you can receive a quote on the company’s website.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window installation sector.
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, this may be the perfect company for you.
Energy Efficiency of Renewal by Andersen WindowsThere are a wide range of window types available from Renewal by Andersen, some of which are Energy Star products. 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 San Gabriel?Andersen does not mention 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. If you’d like to know for sure, you can receive a quote on the company’s website.
We aim to remain unbiased and transparent by mentioning pros and cons for each provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in San Gabriel
Renewal by Andersen of Los Angeles
Torrance, CAFree assessment
Educational Website
31,000+ projects completed
Good Customer Service
Price Transparency
In-home or virtual consultations
Financing options available
Services Offered
Glass Doors
Window Replacement/Installation
Skylights
Double-Hung
Bay Windows
Hometime Windows & Doors
Glendora, CAGood Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
SoCal Window Pros
San Dimas, CAEducational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Smart Window Company
Torrance, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Double-Hung
Energy-Efficient Options
Vinyl Frames
Glass Doors
Window Replacement/Installation
Tempered Glass
Discount Window And Door
Redondo Beach, CAGood Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Metal Frames
Glass Doors
Vinyl Frames
Energy-Efficient Options
Skylights
Dede Windows and Doors / window replacement
Anaheim, CAFree assessment
Educational website
American-made vinyl
Energy-efficient windows and doors
Price Transparency
Educational Website
Good Customer Service
Services Offered
Vinyl Frames
Glass Doors
Window Replacement/Installation
Custom Window Designs
Harbor Construction
Huntington Beach, CAEducational Website
Good Customer Service
Timely Service
Free assessment
Price Transparency
Services Offered
Bay Windows
Vinyl Frames
Double-Hung
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Concierge Home Remodeling
Tarzana, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
California Window & Solar
Costa Mesa, CAPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
Vinyl Frames
Metal Frames
Andes windows & doors
Norco, CAOnline portfolio
Good Customer Service
Price Transparency
Educational Website
Spanish-speaking
Offers window treatments
Free assessment
Services Offered
Bay Windows
Window Replacement/Installation
Double-Hung
Vinyl Frames
Glass Doors
United Builders Windows & Doors
Rancho Cucamonga, CAGood Customer Service
Price Transparency
Educational Website
Timely Service
Free assessment
Services Offered
Window Replacement/Installation
Double-Hung
Energy-Efficient Options
Bay Windows
Glass Doors
Mancino Door & Window, Inc.
Glendora, CAFree assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Golden Age Builders
West Hollywood, CAUnique window options
Free assessment
Timely Service
3D design and planning tool
Price Transparency
In-home consultations
Good Customer Service
Services Offered
Window Replacement/Installation
Energy Core Construction
Anaheim, CATimely Service
Free assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Glass Doors
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
CGH Solutions - California Green Home Solutions
Van Nuys, CAPrice Transparency
Educational Website
Good Customer Service
Services Offered
Vinyl Frames
Energy-Efficient Options
Double-Hung
Glass Doors
Window Replacement/Installation
Best Windows and Doors OC
Anaheim, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Vinyl Frames
Glass Doors
Custom Window Designs
Window Replacement/Installation
Save-On Glass & Screen
Westminster, CATimely Service
Free assessment
Good Customer Service
Services Offered
Window Repair
Glass Doors
Glass Showers
Mirrors
Window Replacement/Installation
TMC Windows & Doors
Orange, CAPrice Transparency
Free assessment
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Can-Do Windows & Doors
Santa Ana, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Metal Frames
Fiberglass Frames
Double-Hung
Wood Frames
Energy-Efficient Options
Vinyl Frames
Glass Doors
Window King
Huntington Beach, CAPrice Transparency
Educational Website
Free assessment
Services Offered
Energy-Efficient Options
Double-Hung
Glass Doors
Vinyl Frames
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in San Gabriel, 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 San Gabriel Saves You Money
By upgrading to energy-efficient windows, you and your family can benefit in several ways, such as:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its value, particularly if you have an older home.
- Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by 117 pounds per year on average.
- Save on energy bills: Once you install energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
Estimated Cost of Window Replacement in San Gabriel
Each window replacement company provides various services and has varying costs depending on several factors.
How Much Do New Windows Cost?
The national average cost to install a single window is about $600 but can range anywhere from $200 to $1,200. But costs vary remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door replacements, which carry a higher price tag.
It’s important to keep in mind that windows with higher efficiency may cost more initially but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save San Gabriel homeowners $509+ a year when replacing single-pane windows.
Requesting free quotes from several companies is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
When it comes to window installations, there are typically two kinds that your installer will offer: full-frame and pocket installations.
A full-frame installation is a total window replacement. It involves removing the old window, the windowsill, and the exterior and interior trim. It also involves additional materials, including insulation and drip edges, which raise the overall cost of the project. It’s also worth noting that you may have to touch up the paint surrounding the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the existing frame. Pocket installations are simpler and won’t carry as large a bill, but you can’t do this kind of installment if you have any pre-existing rot or water damage.
Your window replacement company should be able to help you understand what’s best for your needs. In San Gabriel, the decision will mostly depend on the age of your windows and if there’s any damage. Wood can decay if it’s not maintained properly over the years, so it’s good to have a professional assess your frames and window sills.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in San Gabriel
EcoWatch differs from other reviewers, as we’re examining these companies through a sustainability lens. We have assessed the best window replacement companies in San Gabriel mostly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
Because this is a guide for San Gabriel, we only included companies that provide services to the city. There are certainly other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in San Gabriel.
Work Quality
When picking new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand you get. We do give window installers higher marks 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 nice things to say about their experience with a certain installer, you won’t see it featured on EcoWatch.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing providers’ prices, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed, windows are a substantial investment, so you’ll want to make sure that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to San Gabriel’s climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of San Gabriel window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
San Gabriel, CA Window Replacement FAQs
What is the average cost to install new windows?
The national average cost to install one window is about $600 but can range between $200 and $1,200, depending on several factors. The price is generally influenced by the location of your property, the type and material of the window and the size of the window. 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.
What kind of window is the best for energy efficiency?
A window’s energy efficiency depends on a number of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
What services do window replacement companies provide?
Window installation professionals cover the entire process — from replacing your old windows with new ones to cleaning up after the installation. In addition, many companies offer window manufacturing, customization and repairs.
Should I replace my windows all at the same time?
If you’re upgrading your windows to save on your energy bills, replacing all of the windows at once is the only way to gain that benefit. However, if you have only a few windows that are damaged or drafty, you can replace just those.