20 Best Window Companies in Fountain Valley, CA (2025 Reviews)
Thinking about improving your property’s insulation? The best window replacement companies can help.
We analyzed all the top-rated window companies in Fountain Valley 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
Although clean energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home’s efficiency can also have a big impact on home energy conservation. Potential leaks or drafts can reduce your home’s energy efficiency by up to 30%, according to the Department of Energy. In Fountain Valley, that’s almost $388 a year that you could save on your electricity bills by making the switch.
Installing energy-efficient windows on your property can help you save money each month on your electric bills — and you can help the environment, too.
Unlike other sites, EcoWatch ranks window installation companies on energy efficiency while also balancing 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 Fountain Valley
The EcoWatch team researched many window providers in Fountain Valley to find the best ones for our readers. The installers we’ve included in this article scored best in our categories, including 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 provides windows expertise in Fountain Valley. Window World has been in the window installation business for about 27 years. Its reputation is backed by several positive reviews on customer review websites.
You may want to consider choosing 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 WindowsWindow World is an Energy Star partner and has a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in Fountain Valley?While prices are not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

Milgard Windows & Doors
EnergyStar Partner
Wide network of installers
Lifetime warranty available
Entails hiring third-party contractors
Limited additional services
Milgard Windows & Doors provides the best local installation in Fountain Valley. Milgard has been in the window installation business for about 60 years. Its reputation is backed by several positive reviews on customer review websites.
You may want to consider choosing Milgard 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.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors is an Energy Star partner and has a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Milgard representative when inquiring about services.
How much does Milgard Windows & Doors cost in Fountain Valley?While prices are not readily available on Milgard’s website, it offers different kinds of windows at varying price points. Requesting a free quote on its website is the best way to know for sure.

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 provides the best availability in Fountain Valley. Andersen has been in the window installation business for about 27 years. Its reputation is backed by several positive reviews on customer review websites.
You may want to consider choosing Andersen 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.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner and has a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Fountain Valley?While prices are not readily available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Requesting a free quote on its website is the best way to know for sure.
Please note that the companies in this section are national, meaning the quality of customer service may depend on your local team. We have tried to be unbiased and transparent by describing both pros and cons for each provider.
More Window Companies in Fountain Valley
Renewal by Andersen of Orange County
Laguna Hills, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Bay Windows
Double-Hung
Harbor Construction
Huntington Beach, CAGood Customer Service
Free assessment
Timely Service
Price Transparency
Educational Website
Services Offered
Glass Doors
Energy-Efficient Options
Bay Windows
Window Replacement/Installation
Vinyl Frames
Double-Hung
California Window & Solar
Costa Mesa, CAFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Metal Frames
Vinyl Frames
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
Hometime Windows & Doors
Santa Ana, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
Dede Windows and Doors / window replacement
Anaheim, CAAmerican-made vinyl
Free assessment
Energy-efficient windows and doors
Educational website
Good Customer Service
Price Transparency
Educational Website
Services Offered
Custom Window Designs
Glass Doors
Vinyl Frames
Window Replacement/Installation
Mancino Door & Window, Inc.
Laguna Niguel, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Smart Window Company
Torrance, CAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Tempered Glass
Glass Doors
Window Replacement/Installation
Double-Hung
Energy-Efficient Options
Vinyl Frames
Discount Window And Door
Redondo Beach, CAFree assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Metal Frames
Skylights
Energy-Efficient Options
Vinyl Frames
Glass Doors
Andes windows & doors
Norco, CAEducational Website
Offers window treatments
Price Transparency
Online portfolio
Spanish-speaking
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Bay Windows
Double-Hung
Glass Doors
Vinyl Frames
SoCal Window Pros
San Dimas, CAFree assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Retro Windows and Patio Doors LLC
Fontana, CALifetime warranty
Good Customer Service
Family-owned and operated
Price Transparency
Energy-efficient windows and doors
Educational Website
Free assessment
Services Offered
Tempered Glass
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
United Builders Windows & Doors
Rancho Cucamonga, CAFree assessment
Price Transparency
Good Customer Service
Timely Service
Educational Website
Services Offered
Bay Windows
Window Replacement/Installation
Energy-Efficient Options
Double-Hung
Glass Doors
Save-On Glass & Screen
Westminster, CAFree assessment
Good Customer Service
Timely Service
Services Offered
Mirrors
Glass Showers
Window Repair
Glass Doors
Window Replacement/Installation
Window King
Huntington Beach, CAEducational Website
Free assessment
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Double-Hung
Glass Doors
Vinyl Frames
Can-Do Windows & Doors
Santa Ana, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Energy-Efficient Options
Vinyl Frames
Double-Hung
Glass Doors
Fiberglass Frames
Metal Frames
Window Replacement/Installation
Wood Frames
Best Windows and Doors OC
Anaheim, CAGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Custom Window Designs
Glass Doors
Vinyl Frames
TMC Windows & Doors
Orange, CAFree assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Energy Core Construction
Anaheim, CAFree assessment
Educational Website
Price Transparency
Timely Service
Good Customer Service
Services Offered
Energy-Efficient Options
Bay Windows
Window Replacement/Installation
Glass Doors
Golden Age Builders
West Hollywood, CAFree assessment
Good Customer Service
Unique window options
Timely Service
3D design and planning tool
In-home consultations
Price Transparency
Services Offered
Window Replacement/Installation
Ameristar Windows
Riverside, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Glass Showers
Glass Doors
Window Replacement/Installation
Vinyl Frames
Calculate how much you can expect to pay for window installation and replacement in Fountain Valley, 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 Fountain Valley Saves You Money
By upgrading to energy-efficient windows, you can benefit in several ways, such as:
- Save money on power bills: After you upgrade to energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll need less energy to heat or cool your home.
- Protect your investment: When you have an older home, your windows could also be outdated or damaged. Upgrading and repairing your windows is an important part of maintaining your property and its real estate value.
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help reduce damage from the sun's UV rays to your floors, carpets and furniture.
- Reduce your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% after you install Energy Star certified windows. In Fountain Valley, that’s about 117 pounds per year on average.
Estimated Cost of Window Replacement in Fountain Valley
Each window installer provides various services and has varying costs based on several factors.
How Much Do New Windows Cost?
The average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. Costs will vary considerably based on your location, the current condition of your home, the quality of your products and the number of windows you need. Many window companies also offer door installations and other add-ons like shutters, baths, coating and more. Additional services will increase overall project costs.
Bear in mind that energy-efficient windows may come at a higher price tag, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.
We recommend requesting free quotes from several window installers to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
In general, there are two kinds of window replacement services companies offer: full-frame and pocket installations.
Full-frame installations involve 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 a great amount of damage. Full-frame installations require more time and labor and will increase overall costs. A pocket installation entails replacing a window within the existing frame. So, instead of tearing out the whole unit and rebuilding it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.
If you’re unsure which type of window installation service you should get, your installer can advise you. Generally, the choice is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.
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 Fountain Valley
In our search to find the most reliable, eco-friendly window installers in Fountain Valley, EcoWatch landed on the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed each installer and ranked them using the following methodology:
Service Area
Because this is a guide for Fountain Valley, we only included companies that cover the city. There are certainly reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in Fountain Valley.
Work Quality
When choosing new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the type of window you get. We do give window installers more points if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across nearly every category, including cost, warranty, professionalism, quality of installation, quality of parts and more.
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 gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed, windows are a significant investment, so you’ll want to make sure that investment is well protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Fountain Valley’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Fountain Valley window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Fountain Valley, CA Window Replacement FAQs
What is the typical cost to install new windows in a home?
The national average cost to replace a single window is about $600 but can range from $200 to $1,200, depending on several factors. The price is often dependent on 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.
Which kind of window should I get?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open will be more efficient than windows that do. To be sure you’ll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they’re certified energy-efficient by the U.S. Department of Energy.
Can you install your own windows?
If you’re handy and have the time and patience to do the job right, it’s possible to install your own windows. But if you don’t have the time or know-how, we recommend hiring a professional.
What time of year should I replace my windows?
Although you can install windows any time of year, warmer weather is generally better for installing replacement windows. Additionally, it shouldn’t be raining, since rain can make the installation harder.
Should I replace all my windows at once?
If you’re upgrading your windows to get more efficient windows, replacing all the windows at once is the only way to see a noticeable difference. On the other hand, if you have just one or two windows that are broken or leaky, you can replace just those.