20 Best Window Companies in Muscoy, CA (2025 Reviews)
If you’re looking to upgrade to new windows, our guide to the best window installation companies can help.
We analyzed all the top-rated window companies in Muscoy 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
A review of the best window installation companies in Muscoy may not seem like the most captivating article on EcoWatch, but trust us, windows impact your life more than you might think. Drafty windows can make your AC or heater work extra hard in the summer or winter.
Installing efficient windows on your home can help you save money each month on your power bills — and you can help the environment as well.
Because windows are so important for 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 replacement companies, so you can more easily make an informed decision.
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 Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
Best Window Installation & Replacement Companies in Muscoy
The EcoWatch Reviews team evaluated dozens of window companies in Muscoy to find the best ones for our readers. The companies we’ve included in this article scored best in our categories: energy-efficient offerings, customer service, price, 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 offers windows expertise in Muscoy. 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.
It has established itself as 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 caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Muscoy?Even though prices are not available on Window World’s website, 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 pricing.

Milgard Windows & Doors
EnergyStar Partner
Wide network of installers
Lifetime warranty available
Entails hiring third-party contractors
Limited additional services
Milgard Windows & Doors offers the best local installation in Muscoy. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has been in the window installation industry for about 60 years.
It has established itself as a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors caters 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 Muscoy?Even though prices are not available on Milgard’s website, it offers different kinds of windows at varying price points. You can inquire about a free quote on its website for more information about pricing.

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 offers the best availability in Muscoy. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation industry for about 27 years.
It has established itself as 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 caters to eco-conscious consumers by providing energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Muscoy?Even though prices are not 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. You can inquire about a free quote on its website for more information about pricing.
We’ve recommended providers with good reputations, but note that these are national companies, so your service may vary depending on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for each company reviewed.
More Window Companies in Muscoy
Renewal by Andersen of Orange County
Laguna Hills, CAGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Bay Windows
Glass Doors
Double-Hung
Window Replacement/Installation
Retro Windows and Patio Doors LLC
Fontana, CAEducational Website
Price Transparency
Free assessment
Energy-efficient windows and doors
Lifetime warranty
Family-owned and operated
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Tempered Glass
United Builders Windows & Doors
Rancho Cucamonga, CAFree assessment
Educational Website
Timely Service
Price Transparency
Good Customer Service
Services Offered
Energy-Efficient Options
Bay Windows
Window Replacement/Installation
Double-Hung
Glass Doors
Andes windows & doors
Norco, CAPrice Transparency
Offers window treatments
Spanish-speaking
Good Customer Service
Educational Website
Online portfolio
Free assessment
Services Offered
Vinyl Frames
Double-Hung
Bay Windows
Window Replacement/Installation
Glass Doors
Hometime Windows & Doors
Corona, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
SoCal Window Pros
San Dimas, CAEducational Website
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Dede Windows and Doors / window replacement
Anaheim, CAFree assessment
Educational website
Energy-efficient windows and doors
American-made vinyl
Educational Website
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Custom Window Designs
Vinyl Frames
Glass Doors
California Window & Solar
Costa Mesa, CAPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Metal Frames
Energy-Efficient Options
Vinyl Frames
Mancino Door & Window, Inc.
Laguna Niguel, CAPrice Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Harbor Construction
Huntington Beach, CATimely Service
Price Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Glass Doors
Double-Hung
Energy-Efficient Options
Bay Windows
Vinyl Frames
Window Replacement/Installation
Ameristar Windows
Riverside, CAFree assessment
Good Customer Service
Price Transparency
Services Offered
Glass Showers
Glass Doors
Window Replacement/Installation
Vinyl Frames
Energy-Efficient Options
High Desert Window & Glass
Hesperia, CAEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Double-Hung
Window Replacement/Installation
Glass Showers
Tempered Glass
Mirrors
Glass Doors
Energy Core Construction
Anaheim, CAGood Customer Service
Educational Website
Free assessment
Timely Service
Price Transparency
Services Offered
Bay Windows
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
TMC Windows & Doors
Orange, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Best Windows and Doors OC
Anaheim, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Vinyl Frames
Window Replacement/Installation
Glass Doors
Custom Window Designs
Can-Do Windows & Doors
Santa Ana, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Glass Doors
Fiberglass Frames
Window Replacement/Installation
Energy-Efficient Options
Double-Hung
Metal Frames
Wood Frames
Vinyl Frames
Save-On Glass & Screen
Westminster, CAFree assessment
Timely Service
Good Customer Service
Services Offered
Window Replacement/Installation
Window Repair
Glass Showers
Mirrors
Glass Doors
Window King
Huntington Beach, CAEducational Website
Free assessment
Price Transparency
Services Offered
Double-Hung
Energy-Efficient Options
Vinyl Frames
Glass Doors
Window Replacement/Installation
San Bernardino Safe Glass Window Replacement INC.
San Bernardino, CAFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Glass Repair
Vinyl Frames
Glass Doors
Glass Showers
Window Replacement/Installation
Window Repair
The Glass Guru
Redlands, CAFree assessment
Educational Website
Good Customer Service
Services Offered
Vinyl Frames
Skylights
Window Repair
Triple Pane Glass
Wood Frames
Storm/Impact Windows
Fiberglass Frames
Glass Repair
Mirrors
Metal Frames
Screen Repair
Custom Glass
Energy-Efficient Options
Glass Showers
Glass Doors
Window Replacement/Installation
Tempered Glass
Calculate how much you can expect to pay for window installation and replacement in Muscoy, 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 Muscoy Saves You Money
There are several perks of switching to energy-efficient windows. A few reasons you may want to consider making the switch include the following:
- Save money on power bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of residential energy use. Installing energy-efficient windows can help reduce that amount, which helps you save some money on your bills.
- 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: When you have an older home, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its real estate value.
- Decrease your carbon footprint: In Muscoy, you can lower your indirect greenhouse gas emissions by about 117 pounds per year once you switch to energy-efficient windows.
Estimated Cost of Window Replacement in Muscoy
Let’s take a look at the cost of window installation and the kinds of services offered by installers.
How Much Do New Windows Cost?
The national average cost to replace one window is about $600 but can range anywhere from $200 to $1,200. This is because window installations are based on a variety of factors specific to your home, like the size, material and number of windows you need to install, as well as the location of your property.
Whether or not you pick energy-efficient windows is another factor that will determine the cost. These will usually cost more than other windows, but on the other hand, you can save about $540 a year on your energy bills in Muscoy.
Costs will also vary depending on the material of your frame. Aluminum frames cost the least. They’re sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
The first step when planning a window installation is to figure out whether you should get a full-frame or pocket installation.
A full-frame installation is a replacement of the total window. It involves removing the old window, the windowsill, and the exterior and interior trim. It also involves additional materials, such as insulation and drip edges, which raise the total cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. Pocket installations (or retrofits) entail installing a new window within the existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.
If you’re still trying to decide which type of installation you should get, you can consult with your provider and get their recommendation. The decision mostly is influenced by the age of your window frames and if there’s any damage.
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 Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
How We Choose the Best Window Installers in Muscoy
In our search to find the most reliable, eco-friendly window installers in Muscoy, the EcoWatch Reviews team evaluated dozens of companies before landing on these. Along with energy efficiency, we reviewed each installer and ranked them based on the following methodology:
Service Area
Since this is a guide for Muscoy, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in Muscoy.
Work Quality
We’re willing to bet that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer featured in our guide to make sure its technicians are well-qualified and that the company has gotten lots of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the highest rates of 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 quality of parts, professionalism, cost, quality of installation, warranty and more.
Cost
This one is a give-and-take: as with other services, cheap window installers are not going to provide the most quality service. On the other hand, we want to make sure we’re highlighting companies that offer a variety 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 a proven track record in the industry. Window installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Muscoy, CA Window Replacement FAQs
How much should a window install cost?
The national average cost of replacing a single window is about $600 but can range from $200 to $1,200, based on several factors. The price is usually influenced by the location of your property, the type and material of the window and the size of the window. Also, bear 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 type of window is the best for energy efficiency?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open are more efficient than windows that do. If you want to be sure you’re getting the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they’re certified energy-efficient by the U.S. Department of Energy.
Can I install my own windows?
If you’re handy and know how to replace a window, you may be able to install your own windows. However, if you don’t have the time or skills, we recommend hiring a professional.
What time of year is the best time to replace my windows?
Replacement windows can be installed any time of the year, but autumn might be the best season. No matter 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 doesn’t necessarily matter that much. What’s more important than the temperature is that the weather should be dry.