20 Best Window Companies in Sierra Madre, CA (2025 Reviews)
Thinking about replacing your windows? We’ve got all the information you need in this guide to the top window installation companies.
We analyzed all the top-rated window companies in Sierra Madre and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
Please enter a valid 5-digit zip code!
Why you can trust EcoWatch
Whether you're doing renovations or have old windows, windows play an important role in conserving electricity in your home. Drafty windows can make your home uncomfortable in the summer or winter.
Installing energy-efficient windows on your property can help you save money every month on your electric bills — and you can help the environment, too.
Efficient windows are particularly important in Sierra Madre, where summers are long and hot. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $509 a year.
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 Sierra Madre
The EcoWatch team evaluated dozens of installers across the country to find the top window companies for our readers. We assessed the companies based on their energy-efficient offerings, coverage area, price, local experience, customer service and more.

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. This window installation company has been in business since 1995 and currently serves nearly every state except Mississippi and West Virginia. Its reputation is backed by several positive reviews on customer review websites.
You may want to consider going with Andersen if you're interested in a installer 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’s commitment to sustainability shows in its 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 Sierra Madre?Even though 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. If you’d like more accurate information, you can receive a quote on the company’s website.

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. This window installation company has been in business since 1995 and currently serves 200 locations nationwide. Its reputation is backed by several positive reviews on customer review websites.
You may want to consider going with Window World if you're interested in a installer 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’s commitment to sustainability shows in its 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 Sierra Madre?Even though prices are not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. If you’d like more accurate information, 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. This window installation company has been in business since 1962 and currently serves Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Its reputation is backed by several positive reviews on customer review websites.
You may want to consider going with Milgard if you're interested in a installer 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’s commitment to sustainability shows in its 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 Sierra Madre?Even though prices are not readily available on Milgard’s website, it offers different kinds of windows at varying price points. If you’d like more accurate information, you can receive a quote on the company’s website.
One thing to note is that the companies in this section are national, meaning the quality of customer service may vary depending on your local team. We have tried to stay unbiased and transparent by listing both pros and cons for each provider.
More Window Companies in Sierra Madre
Renewal by Andersen of Los Angeles
Torrance, CA
Good Customer Service
Price Transparency
Free assessment
31,000+ projects completed
Educational Website
In-home or virtual consultations
Financing options available
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Skylights
Double-Hung
Hometime Windows & Doors
Glendora, CA
Good Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
SoCal Window Pros
San Dimas, CA
Educational Website
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Dede Windows and Doors / window replacement
Anaheim, CA
Energy-efficient windows and doors
American-made vinyl
Free assessment
Price Transparency
Educational Website
Educational website
Good Customer Service
Services Offered
Vinyl Frames
Custom Window Designs
Window Replacement/Installation
Glass Doors
Smart Window Company
Torrance, CA
Educational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Tempered Glass
Double-Hung
Window Replacement/Installation
Vinyl Frames
Glass Doors
Energy-Efficient Options
Discount Window And Door
Redondo Beach, CA
Good Customer Service
Free assessment
Price Transparency
Services Offered
Vinyl Frames
Skylights
Energy-Efficient Options
Glass Doors
Metal Frames
Window Replacement/Installation
Concierge Home Remodeling
Tarzana, CA
Educational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Harbor Construction
Huntington Beach, CA
Good Customer Service
Price Transparency
Free assessment
Timely Service
Educational Website
Services Offered
Vinyl Frames
Energy-Efficient Options
Double-Hung
Window Replacement/Installation
Bay Windows
Glass Doors
United Builders Windows & Doors
Rancho Cucamonga, CA
Price Transparency
Good Customer Service
Free assessment
Educational Website
Timely Service
Services Offered
Glass Doors
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Bay Windows
Andes windows & doors
Norco, CA
Offers window treatments
Free assessment
Educational Website
Online portfolio
Price Transparency
Spanish-speaking
Good Customer Service
Services Offered
Bay Windows
Vinyl Frames
Window Replacement/Installation
Double-Hung
Glass Doors
Retro Windows and Patio Doors LLC
Fontana, CA
Good Customer Service
Family-owned and operated
Free assessment
Price Transparency
Educational Website
Energy-efficient windows and doors
Lifetime warranty
Services Offered
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
Tempered Glass
California Window & Solar
Costa Mesa, CA
Good Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Vinyl Frames
Glass Doors
Window Replacement/Installation
Metal Frames
Energy-Efficient Options
Mancino Door & Window, Inc.
Glendora, CA
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Golden Age Builders
West Hollywood, CA
Free assessment
Good Customer Service
3D design and planning tool
In-home consultations
Unique window options
Price Transparency
Timely Service
Services Offered
Window Replacement/Installation
Energy Core Construction
Anaheim, CA
Timely Service
Good Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Bay Windows
CGH Solutions - California Green Home Solutions
Van Nuys, CA
Educational Website
Price Transparency
Good Customer Service
Services Offered
Vinyl Frames
Glass Doors
Window Replacement/Installation
Double-Hung
Energy-Efficient Options
Best Windows and Doors OC
Anaheim, CA
Educational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Custom Window Designs
Glass Doors
Vinyl Frames
TMC Windows & Doors
Orange, CA
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Save-On Glass & Screen
Westminster, CA
Free assessment
Good Customer Service
Timely Service
Services Offered
Mirrors
Window Repair
Window Replacement/Installation
Glass Doors
Glass Showers
Can-Do Windows & Doors
Santa Ana, CA
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Double-Hung
Vinyl Frames
Energy-Efficient Options
Glass Doors
Wood Frames
Metal Frames
Fiberglass Frames
Calculate how much you can expect to pay for window installation and replacement in Sierra Madre, 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 Sierra Madre Saves You Money
Switching to energy-efficient windows can improve the comfort of your home and help you save on energy bills. Here's more information on how upgrading your windows could benefit you:
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help increase the value of your house if you decide to sell.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Reduce your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In Sierra Madre, that’s about 117 pounds per year on average.
- Save money on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of household energy use. Installing energy-efficient windows can help reduce that amount, which helps you save $509 a year on your bills.
Estimated Cost of Window Replacement in Sierra Madre
Let’s take a look at the cost of window installation and the types 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. But costs differ considerably 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 and replacements, which will make your project cost more.
It’s important to keep in mind that windows with higher efficiency may cost more initially but can save you hundreds of dollars via returns on your energy bills. Investing in Energy Star certified windows can save Sierra Madre homeowners $509+ a year when replacing single-pane windows.
How much your window installation costs will also vary depending on the type of window material you choose for the frames. Wood windows are usually the most expensive, but it depends on whether they are 100% 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?
In regard to window replacements, there are generally two kinds that your provider will offer: full-frame and pocket installations.
A full-frame installation is a replacement of the total window. This service 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 increase the overall cost of the project. Also worth noting: you may have to touch up the paint surrounding the window after a full-frame installation. A pocket installation involves replacing a window within the old frame. So, instead of removing the whole unit and rebuilding it, the window installer will just slide the replacement window (also called a retrofit or insert window) into the frame.
Your window replacement company will be able to help you choose what’s best for your needs. In Sierra Madre, the decision will mostly be based on the age of your windows and if there’s any moisture damage. Wood can decay if it’s not properly maintained over the years, so it’s a good idea 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 Sierra Madre
EcoWatch reviews differ from other reviews, as we look at these companies through a sustainability lens. We have evaluated the best window installers in Sierra Madre mostly based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve Sierra Madre so you can find the best 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 brand 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
Another self-explanatory yet very important review factor is customer feedback. If the majority of customers don’t have positive feedback about their service from a certain window installation company, it won’t be featured on EcoWatch.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers’ prices, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important. That’s why window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Sierra Madre’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Sierra Madre window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Sierra Madre, CA Window Replacement FAQs
What is the average cost to replace windows?
The average cost of replacing a single window can range from $450 to $650. There are a variety of factors that affect how much it costs, including your property’s location, the number of windows, local labor costs, styles and sizes of windows, how energy-efficient the windows are and the materials used in designing the windows.
Which type of window should I get?
A window’s energy efficiency is influenced by a number of factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient since they are certified by the U.S. Department of Energy.
What services do window installation companies offer?
Window installers travel to your property to remove your old windows and replace them with new ones. Some providers install products made by other companies, whereas others install their own windows. The installer will also clean up after the installation is finished.
Should I replace all my windows at once?
If you want to get more efficient windows and save money on your energy bills, replacing all your windows together is the only way to gain that benefit. However, if you have only a few windows that are damaged or leaky, you can replace just those.



