20 Best Window Companies in El Monte, CA (2025 Reviews)
Looking to improve your home’s look? The top window replacement companies can help.
We analyzed all the top-rated window companies in El Monte 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
The EcoWatch Reviews team is all about helping El Monte homeowners find eco-conscious solutions for their homes. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.
Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.
Efficient windows are especially important in El Monte, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $509 per 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 El Monte
The EcoWatch Reviews team examined many installers in El Monte to find the best ones for our readers. The providers mentioned in this article scored best in our review categories, such as energy-efficient offerings, price, customer service, availability, local expertise 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 has windows expertise in El Monte. Window World has about 27 years of experience in the window installation industry. Its reputation is backed by hundreds of positive reviews from customers online.
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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Window World cost in El Monte?Window World doesn’t have any prices displayed on its website, but it's known for offering some of the most affordable window installations around. The best way to know for sure is to request a free quote from the company.

Milgard Windows & Doors
EnergyStar Partner
Wide network of installers
Lifetime warranty available
Entails hiring third-party contractors
Limited additional services
Milgard Windows & Doors has the best local installation in El Monte. Milgard has about 60 years of experience in the window installation industry. Its reputation is backed by hundreds of positive reviews from customers online.
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 WindowsThe 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. Not all of Milgard’s offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Milgard Windows & Doors cost in El Monte?Milgard doesn’t have any prices displayed on its website, but it offers different kinds of windows at varying price points. The best way to know for sure is to request a free quote from the company.

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 has the best availability in El Monte. Andersen has about 27 years of experience in the window installation industry. Its reputation is backed by hundreds of positive reviews from customers online.
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 WindowsA 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. Not all of Andersen’s offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Renewal by Andersen cost in El Monte?Andersen doesn’t have any prices displayed 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. The best way to know for sure is to request a free quote from the company.
Please note that the companies in this section are national, which means the quality of the service may vary depending on your local crew. We have tried to stay unbiased and transparent by including both pros and cons for each provider.
More Window Companies in El Monte
Renewal by Andersen of Los Angeles
Torrance, CAFree assessment
Educational Website
31,000+ projects completed
Price Transparency
In-home or virtual consultations
Good Customer Service
Financing options available
Services Offered
Glass Doors
Skylights
Bay Windows
Double-Hung
Window Replacement/Installation
Hometime Windows & Doors
Glendora, CAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
SoCal Window Pros
San Dimas, CAFree assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Dede Windows and Doors / window replacement
Anaheim, CAAmerican-made vinyl
Educational Website
Price Transparency
Educational website
Good Customer Service
Energy-efficient windows and doors
Free assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Custom Window Designs
Glass Doors
Harbor Construction
Huntington Beach, CATimely Service
Price Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Double-Hung
Energy-Efficient Options
Window Replacement/Installation
Vinyl Frames
Glass Doors
Bay Windows
Smart Window Company
Torrance, CAEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Energy-Efficient Options
Tempered Glass
Window Replacement/Installation
Double-Hung
Glass Doors
Vinyl Frames
Discount Window And Door
Redondo Beach, CAGood Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Skylights
Energy-Efficient Options
Metal Frames
Glass Doors
Vinyl Frames
Andes windows & doors
Norco, CAEducational Website
Price Transparency
Offers window treatments
Free assessment
Online portfolio
Spanish-speaking
Good Customer Service
Services Offered
Vinyl Frames
Bay Windows
Double-Hung
Glass Doors
Window Replacement/Installation
California Window & Solar
Costa Mesa, CAFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Metal Frames
Energy-Efficient Options
Glass Doors
Vinyl Frames
United Builders Windows & Doors
Rancho Cucamonga, CAFree assessment
Good Customer Service
Educational Website
Timely Service
Price Transparency
Services Offered
Double-Hung
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Bay Windows
Concierge Home Remodeling
Tarzana, CAFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Retro Windows and Patio Doors LLC
Fontana, CAPrice Transparency
Family-owned and operated
Educational Website
Lifetime warranty
Free assessment
Good Customer Service
Energy-efficient windows and doors
Services Offered
Tempered Glass
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Mancino Door & Window, Inc.
Glendora, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Energy Core Construction
Anaheim, CAGood Customer Service
Free assessment
Educational Website
Price Transparency
Timely Service
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Energy-Efficient Options
Golden Age Builders
West Hollywood, CAUnique window options
Timely Service
Price Transparency
Free assessment
3D design and planning tool
Good Customer Service
In-home consultations
Services Offered
Window Replacement/Installation
Best Windows and Doors OC
Anaheim, CAGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Glass Doors
Custom Window Designs
Vinyl Frames
Window Replacement/Installation
TMC Windows & Doors
Orange, CAPrice Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Save-On Glass & Screen
Westminster, CATimely Service
Good Customer Service
Free assessment
Services Offered
Glass Showers
Window Replacement/Installation
Glass Doors
Mirrors
Window Repair
Can-Do Windows & Doors
Santa Ana, CAPrice Transparency
Educational Website
Free assessment
Services Offered
Energy-Efficient Options
Double-Hung
Window Replacement/Installation
Vinyl Frames
Metal Frames
Wood Frames
Fiberglass Frames
Glass Doors
CGH Solutions - California Green Home Solutions
Van Nuys, CAPrice Transparency
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Vinyl Frames
Glass Doors
Double-Hung
Energy-Efficient Options
Calculate how much you can expect to pay for window installation and replacement in El Monte, 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 El Monte Saves You Money
There are quite a few perks of upgrading to energy-efficient windows. A few reasons you may want to consider making the switch include the following:
- Save on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Upgrading to energy-efficient models can help lower that number, therefore saving you about 12% more on your bills.
- Decrease your carbon footprint: In El Monte, you can cut your indirect greenhouse gas emissions by about 117 pounds per year when you switch to energy-efficient windows.
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, leaky or potentially even damaged in some way. Upgrading your windows could help raise the value of your home if you decide to sell.
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
Estimated Cost of Window Replacement in El Monte
Let’s take a look at the cost of installing new windows and the kinds of services offered by installers.
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 offer door replacements, which carry a higher price tag.
Whether or not you want 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 $509 a year on your energy bills in El Monte.
The cost of your window installation will also vary based on the kind of material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
Generally, there are two kinds of window installation services companies offer: full-frame and pocket installations.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has significant rot. With this service, your installers will replace the complete window, including the frame, trim and sill. A pocket installation involves installing a new window without replacing the frame. This means instead of removing the whole window and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company can help you decide which type of installation you should get.
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 El Monte
EcoWatch reviews differ from most reviews because we’re examining these companies through a sustainability lens. Along with energy efficiency, we assessed each installer and ranked them based on the following methodology:
Service Area
Since this is a guide for El Monte, we gave more points to companies that serve the city. There are other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in El Monte.
Work Quality
We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each company in our guide to ensure its technicians are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don’t have good things to say about their experience with a certain installer, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window companies won’t always provide the highest quality service. On the other hand, we want to ensure we’re highlighting companies that offer a wide range of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed previously, windows are a considerable investment, so you’ll want to make sure that investment is well protected. Window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of El Monte’s climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of El Monte window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
El Monte, CA Window Replacement FAQs
What is the typical cost to install new windows in a home?
The national average cost of installing one window is around $600 but can range from $200 to $1,200, depending on a variety of factors. The price is often influenced by the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What type 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 usually the most energy-efficient and are certified by the U.S. Department of Energy.
What do window installers do?
Window installers visit your home to remove your old windows and replace them with new ones. Some companies install products manufactured by other companies, whereas others install their own windows. The installer will also clean up after the installation is complete.
Should I replace my windows all at once?
If your windows are greater than 20 years old, it’s probably time to replace all of them. By that point, they are usually less efficient, draftier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less stress.