20 Best Window Companies in Lake Los Angeles, CA (2025 Reviews)
Looking to improve your property’s energy efficiency? The best window replacement companies can help.
We analyzed all the top-rated window companies in Lake Los Angeles 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 updating for style or have old windows, windows play a crucial role in conserving energy in your home. Potential leaks or drafts can cut your home’s energy efficiency by up to 30%, according to the Department of Energy. In Lake Los Angeles, that’s almost $509 a year that you could save on your power bills by making the switch.
Replacement windows improve your home’s insulation, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
Unlike other review sites, EcoWatch ranks window replacement companies on energy efficiency while also taking into consideration 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 Lake Los Angeles
The EcoWatch Reviews team evaluated dozens of installers across the country to find the top window replacement companies for our readers. The companies in this article scored best in our review categories, such as energy-efficient offerings, local expertise, customer service, availability, price 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 Lake Los Angeles. Window World has been in the window industry for around 27 years.
It 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Lake Los Angeles?Window World doesn’t have any cost information displayed on its website, but it's known for offering some of the most affordable window installations around. Getting 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 offers the best local installation in Lake Los Angeles. Milgard has been in the window industry for around 60 years.
It 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Lake Los Angeles?Milgard doesn’t have any cost information displayed on its website, but it offers different kinds of windows at varying price points. Getting 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 offers the best availability in Lake Los Angeles. Andersen has been in the window industry for around 27 years.
It 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Lake Los Angeles?Andersen doesn’t have any cost information 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. Getting a free quote on its website is the best way to know for sure.
We try to stay unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Lake Los Angeles
Hometime Windows & Doors
Glendora, CAFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
SoCal Window Pros
San Dimas, CAEducational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
United Builders Windows & Doors
Rancho Cucamonga, CAPrice Transparency
Timely Service
Good Customer Service
Free assessment
Educational Website
Services Offered
Double-Hung
Window Replacement/Installation
Glass Doors
Bay Windows
Energy-Efficient Options
Retro Windows and Patio Doors LLC
Fontana, CAEducational Website
Free assessment
Good Customer Service
Energy-efficient windows and doors
Family-owned and operated
Price Transparency
Lifetime warranty
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Tempered Glass
Glass Doors
Andes windows & doors
Norco, CAOnline portfolio
Free assessment
Price Transparency
Offers window treatments
Spanish-speaking
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Double-Hung
Vinyl Frames
Bay Windows
Concierge Home Remodeling
Tarzana, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Dede Windows and Doors / window replacement
Anaheim, CAAmerican-made vinyl
Price Transparency
Free assessment
Educational website
Good Customer Service
Educational Website
Energy-efficient windows and doors
Services Offered
Custom Window Designs
Glass Doors
Vinyl Frames
Window Replacement/Installation
High Desert Window & Glass
Hesperia, CAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Tempered Glass
Glass Showers
Double-Hung
Window Replacement/Installation
Mirrors
Glass Doors
Mancino Door & Window, Inc.
Glendora, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Golden Age Builders
West Hollywood, CAUnique window options
Price Transparency
Good Customer Service
In-home consultations
3D design and planning tool
Timely Service
Free assessment
Services Offered
Window Replacement/Installation
CGH Solutions - California Green Home Solutions
Van Nuys, CAEducational Website
Good Customer Service
Price Transparency
Services Offered
Energy-Efficient Options
Vinyl Frames
Glass Doors
Window Replacement/Installation
Double-Hung
Ameristar Windows
Riverside, CAFree assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Glass Showers
Energy-Efficient Options
Glass Doors
Vinyl Frames
Energy Core Construction
Anaheim, CAFree assessment
Good Customer Service
Price Transparency
Timely Service
Educational Website
Services Offered
Glass Doors
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
TMC Windows & Doors
Orange, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Best Windows and Doors OC
Anaheim, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Vinyl Frames
Custom Window Designs
Vern's Glass
Victorville, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Screen Repair
Mirrors
Glass Repair
Glass Doors
Window Replacement/Installation
Metal Frames
Custom Glass
Glass Showers
Energy-Efficient Options
Vinyl Frames
Wood Frames
Anytime Windows and Doors
North Hollywood, CAGood Customer Service
Educational Website
Free assessment
Price Transparency
Timely Service
Services Offered
Fiberglass Frames
Energy-Efficient Options
Glass Doors
Metal Frames
Window Replacement/Installation
Vinyl Frames
Double-Hung
San Bernardino Safe Glass Window Replacement INC.
San Bernardino, CAFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Glass Showers
Vinyl Frames
Window Replacement/Installation
Glass Doors
Window Repair
Glass Repair
American Reliable Windows & Doors
Van Nuys, CAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Bay Windows
Double-Hung
Window Replacement/Installation
Home Upgrade Specialist Inc
Los Angeles, CAFinancing options available
Free assessment
Timely Service
Educational Website
Wide range of services
Energy-efficient products
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Calculate how much you can expect to pay for window installation and replacement in Lake Los Angeles, 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 Lake Los Angeles Saves You Money
By upgrading to energy-efficient windows, you can benefit in several ways, including:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
- Save money on energy bills: Upgrading to energy-efficient windows reduces your energy bills by about 12% since you need less energy.
- Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its real estate value.
- Reduce your carbon footprint: In Lake Los Angeles, you can cut your indirect greenhouse gas emissions by about 117 pounds per year once you switch to energy-efficient windows.
Estimated Cost of Window Replacement in Lake Los Angeles
Windows come in all shapes and sizes, so costs and services will differ remarkably. Here are the average costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
Typically, Lake Los Angeles homeowners can anticipate their window installations to range from $250 to $1,200. The most common installations sit at around $600. These numbers vary depending on the specifics of your installation, including number of windows, material, the location of your home, type, size and more.
With windows, efficiency is the most important factor for most homeowners. Efficient windows may cost more upfront, but by increasing the efficiency of your home — particularly if you live in a hot climate — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Lake Los Angeles homeowners $509+ a year after replacing single-pane windows.
The cost of your window installation will also vary depending on the type of material you choose for the frames. Wood windows are usually the most expensive, though it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
The first step of an installation is to decide whether you need a full-frame or pocket installation.
A full-frame installation replaces the total window, such as the windowsill, frame, trim and the window panes. Because this kind of installation is more involved, it will be more expensive than a pocket installation. A pocket installation involves replacing a window within the frame that’s already there. This means instead of tearing out the whole unit and reinstalling it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company can advise you on the best type for your project. In Lake Los Angeles, the decision will mostly be influenced by the efficiency of your home and the condition of your existing frames.
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 Lake Los Angeles
EcoWatch differs from other reviewers, as we examine these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings based on the following methodology:
Service Area
Since this is a guide for Lake Los Angeles, we paid more attention to companies that cover the city. There are other reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Lake Los Angeles.
Work Quality
We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer on this list to make sure its contractors are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to determine the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across most other categories, including quality of parts, warranty, cost, professionalism, quality of installation and more.
Cost
This one is a give-and-take: similar to most services, cheap window companies are not going to provide the highest quality service. Still, we want to ensure we’re highlighting companies that provide 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 that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Lake Los Angeles’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Lake Los Angeles window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Lake Los Angeles, CA Window Replacement FAQs
How much does a window install cost?
The average cost to install a window can range from $450 to $650. There are many factors that affect the cost, such as your property’s location, the materials used in designing the windows, styles and sizes of windows, how energy-efficient the windows are, the number of windows and local labor costs.
What kind of window is the best for energy efficiency?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you’re getting 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. However, if you don’t have the time or skills, we recommend hiring a professional.
What time of year is a good time to replace my windows?
Replacement windows can be installed at any time, but autumn might be the best season. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into the house, so the temperature outside isn’t necessarily a big factor. What’s more important than the temperature is that the weather should be dry.