20 Best Window Companies in Lomita, CA (2025 Reviews)
Thinking about replacing your windows? We’ve got all the information you need in this list of the best window installation companies.
We analyzed all the top-rated window companies in Lomita 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 renewable energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home’s efficiency can also have a considerable impact on home energy conservation. During the hot summer months, the last thing you want is your cool air to leak out of your drafty windows.
That’s also bad news for the environment, as the extra energy used by outdated windows increases your carbon footprint.
So if you’re building a new home, renovating or changing out old windows in Lomita, this is the best place to get started.
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 Lomita
The EcoWatch Reviews team examined several window providers in Lomita to find the best ones for our readers. The installers in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise and beyond.

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 operating since 1995 and currently services 200 locations nationwide. Many positive reviews on customer review websites back the company's reputation.
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, Window World may be the provider for you.
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 windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Window World cost in Lomita?Window World does not list prices on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate information 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 is a family-owned and -operated window replacement company, which primarily serves the West Coast. This window installation company has been operating since 1962 and currently services Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Many positive reviews on customer review websites back the company's reputation.
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, Milgard may be the provider for you.
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 windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Milgard Windows & Doors cost in Lomita?Milgard does not list prices on its website, but it offers different kinds of windows at varying price points. The best way to get more accurate information 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been operating since 1995 and currently services nearly every state except Mississippi and West Virginia. Many positive reviews on customer review websites back the company's reputation.
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, Andersen may be the provider for you.
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 windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Lomita?Andersen does not list prices 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 get more accurate information is to request a free quote from the company.
We try to stay unbiased and transparent by mentioning pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Lomita
Renewal by Andersen of Orange County
Laguna Hills, CAEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Double-Hung
Bay Windows
Window Replacement/Installation
Glass Doors
Smart Window Company
Torrance, CAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Tempered Glass
Glass Doors
Double-Hung
Window Replacement/Installation
Vinyl Frames
Energy-Efficient Options
Discount Window And Door
Redondo Beach, CAPrice Transparency
Free assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Skylights
Metal Frames
Glass Doors
Vinyl Frames
Harbor Construction
Huntington Beach, CATimely Service
Free assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Glass Doors
Energy-Efficient Options
Bay Windows
Double-Hung
Vinyl Frames
Window Replacement/Installation
California Window & Solar
Costa Mesa, CAGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Glass Doors
Metal Frames
Vinyl Frames
Energy-Efficient Options
Window Replacement/Installation
Hometime Windows & Doors
Santa Ana, CAPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
Dede Windows and Doors / window replacement
Anaheim, CAEducational Website
Educational website
Price Transparency
Free assessment
Energy-efficient windows and doors
American-made vinyl
Good Customer Service
Services Offered
Custom Window Designs
Vinyl Frames
Window Replacement/Installation
Glass Doors
Concierge Home Remodeling
Tarzana, CAEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
SoCal Window Pros
San Dimas, CAGood Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Mancino Door & Window, Inc.
Laguna Niguel, CAEducational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Save-On Glass & Screen
Westminster, CATimely Service
Free assessment
Good Customer Service
Services Offered
Glass Showers
Window Replacement/Installation
Mirrors
Window Repair
Glass Doors
Window King
Huntington Beach, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Vinyl Frames
Double-Hung
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Golden Age Builders
West Hollywood, CAPrice Transparency
Unique window options
In-home consultations
Good Customer Service
Timely Service
Free assessment
3D design and planning tool
Services Offered
Window Replacement/Installation
Best Windows and Doors OC
Anaheim, CAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Vinyl Frames
Glass Doors
Window Replacement/Installation
Custom Window Designs
TMC Windows & Doors
Orange, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Can-Do Windows & Doors
Santa Ana, CAFree assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Double-Hung
Glass Doors
Wood Frames
Metal Frames
Vinyl Frames
Fiberglass Frames
Energy-Efficient Options
Energy Core Construction
Anaheim, CATimely Service
Educational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Bay Windows
CGH Solutions - California Green Home Solutions
Van Nuys, CAPrice Transparency
Good Customer Service
Educational Website
Services Offered
Double-Hung
Glass Doors
Window Replacement/Installation
Vinyl Frames
Energy-Efficient Options
Home Upgrade Specialist Inc
Los Angeles, CAEnergy-efficient products
Price Transparency
Wide range of services
Timely Service
Good Customer Service
Educational Website
Free assessment
Financing options available
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Golden Glass
Fullerton, CAGood Customer Service
Timely Service
Free assessment
Educational Website
Price Transparency
Services Offered
Glass Repair
Custom Glass
Window Replacement/Installation
Mirrors
Tempered Glass
Glass Showers
Glass Doors
Calculate how much you can expect to pay for window installation and replacement in Lomita, 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 Lomita Saves You Money
Switching to energy-efficient windows can help improve the comfort of your home and help you save on power bills. Here are more details about how upgrading your windows could help you:
- Decrease your carbon footprint: By using less energy after switching to energy-efficient windows, you’ll also be decreasing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Save on electricity bills: Switching to energy-efficient windows lowers your energy bills by about 12% since you need less energy.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can make your home more comfortable and also help increase the value of your property if you decide to sell.
Estimated Cost of Window Replacement in Lomita
Windows come in different shapes and sizes, so costs and services will vary considerably. Here are the average costs and services that you’ll find from window installation companies.
How Much Do New Windows Cost?
The typical cost to install a single window is about $600 but can range from $200 to $1,200. These amounts vary depending on specific characteristics of your installation, such as material, type, number of windows, the location of your home, size and more.
Bear in mind that energy-efficient windows may cost more upfront, but Energy Star predicts the upgrade will save you between $101 and $583 a year when you replace single-pane windows and between $27 and $197 a year when you replace double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.
We recommend requesting free quotes from multiple window installers to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
The first step of a window installation is to think about whether you want a full-frame or pocket installation.
A full-frame installation replaces the entire window, such as the sill, frame, trim and the window panes. Because this type of installation is more involved, it will be more expensive than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the old frame. Pocket installations are simpler and won’t carry as large a bill, but you can’t do this type of installment if you have any pre-existing rot or water damage.
If you’re still debating which type of installation you should get, you can talk to your provider and get their recommendation. The choice mostly depends on the age of your window frames and if there’s any damage.
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 Lomita
The EcoWatch Reviews team differs from most reviewers because we’re examining these companies through a sustainability lens. We’ve reviewed the best window installation companies in Lomita mostly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
Because this is a guide for Lomita, we gave more points to companies that serve the city. There are certainly reputable providers that didn’t make our list because they wouldn’t be able to serve homeowners in Lomita.
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 contractors are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across most other categories, including quality of parts, cost, warranty, quality of installation, professionalism 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. 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
Protecting your investment in new windows is important. For that reason, window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for a while. 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.
Lomita, CA Window Replacement FAQs
What is the average cost to replace windows?
The national average cost to replace one window is about $600 but can range from $200 to $1,200, based on a few different factors. The price is often dependent on the type and material of the window, the location of your property and the size of the window. Also, bear in mind that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What kind of window is the best for energy efficiency?
Generally, double-pane windows are more efficient than single-pane windows and windows that don’t open will be more efficient than windows that do. If you want to be sure you’ll get the most energy-efficient windows, look for models with the blue Energy Star certification — that means they’re certified energy-efficient by the U.S. Department of Energy.
What services do window installation companies provide?
Window installers travel to your property to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others install their own windows. The installer will also clean up after the installation is finished.
When is the best time of year to replace 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 make sure that too much hot or cold air doesn’t get into your home, so the temperature outside doesn’t necessarily matter that much. Most importantly, the weather should be dry.
How often should you replace windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Other than that, if your windows have any damage on them, or they have become difficult to operate, they may be in need of replacement.