20 Best Window Companies in Los Alamitos, CA (2025 Reviews)
Thinking about upgrading your home's windows? We’ve got you covered in this guide to the top window installation companies.
We analyzed all the top-rated window companies in Los Alamitos 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 windows that need repairs, windows play an important role in conserving energy in your home. When it’s the middle of summer, your old and drafty windows could be making your home harder to cool and more uncomfortable for you.
Fortunately, saving you money with more efficient windows also aligns with our goals of reducing energy usage for the environment.
Because windows have such a large impact on your home, choosing the best company for you is a big decision to make. That’s why the EcoWatch team has made this list of the best window replacement companies, so you can make an informed decision more easily.
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 Los Alamitos
The EcoWatch Reviews team researched dozens of companies that serve the Los Alamitos area to find the top window installation companies by our standards. The installers we’ve included in this article scored best in our categories: energy-efficient offerings, price, customer service, 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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window replacement business.
You may want to consider opting for Window World if you're interested in 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’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 Los Alamitos?While pricing is not available on Window World’s website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate pricing information.

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. Milgard has around 60 years of experience in the window replacement business.
You may want to consider opting for Milgard if you're interested in 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’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 Los Alamitos?While pricing is not available on Milgard’s website, it offers different kinds of windows at varying price points. Requesting a free quote on its website is the best way to get more accurate pricing information.

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. Andersen has around 27 years of experience in the window replacement business.
You may want to consider opting for Andersen if you're interested in 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’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 Los Alamitos?While pricing is 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. Requesting a free quote on its website is the best way to get more accurate pricing information.
Please note that the companies in this section are national, which means the quality of customer service may vary depending on your local crew. We have tried to remain unbiased and transparent by listing both pros and cons for every provider.
More Window Companies in Los Alamitos
Renewal by Andersen of Orange County
Laguna Hills, CAFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Double-Hung
Glass Doors
Bay Windows
Window Replacement/Installation
Harbor Construction
Huntington Beach, CAPrice Transparency
Educational Website
Free assessment
Timely Service
Good Customer Service
Services Offered
Energy-Efficient Options
Double-Hung
Vinyl Frames
Bay Windows
Glass Doors
Window Replacement/Installation
Hometime Windows & Doors
Santa Ana, CAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Dede Windows and Doors / window replacement
Anaheim, CAEducational Website
Free assessment
American-made vinyl
Good Customer Service
Educational website
Price Transparency
Energy-efficient windows and doors
Services Offered
Window Replacement/Installation
Custom Window Designs
Vinyl Frames
Glass Doors
California Window & Solar
Costa Mesa, CAPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Vinyl Frames
Metal Frames
Energy-Efficient Options
Glass Doors
Smart Window Company
Torrance, CAGood Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Tempered Glass
Glass Doors
Energy-Efficient Options
Double-Hung
Vinyl Frames
Discount Window And Door
Redondo Beach, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Glass Doors
Vinyl Frames
Energy-Efficient Options
Metal Frames
Skylights
Window Replacement/Installation
SoCal Window Pros
San Dimas, CAEducational Website
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Mancino Door & Window, Inc.
Laguna Niguel, CAEducational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Andes windows & doors
Norco, CAFree assessment
Offers window treatments
Good Customer Service
Spanish-speaking
Price Transparency
Online portfolio
Educational Website
Services Offered
Double-Hung
Vinyl Frames
Glass Doors
Window Replacement/Installation
Bay Windows
Concierge Home Remodeling
Tarzana, CAPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
United Builders Windows & Doors
Rancho Cucamonga, CAGood Customer Service
Timely Service
Educational Website
Free assessment
Price Transparency
Services Offered
Energy-Efficient Options
Double-Hung
Bay Windows
Glass Doors
Window Replacement/Installation
Save-On Glass & Screen
Westminster, CATimely Service
Free assessment
Good Customer Service
Services Offered
Glass Doors
Glass Showers
Window Repair
Window Replacement/Installation
Mirrors
Window King
Huntington Beach, CAEducational Website
Free assessment
Price Transparency
Services Offered
Double-Hung
Vinyl Frames
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
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
TMC Windows & Doors
Orange, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Can-Do Windows & Doors
Santa Ana, CAEducational Website
Price Transparency
Free assessment
Services Offered
Metal Frames
Vinyl Frames
Energy-Efficient Options
Double-Hung
Fiberglass Frames
Window Replacement/Installation
Wood Frames
Glass Doors
Energy Core Construction
Anaheim, CAPrice Transparency
Free assessment
Good Customer Service
Timely Service
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Bay Windows
Glass Doors
Golden Age Builders
West Hollywood, CAGood Customer Service
Unique window options
3D design and planning tool
Price Transparency
Timely Service
In-home consultations
Free assessment
Services Offered
Window Replacement/Installation
CGH Solutions - California Green Home Solutions
Van Nuys, CAEducational Website
Good Customer Service
Price Transparency
Services Offered
Double-Hung
Window Replacement/Installation
Vinyl Frames
Glass Doors
Energy-Efficient Options
Calculate how much you can expect to pay for window installation and replacement in Los Alamitos, 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 Los Alamitos Saves You Money
When you upgrade to energy-efficient windows, you may see a few perks, including:
- Save money on electricity bills: After you install energy-efficient windows, you can expect a reduction in your bills by about 12% since you’ll need less energy to heat or cool your house.
- Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
- Protect your investment: If you have an older home, your windows are most likely in need of replacement. Updating your windows can improve the insulation in your home and also help increase the value of your property if you decide to sell.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% after you install Energy Star certified windows. In Los Alamitos, that’s about 117 pounds per year on average.
Estimated Cost of Window Replacement in Los Alamitos
When looking into window installation, each company provides varying services and prices. Let’s look at some average costs and services.
How Much Do New Windows Cost?
Typically, Los Alamitos homeowners can expect their window installations to range from $250 to $1,200. The average cost sits at approximately $600. 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 installers also offer door installations and replacements, which will make your project cost 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 per year when you replace double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.
How much your window installation costs will also vary depending on the type of window material you choose for the frames. Wood windows are typically the most expensive, although 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?
There are typically two kinds of window installation services: full-frame and pocket installations.
A full-frame installation is a total window replacement. This service involves taking out the old window, the windowsill, and the exterior and interior trim. It can also involve other materials, such as insulation and drip edges, which increase the total cost of the project. It’s also worth noting that you may have to touch up the paint around the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window within its existing 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 consult with your provider and get their advice. The decision mostly depends on how old the frames are 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 Los Alamitos
The EcoWatch Reviews team differs from most reviewers, as we examine these companies through a sustainability lens. We have decided to evaluate the top window installers in Los Alamitos primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows have been shown to lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
Because this is a guide for Los Alamitos, we only included companies that provide services to the city. There are other reputable providers that didn’t make our list because they wouldn’t be able to serve homeowners in Los Alamitos.
Work Quality
When it comes to new windows, the quality and range of services often plays 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 consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have good feedback about their service from a certain company, you won’t see it featured on EcoWatch.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed, windows are a sizable investment, so you’ll want to make sure that investment is protected. 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 a proven track record in the industry. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Los Alamitos, CA Window Replacement FAQs
How much should a window install cost?
The national average cost of replacing one window is around $600 but can range between $200 and $1,200, depending on a variety of factors. The price is generally influenced by the size of the window, the location of your property and the type and material 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.
Which type of window should I get?
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’ll have the most energy-efficient windows, look for models with the blue Energy Star certification — this means they’re certified energy-efficient by the U.S. Department of Energy.
When should I use a window installation company?
You should use a window installation professional whenever you want to upgrade your windows. Installing windows is a complicated process that can take a lot of time, so it’s best handled by the professionals.
How long does window installation take?
Each window takes about 30 minutes to install depending on the type of window. However, the window installation can be a two-day job — or more — if you have a lot of windows that have to be installed.