20 Best Window Companies in California, MD (2025 Reviews)
Looking to improve your house’s energy efficiency? The top window replacement companies can help.
We analyzed all the top-rated window companies in California 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 California homeowners find eco-conscious solutions for their homes. Potential leaks or drafts from your windows can make your home uncomfortable in the summer or winter.
Installing energy-efficient windows on your property can help you save money each month on your electricity bills — and you can help the environment as well.
So if you’re constructing a new home, renovating or updating your windows in California, this guide 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
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in California
The EcoWatch team assessed many window installation companies across California to narrow our list down to the top ones. We assessed the companies based on their energy-efficient offerings, price, local experience, customer service, coverage area 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 California. It's 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 installation sector.
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 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 make sure you mention that you’d like Energy Star windows when inquiring.
How much does Window World cost in California?Prices aren’t mentioned on Window World’s website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can inquire about a quote on the company’s website.

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 California. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window installation sector.
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 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 make sure you mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in California?Prices aren’t mentioned on Andersen’s website, but 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 inquire about a quote on the company’s website.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows offers the best window installation for businesses in California. It's an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has around 23 years of experience in the window installation sector.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more. Not all of Aeroseal’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Aeroseal Windows cost in California?Prices aren’t mentioned on Aeroseal’s website, but it provides high-quality windows at a competitive price point. If you’d like more accurate information, you can inquire about a quote on the company’s website.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation offers the best residential windows in California. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has around 16 years of experience in the window installation sector.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsEach product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation. Not all of Window Nation’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Window Nation cost in California?Prices aren’t mentioned on Window Nation’s website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. If you’d like more accurate information, you can inquire about a quote on the company’s website.
We’ve recommended installers with shining reputations, but note that some national companies have independently owned locations in California, so your service may depend on your local crew. We have tried to remain unbiased and transparent by describing pros and cons for every company reviewed.
More Window Companies in California
Renewal by Andersen of the Capital Region
Jessup, MDEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Bay Windows
Glass Doors
Window Replacement/Installation
Double-Hung
Skylights
Window Nation
Glen Burnie, MDPrice Transparency
Educational Website
Free assessment
Services Offered
Custom Window Designs
Triple Pane Glass
Vinyl Frames
Glass Doors
Bay Windows
Double-Hung
Wood Frames
Energy-Efficient Options
Window Replacement/Installation
Bay Area Exteriors
Easton, MDTimely Service
Educational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Bay Windows
Anderson Glass Contractors - Frameless Shower Door, Glass Door in Alexandria VA
Marlow Heights, MD24-hour emergency availability
Free assessment
Price Transparency
Custom glass services
Free in-person consultation
Good Customer Service
Educational Website
Services Offered
Glass Doors
Custom Glass
Glass Repair
Window Replacement/Installation
Mirrors
Glass Showers
American Remodel
Annapolis, MDPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Advanced Window & Glass Repair, LLC
Woodbridge, VAFree assessment
Educational Website
Good Customer Service
Timely Service
Price Transparency
Services Offered
Vinyl Frames
Glass Repair
Energy-Efficient Options
Window Repair
Glass Showers
Fiberglass Frames
Custom Glass
Window Replacement/Installation
Mirrors
Double-Hung
Tempered Glass
Bay Windows
Glass Doors
Old Town Glass & Window Repair
Alexandria, VALarge online project gallery
Affordable prices
Price Transparency
Free assessment
Good Customer Service
Third-generation glassier
Services Offered
Glass Doors
Custom Glass
Glass Repair
Mirrors
Window Replacement/Installation
Glass Showers
DISTRICT CAPITOL GLASS LLC
Alexandria, VAFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Glass Doors
Mirrors
Glass Repair
Glass Showers
Window Repair
Window Replacement/Installation
Screen Repair
Capitol Improvements - Roofing & Siding Contractor
Bowie, MDPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MDFree assessment
Educational Website
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Tri County Windows and Siding
Vienna, VAGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Skylights
Glass Doors
Window Replacement/Installation
Bay Windows
Double-Hung
Custom Window Designs
Potomac Windows & Doors
Fredericksburg, VAPrice Transparency
Services Offered
Window Replacement/Installation
Home Exteriors LLC.
Manassas, VAPrice Transparency
Educational Website
Free assessment
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Glass Doors
Bright Side Exteriors
Centreville, VAFree assessment
Services Offered
Window Repair
Window Replacement/Installation
Glass Doors
Park Place Construction
Huntingtown, MDPrice Transparency
Timely Service
Good Customer Service
Educational Website
Free assessment
Services Offered
Skylights
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Window Depot USA of Annapolis
Chesapeake Beach, MDEducational Website
Timely Service
Good Customer Service
Price Transparency
Free assessment
Services Offered
Storm/Impact Windows
Vinyl Frames
Window Replacement/Installation
Double-Hung
Triple Pane Glass
Bay Windows
Energy-Efficient Options
Glass Doors
Platinum Home Design, LLC
La Plata, MDEducational Website
Timely Service
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Window World of Southern Maryland
Waldorf, MDFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Vinyl Frames
Bay Windows
Window Replacement/Installation
Double-Hung
Glass Doors
Metric Windows Shower Doors and Glass Repair
Alexandria, VAPrice Transparency
Good Customer Service
Free assessment
Timely Service
Educational Website
Services Offered
Tempered Glass
Glass Repair
Glass Showers
Glass Doors
Window Repair
Mirrors
Window Replacement/Installation
Metal Frames
Potomac Glass Pro
Woodbridge, VAFree assessment
Good Customer Service
Services Offered
Double-Hung
Tempered Glass
Custom Glass
Window Repair
Mirrors
Glass Doors
Window Replacement/Installation
Glass Repair
Energy-Efficient Options
Skylights
Glass Showers
Calculate how much you can expect to pay for window installation and replacement in California, MD 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 California Saves You Money
Upgrading to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here are more details about how upgrading your windows could benefit you:
- Reduce your carbon footprint: By using less energy once switching to Energy Star certified windows, you’ll also be cutting your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
- Protect your investment: If you have a relatively old home, your windows are most likely in need of replacement. Upgrading your windows can make your home more comfortable and also help increase the value of your house if you decide to sell.
- Save money on electricity bills: Because energy-efficient windows reduce the amount of energy used to heat or cool your home, the switch can help you save about $232 annually on your energy bills in California.
Estimated Cost of Window Replacement in California
Windows come in different shapes and sizes, so costs and services will differ remarkably. Here are the average costs and services that you can find from the average window installation company.
How Much Do New Windows Cost?
Typically, homeowners in California can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. This is due to the fact that window installations depend on several factors specific to your home, like the size, material and number of windows you need to install, as well as the location of your property.
It’s also worth noting that energy-efficient windows will almost always cost more initially, but Energy Star predicts that upgrading the windows on your California home can mean an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. How much you’ll save by switching to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
We advise requesting free quotes from multiple window installation companies to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
The first step when planning a replacement is to clarify whether you want a full-frame or pocket installation.
Full-frame installations are usually done when you want a new style or your window has a lot of rot. With this service, your professionals will replace the complete window, including the frame, sill and trim. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are simpler and won’t cost as much, 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 need, you can consult with your provider and get their recommendation. The choice mostly is influenced by how old the frames are and if there’s any damage present.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in California
EcoWatch reviews differ from most reviews because we’re examining these companies through a sustainability lens. We’ve assessed the top window replacement companies in California mostly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows can 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 California, we only included companies that serve the city. There are other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in California.
Work Quality
When picking new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the type of window you get. 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
We analyzed patterns in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it reflects the quality of services across nearly every category, including quality of installation, warranty, professionalism, cost, quality of parts and more.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers try to keep costs as low as possible. When analyzing providers’ prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
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
Because of California’s climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of California window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
California, MD Window Replacement FAQs
How much does a window install cost?
The average cost to install a single window can range between $450 and $650. There are a variety of factors that influence the cost, including the number of windows, the materials used in designing the windows, how energy-efficient the windows are, local labor costs, your property’s location and styles and sizes of windows.
What are the most common types of replacement windows?
The most common kinds of windows for homes are transom windows, awning windows, casement windows, double-hung and single-hung windows, slider windows, bay windows and picture windows.
When should I use a window installation company?
Unless you have experience with home improvement projects and have the tools needed to replace your own windows, we recommend hiring a professional installer. The window installation process is complicated and can take anywhere from four to six hours for a single window. Although it’s tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and much safer alternative.
How long does window installation take?
Since the average installation time of a window is 30 minutes, around 16 windows can be installed in a typical 8-hour work day.