20 Best Window Companies in San Leandro, CA (2025 Reviews)
Are you thinking of upgrading your windows? Our list of the top window installation companies can help you narrow down which one to choose.
We analyzed all the top-rated window companies in San Leandro 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
A guide on the best window installation companies in San Leandro may not seem like the most riveting article on EcoWatch, but trust us, windows impact your life more than you might think. If you have outdated, drafty windows, your HVAC system could be working overtime to heat or cool your house. This means higher energy bills.
That’s bad for both your bank account and the environment, but one of the best window installation companies can help you with that.
We’ve compiled a guide on the top installation companies to help you in your research, so you can not only benefit from brand-new windows, but also save money on your energy bills.
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 San Leandro
The EcoWatch Reviews team evaluated many window installation companies across San Leandro to narrow our list down to the top ones. We assessed the providers based on energy-efficient offerings, price, local experience, coverage area, customer service 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 provides windows expertise in San Leandro. Window World has been in the window installation business for about 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 appeals to eco-conscious consumers by providing 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 San Leandro?Prices are not available on Window World’s website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can receive a 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 provides the best local installation in San Leandro. Milgard has been in the window installation business for about 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 appeals to eco-conscious consumers by providing 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 San Leandro?Prices are not available on Milgard’s website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, it offers different kinds of windows at varying price points. For more accurate information on pricing, you can receive a 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 provides the best availability in San Leandro. Andersen has been in the window installation business for about 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 appeals to eco-conscious consumers by providing 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 San Leandro?Prices are not available on Andersen’s website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on pricing, you can receive a quote from the company.
We’ve recommended companies with shining reputations, but keep in mind some national companies have independently owned locations in San Leandro, so your service may vary depending on your local crew. We have tried to be unbiased and transparent by mentioning pros and cons for every company we reviewed.
More Window Companies in San Leandro
Renewal by Andersen of San Francisco
Hayward, CAFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Skylights
Double-Hung
Bay Windows
Glass Doors
Mr Window Replacement
Fremont, CAFree assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Vinyl Frames
Bay Windows
Cal Coast Window & Door
Pleasanton, CAFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Bay Windows
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
Quality Windows & Doors
Pleasanton, CAEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Golden Heights Remodeling INC
Concord, CAFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Bay Windows
Window Replacement/Installation
GENERAL B CONTRACTOR
San Jose, CAEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Santa Rosa Window Tint
Santa Rosa, CAGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Alexander Company
Burlingame, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Bay Windows
Skylights
Glass Doors
Window Repair
Window Replacement/Installation
Window Factory
Greenbrae, CAGood Customer Service
Educational Website
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Vinyl Frames
Fiberglass Frames
Bay Windows
Metal Frames
Wood Frames
Bay Builders and Remodeling Inc.
San Jose, CAEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Bay Windows
Window Replacement/Installation
Sivan Windows and Doors - San Jose Window and Door Replacement Company
San Jose, CAPrice Transparency
Educational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
American Window Specialist
Campbell, CAFree assessment
Services Offered
Vinyl Frames
Bay Windows
Glass Doors
Window Replacement/Installation
Window Repair
Double-Hung
The Glass Guru
Fairfield, CAGood Customer Service
Educational Website
Free assessment
Services Offered
Tempered Glass
Energy-Efficient Options
Glass Showers
Metal Frames
Window Repair
Glass Doors
Storm/Impact Windows
Custom Glass
Screen Repair
Mirrors
Skylights
Fiberglass Frames
Glass Repair
Window Replacement/Installation
Triple Pane Glass
Wood Frames
Vinyl Frames
Northwest Exteriors
Santa Rosa, CAPrice Transparency
Timely Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Vinyl Frames
R & M Quality Windows & Doors
Newark, CATimely Service
Educational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Bay Windows
Window Replacement/Installation
Glass Doors
Custom Exteriors, Inc
Pleasanton, CAFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Custom Window Designs
Energy-Efficient Options
Bay Windows
Glass Doors
Window Replacement/Installation
Integrity Windows & Doors
San Jose, CAGood Customer Service
Price Transparency
Services Offered
Wood Frames
Window Replacement/Installation
Glass Doors
Vinyl Frames
Fiberglass Frames
Bay Windows
Metal Frames
B & L Glass
Santa Rosa, CATimely Service
Educational Website
Services Offered
Mirrors
Energy-Efficient Options
Glass Showers
Skylights
Window Replacement/Installation
Glass Repair
Glass Doors
Custom Glass
East County Glass & Window, Inc.
Pittsburg, CAEducational Website
Services Offered
Bay Windows
Mirrors
Glass Showers
Window Replacement/Installation
Glass Doors
American Vision Windows
Santa Clara, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Double-Hung
Wood Frames
Glass Doors
Window Replacement/Installation
Vinyl Frames
Energy-Efficient Options
Fiberglass Frames
Calculate how much you can expect to pay for window installation and replacement in San Leandro, 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 San Leandro Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on energy bills. Here are more ways upgrading your windows could benefit you:
- Protect your investment: When you have an older home, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its value.
- Decrease your carbon footprint: By using less energy after you switch to energy-efficient windows, you’ll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.
- Save money on power bills: Because energy-efficient windows lower how much energy you need to heat or cool your home, they can help you save around $531 annually on your energy bills in San Leandro.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in San Leandro
When researching window installation, each company offers varying services and prices. Let’s look at some typical costs and services.
How Much Do New Windows Cost?
On average, San Leandro homeowners can expect their window replacements to range from $250 to $1,200. The average cost sits at around $600. But costs will differ considerably depending on the current condition of your home, your location, the quality of your products and the number of windows you need. A lot of window companies also offer door installations and other add-ons like baths, shutters, coating and more. These extra services will increase overall project costs.
It’s also worth noting that energy-efficient windows will cost more initially, but Energy Star predicts that switching out the windows on your San Leandro home can mean an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. The amount of money you’ll save by switching to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Costs will also vary depending on the material of your frame. Aluminum frames cost the least. They’re sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made using wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They’re also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
The first question to ask yourself when considering a window replacement is: Do you want a full-frame installation or a pocket installation?
A full-frame installation replaces the total window, such as the windowsill, frame, trim and the window panes. As this type of installation requires more time, it will cost more than a pocket installation. 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 unsure which kind of window installation service you need, your installer should be able to help you out. Generally, the choice is influenced by factors such as the age and condition of the home, the type of building material, budget and time restrictions.
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 San Leandro
EcoWatch reviews differ from most reviews, as we look at these companies through a sustainability lens. Along with energy efficiency, we evaluated window companies all across the state and ranked them based on the following methodology:
Service Area
Because this is a guide for San Leandro, we only included companies that serve the city. There are certainly other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in San Leandro.
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 on this list to ensure its technicians are well-qualified and that the company has gotten lots of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If the majority of customers don’t have good feedback about their service from a certain installer, it won’t be featured on EcoWatch.
Cost
This one is a give-and-take: as with most services, cheap window installers won’t always provide the highest quality service. Still, we want to make sure we’re highlighting companies that provide a range of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed, windows are a sizable investment, so you’ll want to make sure that investment is well protected. Window installation companies that give you 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 good track record in the industry. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
San Leandro, CA Window Replacement FAQs
How much should a window install cost?
The typical cost of installing a single window ranges from $450 to $650. There are many factors that affect how much it costs, which include styles and sizes of windows, local labor costs, the materials used in designing the windows, how energy-efficient the windows are, the number of windows and your property’s location.
Which type of window is the best?
A window’s energy efficiency depends on a variety of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
Can you install your own windows?
If you’re handy and have experience with installing a replacement window, you may be able to install your own windows. However, if you don’t have the time or experience, we don’t recommend doing it on your own.
Should I replace all my windows at the same time?
If you’re upgrading your windows to get more efficient windows, replacing all your windows together is the only way to gain that benefit. On the other hand, if you have just a few windows that are broken or drafty, you can replace just those.