20 Best Window Companies in Tamalpais-Homestead Valley, CA (2025 Reviews)
If you’re thinking about getting new windows, our list of the best window installation companies can help.
We analyzed all the top-rated window companies in Tamalpais-Homestead Valley 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 vital role in conserving energy in your home. Traditional or damaged windows can cost you in energy bills. In fact, the Department of Energy estimates that 25-30% of your house’s heat or cool air could be lost through your windows.
That’s also bad for the environment, as the additional energy required by damaged windows increases your carbon footprint.
Unlike other sites, EcoWatch ranks window replacement companies based on energy efficiency while also factoring in 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 Tamalpais-Homestead Valley
The EcoWatch team assessed several installers in Tamalpais-Homestead Valley to find the best ones for our readers. The providers we’ve mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service 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 has windows expertise in Tamalpais-Homestead Valley. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window industry for about 27 years.
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 perfect company for you.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so be sure to ask your Window World representative when inquiring about services.
How much does Window World cost in Tamalpais-Homestead Valley?Prices are not available on Window World’s website because the cost of window installment 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 ask for 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 has the best local installation in Tamalpais-Homestead Valley. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has been in the window industry for about 60 years.
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 perfect company for you.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so be sure to ask your Milgard representative when inquiring about services.
How much does Milgard Windows & Doors cost in Tamalpais-Homestead Valley?Prices are not available on Milgard’s website because the cost of window installment 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 ask for 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 has the best availability in Tamalpais-Homestead Valley. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window industry for about 27 years.
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 perfect company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so be sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Tamalpais-Homestead Valley?Prices are not available on Andersen’s website because the cost of window installment 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 ask for a quote from the company.
One thing to note is that the companies in this section are national, which means the quality of the service may depend on your local crew. We have tried to stay unbiased and transparent by listing pros and cons for every provider.
More Window Companies in Tamalpais-Homestead Valley
Renewal by Andersen of San Francisco
Hayward, CAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Bay Windows
Skylights
Double-Hung
Window Replacement/Installation
Glass Doors
Golden Heights Remodeling INC
Concord, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Bay Windows
Window Replacement/Installation
Mr Window Replacement
Fremont, CAGood Customer Service
Free assessment
Services Offered
Bay Windows
Window Replacement/Installation
Vinyl Frames
Santa Rosa Window Tint
Santa Rosa, CAGood Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Cal Coast Window & Door
Pleasanton, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Glass Doors
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
Quality Windows & Doors
Pleasanton, CAEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
GENERAL B CONTRACTOR
San Jose, CAEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Window Factory
Greenbrae, CAFree assessment
Good Customer Service
Educational Website
Services Offered
Vinyl Frames
Metal Frames
Wood Frames
Bay Windows
Fiberglass Frames
Glass Doors
Window Replacement/Installation
Alexander Company
Burlingame, CAPrice Transparency
Good Customer Service
Free assessment
Services Offered
Window Repair
Window Replacement/Installation
Bay Windows
Skylights
Glass Doors
The Glass Guru
Fairfield, CAFree assessment
Good Customer Service
Educational Website
Services Offered
Glass Doors
Triple Pane Glass
Wood Frames
Custom Glass
Storm/Impact Windows
Tempered Glass
Skylights
Screen Repair
Vinyl Frames
Mirrors
Metal Frames
Window Repair
Glass Showers
Window Replacement/Installation
Glass Repair
Energy-Efficient Options
Fiberglass Frames
Northwest Exteriors
Santa Rosa, CAPrice Transparency
Free assessment
Educational Website
Timely Service
Services Offered
Window Replacement/Installation
Vinyl Frames
Bay Builders and Remodeling Inc.
San Jose, CAEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Bay Windows
Window Replacement/Installation
Sivan Windows and Doors - San Jose Window and Door Replacement Company
San Jose, CAFree assessment
Price Transparency
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
American Window Specialist
Campbell, CAFree assessment
Services Offered
Glass Doors
Double-Hung
Vinyl Frames
Window Repair
Window Replacement/Installation
Bay Windows
R & M Quality Windows & Doors
Newark, CATimely Service
Educational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Bay Windows
Custom Exteriors, Inc
Pleasanton, CAFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Custom Window Designs
Bay Windows
Window Replacement/Installation
Glass Doors
Energy-Efficient Options
B & L Glass
Santa Rosa, CATimely Service
Educational Website
Services Offered
Energy-Efficient Options
Glass Showers
Glass Repair
Window Replacement/Installation
Skylights
Custom Glass
Glass Doors
Mirrors
Integrity Windows & Doors
San Jose, CAPrice Transparency
Good Customer Service
Services Offered
Metal Frames
Window Replacement/Installation
Bay Windows
Vinyl Frames
Wood Frames
Glass Doors
Fiberglass Frames
American Window Systems, Inc.
Napa, CAFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Skylights
Window Replacement/Installation
East County Glass & Window, Inc.
Pittsburg, CAEducational Website
Services Offered
Glass Showers
Bay Windows
Mirrors
Glass Doors
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Tamalpais-Homestead Valley, 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 Tamalpais-Homestead Valley Saves You Money
There are quite a few perks of upgrading to energy-efficient windows. A few reasons you may want to consider making the change include the following:
- Save money on energy bills: The Department of Energy estimates that heat gained or lost via windows makes up around 25-30% of residential energy use. Installing energy-efficient windows can help decrease that amount, which helps you save some money on your bills.
- Protect your investment: When you have an older home, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its real estate value.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
- Reduce your carbon footprint: By using less energy once switching to Energy Star certified windows, you’ll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Tamalpais-Homestead Valley
When researching window installation, each company provides varying services and prices. Let’s take a look at some typical costs and services.
How Much Do New Windows Cost?
According to our market research, the average cost to install a single window is about $600. However, window installation costs can range from $200 to $1,200 per window. These estimates vary based on specific characteristics of your installation, such as the location of your home, type, material, number of windows, size and more.
It’s also worth keeping in mind that energy-efficient windows will cost more upfront, but Energy Star estimates that switching out the windows on your Tamalpais-Homestead Valley 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.
How much your window installation costs will also vary based on the type of window material you choose for the frames. Wood windows are typically the most expensive, though it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
In general, there are two kinds of window installation services you can get: full-frame and pocket installations.
Full-frame installations entail replacing the full window, including the trim, frame and sill. You most likely need a full-frame installation when you want a new style or your window has significant damage. These installations are more involved and will increase overall costs. A pocket installation entails installing a new window within the old frame. So, instead of tearing out the whole window and reinstalling it, the installer will just put the replacement window (also called a retrofit or insert window) into the frame.
If you’re still trying to decide which type of installation you need, you can consult with your installer and get their recommendation. The choice mostly depends on 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
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 Tamalpais-Homestead Valley
In our search to find the most reliable, eco-friendly window installers in Tamalpais-Homestead Valley, the EcoWatch Reviews team chose the above companies as the top window installation companies in the city. We’ve reviewed the top window installation companies in Tamalpais-Homestead Valley mainly based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for Tamalpais-Homestead Valley, we gave more points to companies that cover the city. There are certainly reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Tamalpais-Homestead Valley.
Work Quality
When it comes to new windows, the quality and breadth of services can often play just as important of a role in overall efficiency and performance as the type of window you choose. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including quality of parts, quality of installation, cost, warranty, professionalism 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 the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important to many homeowners. That’s why window installation companies that have 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 installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Tamalpais-Homestead Valley, CA Window Replacement FAQs
How much does window installation cost?
The national average cost to install a single window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is generally influenced by the location of your property, the size of the window and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What are the kinds of windows?
There are several different types of windows you can get for your home, including double-hung and single-hung windows, awning windows, slider windows, bay windows, transom windows, picture windows and casement windows.
What services do window replacement companies offer?
Window installation companies will do the entire process — from replacing old windows with new ones to cleaning up after the windows have been put in place. Additionally, some companies offer window manufacturing, customization and repairs.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but warmer weather is typically better. 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 the home, so the temperature outside doesn’t necessarily matter that much. Most importantly, the weather should be dry.
Should I replace all my windows at the same time?
If your windows are more than 20 years old, it’s most likely time to replace all of them. By that point, they are typically less efficient, draftier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less stress.