20 Best Window Companies in Tamalpais-Homestead Valley, CA (2025 Reviews)

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• Protect your investment: When you have an older home, your windows could also be outdated or leaky.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.

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.