20 Best Window Companies in Sonoma, CA (2025 Reviews)

How Installing Energy-Efficient Windows in Sonoma Saves You Money

By switching to energy-efficient windows, you and your family can benefit in several ways, such as:

• Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
• Decrease your carbon footprint: By using less energy once you upgrade to energy-efficient windows, you’ll also be decreasing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
• Protect your investment: When you have an older home, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its real estate value.
• Save money on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of energy use in your home. Installing energy-efficient windows can help decrease that amount, which helps you save some money on your bills.

Estimated Cost of Window Replacement in Sonoma

Each window installer offers varying services and has different costs depending on several factors.

How Much Do New Windows Cost?

The national average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. But prices vary considerably depending 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.

It’s important to bear in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save Sonoma homeowners $418+ a year when replacing single-pane windows.

The cost of your window installation will also vary depending on the type of window material you choose for the frames. Wood windows are usually the most expensive, but 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?

When considering window replacements, in general there are two kinds that your installer will have: full-frame and pocket installations.

Full-frame installations entail replacing the total window, including the frame, sill and trim. You most likely need a full-frame installation when you want to change the style of your windows or your window has noticeable deterioration. Because these installations are more involved, they will raise the total cost. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are simpler and won’t cost as much, but you can’t do this kind of installment if you have any pre-existing rot or water damage.

If you’re hiring a reputable window installation company, your company can advise you on the best type for your project. In Sonoma, the choice will mostly depend on how much damage there is currently and the age and condition of your existing frames.

How We Choose the Best Window Installers in Sonoma

In our hunt to make your home improvements easier and more eco-friendly in Sonoma, the EcoWatch team chose the above companies as the top window installation companies in the city. We’ve evaluated the top window installers in Sonoma mostly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Because this is a guide for Sonoma, we only included companies that cover the city. There are certainly reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in Sonoma.

Work Quality

When picking new windows, the quality and variety of services can often play just as important of a role in overall efficiency and performance as the brand of window you opt for. We do give window installers more points if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

We analyzed trends in recent online reviews to determine the companies with the most consistent 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 nearly every category, including cost, warranty, quality of parts, quality of installation, 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 scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

As discussed previously, windows are a hefty investment, so you’ll want to make sure that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Due to Sonoma’s climate, homeowners need to be wary of low efficiency, water damage and rot. We factored in local experience to reflect the ability of Sonoma window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.