23 Best Window Replacement Companies in Cupertino, CA (Jan 2023)
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How Installing Energy-Efficient Windows in Cupertino Saves You Money

Switching to energy-efficient windows can improve the comfort of your home and help you save on energy bills. Here's more information on how switching out your windows could benefit you:

• 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• Protect your investment: If you have a relatively old home, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help increase the value of your house if you decide to sell.
• Reduce your carbon footprint: By using less energy after switching to energy-efficient windows, you'll also be lowering your carbon dioxide emissions by about 12%, according to Energy Star.
• Save money on energy bills: The Department of Energy estimates that heat gained or lost through windows accounts for around 25-30% of energy use in your home. Switching to energy-efficient windows can help decrease that number, which helps you save more on your bills.

Estimated Cost of Window Replacement in Cupertino

Windows come in varying purposes, styles and shapes, so costs and services will differ greatly depending on your project. Below, we go over the average cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

The average cost to replace a single window is about $600 but can range from $200 to $1,200. But costs will vary significantly based on the number of windows you need, the current condition of your home, your location and the quality of your products. Many window companies also offer replacement door installations and other add-ons like shutters, baths, coating and more. These extra services will increase overall project costs.

Keep in mind that energy-efficient windows may have a higher price, but Energy Star estimates the upgrade will save you between $101 and $583 per year when replacing single-pane windows and between $27 and $197 per year when replacing double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.

Costs will also vary based on the material you choose for your window frames. Aluminum frames are the least expensive. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made from wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

In general, there are two kinds of window replacement services you can get: full-frame and pocket installations.

Full-frame installations are usually recommended when you want a new style or your window has a lot of deterioration. With this service, your professionals will replace the total window, including the sill, frame and trim. A pocket installation means replacing a window within the existing frame, which is generally cheaper than a full-frame installation.

Your window installation company should be able to help you understand what's best for your needs. In Cupertino, the decision will mostly be based on how old your home is and if there's any damage. Wood can decay if it's not maintained properly over the years, so it's good to have a professional evaluate your frames and window sills.

How We Choose the Best Window Installers in Cupertino

EcoWatch reviews differ from most reviews because we look at these companies through a sustainability lens. We have evaluated the best window installation companies in Cupertino primarily based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve the Cupertino area so you can find the best window installation company near you.

Work Quality

When installing new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand 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 online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including warranty, cost, quality of parts, quality of installation, professionalism and more.

Cost

This one is a give-and-take: similar to other services, cheap window installers may not provide the highest quality service. Still, we want to make sure we're highlighting companies that offer a range of price and financing options so they're accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. That's why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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