25 Best Window Replacement Companies in Portola Valley, CA (2023 Reviews)
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How Installing Energy-Efficient Windows in Portola Valley Saves You Money

By upgrading to energy-efficient windows, you can take advantage of several benefits, including:

• Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
• Reduce your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% after you install Energy Star certified windows. In Portola Valley, that's about 117 pounds per year on average.
• Save on electricity bills: Switching to energy-efficient windows lowers your energy bills by about 12% since you use less energy.
• Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.

Estimated Cost of Window Replacement in Portola Valley

Windows come in different styles, shapes and purposes, so costs and services will differ considerably depending on several factors. Below, we describe the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

Generally, homeowners in Portola Valley can anticipate that most window installations will cost between $250 and $1,200, with the average cost at around $600. This is because the cost of window installations depend on a variety of factors specific to your home, like the size, material and number of windows you need to install, as well as the location of your property.

It's important to remember 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 Portola Valley homeowners $440+ a year when replacing single-pane windows.

The cost of your window installation will also vary based on the type of material you choose for the frames. Wood windows are generally the most expensive, though it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

The first thing to ask yourself when planning on installing new windows is: Should you get a full-frame installation or a pocket installation?

Full-frame installations involve replacing the entire window — the sill, frame, trim and all. These are typically done when you want to change the style of your window or when it has a great amount of deterioration. Full-frame installations require more time and labor and will increase overall costs. A pocket installation entails replacing a window without taking out the complete frame, which tends to be less expensive than a full-frame installation.

Your window installation company can help you decide which type of installation you should get.

How We Choose the Best Window Installers in Portola Valley

In our search to make your home improvements easier and more eco-friendly in Portola Valley, the EcoWatch Reviews team landed on the above companies as the top window installation companies in the city. We've decided to evaluate the top window installers in Portola Valley mostly based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

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

Work Quality

When installing new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the type of window you choose. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another super important review factor. If most customers don't have positive things to say about their service from a certain window installation company, it won't be featured on EcoWatch.

Cost

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

Warranty

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

Years of Experience

Last but not least, we like to see companies that have been in the industry for a while. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.