20 Best Window Companies in Redwood City, CA (2025 Reviews)

How Installing Energy-Efficient Windows in Redwood City Saves You Money

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

• Save money on power bills: Switching to energy-efficient windows reduces your energy bills by about 12% since you use less energy.
• Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out damaging UV rays.
• Decrease your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 117 pounds.
• Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes tend to have windows that are outdated, leaky or maybe even damaged in some way. Upgrading your windows could help raise the value of your property if you decide to sell.

Estimated Cost of Window Replacement in Redwood City

Windows come in different shapes and sizes, so costs and services will differ considerably. Here are the average costs and services that you’ll find from the average window installation company.

How Much Do New Windows Cost?

Generally, Redwood City homeowners can expect their replacement window installations to range from $250 to $1,200. The average cost is at about $600. How much it will cost depends on several factors, including size, type, material, number of windows, the location of your home and more.

Bear in mind that energy-efficient windows may come at a higher price point, but Energy Star predicts the upgrade will save you between $101 and $583 per year when installing single-pane windows and between $27 and $197 per year when you replace double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.

The cost of your window installation will also vary based on the type of window material you choose for the frames. Wood windows are typically the most expensive, although 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 shown to be more efficient.

What Services do Window Installers Offer?

The first step when considering an installation is to think about whether you want a full-frame or pocket installation.

Full-frame installations involve replacing the total window, including the frame, trim and sill. You most likely need a full-frame installation when you want a new style or your window has noticeable damage or rot. Because these installations are more involved, they will increase overall costs. A pocket installation entails replacing a window within the existing frame, which tends to be cheaper than a full-frame installation.

Your window installer should be able to help you figure out which type of installation you need.

How We Choose the Best Window Installers in Redwood City

The EcoWatch Reviews team is different from most reviewers because we examine these companies through a sustainability lens. Along with energy efficiency, we assessed several window installers in Redwood City and ranked them based on the following methodology:

Service Area

Since this is a guide for Redwood City, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in Redwood City.

Work Quality

We’re willing to bet that you’re looking for a company to do a great job installing windows. We’ve vetted each company featured in our guide to make sure its technicians are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent online reviews to find the companies with the most customer satisfaction. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, cost, quality of installation, quality of parts, warranty and more.

Cost

Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we gave higher scores 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 give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

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