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

How Installing Energy-Efficient Windows in Hillsborough Saves You Money

By switching to energy-efficient windows, you can enjoy several benefits, such as:

• Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% when you install Energy Star certified windows. In Hillsborough, that’s about 117 pounds per year on average.
• Protect your valuables from fading: When you switch to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
• Protect your investment: When you have an older home, your windows could also be outdated or leaky.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.
• Save money on energy bills: After you switch to energy-efficient windows, you can expect a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.

Estimated Cost of Window Replacement in Hillsborough

Windows come in all shapes and sizes, so costs and services will vary tremendously. Here are the average costs and services that you can find from the average window installation company.

How Much Do New Windows Cost?

On average, homeowners in Hillsborough can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at about $600. How much it will cost depends on several factors, such as material, size, number of windows, type, the location of your home and more.

It’s also worth noting that energy-efficient windows will usually cost more initially, but Energy Star estimates that switching out the windows on your Hillsborough home translates to an average energy savings of $236 to $319 a 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.

Costs will also vary based on the material of your frame. Aluminum frames cost the least. They’re sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also offer 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?

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

Full-frame installations are usually done when you want a new style or your window has a lot of rot. With this service, your professionals will replace the whole window, including the trim, sill and frame. A pocket installation involves replacing a window without replacing the frame. So, instead of removing the whole window and reinstalling it, the window installer will just slide the replacement window (also called a retrofit or insert window) into the frame.

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

How We Choose the Best Window Installers in Hillsborough

In our search to find the most reliable, eco-friendly window installers in Hillsborough, the EcoWatch Reviews team assessed dozens of companies before deciding on these. Along with energy efficiency, we assessed each installer and assigned rankings using the following methodology:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve the Hillsborough area so you can find the right window installation company near you.

Work Quality

We’re willing to bet that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer included in our guide to make sure its technicians are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.

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 reflects the quality of services across most other categories, including warranty, professionalism, quality of parts, quality of installation, cost 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 providers’ prices, 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. That’s why window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

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