10 Best Window Replacement Companies in Hillsborough, CA

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Last Updated: February 25, 2025

Upgrading your windows can be expensive, but is a great way to increase your home's energy efficiency and its value. If your windows are outdated or damaged, 25–30% of your house’s heat or cool air could be leaking out, according to the Department of Energy. In Hillsborough, this can add an extra $461 per year on your energy bills. Choosing a window installer can be time-consuming, which is why we've compiled a guide to the top window installers in Hillsborough.

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Top Pick
4.1/5
  • Great quality
  • Free assesment
  • Timely Service
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty
Best Customer Service
4.0/5
  • Award winning company
  • Products made in the US
  • Knowledgeable sales representatives

Top 10 Best Window Replacement Companies in Hillsborough

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Renewal by Andersen of San Francisco

Renewal by Andersen of San Francisco Logo

Our Rating

User Rating

30806 Santana St, Hayward, CA 94544 (510) 803-3110 renewalbyandersen.com

Good customer service

Educational website

Free assessment

Price transparency

Services Offered

Window replacement/installation
Glass doors
Bay windows
Double-hung
Skylights

The Glass Guru

The Glass Guru Logo

Our Rating

User Rating

1601 Enterprise Dr STE 14, Fairfield, CA 94533 (707) 348-9539 theglassguru.com

Free assessment

Good customer service

Educational website

Services Offered

Energy-efficient options
Glass repair
Triple pane glass
Mirrors
Wood frames
Metal frames
Tempered glass
Window repair
Vinyl frames
Glass doors
Custom glass
Skylights
Window replacement/installation
Glass showers
Fiberglass frames
Storm/impact windows
Screen repair

Roxy Glass

Roxy Glass Logo

Our Rating

User Rating

7401-A Morton Ave, Newark, CA 94560 (510) 400-7788 bayareawindowglass.com

Good customer service

Timely service

Price transparency

Educational website

Free assessment

Services Offered

Tempered glass
Mirrors
Custom glass
Glass doors
Bay windows
Triple pane glass
Window replacement/installation
Energy-efficient options
Glass repair
Glass showers

Best Exteriors

Best Exteriors Logo

Our Rating

User Rating

1999 Harrison St #10219, Oakland, CA 94612 (510) 327-0277 bestexteriors.com

Price transparency

Timely service

Free assessment

Educational website

Good customer service

Services Offered

Bay windows
Vinyl frames
Energy-efficient options
Wood frames
Window replacement/installation
Double-hung
Fiberglass frames
Glass doors

California Glass of Vallejo, Inc.

California Glass of Vallejo, Inc. Logo

Our Rating

User Rating

1014 Broadway, Vallejo, CA 94590 (707) 643-5609 calglassofvallejo.com

Good customer service

Free assessment

Timely service

Price transparency

Educational website

Services Offered

Custom window designs
Custom glass
Glass repair
Mirrors
Window replacement/installation
Bay windows
Glass showers
Glass doors

Sunset Glass Inc

Sunset Glass Inc Logo

Our Rating

User Rating

4301 Irving St, San Francisco, CA 94122 (415) 664-1626 sunsetglassinc.com

Free assessment

Educational website

Services Offered

Glass doors
Fiberglass frames
Wood frames
Tempered glass
Glass showers
Metal frames
Vinyl frames
Window replacement/installation
Mirrors

Super Mario Glass Inc

Super Mario Glass Inc Logo

Our Rating

User Rating

544 Lewelling Blvd b, San Leandro, CA 94579 (510) 324-8798 supermarioglass.net

Educational website

Timely service

Price transparency

Good customer service

Free assessment

Services Offered

Glass doors
Window repair
Bay windows
Screen repair
Window replacement/installation
Mirrors
Custom glass
Glass showers
Glass repair

Celtic Glass, Inc.

Celtic Glass, Inc. Logo

Our Rating

User Rating

106 Burrows St, San Francisco, CA 94134 (415) 468-0980 celticglassinc.com

Price transparency

Good customer service

Educational website

Free assessment

Services Offered

Vinyl frames
Glass repair
Glass showers
Window replacement/installation
Energy-efficient options
Mirrors
Wood frames
Glass doors
Bay windows
Window repair

North Glass Windows & Doors

North Glass Windows & Doors Logo

Our Rating

User Rating

105 Main St, Ben Lomond, CA 95005 (831) 336-2288 northglass.net

Good customer service

Free assessment

Price transparency

Services Offered

Window repair
Window replacement/installation
Glass repair
Skylights
Custom glass
Glass doors
Glass showers
Mirrors

J & M Windows and Glass

J & M Windows and Glass Logo

Our Rating

User Rating

745 E McGlincy Ln, Campbell, CA 95008 (408) 371-7255 jandmglass.com

Educational website

Good customer service

Price transparency

Timely service

Free assessment

Services Offered

Mirrors
Glass showers
Energy-efficient options
Bay windows
Skylights
Double-hung
Window replacement/installation
Glass doors
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Hillsborough?

Window installation and replacement costs are influenced by several factors, including how difficult your windows are to access or install, the materials you choose, and the number and size of the windows. On average, Hillsborough homeowners will spend around $300 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Adding new energy-efficient windows can significantly improve your home's value, noise reduction, comfort, insulation, and appearance. Signs that it's time to invest in new windows include the following:

  • Inefficient and outdated window styles that detract from your home’s curb appeal.
  • Cold air and drafts leaking in from old, loose-fitting windows.
  • Discomfort and high energy bills from poor insulation around windows.
  • Windows that are hard to open, close, or lock properly due to age and wear.
  • Condensation issues, fogging between window panes, or rotting window frames that allow moisture intrusion into the home.

How To Choose a Window Company

For a successful window replacement, you want to locate an installation contractor with proven expertise. Below, we go over the most important criteria for picking a window installer.

Experience

Look for well-established local companies with many years, ideally decades, of experience successfully installing all kinds of windows. These providers are more likely to understand Hillsborough's climate and your requirements. Ask for references from recent clients to verify quality and experience.

Certifications

Look for installers that are backed by top window manufacturers and accredited by top industry associations, including the Fenestration and Glazing Industry Alliance, formerly known as the AAMA. Appropriate credentials mean that a provider has gotten proper training in quality installation methods. Ensure installers are employees rather than subcontractors. Verify that any technicians working on your home hold the right certifications.

Reputation

Take time to read online reviews, check the Better Business Bureau (BBB), and request local references. Review customer feedback to make sure that the company regularly provides good workmanship and service. Steer clear of companies with complaints of shoddy or unfinished work.

Process

The best company will take time to provide you with a comprehensive project plan, timeline, expectations, and reviews of all material and installation options. Beware of unclear quotes or timelines that lack clear and specific information. Look for ongoing communication throughout the process to avoid surprises later on.

Warranties

Seek out providers that stand behind their work and provide warranties on materials and labor. This is a sign of confidence in their window installations. Seek out unlimited lifetime warranties that can be transferred to new homeowners.

Materials

Confirm that a window installer offers durable, long-lasting windows and leading energy-efficient window bands that fall within your budget. Research choices with good energy ratings, design flexibility, and enhanced UV protection. Verify that the materials have their own manufacturer warranties.

Frequently Asked Questions About Window in Hillsborough, CA

The ideal time to install windows in Hillsborough is when temperatures are moderate, generally in the spring or fall. These conditions enable professionals to do their work with less worry about the weather.

The best type of replacement window for your Hillsborough home will vary based on your home's age, as well as your personal style and budget. You'll want to consider the style of your home — such as if it's old — so your new windows match. Wood windows can provide a classic look and appearance, while vinyl-framed windows tend to be popular in newer homes. Fiberglass-framed windows are also a popular choice, since they can be energy efficient and durable.

The most expensive window types are those with multiple moving parts such as double-hung and casement windows. They are more intricate than single-hung windows, and so are more expensive. Single-hung windows are the least expensive on the market. Vinyl and aluminum are the most affordable frame options.

The process for window installation typically includes measuring the space, removing the old windows, installing the new windows, checking for proper sealing, and applying caulk around the edges of the frames. Extra steps may be necessary depending on the style of window being installed.

After window installation, it's important to check for any air leaks and make sure the windows are properly sealed. You should also clean the windows regularly to stop debris from building up and causing damage. Additionally, you should inspect the window sills and frames once a year to ensure that the seals are not wearing away or cracking.

Yes, many window companies provide financing options for their customers. Some installers offer low-interest loans, although you may not qualify if your income is on the higher end, while other companies provide unique financing plans with agreements and conditions that vary depending on the job.

Other Hillsborough, CA Home Services

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