10 Best Window Replacement Companies in Los Altos Hills, CA

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Last Updated: February 25, 2025

Windows play a big role in your house's appearance and energy efficiency. Replacing your windows is a great way to increase the value of your home. Old or damaged windows can cost you in electric bills — about an extra $461 a year in Los Altos Hills. The Department of Energy estimates that 25–30% of your home’s heat or cool air could be going out your windows. Choosing the right company for you is a big decision. That's why we've curated this list of the top window installers in Los Altos Hills.

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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 Los Altos Hills

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

Free assessment

Educational website

Price transparency

Good customer service

Services Offered

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

The Glass Guru

The Glass Guru Logo

Our Rating

User Rating

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

Good customer service

Educational website

Free assessment

Services Offered

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

Roxy Glass

Roxy Glass Logo

Our Rating

User Rating

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

Price transparency

Educational website

Good customer service

Timely service

Free assessment

Services Offered

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

Best Exteriors

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Our Rating

User Rating

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

Educational website

Price transparency

Timely service

Good customer service

Free assessment

Services Offered

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

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

Price transparency

Good customer service

Educational website

Timely service

Free assessment

Services Offered

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

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

Timely service

Good customer service

Free assessment

Price transparency

Educational website

Services Offered

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

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

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

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

Free assessment

Good customer service

Price transparency

Services Offered

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

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

Free assessment

Good customer service

Educational website

Services Offered

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

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

Timely service

Good customer service

Educational website

Free assessment

Price transparency

Services Offered

Mirrors
Skylights
Bay windows
Double-hung
Window replacement/installation
Glass showers
Energy-efficient options
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 Los Altos Hills?

The price of window installation or replacement will be influenced by a number of factors, including the number and size of the windows, the materials you choose, and how difficult your windows are to access or install. On average, Los Altos Hills homeowners should expect to 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

New, energy-efficient windows can significantly enhance your home's value, appearance, insulation, noise reduction, and comfort. Clear indicators that it's time for window replacement include the following:

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

How To Choose a Window Company

Hiring a qualified windows installation contractor is critical to a successful project. Below, you'll learn the most important considerations when it comes to making your selection.

Experience

Make sure you select a seasoned local installer with a proven track record of successfully installing and replacing windows. Companies that have been operating locally for many years are more likely to understand the local climate and local homeowners' needs. Get references from recent clients to learn more about a provider’s service.

Certifications

Choose an installer that’s certified like major window manufacturers, and that has Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Suitable credentials indicate they've received suitable education in installation best practices. Make sure installers are staff, not subcontracted laborers, and confirm that any technicians working on your home have certification.

Reputation

Spend time reading through online reviews, checking the Better Business Bureau, and requesting local references. Review customer feedback to verify that the company consistently delivers good workmanship and service. Avoid companies with complaints of poor or incomplete work.

Process

The most experienced window installation providers will supply a comprehensive project plan and schedule, clear expectations, and an overview of all product and installation options. Avoid companies that offer vague quotes or timelines that lack necessary details. Look for ongoing contact throughout to avoid surprises later on.

Warranties

Look for companies that back their work with guarantees and offer warranties on labor and materials. This is a sign of trust in their window installations. Look for unlimited lifetime warranties that can even transfer to new homeowners.

Materials

Ensure your provider installs durable, energy-efficient window brands that fit your budget. Look for design flexibility, enhanced UV protection, and good energy ratings. Confirm the window materials have their own manufacturer warranties as well.

Frequently Asked Questions About Window in Los Altos Hills, CA

In Los Altos Hills, the optimal time to install windows is during the winter when the temperatures are not as high, so the windows can fit and adjust properly. A professional local window installer in Los Altos Hills will be able to tell you when the best time is to install windows on your house.

The ideal type of replacement windows for your Los Altos Hills home depends on when your home was built –the average house in Los Altos Hills was built around 1975. If your home was built a while ago, you may want to consider energy-efficient windows such as double-glazed windows, which are made to keep your home cool in the summer and warm in the winter. Wood frames also have a classic look that's great for older homes. For newer homes, you may want to think about vinyl windows, which are durable, affordable and have a modern look.

The types of window that usually last longest are ones constructed from vinyl or wood, with triple glaze for extra insulation. Vinyl windows are known for their durability and need minimal maintenance, and wood windows provide a more traditional look. Tripling up on the glazing will reduce energy costs in the long run. This is especially helpful during Los Altos Hills' hot summers.

The process for installing windows typically starts with measuring the existing windows and ordering new ones. Next, a professional installer will prep the work area, take out the existing windows, and install the new ones. Once this is done, your installer will trim out the space and finish by sealing the window.

In some cases, you can install your own windows, but it's better to hire a professional. It's important to consider the local temperature when replacing windows, as it will affect the process. For example, the temperatures in Los Altos Hills can reach an average high of 71, so you need to consider energy-efficient windows that can deflect from the heat. It's also important to get the measurements right and follow the instructions for installation. Hiring a professional for your window replacement project will guarantee that everything is installed correctly.

After window installation, it's important to inspect the windows for any air leaks and make sure they're properly sealed. You should also wash the windows at least once a year to prevent debris from building up and causing damage. Additionally, you should check the window sills and frames regularly to make sure that the seals are not deteriorating or breaking.

Window replacement companies in Los Altos Hills typically offer many services, including replacing windows, repair, window maintenance, window cleaning, window tinting, and weatherproofing.

Other Los Altos Hills, CA Home Services

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