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10 Best Window Replacement Companies in Castro Valley, CA

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Written By David Cusick

Last Updated June 2024

Replacing your windows can be rather costly, but is an excellent way to improve the energy efficiency and value of your home. In Castro Valley, where the energy bills are an average of $1,500 per year, you could be spending an extra $461 annually due to damaged or drafty windows. The Department of Energy estimates that heat gained or lost through windows could be responsible for around 30% of heating and cooling usage. If you can't decide on a window installation company, you've found a great way to get started. Keep reading to find the best window installation companies in Castro Valley.

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4.0/5
  • Holds high customer ratings
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Top 10 Best Window Replacement Companies in Castro Valley

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

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

Price transparency

Good customer service

Educational website

Free assessment

Services Offered

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

The Glass Guru

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

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Good customer service

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

Roxy Glass

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

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Free assessment

Good customer service

Educational website

Timely service

Services Offered

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

Best Exteriors

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

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Good customer service

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Educational website

Services Offered

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

California Glass of Vallejo, Inc.

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

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Good customer service

Educational website

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

Super Mario Glass Inc

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

Good customer service

Educational website

Price transparency

Free assessment

Timely service

Services Offered

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

Sunset Glass Inc

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

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

Celtic Glass, Inc.

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

Good customer service

Educational website

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Price transparency

Services Offered

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

North Glass Windows & Doors

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

Good customer service

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

J & M Windows and Glass

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

Educational website

Timely service

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Free assessment

Good customer service

Services Offered

Mirrors
Glass doors
Window replacement/installation
Bay windows
Energy-efficient options
Double-hung
Glass showers
Skylights
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 Castro Valley?

Window installation and replacement costs are influenced by several factors, including how difficult your windows are to access or install, the number and size of the windows, and the materials you choose. On average, Castro Valley homeowners will spend around $290 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 greatly boost your home's insulation, comfort, appearance, noise reduction, and value. Clear indicators that it's time for window replacement include the following:

  • Drafts and cold air coming in from old, loose-fitting windows.
  • Discomfort and high energy bills due to poor insulation around windows.
  • Windows that are hard to open, close, and lock properly due to wear and age.
  • Fogging between window panes, condensation issues, or rotting window frames that let in moisture.
  • Inefficient and outdated window styles that take away from your home’s curb appeal.

How To Choose a Window Company

Hiring a qualified window installer is critical to a successful project. Below, you'll learn the main factors to consider when making your selection.

Experience

Look for reputable local companies with a long track record of experience successfully installing all kinds of windows. These providers are more likely to have a deep knowledge of Castro Valley's climate and local homeowner needs. Ask for references from recent clients to confirm the quality of a company's work.

Certifications

Select an installer that is accredited by leading window companies and associations like the Fenestration and Glazing Industry Alliance, formerly known as the AMMA. Suitable credentials show that a contractor is trained in best practices for installation. Confirm that installers are staff rather than subcontracted workers, and verify that any technicians working on your project are certified.

Reputation

Spend time going through online reviews, checking the Better Business Bureau, and asking for references from people in your area. Review customer feedback to confirm that a company consistently does quality work and provides good service. Avoid companies with complaints of shoddy or unfinished work.

Process

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

Warranties

Research window installers that provide guarantees on their work, and that offer warranties on products and labor. This demonstrates confidence in their work. Also seek out unlimited lifetime warranties that can transfer to new homeowners.

Materials

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

Frequently Asked Questions About Window in Castro Valley, CA

In Castro Valley, the ideal time to install windows is during the winter when the temperatures are not as high, so the windows can seal and adjust properly. A good local window installer in Castro Valley will be able to explain when the best time is to install windows on your home.

The ideal type of replacement windows for your Castro Valley home depends on when your home was built –the average house in Castro Valley was built around 1968. If your home was built a while ago, you might 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 timeless look that's perfect for older homes. For newer homes, you might want to consider vinyl windows, which are durable, affordable and have a modern look.

Windows made from vinyl, fiberglass, or wood are known to last the longest, with some lasting for close to 45 years. Vinyl windows are especially durable and low-maintenance, making them an excellent choice if you want windows that can last a long time. Extra glazing can help reduce your cooling and heating bills over time. This is especially helpful during Castro Valley's hot summers.

The installation process for windows typically takes 1–3 days depending on the size of windows to be installed. Professional window installers will be able to provide an estimate on the time it will take to complete the installation job, but you can expect it to take around 30 minutes per window.

In some cases, you can replace 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 impact the process. For example, the temperatures in Castro Valley can reach an average high of 70, so you should think about energy-efficient windows that can protect from the heat. It's also important to measure correctly and follow the instructions for installation. Hiring a professional for your window replacement project will ensure that everything is done correctly.

Window companies in Castro Valley usually offer a range of services, including measuring and installing new windows, fixing existing windows, replacing window glass, and hanging window treatments. They may also offer extra services such as weatherproofing or cleaning.

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