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10 Best Window Replacement Companies in Danville, CA

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Written By David Cusick

Last Updated April 2024

Whether you want to increase your home's value or decrease your energy bills, replacing your windows is an excellent idea. In Danville, where the electricity bills are an average of $1,500 per year, you could be spending an extra $461 annually due to outdated or drafty windows. The Department of Energy estimates that heat gained or lost through windows could make up nearly 30% of residential energy climate use. Our list of the best window installation companies in Danville will help you find the best installer for you.

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Top 10 Best Window Replacement Companies in Danville

Renewal by Andersen of San Francisco

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

Educational website

Good customer service

Free assessment

Price transparency

Services Offered

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

Concord Glass, Inc.

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1015 Shary Cir #12, Concord, CA 94518 (925) 691-5090 concordglass.com

Educational website

Free assessment

Price transparency

Good customer service

Services Offered

Tempered glass
Mirrors
Window repair
Glass showers
Window replacement/installation
Energy-efficient options
Glass doors

Aames Windows & Doors Inc

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11 Orchard Ct suite d, Alamo, CA 94507 (800) 862-1947 aameswindows.com

Free assessment

Good customer service

Price transparency

Timely service

Services Offered

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

Windows & Beyond

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1027 Shary Ct, Concord, CA 94518 (925) 689-6600 windowsandbeyond.net

Good customer service

Free assessment

Price transparency

Educational website

Timely service

Services Offered

Vinyl frames
Bay windows
Window replacement/installation
Energy-efficient options
Skylights

Lafayette Glass Company

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3375 Mount Diablo Blvd, Lafayette, CA 94549 (925) 284-9510 lafayetteglasscompany.com

Free assessment

Price transparency

Timely service

Services Offered

Mirrors
Custom glass
Window repair
Glass doors
Glass showers
Energy-efficient options
Window replacement/installation

Diablo Custom Screen & Glass

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1065 Shary Cir, Concord, CA 94518 (925) 689-1100 diabloscreen.com

Educational website

Good customer service

Price transparency

Free assessment

Services Offered

Custom glass
Window replacement/installation
Glass showers
Bay windows

Bestoff Windows & Construction

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1000 Detroit Ave Suite "S, Concord, CA 94518 (925) 457-9026 bestoffwindows.com

Timely service

Price transparency

Free assessment

Good customer service

Educational website

Services Offered

Glass doors
Vinyl frames
Metal frames
Window replacement/installation

Pella Windows & Doors of Northern California

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3221B Danville Blvd, Alamo, CA 94507 (925) 263-9300 pellabranch.com

Price transparency

Free assessment

Good customer service

Educational website

Services Offered

Glass doors
Bay windows
Double-hung
Window replacement/installation

Best Exteriors

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689 E 14th St, San Leandro, CA 94577 (510) 961-3697 bestexteriors.com

Good customer service

Educational website

Price transparency

Free assessment

Timely service

Services Offered

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

Rayco Door and Window

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2516 San Carlos Ave, Castro Valley, CA 94546 (510) 538-3667 raycodoorandwindow.com

Good customer service

Price transparency

Free assessment

Services Offered

Double-hung
Glass showers
Bay windows
Window replacement/installation
Glass doors
Mirrors
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 Danville?

Window installation and replacement costs vary based on a number of 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, homeowners in Danville should expect to spend around $280 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 substantially improve your home's appearance, noise reduction, comfort, value, and insulation. Obvious signs that it's time for window replacement include the following:

  • Windows that are hard to close, open, and lock properly due to age and wear.
  • Inefficient and outdated window styles that take away from your house's curb appeal.
  • High energy bills and discomfort due to poor window insulation.
  • Cold air and drafts coming in from old, loose-fitting windows.
  • Fogging between window panes, condensation issues, or rotting window frames that let in moisture.

How To Choose a Window Company

Hiring an experienced window installer contributes to good results and a great experience. Below, we outline the main criteria for identifying a qualified window installer.

Experience

Make sure you select a seasoned local installer with a long record of successfully installing and replacing windows. Installers that have served Danville for years are more likely to have a deep knowledge of the local climate and local homeowners' needs. Get references from recent clients to learn more about a provider’s service.

Certifications

Select an installer that is certified by major window brands and groups like the Fenestration and Glazing Industry Alliance, formerly known as the AMMA. Appropriate accreditation means that a contractor has training in best practices for installation. Confirm that installers are staff rather than subcontracted workers, and check that the technicians working on your project are certified.

Reputation

Spend time reviewing online feedback, verifying with the Better Business Bureau (BBB), and asking for local references. Review customer feedback to make sure that the company regularly provides good workmanship and customer service. Avoid companies with complaints of shoddy work or unfinished jobs.

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 continual communication throughout the process to avoid surprises later on.

Warranties

Seek out window firms that back their installations with guarantees, and that offer warranties on materials and labor. This indicates faith in their work. Also look for unlimited lifetime warranties that can transfer to new homeowners.

Materials

Make sure your window installer offers windows that are built to last and top energy-saving window brands within your budget. Look for design flexibility, good energy ratings, and enhanced UV protection. Check that the window materials also come with manufacturer warranties.

Frequently Asked Questions About Window in Danville, CA

In Danville, the optimal time to install windows is during the winter when the temperature is not as high, so the windows can seal and settle properly. A professional local window installer in Danville will be able to explain when the best time is to install windows on your house.

The best type of replacement windows for your Danville home depends on the year your home was built –the average house in Danville was built around 1982. For older homes, you might want to consider efficient windows such as double-pane 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 might want to think about vinyl windows, which are affordable, durable and have a modern look.

You can save money on window installation by going with a cheaper option like single-hung windows with vinyl frames. These come at a lower cost compared to more expensive windows like wood, fiberglass, or double-hung windows.

The process for window installation typically includes taking measurements, removing the existing 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 kind of window being installed.

Replacing your own windows can be a difficult task, especially in Danville, where temperatures can get quite hot. It's generally best to hire a professional window installer. They have the knowledge and experience to ensure your windows are correctly installed and that you get the most out of your investment.

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

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