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Best Window Replacement Companies in Danville, CA

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  3. Window Replacement
  4. CA
  5. Danville
Written By Max Peterson|Last Updated: February 05, 2024

Replacement windows can shield your home from leaks and drafts, boost its energy efficiency, and provide it with extra charm. Local contractors recognize that homeowners would rather not pay a pretty penny for window replacement in Danville. They work with cost-efficient materials that don't sacrifice durability.

Top Pick
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Best Financing
  • Full-service installation
  • In-house, U.S.-made products
  • More than 70 years of experience
Most Customizable
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Top 10 Danville Window Installation Companies

We recommend working with one of these highly-rated professionals for your window replacement in Danville.

Danville residents can trust the This Old House Reviews Team to provide timely, up-to-date window installer recommendations. To find out the best providers, we emphasize these five traits:

  • Energy-efficiency guarantees
  • Services and warranties
  • Product quality
  • Professional experience and licensure
  • Customer reviews and recommendations
Windows & Beyond Logo

Windows & Beyond

Based on 22 customer reviews.

Services Offered

Energy-Efficient OptionsBay WindowsSkylightsVinyl FramesWindow Replacement/installation


  • Free assessment
  • Good customer service
  • Price transparency
1027 Shary Ct, Concord, CA 925-689-6600 windowsandbeyond.net
Diablo Custom Screen & Glass Logo

Diablo Custom Screen & Glass

Based on 39 customer reviews.

Services Offered

Custom GlassBay WindowsWindow Replacement/installationGlass Showers


  • Educational website
  • Price transparency
  • Good customer service
1065 Shary Cir, Concord, CA 925-689-1100 diabloscreen.com
Cal Coast Window & Door Logo

Cal Coast Window & Door

Based on 112 customer reviews.

Services Offered

Window Replacement/installationEnergy-Efficient OptionsBay WindowsGlass Doors


  • Educational website
  • Good customer service
  • Price transparency
5673 W Las Positas Blvd Suite 203, Pleasanton, CA 925-398-8184 calcoastwindows.com
Rojas Construction and Remodeling, Inc. Logo

Rojas Construction and Remodeling

Based on 15 customer reviews.

Services Offered

Window Replacement/installation


  • Good customer service
  • Price transparency
  • Free assessment
2072 Essenay Ave, Walnut Creek, CA 925-584-6911 rojasremodel.com
Lafayette Glass Company Logo

Lafayette Glass Company

Based on 25 customer reviews.

Services Offered

Glass DoorsCustom GlassWindow Replacement/installationGlass ShowersEnergy-Efficient OptionsWindow RepairMirrors


  • Free assessment
  • Timely service
  • Price transparency
3375 Mount Diablo Blvd, Lafayette, CA 925-284-9510 lafayetteglasscompany.com
Dan's Glass Inc Logo

Dan's Glass

Based on 29 customer reviews.

Services Offered

MirrorsWindow RepairGlass ShowersBay WindowsWindow Replacement/installationGlass RepairGlass Doors


  • Price transparency
  • Timely service
  • Educational website
1600 Concord Ave, Concord, CA 925-827-4173 dansglassinc.com
Luxe Concepts Windows & Glass Logo

Luxe Concepts Windows & Glass

Based on 17 customer reviews.

Services Offered

Glass DoorsMirrorsWindow Replacement/installationGlass Showers


  • Good customer service
  • Price transparency
  • Educational website
2193 E 14th St, San Leandro, CA 510-346-2662 luxeconceptsinc.com
Custom Exteriors, Inc Logo

Custom Exteriors

Based on 123 customer reviews.

Services Offered

Bay WindowsEnergy-Efficient OptionsGlass DoorsWindow Replacement/installationCustom Window Designs


  • Price transparency
  • Educational website
  • Free assessment
2142 Rheem Dr Ste E, Pleasanton, CA 888-957-7800 custom-exteriors.com
Diablo Glass Inc. Logo

Diablo Glass

Based on 30 customer reviews.

Services Offered

Window Replacement/installationMirrorsGlass DoorsGlass Showers


    1940 Concord Ave, Concord, CA 925-682-8271 diabloglassinc.com

    More Local Window Companies

    Glass Doctor of The Bay Area

    User Reviews: 4.5/5 

    773 Berry Ave
    Hayward, CA 94544

    Action Glass, Inc

    User Reviews: 4.2/5 

    1301 Galaxy Way
    Concord, CA 94520

    Quality Windows & Doors

    User Reviews: 4.7/5 

    3732 Stanley Blvd Ste B
    Pleasanton, CA 94566

    Reborn Cabinets Inc.

    User Reviews: 5/5 

    1306 Stealth St a
    Livermore, CA 94551

    Bayside Builders Group

    User Reviews: 4.7/5 

    1151 Harbor Bay Pkwy suite 206G
    Alameda, CA 94502

    Bay Home & Window

    User Reviews: 4.3/5 

    40 California Ave Suite H
    Pleasanton, CA 94566

    To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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    Facts about Danville
    Annual Energy Efficient Windows Savings:$579
    Average Max Temp:71°F
    Average Min Temp:49°F
    Average Daily Sunlight:68%
    Average Annual Snowfall:0.2"
    Average Monthly Precipitation:1.47"

    Expert Tips By

    This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

    How To Choose a Window Company in Danville

    It's important to find a window provider that meets your unique values, needs, and preferences. Consider the following areas during your hunt:

    Window Cost by Type

    When it comes to window replacement, cost-effectiveness is most important. Each window you purchase should provide unparalleled durability at a reasonable price point. Choosing economy windows could actually raise your overall cost, due to their shorter lifespan and more intensive maintenance needs. The final cost of your window replacement will depend on the particular sizes, styles, and materials you need. Transom windows are inexpensive with their simple size and straightforward form factor, while a sweeping, custom-size picture window will cost more. If you're unsure, a window provider can help you figure out which options are ideal for your home.

    To help you form a rough estimate, this table shows the typical cost of the most common residential window types.

    Window TypesAverage Cost
    Glass Block$46-$584

    Window Material Cost

    Materials also help determine a window's cost. You might pick a material based on the local climate, your desired look, and your energy efficiency goals. For example, wood windows can give your home an organic design without breaking the bank, but you'll have to invest more toward maintenance. Aluminum and composite windows cost more up-front, but they're incredibly durable against the elements, so you'll spend far less on maintenance.

    Window TypesAverage Cost

    Other Window Replacement Costs

    Ask each company you're evaluating about warranty fees, labor costs, and permit fees. This will help you gain a complete understanding of the financial commitment involved in the project.

    Experience and Training

    The longer a window provider has been in business, the better its workmanship will likely be. Talk with a company representative to learn more about its experience, guarantees, and public and private credentials. Company websites often keep photo galleries demonstrating previous work technicians have done.

    Licensing and Credentials

    A California window installer must be licensed as a General Building Contractor, Window Coverings Contractor and Glazing Contractor if it performs jobs valued at over $500. Each certification has its own test and experience requirements. If a contractor is caught working without a license, they'll have to pay steep fines.

    Types of Windows Offered

    The kind of window you want should play a role in your company choice. Not every installation crew will necessarily be familiar with the window styles you want. A company website will show more about the varieties of windows it works with, such as:

    • Awning
    • Bay
    • Bow
    • Casement
    • Crank-out
    • Custom
    • Double- or single-hung
    • Egress
    • Garden
    • Jalousie
    • Picture
    • Sliding
    • Skylight
    • Specialty
    • Storm
    • Transom
    • Vent
    Also, check the kind of window framing materials a company works with. Each material has different price points, life spans, and energy performance capabilities. Common materials include wood, fiberglass, vinyl, aluminum and composite.

    Customer Feedback

    One of the most surefire ways to vet a company is to see what other customers have written about their experiences. You can find customer reviews on websites like Trustpilot, Yelp, Google, and the BBB. Ask people you know who have used the company you're interested in, and ask a representative for professional references.

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    Frequently Asked Questions About Window Replacement in Danville

    How could new windows help my energy efficiency?

    In Danville specifically, most homeowners using efficient windows cut their carbon emissions by 120 pounds every year. That amounts to $580 of annual savings.

    The U.S. Department of Energy states that 25%–30% of a home's heating and cooling capacity is used to compensate for heat gain and heat loss through windows. By purchasing new, more efficient windows, you can enhance your home's energy efficiency and lower your electricity bills.

    What time of year should I replace my windows?

    There is no "right" time to upgrade your windows, but some seasons might be better than others depending on company demand and the local climate. Danville experiences little to no wintertime snowfall, giving you more dry and warm days perfect for the job.

    How long does a window replacement job take?

    It could take up to 4–7 weeks to begin installation after the contractor orders your windows from the manufacturer. The installation itself usually takes 40–60 minutes per window. Bigger windows will take more time to get done, but a very efficient crew can finish the installation quicker.

    To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

    More Window Resources

    National Windows Company Ranking Methodology


    Energy Star