Top Rated Insulation Contractors Serving Union City, CA

If you really care about choosing a quality insulation contractor, we’re here for you. Here’s your access to the best insulation contractors serving Union City including 94587. These insulation specialists provide spray foam insulation and rockwool insulation, and they also work on soundproofing insulation, ceiling insulation and thermal insulation. For 22 years we’ve conducted the most accurate ratings and deepest research of local contractors, so you’ll be confident in choosing.

  • Last Updated Jun 22, 2025
  • 29,008 people sourced companies in Insulation
    2,278 Verified Insulation Customers Surveyed
2,278
29,008
1 of 1
Bay Valley Insulation installs and removes cellulose and fiberglass insulation for residential and commercial clients in Alameda, Contra Costa, Santa ...
Read More

Main Services

Insulation
loarrowgo

Additional Services

Cellulose & Fiberglass Insulation, Windows, Roof & Foundation Ventilation, Minor Duct Repairs, Energy Leakage Inspections

Brands

Greenfiber, Johns Manville

Coverage Areas

Alameda County, Contra Costa County, Santa Clara County, San Mateo County

Hours CLOSED NOW
License:
546944
Learn how to choose a Insulation and more…

Diamond Certified Insulation Contractors Serve These Union City ZIP Codes

94587

Diamond Certified Insulation Contractors In Union City

Diamond Certified insulation contractors serving Union City are rated an average of 4.8 out of 5 stars based on 249 reviews of 21 rated insulation contractors.
Diamond Certified insulation contractors in Union City Avg. Star Rating.

    Map of Union City, CA

    Union City was founded in 1909, and today, your 87,496 neighbors enjoy rock climbing, go-karting, sunbathing, quad biking and beachcombing. Union Citians use Diamond Certified insulation contractors for garage door insulation, basement insulation, fiberglass insulation, air sealing, insulation removal, and more.

    Frequently Asked Questions for Insulation in Union City, CA
    Q: What are clients of Diamond Certified insulation contractors saying about contractors in Union City, CA?
    A: Verified American Attic Customer, one of 60
    "They have good value. They are extremely easy to work with. I am very satisfied with the results. They are very thorough." -Richard C.
    All Survey Responses for American Attic
    Q: What are some of the most popular brands that Diamond Certified insulation contractors use when working with Union City residents?
    A: Diamond Certified insulation contractors use top-quality brands like Knauf Insulation, Greenfiber, Reflectix, GAF and CertainTeed.
    Q: What types of thermal insulation do insulation contractors offer?
    A: Insulation contractors offer a variety of reflective insulation products designed to reduce unwanted heat gain or loss. These products include foil-faced bubble wrap, reflective foil insulation, and radiant barrier insulation. Foil-faced bubble wrap is composed of air bubbles surrounded by a layer of reflective foil, and is used to reduce radiant heat transfer by reflecting heat away from the interior of a home. Reflective foil insulation is a thin layer of insulation with a reflective metallic or aluminum finish and is designed to reflect heat away from the home. Radiant barrier insulation is composed of a reflective material that blocks the flow of radiant heat, and is typically installed in attics.
    Q: Can Diamond Certified insulation contractors work with Owens Corning products and similar items so I can get spray foam insulation in Union City?
    A: Yes, Diamond Certified insulation contractors in Union City can work with Owens Corning products and similar items to provide spray foam insulation.
    Q: What did people search for when they wanted to find the best quality insulation contractors in Union City?
    A: Spray Foam Insulation
    Roof Insulation
    Crawl Space Insulation
    Rockwool Insulation
    Garage Door Insulation

    Go to Area Guide

    Our Union Citian's Guide to Local Quality

    Union City is our home and we love it! Here you’ll find the best spots to revisit, the Union City events schedule, local social media links, stories of our Union City area unsung heroes and much more. Connect with your neighbors and share what you love about our hometown. Plus, join us as a Union City Diamond Certified Preferred Member (always free).
    done

    This aerial shot showcases Union City’s suburban neighborhoods and surrounding fields. Photo: Rob