Top Rated Insulation Contractors Serving Brentwood, 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 Brentwood including 94513. These insulation specialists provide crawl space insulation and spray foam insulation, and they also work on basement insulation, energy-efficient insulation and air sealing. 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 May 15, 2026
  • 29,008 people sourced companies in Insulation
    2,278 Verified Insulation Customers Surveyed
2,278
29,008
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McHale’s Environmental Insulation, Inc. is a home energy specialist that installs cellulose, fiberglass, cotton, sheep's wool, rockwool, and radiant b...
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Main Services

Insulation
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Additional Services

Attic/Walls/Floor Insulation, Materials: Cellulose, Fiberglass, Cotton, Rockwool, Sheep's Wool, Reflective Radiant Barrier, Vapor Barriers, Air Sealing & Insulation Removal, Storage Platforms

Brands

CertainTeed, Havelock Wool, Johns Manville, Mountain Fiber Insulation, Owens Corning

Coverage Areas

Contra Costa County, Alameda County

Family Owned
Family Owned
Walk-Ins Welcome
Walk-Ins Welcome
Senior Discount
Senior Discount
Residential Only
Residential Only
Hours CLOSED NOW
License:
896749
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Insul-Techs Inc provides a wide range of insulation services for residential and commercial clients in Contra Costa, Alameda, Santa Clara, San Francis...
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Main Services

Insulation
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Additional Services

Insulation Installation, Removal & Repair, Spray Foam & Fiberglass Insulation, Attic Cleanouts & Sanitation, Title 24 Requirements, Roof Insulation, Weatherization & Air Sealing, Soundproofing

Brands

Carlisle, CertainTeed, Greenfiber, Huntsman, International Fireproof Technology Inc

Coverage Areas

Contra Costa County, Alameda County, Santa Clara County, San Francisco County, Marin County, Solano County, Sonoma County, San Mateo County, Napa County

Established in 2016
Established in 2016
Residential & Commercial
Residential & Commercial
Free Quotes & Consultations
Free Quotes & Consultations
Text Responses Available
Text Responses Available
Hours CLOSED NOW
License:
1011102
Learn how to choose a Insulation and more…

Diamond Certified Insulation Contractors Serve These Brentwood ZIP Codes

94513

Diamond Certified Insulation Contractors In Brentwood

Diamond Certified insulation contractors serving Brentwood are rated an average of 4.7 out of 5 stars based on 561 reviews of 21 rated insulation contractors.
Diamond Certified insulation contractors in Brentwood Avg. Star Rating.

We make you an expert at choosing a high-quality insulation contractor in the Brentwood area.

For those who love quality local insulation contractors.

Within our Diamond Certified Resource:

You’ll love and refer your friends and family to your new Brentwood area Diamond Certified insulation contractor. They provide expert services, including reflective insulation, energy-efficient insulation, pipe insulation, radiant barrier insulation, soundproofing insulation, and more.

To qualify for Diamond Certified, each contractor must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified insulation contractors that serve Brentwood residents include McHale's Environmental Insulation, Inc., and Insul-Techs Inc.

Every Diamond Certified insulation contractor that serves residents in 94513 performs various specialties, including basement insulation, crawl space insulation, thermal insulation, insulation removal, and ceiling insulation.

How to Choose a Quality Brentwood Insulation Contractor for Your Family
  1. Click the name of the contractor to get to their Diamond Certified Company Report page.
  2. Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
  3. Read their verbatim client survey responses and our researched articles.
  4. Get helpful insulation tips if they are a Diamond Certified Expert Contributor.
  5. Call or email them to schedule an appointment.
Become a Diamond Certified Preferred Member and Join Your Brentwood Neighbors

If you love quality local contractors, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

Map of Brentwood, CA

Brentwood was founded in 1956, and today, your 34,637 neighbors enjoy rafting, beach volleyball, flower picking, beach walks and whale watching. Brentwoodians use Diamond Certified insulation contractors for attic insulation, roof insulation, spray foam insulation, energy-efficient insulation, radiant barrier insulation, and more.

Frequently Asked Questions for Insulation in Brentwood, CA
Q: What are clients of Diamond Certified insulation contractors saying about contractors in Brentwood, CA?
A: Verified McHale's Environmental Insulation, Inc. Customer, 1 of 525
"When they removed old insulation from our attic that we didn't feel was safe, something happened where a light went out. They stuck around, figured out what the problem was, and they fixed it. They took the time to make sure everything worked well and right before leaving. They were willing to take the time to make sure the job was done right." - Amy P.
All Survey Responses for McHale's Environmental Insulation, Inc.
Verified Insul-Techs Inc Customer, 1 of 120
"Great customer service, everybody has been very respectful. They are efficient, and if you need them right away, you can call them and they will be out promptly. He is not one to hound you for money and he will send you an invoice when you are ready. They are very efficient and they know what they are doing. I have never had a failed inspection because of them." - Sammi D.
All Survey Responses for Insul-Techs Inc
Q: What are some of the most popular brands that Diamond Certified insulation contractors use when working with Brentwood residents?
A: Diamond Certified insulation contractors use top-quality brands like Duro-Last Roofing, GAF, Greenfiber, Johns Manville and Rockwool.
Q: What types of spray foam insulation do insulation contractors offer?
A: Insulation contractors offer air sealing services which address any gaps, cracks or holes in the building envelope that may be allowing air leakage. This can include sealing around windows and doors, sealing penetrations through walls and ceilings, and sealing any other areas that may be allowing air to escape. Air sealing is often done in tandem with the installation of insulation, as it helps to ensure that the insulation is performing to its fullest potential.
Q: Can Diamond Certified insulation contractors work with Owens Corning products and similar items so I can get crawl space insulation in Brentwood?
A: Yes, Diamond Certified insulation contractors in Brentwood can work with Owens Corning products and similar items to provide crawl space insulation.
Q: What did people search for when they wanted to find the best quality insulation contractors in Brentwood?
A: Insulation Removal
Crawl Space Insulation
Rockwool Insulation
Spray Foam Insulation
Spray Foam Insulation

Go to Area Guide

Our Brentwoodian's Guide to Local Quality

Brentwood is our home and we love it! Here you’ll find the best spots to revisit, the Brentwood events schedule, local social media links, stories of our Brentwood area unsung heroes and much more. Connect with your neighbors and share what you love about our hometown. Plus, join us as a Brentwood Diamond Certified Preferred Member (always free).
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This archway marks the entry to the vibrant, community-focused Downtown Brentwood. Photo: MichaelVi

The Homeowner's Guide to Insulation