Insulation contractors in California
Find insulation contractors across California. Use the city pages below to compare local pros, or scroll down to see the top-rated contractors statewide.
Browse insulation contractors by city in California
Choose a city to compare insulation contractors near you.
Anaheim, CA
Bakersfield, CA
Chico, CA
Chula Vista, CA
Fremont, CA
Fresno, CA
Irvine, CA
Long Beach, CA
Los Angeles, CA
Merced, CA
Modesto, CA
Oakland, CA
Oxnard, CA
Palmdale, CA
Redding, CA
Sacramento, CA
Salinas, CA
San Bernardino, CA
San Diego, CA
San Francisco, CA
San Jose, CA
Santa Ana, CA
Santa Barbara, CA
Santa Rosa, CA
Stockton, CA
Visalia, CA
Riverside, CA
El Centro, CA
Lancaster, CA
Top-rated insulation contractors in California
These are the highest-rated insulation contractors across all cities we track in California.
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Sort and filter contractors
Narrow the list for California by service, rating, or contractor name.
Straight Edge Insulation
5206 Sultana Dr, Atwater, CA 95301
Straight Edge Insulation offers spray foam insulation and related services across several California cities (Atwater, Merced, and more), with a track record of clear communication and high-quality, efficient workmanship.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Spray Foam Insulation Atwater, CA”
website: Shows service offering in Atwater, CA.
Workmanship
Excellent
Communication
Excellent
Scheduling
Ask during quoting
Cleanup
Ask during quoting
Insulation Labs
2141 Antelope Ave, Ventura, CA 93003
Ventura/Oxnard insulation contractor offering attic, crawl space, spray foam, and related services with a strong track record and responsive, professional team.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“The crew showed up on time, did the work, worked well together & very polite to my family. I would recommend them! They also kept everything as clean as possible.”
review: Shows punctuality, teamwork, courtesy, and cleanliness.
Workmanship
Ask for references
Communication
Excellent
Scheduling
Excellent
Cleanup
Excellent
Insulation Labs
1038 E Bastanchury Rd #141, Fullerton, CA 92835
Insulation Labs offers a broad suite of insulation and related home-performance services (attic, crawl space, spray foam, wall insulation, whole-house fans, and related systems) with a track record of strong customer satisfaction.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Amazing crew doing an outstanding job on our home’s attic insulation!”
review: Shows strong workmanship in attic insulation projects.
Workmanship
Excellent
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
Ask during quoting
Spring Valley Insulation Contractors
3151 Bancroft Dr, Spring Valley, CA 91977
Spring Valley Insulation Contractors offers full-service insulation options (blown-in, batt, spray foam) and insulation removal for homeowners and contractors in the San Diego area, with a Free Estimate option and a long-standing local presence.
Services offered
Trust signals
From reviews & website
“Blown-in Insulation – Batt Insulation – Spray Foam Insulation – Insulation Removal”
website: Shows the explicit insulation services offered to homeowners and contractors.
Workmanship
Ask for references
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
Ask during quoting
Attic Insulation Los Angeles
10250 Santa Monica Blvd #27, Los Angeles, CA 90067
Attic Insulation Los Angeles provides attic, wall, and spray foam insulation in Los Angeles with complimentary consultations and a track record of improving comfort and reducing energy costs, backed by strong reviews.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Your Trusted Local Insulation Experts”
website: Trust signals
Workmanship
Excellent
Communication
Excellent
Scheduling
Excellent
Cleanup
Ask during quoting
Atticare USA
303 W Joaquin Ave Unit #103, San Leandro, CA 94577
Atticare USA provides energy-efficiency home upgrades in the SF Bay Area, including insulation, air sealing, attic cleaning, rodent proofing, and more, backed by multiple 5-star reviews noting professionalism, on-time service, and noticeable energy savings.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Oakland spray foam insulation does an outstanding job! Friendly, professional, and fast. The quality of their work speaks for itself. highly recommend for anyone needing insulation done right.”
review: Shows positive perception of professionalism and workmanship.
Workmanship
Excellent
Communication
Excellent
Scheduling
Excellent
Cleanup
Excellent
What to verify in California
Plan before you hire
These pages help you build a shortlist, but they don't replace a proper scope discussion with each contractor. If you're still deciding what work your home needs, start with the insulation planning guide and ROI calculator.