Contractors/California/Insulation Contractors
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California Insulation Contractors

Looking for insulation contractors in California? Below are 10 top-rated insulation contractors serving California in 2026 — every one rated 4.0+ stars with 10 or more verified Google reviews. Compare ratings and review counts, then contact them directly by phone or website. No middleman, no lead fees.

Listings are sourced from public Google Business Profiles and sorted by rating. Are you a California insulation contractor? Add your business free below.

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1

Tyson Insulation

5645 E Westover Ave #101, Fresno, CA 93727, USA

5.0star

479 reviews

Reviews via Google

phone(559) 238-4930
2

California Attic & Build

4901 Morena Blvd, San Diego, CA 92117, USA

5.0star

150 reviews

Reviews via Google

phone(619) 975-3126
3

ELM INSULATION & SOUND SOLUTIONS

12402 Killion St, Valley Village, CA 91607, USA

5.0star

83 reviews

Reviews via Google

phone(818) 875-7227
4

Hunter's Insulation

17614 Los Alimos St, Granada Hills, CA 91344, USA

5.0star

66 reviews

Reviews via Google

phone(818) 979-5857
5

Vortex Insulation

1273 Industrial Pkwy W #530, Hayward, CA 94544, USA

5.0star

47 reviews

Reviews via Google

phone(510) 963-5713
6

Phoenix insulation inc

1971 E Washington Ave #3, Escondido, CA 92027, USA

5.0star

40 reviews

Reviews via Google

phone(760) 879-7340
7

Cal Spray Foam Insulation

Bakersfield, CA 93301, USA

5.0star

33 reviews

Reviews via Google

phone(820) 300-7733
8

Insulation Labs

7023 Valjean Ave, Van Nuys, CA 91406, USA

4.9star

415 reviews

Reviews via Google

phone(877) 786-5553
9

DS Insulation Corp & Specialties

6723 32nd St F, North Highlands, CA 95660, USA

4.9star

121 reviews

Reviews via Google

phone(916) 241-7528
10

Everguard Home Insulation

23450 Collins St, Woodland Hills, CA 91367, USA

4.9star

116 reviews

Reviews via Google

phone(818) 348-1460

Data sourced from Google Places. Updated April 12, 2026.

Hiring an Insulation Contractor in California

Buildermuse currently lists 10 insulation contractors in California, averaging 5.0 stars across 1,550 verified Google reviews. That is an unusually strong field — when nearly every firm clears 4.8 stars, response time and availability become the real differentiators, so call two or three rather than only the top result. Most of the crews above operate out of Bakersfield, Escondido, and Fresno.

California has the largest contractor licensing system in the U.S. Unlicensed work over $500 is a misdemeanor. The CSLB actively investigates unlicensed contracting. Confirm credentials with the Contractors State License Board (CSLB) at (800) 321-2752 before work begins. Licenses renew on a two-year cycle (active license date). Expect a $450 state application fee.

Labor is the biggest line item on most bids, and the California market sets the floor: construction workers here average $42.58 an hour — about $88,556 a year — across 920,470 workers statewide, per Bureau of Labor Statistics data. That puts California among the pricier construction labor markets in the country, so expect quotes to reflect it.

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