Homversa
Find. Call. Fixed. - every listing checked against the official license or credential registry for its trade.

Best Licensed Insulation Contractors in Manteca, CA

5 insulation companies registered in Manteca hold current CSLB licenses, verified against official records as of August 17, 2026. All 5 are listed below, ordered by years licensed.

How we chose: We identified 5 companies registered in Manteca. 5 passed license verification. All 5 are listed below. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. 1.C2 Acoustical And Insulation Specialty

    ✓ CSLB License #1041130 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2018
    Phone
    (209) 673-8949

  2. 2.Valley Master Insulation

    ✓ CSLB License #1098262 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2022
    Phone
    (510) 935-4448

  3. 3.Lucatero Insulation Specialties

    ✓ CSLB License #1128750 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (510) 715-1464

  4. 4.Rmc Insulation Experts Inc.

    ✓ CSLB License #1148439 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2025
    Phone
    (209) 740-0772

  5. 5.Attic Repair Guys Inc.

    ✓ CSLB License #1155370 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2026
    Phone
    (510) 880-9233

Compare the top 5 at a glance

CompanyLicenseWorkers' compLicensed since
C2 Acoustical And Insulation Specialty#1041130Exempt or none on file2018
Valley Master Insulation#1098262Exempt or none on file2022
Lucatero Insulation Specialties#1128750Exempt or none on file2024
Rmc Insulation Experts Inc.#1148439Exempt or none on file2025
Attic Repair Guys Inc.#1155370On file2026

San Joaquin County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 28 active C-2 insulation and acoustical licenses in San Joaquin County, 6 of them registered in Manteca. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Manteca license has been held 1 year, and the longest-standing one dates to 2018. California law requires workers' compensation cover for C-2 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 2 of Manteca's 6 licenses (33.3%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 28 of the county's 28 licenses carry the same $25,000 bond California sets by statute. 1 county license reaches its expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Insulation Contractors in Manteca: common questions

How many licensed insulation contractors are there in Manteca?

6 active C-2 insulation and acoustical licenses are registered in Manteca, out of 28 across San Joaquin County. 5 Manteca-registered companies passed our license verification, and all 5 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license insulation contractors?

Yes. California licenses contractors by classification, and C-2 is the CSLB classification that authorises this work. 6 active C-2 insulation and acoustical licenses are registered in Manteca and 28 across San Joaquin County, the longest-standing issued in 2018. Only CLEAR, unexpired licenses appear here.

How do I check an insulation contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which California requires of C-2 licensees and 2 of Manteca's 6 currently carry. 1 San Joaquin County license expires within 90 days.

Other services in Manteca

Insulation Contractors in nearby cities