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

Best Licensed Insulation Contractors in Upland, CA

3 insulation companies registered in Upland hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by years licensed.

How we chose: We identified 3 companies registered in Upland. 3 passed license verification. All 3 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.True Heat Solutions

    ✓ CSLB License #1038643 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2018
    Phone
    (866) 722-3372

  2. 2.True Heat Solutions Norcal

    ✓ CSLB License #1068188 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2020
    Phone
    (916) 903-3634

  3. 3.Pinnacle Drywall

    ✓ CSLB License #1131293 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2025
    Phone
    (626) 415-6775

Compare the top 3 at a glance

CompanyLicenseWorkers' compLicensed since
True Heat Solutions#1038643On file2018
True Heat Solutions Norcal#1068188On file2020
Pinnacle Drywall#1131293Exempt or none on file2025

San Bernardino County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 53 active C-2 insulation and acoustical licenses in San Bernardino County, 3 of them registered in Upland. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Upland license has been held 5 years, 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 Upland's 3 licenses (66.7%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 53 of the county's 53 licenses carry the same $25,000 bond California sets by statute. 4 county licenses reach their 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 Upland: common questions

How many licensed insulation contractors are there in Upland?

3 active C-2 insulation and acoustical licenses are registered in Upland, out of 53 across San Bernardino County. 3 Upland-registered companies passed our license verification, and all 3 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. 3 active C-2 insulation and acoustical licenses are registered in Upland and 53 across San Bernardino 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 Upland's 3 currently carry. 4 San Bernardino County licenses expire within 90 days.

Other services in Upland

Insulation Contractors in nearby cities