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Best Licensed Insulation Contractors in Santa Clara, CA

8 insulation companies registered in Santa Clara hold current CSLB licenses, verified against official records as of August 17, 2026. All 8 are listed below, ordered by years licensed.

How we chose: We identified 8 companies registered in Santa Clara. 8 passed license verification. All 8 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.J & J Acoustics Inc.

    ✓ CSLB License #469448 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1985
    Phone
    (408) 275-9255

  2. 2.De Bella Mechanical Inc.

    ✓ CSLB License #520449 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1987
    Phone
    (408) 758-7144

  3. 3.Classic Acoustics

    ✓ CSLB License #709465 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1995
    Phone
    (408) 857-3514

  4. 4.Greenshield Inc.

    ✓ CSLB License #981761 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2013
    Phone
    (408) 291-0107

  5. 5.Level 5 Inc.

    ✓ CSLB License #1012649 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2016
    Phone
    (408) 566-1560

  6. 6.Bay Area Mechanical Insulation

    ✓ CSLB License #1013206 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2016
    Phone
    (408) 980-8741

  7. 7.Scx Unlimited

    ✓ CSLB License #1053693 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2019
    Phone
    (408) 728-5901

  8. 8.Repipe Champions Plumbing And Rooter Inc.

    ✓ CSLB License #1057926 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2019
    Phone
    (408) 295-4309

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
J & J Acoustics Inc.#469448On file1985
De Bella Mechanical Inc.#520449On file1987
Classic Acoustics#709465On file1995
Greenshield Inc.#981761On file2013
Level 5 Inc.#1012649On file2016
Bay Area Mechanical Insulation#1013206On file2016

Santa Clara County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 51 active C-2 insulation and acoustical licenses in Santa Clara County, 9 of them registered in Santa Clara. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Santa Clara license has been held 10 years, and the longest-standing one dates to 1985. 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: 7 of Santa Clara's 9 licenses (77.8%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 51 of the county's 51 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 Santa Clara: common questions

How many licensed insulation contractors are there in Santa Clara?

9 active C-2 insulation and acoustical licenses are registered in Santa Clara, out of 51 across Santa Clara County. 8 Santa Clara-registered companies passed our license verification, and all 8 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. 9 active C-2 insulation and acoustical licenses are registered in Santa Clara and 51 across Santa Clara County, the longest-standing issued in 1985. 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 7 of Santa Clara's 9 currently carry. 1 Santa Clara County license expires within 90 days.

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