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Best Licensed Insulation Contractors in Eureka, CA

5 insulation companies registered in Eureka 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 Eureka. 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.Mcmurray & Sons Inc.

    ✓ CSLB License #249538 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1968
    Phone
    (707) 443-3088

  2. 2.Northcoast Acoustics

    ✓ CSLB License #463191 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1984
    Phone
    (707) 444-9501

  3. 3.Strombeck Construction And Painting Inc.

    ✓ CSLB License #632297 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1991
    Phone
    (707) 822-4557

  4. 4.David Kitchen Construction

    ✓ CSLB License #696963 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1994
    Phone
    (707) 498-0948

  5. 5.Jnm Construction LLC

    ✓ CSLB License #1007718 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2015
    Phone
    (707) 496-1380

Compare the top 5 at a glance

CompanyLicenseWorkers' compLicensed since
Mcmurray & Sons Inc.#249538On file1968
Northcoast Acoustics#463191On file1984
Strombeck Construction And Painting Inc.#632297On file1991
David Kitchen Construction#696963Exempt or none on file1994
Jnm Construction LLC#1007718On file2015

Humboldt County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 7 active C-2 insulation and acoustical licenses in Humboldt County, 5 of them registered in Eureka. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Eureka license has been held 34 years, and the longest-standing one dates to 1968. 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: 4 of Eureka's 5 licenses (80.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 7 of the county's 7 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 Eureka: common questions

How many licensed insulation contractors are there in Eureka?

5 active C-2 insulation and acoustical licenses are registered in Eureka, out of 7 across Humboldt County. 5 Eureka-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. 5 active C-2 insulation and acoustical licenses are registered in Eureka and 7 across Humboldt County, the longest-standing issued in 1968. 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 4 of Eureka's 5 currently carry. 4 Humboldt County licenses expire within 90 days.

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