Homversa

Best Licensed HVAC Contractors in Irwindale, CA

Homversa lists 3 HVAC contractors registered in Irwindale holding current CSLB licenses, matched against the CSLB licensee file as of . All 3 are listed below, ordered by years licensed.

How we chose: We identified 3 HVAC contractors registered in Irwindale. Every one of them holds a current license, checked against the official register. All 3 are listed below. Our methodology

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  1. 1.Stewart Air Systems

    ✓ CSLB License #975647 - look up this number at CSLB (opens in a new window)

    On the CSLB register since 2012, with workers' compensation cover on file and bonded at $25,000.

    Verified
    Registered in
    Irwindale, CA 91706
    Licensed since
    Expires
    2028-08-31
    Phone
    (626) 498-7770

  2. 2.Airtega Inc.

    ✓ CSLB License #1071028 - look up this number at CSLB (opens in a new window)

    On the CSLB register since 2020, with workers' compensation cover on file and bonded at $25,000.

    Verified
    Registered in
    Irwindale, CA 91706
    Licensed since
    Expires
    2026-11-30
    Phone
    (626) 324-7740

  3. 3.Trifecta Mechanical Contractor

    ✓ CSLB License #1082037 - look up this number at CSLB (opens in a new window)

    On the CSLB register since 2021, with workers' compensation cover on file and bonded at $25,000.

    Verified
    Registered in
    Irwindale, CA 91706
    Licensed since
    Expires
    2027-10-31
    Phone
    (909) 260-8317

Compare the top 3 at a glance

Swipe the table sideways for all columns - the company name stays put.

Compare the top 3 Licensed HVAC Contractors in Irwindale, CA
HVAC ContractorLicenseWorkers' compLicensed since
Stewart Air Systems#975647On file2012
Airtega Inc.#1071028On file2020
Trifecta Mechanical Contractor#1082037On file2021

How this page is built

Nobody pays to appear on this page, and position cannot be bought. A company is listed only where the official register showed it holding a current license when we checked on September 4, 2026.

  • Ranked by years licensed.
  • Left off anything expired on the date we checked, or carrying any status other than current.
  • Not published at all until at least 3 HVAC contractors pass that check. At most 10 appear - a cut through the ranking, not a further test.

The full method, including what each register does and does not publish.

Los Angeles County HVAC licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 2,732 active C-20 heating and air conditioning licenses in Los Angeles County, 3 of them registered in Irwindale. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Irwindale license has been held 5 years, and the longest-standing one dates to 2012. California law requires workers' compensation cover for C-20 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 3 of Irwindale's 3 licenses (100.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 2,730 of the county's 2,732 licenses carry the same $25,000 bond California sets by statute. 219 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.

HVAC Contractors in Irwindale: common questions

How many licensed HVAC contractors are there in Irwindale?

3 active C-20 heating and air conditioning licenses are registered in Irwindale, out of 2,732 across Los Angeles County. 3 Irwindale-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 HVAC contractors?

Yes. California licenses contractors by classification, and C-20 is the CSLB classification that authorises this work. 3 active C-20 heating and air conditioning licenses are registered in Irwindale and 2,732 across Los Angeles County, the longest-standing issued in 2012. Only CLEAR, unexpired licenses appear here.

How do I check an HVAC 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-20 licensees and 3 of Irwindale's 3 currently carry. 219 Los Angeles County licenses expire within 90 days.

Why is a company not on this list?

A company appears only when we can match it to a current record in the register this page is verified against - 3 companies passed that match for Irwindale. A credential that is expired or suspended, or a business we cannot conclusively match to a current record, never appears. A listed business that believes its information is wrong can reach us through the contact and corrections page at homversa.com/contact. How current each date is, and what happens when a credential lapses, are explained on our methodology page.

Which nearby cities have verified hvac contractors?

Baldwin Park (12 verified), Duarte (7 verified), Azusa (14 verified), Monrovia (15 verified) and Arcadia (18 verified) each publish their own list, verified separately against the state register, so the counts differ city by city. The links are in the nearby-cities section below.

Other services in Irwindale

HVAC Contractors in nearby cities

Deepest nearby market: Baldwin Park ranks 10 HVAC contractors for this trade within the same area.

All hvac contractors in California

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