Best Licensed HVAC Contractors in Fontana, CA

42 HVAC contractors registered in Fontana hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.

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1. 1.Henry Heat And Air Construction Services

   ✓ CSLB License #433607 - look up this number at CSLBInsured - NORGUARD INSURANCE COMPANYBonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   1983

   Expires

   2028-03-31

   Phone

   (909) 762-2732

2. 2.Air Masters Systems Inc.

   ✓ CSLB License #555300 - look up this number at CSLBInsured - EMPLOYERS PREFERRED INSURANCE COMPANYBonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   1989

   Expires

   2026-10-31

   Phone

   (909) 822-5410

3. 3.A Avco Plumbing - Heating - A/c

   ✓ CSLB License #640316 - look up this number at CSLBInsured - SECURITY NATIONAL INSURANCE COMPANYBonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   1992

   Expires

   2028-03-31

   Phone

   (909) 822-8000

4. 4.Albert's Heating Ventilating And Air Conditioning

   ✓ CSLB License #756760 - look up this number at CSLBInsured - NATIONAL FIRE INSURANCE COMPANY OF HARTFORDBonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   1998

   Expires

   2026-12-31

   Phone

   (909) 899-2300

5. 5.A & G Air Conditioning Services

   ✓ CSLB License #807202 - look up this number at CSLBInsured - MARKEL INSURANCE COMPANYBonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   2002

   Expires

   2028-04-30

   Phone

   (909) 350-3737

6. 6.All Fast Air Conditioning & Heating

   ✓ CSLB License #826079 - look up this number at CSLBInsured - CONTINENTAL CASUALTY COMPANYBonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   2003

   Expires

   2027-10-31

   Phone

   (909) 600-8735

7. 7.Mcmillan Water Treatment Inc.

   ✓ CSLB License #844792 - look up this number at CSLBInsured - REPUBLIC INDEMNITY COMPANY OF CALIFORNIABonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   2004

   Expires

   2028-08-31

   Phone

   (909) 428-3760

8. 8.Manzo Heating And Air

   ✓ CSLB License #859825 - look up this number at CSLBInsured - STATE COMPENSATION INSURANCE FUNDBonded - $25,000

   Verified

   August 17, 2026

   Licensed since

   2005

   Expires

   2027-06-30

   Phone

   (951) 288-5292