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How to Verify if an AC Contractor is Licensed in San Diego

Homeowners who want to install a heating, ventilating, and air-conditioning (HVAC) system or other HVAC works should only hire trained, insured, certified HVAC contractors to comply with HVAC and building guidelines.

Homeowners in California, particularly in the Golden State’s south, can use the following tips for finding a licensed San Diego HVAC contractor for their HVAC needs. The information is also useful for identifying and verifying the credentials of licensed AC contractors in San Diego if a homeowner only needs work on his air-conditioning system. This is particularly important as California law mandates that only licensed contractors can perform home construction work that is worth at least $500.

  1. Ask for an AC contractor’s C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) license from the State of California’s Contractors State License Board (CSLB). In addition to passing two exams and possessing at least four years’ experience and education in HVAC work, a contractor should also pass the FBI’s background check and have a working capital and bond to get the license.
  2. Visit the CSLB’s website to verify the authenticity of a contractor’s C-20 license. Use the contractor’s license number, business name, or personnel name to check his license or complaints against him. The CSLB has an automated phone system at 1-800-321-CSLB (2752) that homeowners can contact.
  3. Use HVAC contractor referrals San Diego to verify if an AC contractor is licensed and also to compare the rates and track record of licensed contractors.
  4. Be wary of contractors who offer their services door-to-door, ask for a 10 percent down or $1,000, whichever amount is less, as initial payment, ask for cash payments, or do not obtain the building permits necessary for the project as they are often unlicensed.

An AC contractor’s license guarantees efficiency of installation or repair work of AC systems as it certifies that the contractor has the necessary and relevant knowledge, skills, and experience. A licensed contractor is likely to comply with HVAC guidelines in installing room or central air-conditioning systems, as well as installing insulation for an air con’s copper pipe. His training enables him to spot and plug air leaks and optimize air flow in the house better than unlicensed contractors.

A properly installed HVAC system can affect a home’s value and more importantly the residents’ health and finances. It will be waste of money if a homeowner in San Diego will not spend a few minutes to verify a local AC contractor’s license.