Choosing the right heat pump installer is just as important as choosing the right equipment. Here are five questions every homeowner should ask before signing a contract.
1. Are You TECH Clean California Certified?
This is the most important question for California homeowners. TECH Clean California certification means the contractor can process instant point-of-sale rebates, potentially saving you thousands upfront.
Why it matters: Non-certified contractors can still install heat pumps, but you'll miss out on significant rebates or have to navigate complex paperwork yourself.
2. What is Your CSLB License Number?
Every legitimate HVAC contractor in California must have an active license from the Contractors State License Board (CSLB). Ask for their license number and verify it at cslb.ca.gov.
Look for: Active status, C-20 (HVAC) or C-38 (Refrigeration) classification, and no outstanding complaints.
3. Can You Provide a Detailed Quote with Rebate Breakdown?
A professional installer should provide a written quote that clearly shows:
- Equipment costs
- Labor costs
- Applicable rebates and how they'll be applied
- Your final out-of-pocket cost
Red flag: Vague pricing or unwillingness to put numbers in writing.
4. What Warranty Do You Offer on Labor?
Equipment typically comes with a manufacturer's warranty, but labor warranties vary by installer. The best contractors offer 1-2 years on labor, showing they stand behind their work.
5. Do You Perform a Load Calculation?
Proper sizing is critical for heat pump efficiency. Your installer should perform a Manual J load calculation to determine the right size unit for your home—not just match what you currently have.
Why it matters: An oversized unit wastes energy and money. An undersized unit won't keep you comfortable.
The Bottom Line
A trustworthy installer will welcome these questions. If a contractor seems evasive or pressures you to sign quickly, that's a sign to look elsewhere.
All contractors in our directory are verified for CSLB licensing and TECH certification, so you can start your search with confidence.