RESIDENTIAL · FEBRUARY 2026
How to Choose the Right HVAC Contractor for Your Phoenix Home
A bad contractor choice costs thousands in unnecessary repairs or poor installations. Here's how to spot a trustworthy HVAC company before you sign.
Most important rule: Never hire a contractor who guarantees a fix before running a diagnostic. A real technician needs 1–2 hours to identify the problem. Contractors who skip diagnostics are either inexperienced or hiding something.
1. Verify License & Insurance
Arizona Licensing (ROC #)
- • Ask for the ROC (Registrar of Contractors) license number
- • Verify it at roc.az.gov (search by name or ROC #)
- • Check for active status and any complaints
- • Residential: ROC 230935, Commercial: ROC 328927 (Sorensen's licenses)
Liability Insurance
- • Ask for a certificate of liability insurance ($300k–$1M minimum)
- • Verify directly with the insurance agent (don't trust a PDF they send)
- • Uninsured contractors = you're liable for damage
2. Check Their Track Record
Google Reviews
Look for 4.5+ stars with 50+ reviews. Read recent reviews (not just the newest).
Yelp & Facebook
Consistency across platforms. Fake reviews are obvious—watch for generic praise.
Years in Business
5+ years is ideal. Newer contractors can be good, but longevity = stability.
BBB Rating
BBB A+ is best. BBB tracks complaints & resolutions.
3. Understand Warranty & Pricing
Parts Warranty
Standard: 1–2 years (manufacturer warranty)
Extended: 5–10 years (reputable contractors offer this)
Red flag: No warranty = contractor doesn't stand behind work
Labor Warranty
Repair work: 30–90 days is standard
Installation: 1–2 years is industry standard
What it covers: If the same problem occurs, they fix it free
Getting Accurate Quotes
- ✓ Get 2–3 quotes for comparison
- ✓ Ensure quotes are itemized (parts, labor, permits)
- ✓ Same equipment quoted (don't compare a $3k quote for Trane to a $2k quote for Goodman)
- ✗ Avoid the lowest bidder—cheap often means cutting corners
Red Flags (Avoid These)
No license number or refuses to provide ROC
No physical office address (work-from-home only)
No proof of liability insurance
Guarantees a repair without a diagnostic ($200+ charge)
Pressure to replace instead of repair
Quote significantly lower than competitors (bait-and-switch)
Cash only, no receipt
No mention of warranty on parts or labor
Green Flags (These Are Good Signs)
Licensed (ROC #) and insured
5+ years in business, local reputation
Written warranty on parts (5+ years) and labor (1–2 years)
Free diagnostic visit with honest explanation
Transparent pricing with itemized quotes
4.5+ stars on Google with 50+ reviews
Honest: recommends repair when possible vs. replacement
Available for emergency service (24/7 or same-day)
Questions to Ask Before Hiring
Can you provide your ROC # and proof of insurance?
How many years have you been in business?
What's included in your warranty (parts & labor)?
Do you charge for a diagnostic visit? (Most reputable contractors charge $150–$200, waived if you hire them)
Can you provide references from recent customers?
Are you available for emergency service? What's the response time?
Do you handle the permitting, or do I?
Ready to Get Help?
Sorensen is licensed (ROC 230935 & 328927), insured, and has 19+ years in Phoenix. Free diagnostic, transparent pricing.
Schedule Your DiagnosticQuestions about choosing a contractor?
We're happy to explain our process and answer questions.