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John's Heating, Cooling, and Plumbing

Updated 2026-09-04 · 3,826 reviewed · 517 listed · Scored from 3,416 Google reviews · How we rank ›

4.9(3416) 93 composite score See reviews on Google ✓ Google-verified
24/7 Emergency HVACHeating & Furnace ServicesMaintenance Plans & Tune-UpsAC Repair & Installation
John's Heating, Cooling, and Plumbing
Location
Mesa
Services
24/7 Emergency HVAC, Heating & Furnace Services, Maintenance Plans & Tune-Ups
Reviews
3416
Ranking
#42 in 24/7 Emergency HVAC
Best for
Homeowners wanting honest estimates without pressure and fast emergency repairs across the East Valley.

Business data from Google Business Profile, checked 2026-09-04. Facts from the business's own website were fetched 2026-08-04.

What do customers say?

Technicians arrive on time, diagnose problems honestly without pressure to buy unnecessary work, and finish quickly. Named staff like Kevin, Brandon, Austin, and Zander appear consistently in reviews, credited with professionalism and thorough explanations. One defective part required replacement but was handled without complaint.

Service covers AC repair and replacement, furnace work, heat pump conversions, tankless water heater installation, and annual maintenance. Reviewers note clean job sites and willingness to come the next day for emergencies. Their website lists EPA and NATE certifications plus Trane and SRP Master Heat Pump credentials since 1970.

Praised for
  • honest diagnosis, no unnecessary upselling
  • knowledgeable and efficient technicians
  • punctual arrival and fast completion
  • professional, courteous staff named by reviewers
punctualhonest-diagnosisskilled-techniciansclean-workresponsivefriendly-staffno-showfast-responselicensed-professional
Best for: Homeowners wanting honest estimates without pressure and fast emergency repairs across the East Valley.

What stands out?

  • Honest diagnosis and no upsell pressure
  • Rapid emergency response
  • Named technicians with strong reputations
  • EPA, NATE, and Trane certified

Worth knowing

  • Named technicians repeatedly praised: Kevin, Brandon, Austin, Zander, Derek, Gunnar Parker, Michael Gesbran, Saul, Sergio
  • Heat pump conversions and tankless water heater installations offered
  • Next-day emergency response documented
  • One defective part replacement handled during service

What reviews say by service

AC Repair & Installation
Fast diagnosis, clean work, no unnecessary upsell.
Heating & Furnace Services
Furnace repair offered, but limited review detail on this service specifically.
Maintenance Plans & Tune-Ups
Annual maintenance praised; coil cleaning and thorough service documented.
24/7 Emergency HVAC
Next-day emergency response, quick assessment and completion noted.

How it compares

  • Rated 4.9 against a 4.74 average across the 356 heating & furnace services businesses listed here.
  • Has more Google reviews than 97% of the businesses in this directory.

How the score was calculated

Ranking Method
Star rating 93
Review volume 100
Review recency 100
Review sentiment 80
Profile completeness 100
Verification 30

Rating breakdown

5
3274
4
65
3
15
2
13
1
49

Frequently asked questions

Do you answer emergency calls outside regular hours?
Yes. One reviewer reported an emergency repair the next day; another received same-day service on an urgent AC failure.
Will you recommend work I don't need?
Multiple reviewers praise honest estimates and upfront explanations without pressure for unnecessary parts. Some technicians (Brandon, Kevin) are specifically noted for avoiding upselling.
Can you install a tankless water heater?
Yes. Several reviews mention tankless unit replacement and maintenance, including heat pump and water softener work.
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Last updated 2026-09-04