Phoenix, Arizona Hvac Contractor Guide
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Quantum Climate Control Services

Updated 2026-09-04 · 3,826 reviewed · 517 listed · Scored from 22 Google reviews · How we rank ›

5.0(22) 72 low data composite score See reviews on Google ✓ Google-verified
Commercial HVACAC Repair & InstallationMaintenance Plans & Tune-Ups
Quantum Climate Control Services
Services
Commercial HVAC, AC Repair & Installation, Maintenance Plans & Tune-Ups
Reviews
22
Ranking
#120 in Commercial HVAC
Best for
Homeowners seeking honest pricing after a high quote elsewhere.

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?

Kevin stands out for straight talk: reviewers consistently report he caught overcharging from competitors, diagnosed problems others missed, and charged fairly for work done. He arrives on time, explains options without pressure, and handles everything from single repairs to full system installs, often beating his own quoted timelines.

Based on limited recent reviews, so treat this as low-confidence.

Praised for
  • honest diagnosis and pricing
  • responsive and punctual
  • knowledgeable technician
  • avoids unnecessary upsells
punctualfair-pricingskilled-techniciansresponsivehonest-diagnosisclean-workquality-installation
Best for: Homeowners seeking honest pricing after a high quote elsewhere.

What stands out?

  • owner-operated by Kevin Konnis
  • Bosch ABC Contractor certification
  • catches problems competitors miss
  • competitive pricing on full replacements

Worth knowing

  • Owner Kevin Konnis performs work personally
  • Bosch IDS Inverter units installed in under 8 hours
  • Offers second opinions on existing systems
  • Provides options without hard sell
  • Responds after 5pm for appointments

What reviews say by service

AC Repair & Installation
Fast, thorough installs (full replacements under 8 hours); catches missed diagnoses from competitors.
Commercial HVAC
Light commercial equipment servicing praised for honesty and efficiency.
Maintenance Plans & Tune-Ups
Long-term service relationships described; responsive to urgent repairs after hours.

How it compares

  • Rated 5 against a 4.66 average across the 194 commercial hvac businesses listed here.
  • Has more Google reviews than 46% of the businesses in this directory.

How the score was calculated

Ranking Method
Star rating 89
Review volume 59
Review recency 100
Review sentiment 65
Profile completeness 50
Verification 30

Rating breakdown

5
22
4
0
3
0
2
0
1
0

Frequently asked questions

Will Kevin provide a second opinion on my current system?
Yes. The business offers second opinions on HVAC systems, and reviewers report Kevin often finds solutions competitors missed or confirms whether recommendations from other companies are actually needed.
Can he work around my schedule?
Yes. Reviewers note Kevin is responsive and willing to schedule after 5pm if needed. He also completes work often ahead of his quoted timeline.

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Last updated 2026-09-04