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Certify HVAC Air Conditioning, Heating and Ventilation

Updated 2026-09-04 · 3,826 reviewed · 517 listed · Scored from 46 Google reviews · How we rank ›

5.0(46) 87 composite score See reviews on Google ✓ Google-verified
AC Repair & Installation24/7 Emergency HVACIndoor Air QualityMaintenance Plans & Tune-UpsHeating & Furnace Services
Certify HVAC Air Conditioning, Heating and Ventilation
Location
Mountain Park Ranch, Phoenix
Services
AC Repair & Installation, 24/7 Emergency HVAC, Indoor Air Quality
Reviews
46
Ranking
#110 in AC Repair & Installation
Best for
Homeowners wanting honest diagnosis, fair pricing, and one technician they can trust long-term.

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?

Ulises and his crew deliver straightforward, honest service across repairs, maintenance, and full system installs. Reviewers consistently praise reasonable pricing relative to competitors, fast response times (including same-day visits), clean work, and willingness to save older units rather than upsell replacements. The family-owned operation earns trust through clear communication and thorough follow-up.

Praised for
  • honest diagnosis and fair pricing
  • quick response and fast service
  • professional and thorough work
  • owner Ulises and team trusted
punctualfair-pricingskilled-technicianshonest-diagnosisfast-responselicensed-professionalclean-workresponsivefriendly-staffquality-installation
Best for: Homeowners wanting honest diagnosis, fair pricing, and one technician they can trust long-term.

What stands out?

  • Owner-operated with honest, no-pressure diagnosis
  • Competitive pricing compared to major chains
  • Same-day repair and install capability

Worth knowing

  • Ulises is the owner and works the jobs himself alongside his son
  • Carries common parts in van for rapid repair
  • Replaced compressor capacitors on older units rather than recommending replacement
  • Mini Split systems installed in one day
  • Heat pump installations and garage AC work
  • Tesla charger installation mentioned (cross-service capability)
  • Provided portable cooling units while new AC unit was on order

What reviews say by service

AC Repair & Installation
Same-day repairs on failed compressors and capacitors; full unit replacements handled with loaner cooling and next-day install
Heating & Furnace Services
Heat pump installation praised for reasonable pricing and professional execution; no negative feedback
Indoor Air Quality
AC drip line clogs resolved with PVC replacement; maintenance work and system checks consistently thorough

How it compares

  • Rated 5 against a 4.69 average across the 457 ac repair & installation businesses listed here.
  • Has more Google reviews than 59% of the businesses in this directory.

How the score was calculated

Ranking Method
Star rating 93
Review volume 73
Review recency 100
Review sentiment 80
Profile completeness 100
Verification 30

Rating breakdown

5
44
4
2
3
0
2
0
1
0

Frequently asked questions

How quickly can Ulises respond to an emergency?
Reviewers report same-day visits and repairs. One customer noted he arrived 'as soon as he finished the job he was on.' Another received a call on the same day their AC failed.
Are mini split systems available, and do they cost extra?
Yes, mini splits are installed. One customer's install cost about half what other contractors quoted, and the equipment and warranties are the same.
What if my old unit isn't worth replacing?
Reviewers report Ulises diagnoses honestly. He replaced a capacitor on one older unit instead of recommending replacement, getting it running the same day.
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Last updated 2026-09-04