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Shamrock Heating & Cooling

Updated 2026-08-04 · 3,430 reviewed · 448 listed · Scored from 423 Google reviews · How we rank ›

4.9(423) 93 composite score See reviews on Google ✓ Google-verified Publishes prices
AC Repair & InstallationHeating & Furnace ServicesIndoor Air QualityMaintenance Plans & Tune-Ups
Shamrock Heating & Cooling
Services
AC Repair & Installation, Heating & Furnace Services, Indoor Air Quality
Reviews
423

What recent reviews say

Customers consistently praise Shamrock for punctual, knowledgeable technicians who diagnose and fix issues in a single visit. Named staff like Daniel, Sean, and Matt have built loyalty over years of reliable work, clear communication, and fair pricing.

The business offers same-day appointments with photo bios of incoming technicians, parts inventory on trucks, and complete system checks. Reviewers highlight troubleshooting expertise, drain solutions, and transparent quotes for replacements alongside competitive repair rates.

Praised for
  • on-time and professional
  • skilled troubleshooting and diagnostics
  • named technicians with long-term reliability
  • same-day service and communication
  • reasonable pricing and transparent quoting
punctualfair-pricingskilled-techniciansresponsivehonest-diagnosisquality-installationfriendly-staff
Best for: Homeowners seeking same-day AC or heat pump repair with transparent pricing and experienced named technicians.

Strengths

  • long-established (since 1996)
  • same-day service with technician pre-notification
  • parts on trucks for quick completion
  • recurring customer base over 20 years

Worth knowing

  • Daniel S., Sean, Matt, and Matthew named as reliable technicians
  • same-day appointment availability
  • technician photo bios sent via text before arrival
  • parts inventory on trucks enable first-visit completion
  • high-tech drain clogging solution mentioned as distinct service
  • Daniel credited with 10+ years tenure; family customers cite 20+ year relationship
  • complete system checks performed on repairs

What reviews say by service

AC Repair & Installation
Technicians diagnose and complete AC repairs same day with part availability on trucks; full system replacement handled with transparent quoting.
Heating & Furnace Services
Evaporator cooler and heat pump repairs praised for quick diagnosis and professional execution; maintenance on AC units consistently noted as reliable.
Indoor Air Quality
Website lists air cleaner and air scrubber services; no review text specifically evidences these.
Maintenance Plans & Tune-Ups
39-point precision tune-ups bundled with duct cleaning; Comfort Club membership offers 15% discount on parts and labor for repeat service.

How it compares

  • Rated 4.9 against a 4.7 average across the 391 ac repair & installation businesses listed here.
  • Has more Google reviews than 85% of the businesses in this directory.

How we scored this

Ranking Method
Star rating 93
Review volume 100
Review recency 100
Review sentiment 81
Profile completeness 100
Verification 30

Rating breakdown

5
401
4
7
3
1
2
3
1
11

Common questions

Can I get same-day AC repair?
Yes. A customer called at 9 a.m. and was served the same day, with Shamrock sending a text update and the technician's photo and bio before arrival.
What happens if my AC is completely broken?
Technicians carry parts on their trucks for many common repairs. If a full replacement is needed, Shamrock offers $1000 trade-in credit or no-interest financing through 2027 (installed by August 30, 2026).
Do they service heat pumps and mini splits?
Yes. Their website lists heat pump installation and repair, and mini split installation and repair as core services.

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Collins Comfort Masters
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Most visits go smoothly: technicians arrive on time, diagnose problems quickly, and leave customers happy. Yet a pattern of serious installation issues and aggressive upselling emerges in recent complaints. One customer paid $14,000 for an AC system that lacked basic protections and required extensive rework; another was charged $3,500 for a water heater install that an upselling technician talked an elderly customer into, despite her uncertainty. Named technicians like Paul, Cole, Carlos, and Audrey earn consistent praise for competence and courtesy. The company's core strength lies in repair calls and personable service, but installation quality and sales ethics pose real concerns. Reviewers name specific technicians (Silvano, Edgar B, Richie B, Cirilo, Edgar M on one install; Thomas, George, Jeremy on another) frequently praising their work. Warranty memberships and extended financing are offered. The 1-2 star reviews center on post-sale problems: missing drain traps, surge protection, hard-start kits, home-run ductwork, and stainless steel drain pans that installations lacked, plus aggressive technician upselling tactics that exploit customer knowledge gaps.

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Schiller Heating & Cooling, Inc.
93

Schiller Heating & Cooling, Inc.

4.9(312)✓ Google-verified

Customers consistently experience honest service and skilled work. Technicians like Brandon, Tony, and Jack arrive on time, diagnose problems accurately, and often solve issues the same day. The owner intervenes personally; one recent case involved Brandon diagnosing a defective board, bypassing the fault so cooling worked immediately, then fixing it for under $200 when other shops quoted $1100. Long-term clients and first-timers alike praise fair pricing, thorough explanations, and a willingness to listen to tenant concerns. The business treats repair and maintenance equally well, with reviewers highlighting tune-ups that take time to do right. Over 28 years in operation, Schiller draws praise for supporting local Arizona family business. Even when repairs could have led to a unit replacement sale, technicians found cheaper parts or permanent fixes. Reviewers name specific staff and thank them by name. No complaints appear in recent reviews.

Commercial HVACMaintenance Plans & Tune-Ups
One Hour Air Conditioning & Heating of Scottsdale
90

One Hour Air Conditioning & Heating of Scottsdale

4.8(585)✓ Google-verifiedPublishes prices

Cody Baker, Ruben, and other named technicians consistently earn praise for arriving quickly, diagnosing problems clearly, and treating homes with care. One reviewer noted some techs need more training, but the standout performers make customers comfortable recommending the company to friends and family even after stressful breakdowns. Emergency calls get routed within an hour or two, and staff take time explaining fixes in everyday terms. The $28 monthly membership plan draws interest from repeat customers looking to cut service costs. Setup and cleanup are thorough, with techs leaving homes as they found them.

AC Repair & InstallationHeating & Furnace ServicesMaintenance Plans & Tune-Ups

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Last updated 2026-08-04