HVAC CONTRACTORS · PHOENIX, AZ
Mountainside Air Conditioning Repair logoHow the Experts Score is calculatedEach factor is a percentile (0–100) against the other companies in this category, then weighted:Satisfaction 35%50+17.5Reliability 15%38+5.7Craft & service 20%43+8.6Value 10%55+5.5Momentum 8%28+2.2Track record 7%59+4.1Accountability 5%76+3.8Experts Score= 47Grade C: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.47SCORE

Mountainside Air Conditioning Repair

Better than 40% of HVAC contractors · #40 of 67

5.0★646 Google reviewsGoogle star rating as shown on Google Maps.
4.93★last 12 monthsAverage stars on reviews from the last 12 months only.
1.4%1–2★ in 2 yrs (avg 2%)Share of reviews from the last 24 months that gave 1 or 2 stars.
100%complaints answeredShare of 1–3★ reviews the owner publicly replied to.

Recent priced reviews

★★★★★ Barbara · Edited a week ago

Great service! On time, good communication and reasonable rates. Would highly recommend

Paid $1–200Reasonable priceHVAC system repair
★★★★★ Debbie · Edited a week ago

Mountainside Air installed our 2 new units a year ago and they came out for the first spring maintenance. They cleaned the units, checked out our thermostats and changed the filters in the house all for a very reasonable price. We highly recommend them for your HVAC needs. They are veteran-owned. Just had Cristian…

Paid $200–400Great price
★★★★★ David · a week ago

I have used Mountainside for going on the second year now, and they're always great. Responsive, helpful, and explain everything without trying to upcharge or extort me like the bigger chains in the valley do repeatedly.

Paid $1–200Great priceHVAC system maintenanceA/C system maintenanceInstallation
★ Matt · 2 weeks ago

Mountainside attempted to charge me $490 for a part that is available off the shelf for $125. When I asked management to explain they were not able to provide a credible answer for the extreme markup (because there is not a good answer). While some markup is understandable a 300% markup is ridiculous.

Paid $200–400OverpricedHVAC system maintenance
★★★★★ Alan · 3 weeks ago

Ac unit broke down suddenly, I was able to book an appointment and have my unit fixed the same day for a reasonable price. The technician did a great job getting us back up and running quickly. Very happy with overall service.

Paid $200–400Reasonable priceHVAC system repair
★★★★★ Sara · Edited 3 weeks ago

Routine maintenance turned into a small repair as well. As always excellent service, detailed and thorough all while being friendly! Always recommend!

Paid $400–600Reasonable priceHVAC system repairHVAC system maintenance

vs category

Blue = Mountainside, grey = HVAC contractors average

SatisfactionReliabilityCraftValueMomentumTrackAccountability
This companyCategory average

Rating over time

4.04.55.02024-Q1: 5.00★ (14 reviews)2024-Q2: 5.00★ (50 reviews)2024-Q3: 5.00★ (47 reviews)2024-Q4: 5.00★ (13 reviews)2025-Q1: 5.00★ (9 reviews)2025-Q2: 4.96★ (74 reviews)2025-Q3: 4.90★ (51 reviews)2025-Q4: 4.96★ (27 reviews)2026-Q1: 5.00★ (28 reviews)2026-Q2: 4.91★ (64 reviews)2026-Q3: 4.95★ (79 reviews)2026-Q4: 4.79★ (19 reviews)2024-Q12024-Q42025-Q32026-Q22026-Q4
This companyIndustrydot size = review count

Price

$295-8% vs typical HVAC contractors

Bar = middle half of what customers paid · gold mark = category median.

Great price 42%Reasonable 51%Overpriced 2%Not sure 6%

Score factorsHow the Experts Score is calculatedEach factor is a percentile (0–100) against the other companies in this category, then weighted:Satisfaction 35%50+17.5Reliability 15%38+5.7Craft & service 20%43+8.6Value 10%55+5.5Momentum 8%28+2.2Track record 7%59+4.1Accountability 5%76+3.8Experts Score= 47Grade C: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.

SatisfactionSatisfaction · 35%Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume.Bar = this company’s percentile, tick = category average.
50
ReliabilityReliability · 15%How rarely jobs go badly: share of 1–2★ reviews in the last 24 months (fewer = better).Bar = this company’s percentile, tick = category average.
38
Craft & serviceCraft & service · 20%Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — net praise per review.Bar = this company’s percentile, tick = category average.
43
ValueValue · 10%Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights.Bar = this company’s percentile, tick = category average.
55
MomentumMomentum · 8%Last 12 months vs lifetime average — improving or slipping.Bar = this company’s percentile, tick = category average.
28
Track recordTrack record · 7%Review volume and years with reviews.Bar = this company’s percentile, tick = category average.
59
AccountabilityAccountability · 5%Owner replies to 1–3★ reviews.Bar = this company’s percentile, tick = category average.
76

Praised for

Google highlights · percentile vs peersGoogle review highlights (Quality, Professionalism…): positive minus negative mentions per review, as a percentile vs peers.

Quality
+126 / −0
Professionalism
+135 / −0
Responsiveness
+133 / −0
Punctuality
+129 / −0
Value
+116 / −0

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