How 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.47SCOREMountainside Air Conditioning Repair
Phoenix, AZ · Grade CLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #40Position by Experts Score among all companies we track in this category. of 67 HVAC contractors · 5.0★ from 646 Google reviews
Report card
Percentile vs other HVAC contractors (100 = best)Percentile vs other companies in the category: 70 means better than 70% of them.. Strongest: accountability and track record; weakest: momentum.
Reviews for your job
Customers hired Mountainside Air Conditioning Repair for 8 kinds of job.
Mountainside Air Conditioning Repair for a/c system maintenance
Clear ✕All 51 Google reviews tagged “A/C system maintenance” · showing 20
Had a wonderful experience with George! He was very professional, patient, and took the time to thoroughly check and properly diagnose the issue!
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.
George was very professional and thorough. I appreciated the time he took explaining everything to me, and I am happy that I set up ongoing maintenance with Mountainside Air Conditioning to make sure our system will always be on the up and up.
They care about you and take time to make sure everything is working correctly. Very nice and friendly. Highly recommend them for service or maintenance.
Mountainside is the BEST. They were super quick to come out and figure out what the problem was, the tech was very nice and informative. Best service!
They are always great. They do my house and my dealership. Great crews and great owners. The technician Victor did a really thorough and great job explaining everything. Steve at the office is always top notch. I strongly suggest signing up for their maintenance package. I assure you it will save you thousands of…
I was very impressed with the quality of work and I had a lot of questions and Steve took the time to answer them all
I had a great experience with Mountainside AC during a very stressful AC situation. We had been dealing with an ongoing no-cooling issue and needed another professional diagnosis. Rudy, the GM, was extremely helpful and professional, and Christian, the technician, was excellent. Christian took the time to properly…
We love Mountainside Air! Been using them for 6 years. We messed up and called another company one time and they said we needed $2400 worth of work and we said we will get back to you and called Mountainside and they came out and said our AC was fine!!! So don’t get scammed! Call Mountainside Air! Friendly…
Very polite tech and wonderful service
I cannot say enough about Montainside Air. Same day service and very reasonable rates. I will not change AC companies again. Tom and Steve very knowledgeable and professional. Updated: New AC system installed, and works like a dream and really cut my electric bill. Update: Condensate clogged up and again…
Update (4/02/2026): Cristian from Mountainside Air arrived on time this morning to perform my semiannual HVAC system check up. As in the past, service was excellent. A/C compressor was cleaned off and system operation checked for the upcoming summer season. Highly recommend Mountainside Air! Update…
Great response and efficient, knowledgeable, and friendly professionals.
The total service experience continues after 5/6 years to be exceptional
Albert was my technician and he did a great job. He was polite, professional, and very efficient with the work. He explained everything clearly so I understood what was being done and why. I also appreciated that he never tried to upsell me on anything I didn’t need. He was respectful, clean, and carried himself…
Chris was outstanding and very helpful to us, our dog likes him too! Good job thank you
Love this company! They explain everything, reasonable pricing, great technicians! Highly recommend!!
Mountainside has been quick to respond and send someone out quickly anytime I had AC issues. The tech they sent out (Cristian) was super knowledgeable and polite. I appreciate them not always trying to upsell but always giving the option.
Super nice tech came out and it was very quick. I felt that the assessment was fair and didn’t feel pressured which was really nice. He was also super prompt. I also like that you have a link texted to you that you can track your tech with so you can be ready!
1k$ spent while under warranty. Vague receipt not detailing costs. If I'm spending any money at all I want to see the breakdown. Felt like a car repair ripoff
Price
Bar = middle half of what customers paid · gold mark = category median.
Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| HVAC system repair | 121 | $192–$955 |
| HVAC system maintenance | 108 | $37–$292 |
| A/C system maintenance | 50 | $54–$441 |
| A/C system repair | 47 | $209–$880 |
| Installation | 30 | $1.1k–$2.8k |
| Install AC | 28 | $1.5k–$3.2k |
| Install thermostat | 18 | — |
| Repair HVAC | 14 | $236–$840 |
