Baseline Mechanical LLC
HVAC contractor in Mesa, AZ.
In Baseline Mechanical LLC's own words
Local, family owned, HVAC repair and installation company. Focusing on Commercial Construction, Installs, and commercial maintenance
- Trade
- HVAC contractor
- Business address
- 920 E Isabella Ave #109A, Mesa, AZ 85204
- Telephone
- (602) 819-0050
- Website
- baselinemechanical.com
- Hours
-
- Monday8:00 am - 5:00 pm
- Tuesday8:00 am - 5:00 pm
- Wednesday8:00 am - 5:00 pm
- Thursday8:00 am - 5:00 pm
- Friday8:00 am - 5:00 pm
- SaturdayClosed
- SundayClosed
From the business's Google listing, checked Oct 2026
- Register
- AZ register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.
Google Reviews
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A SPECIAL thanks to Baseline Mechanical, Ken, Jamie & Pedro, for fixing my AC, when I'd been at 92° with my swamp cooler since the humidity went up. 🥵❄️🤗
CAROL R.
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Excellent communication, great service!
oLo B.
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Great Company
Ron E.
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Love this place. Honest and reliable
Jamie R.
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Baseline Mechanical was useless and a waste of time. They wanted to charge me a whole new system for 3,000 dollars and/or clean it out for 1,500 dls. I felt uneasy about the diagnostics as they didn't even seem to know what was happening with the AC. The point is that they wanted to charge me so much money when the diagnosis wasn't even correct. I had another amazing AC guy come and fix it for 1/3rd of the price and was HONEST about what was wrong with it. He fixed it by buying the piece that was not allowing the AC to cool. I WOULD have been OUT 3,000 dollars and plus 1,500 for cleaning it, as neither of these would have solved the problem! I DO NOT Recommend them at all. NOT ETHICAL, NOT HONEST, TRYING TO GET MONEY FROM YOU.
Marcela F.
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Fredrick was great! The poor guy ended up having to drive from Buckeye (our house) all the way to Tempe TWICE for a part. They guy was a trouper and was so nice. We are delighted that our air works. Thank you!
Angelina A.
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I had a thermostat go out in my house. I called Baseline Mechanical and they came out that same afternoon! Fast Service! My thermostat was fixed within 1/2 hour and the service technician Jamie was on point!
William S.
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such a great team, all very friendly and hard working!
Camryn J.
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This is the best HVAC contractor in AZ! The most professional but friendly company I have interacted with in while. Nothing but the best from here!
Camryn L.
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Currently I am in the middle of a commercial project and I can't say enough how great baseline mechanical has been. Would highly redeemed to anyone who wants a job done right.
Braden
About Baseline Mechanical LLC
Commercial and residential HVAC services
Baseline Mechanical LLC focuses on commercial construction, installations, and commercial maintenance. The company says it has been making businesses more comfortable since 2007. It describes its core capabilities as including air conditioning, repair, and maintenance services.
In Mesa, electricity accounts for 76% of the heating fuel used in housing units, according to the American Community Survey. The area has a cooling degree day total of 3812, which is a factor for local climate control needs.
Mesa service ratings
Reviewers note that the company is professional and provides fast service, particularly regarding thermostat repairs and commercial project partnerships. Some users mentioned the company is reliable and honest, while one reviewer expressed dissatisfaction with a diagnostic and pricing estimate for an AC system. It operates from Monday through Friday, between 8:00 am and 5:00 pm.
Local climate and expertise
NOAA normals for Mesa show a mean temperature of 71.8 degrees F. The company specializes in maintaining efficient air conditioning systems to assist with seasonal health and energy costs.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.
More HVAC contractors in Mesa
About Mesa
| Population | 513,656 (2025) |
|---|---|
| County | Maricopa County |
| Heating degree days | 1,307 |
| Most common heating fuel | Electricity |
Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.