Best Heating & Air Conditioning/HVAC in Phoenix, AZ

These guys are great!  No hassle.  Low charge for service calls - I forget if it is $40 or $60, but either way, it's a good deal for an honest diagnosis.

Amazing company!! Keola, Brennan, Devan, and one other tech (didn't get his name, sorry!) all did phenomenal jobs when they came out to install our new unit and cleaned our ducts and vents. Everyone was thorough, highly efficient, accommodating, very professional and honest.  They had everything timed perfectly which was quite impressive lol Communication was made quick and easy thanks to Julia and Nicole.  They answered all of our questions, addressed all of our concerns and were able to schedule us quickly.  We can't say enough good things about this company.  They are our go-to AC company and would not recommend anyone else.  Thank you guys!

As a Real Estate agent for almost 40 years I've used several AC companies over the years.  But now I think I found my favorite go to for AC service!   Honest and fair!

Our  air conditioner was making horrible noises, and it turns out the condensor fan motor bearings were shot. Their team came out promptly and fixed it for a very reasonable cost.
Robin and John were really gracious and handled our calls personally. Terry was the service manager- neat and clean, which i really appreciate.
I would highly recommend them.

Benny and Alfred arrive on time and complete the job efficiently. They are kind, understanding, and very skilled. I've used them a couple of times. Highly recommend.

Trae and Mark did a fantastic job replacing our 4 ton unit located on our roof.  They were prompt and professional.  Mark set the expectation and both he and Trae more than delivered.  On top of that, their prices were very competetive!!  We HIGHLY recommend Top Tier to anyone in the market for a new AC/heat pump.

We had to have some lights replaced at our business. They were reasonable and quick to get our estimate. Also did a good job communicating when they were able to get the replacements and scheduling the install. We had a couple of hiccups along the way, but they were great to work with.

These guys are great.  Labor Day weekend issues and they really came through.  I highly recommend!

Ben came out to check our HVAC in a home we just purchased.  He was honest, knowledgeable, and didn't try and rip us off like other companies we had out.  I would definitely refer this company.

Fantastic service.  I contacted Mike to come take a look at my unit.  He was in the area doing another service call and made a pit stop at my home and got me squared away!

My ac stopped blowing air into the house last night but I could hear the unit running on the roof.

Searched on yelp for good services, saw Clark within .6 miles from me and 5 star service.

Called him and he was at my house within 15 minutes! Very friendly and went right to work, came back down after 20 minutes or so; explained my control board is fried would be $400 repair to fix cooling/heating. I was concerned with the unexpected bill, so he said he could bypass it to allow the cooling to work but the heating won't work, so I'll need to get it fixed before winter.

He bypassed it, wrote me a receipt and gave me his business card and magnet to replace the board when I can afford it. I payed $85 to fix my ac today, a regular service check is $55 but if he does any repair that's free, and you just get charged for the repair.

I live alone and have no clue about ac units, so he answered all my questions and explained to me the problem and how a unit should work. Was very patient and understanding.

Will be using him for all my service needs from now on! Thank you!

i left this co my number on a est for retainer wall. They never contact at all. I wouldn't recommend them now..How disappointed

We have our RV located in an RV park up in Pine, AZ.
Last June(2018), we had trouble with our AC unit and after calling around to different RV repair/service companies we were told they were booked out 2 weeks in advance and one RV repairman near Payson told us Pine was too far to come to work on an RV... Really ?
 So I called North Mechanical and they said Yes, not only will we come out the next day but we're certified for Dometic service. (Dometic is a common brand of RV AC units and refrigerators etc).
 The guy that came was on time, very polite and all around good guy and had our issues addressed quickly.
Tuesday 11/13/18 we arrived in Pine to find our propane regulator leaking. I found a regulator at a Payson hardware store and went home and installed it and when I turned the gas back on it began spewing propane out of the vent on the regulator. I thought I had used improper fittings after talking to just about every hardware, propane parts places, RV repair people who were as usual booked solid. Everyone had a different opinion as to why the regulator was doing what it was doing. Now I was confused and compressed highly flammable gas is nothing to mess with so I once again contacted North Mechanical, explained my situation and also I had no heat and couldn't use our cook stove. Night time lows were 20 degrees in Pine and it was a long cold night but Darin North juggled schedules and had a tech out to us that next day.
Again, problem quickly solved, another great tech who was very polite, professional and right on time.
We have heat and can cook again thanks to North mechanical.
Good Job !!!!

I would recommend caution when using Merlin for your AC needs. In fairness, my experience may have been an isolated one, but the technician that came out to service my AC that had gone out on a day that reach 112 degrees, could NOT diagnose the problem. She proceeded to describe how she was certain the fan was burned out, but could not be sure about the compressor, and would only know after she replaced the fan. The story I got was that this could be a lengthy trial and error of fixes that could end up needing to replace the entire unit. That is what she recommended and quoted me between 11-14k to replace?  (The unit was 8-9 years old and she said that is about all you can expect?)  I was uncomfortable and decided to get a second opinion. CW AC in Scottsdale was recommended so I invited them out. Within 15 minutes they diagnoses a bad part in the ac unit itself. The replaced it on the spot and we're out the door for $350. (They also shared my unit appeared to have a good 5-7 years of life left and recommended a service, which I have now scheduled with them)  Be cautious with Merlin. I felt they were trying to take advantage of a very bad situation to significantly overcharge and sell me something that was absolutely not needed. This service call to fix the problem become a Sales job given the vulnerable situation (I have a large dog that was struggling with the heat and had to get this fixed?)

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