Best Heating & Air Conditioning/HVAC in United States

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!

I had the dreaded squeal on my outside unit, of course it's August and 110.  I contacted Aire Serv and they said they could have someone out today, (all the rest said it would be a day or two)...  Raul came and was AWESOME!!!!!  He was super nice and knowledgeable, didn't try to sell me a bunch of stuff, he knew I didn't have a lot of money for the repair and worked with me on the price.  I really felt like he cared about my situation and took care to get me taken care of.  I will certainly be calling again if I need another repair or service.  THANKS SO MUCH YOU GUYS ARE AWESOME!!!!!

We have been using this company over 5 years now. Very professional, knowledgeable, trustworthy employees who show up on time. We'll be using them in the future. Thank you

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.

Returned service request call quickly.  Billy showed up on time and ready to work (important to note since some contractors don't).
Very quickly fixed all the little fixes we had originally called about with time to spare so asked him to look at an electrical issue and found and fixed the problem for us.
Could not recommend more.

Ray replaced the AC unit at the home where I am currently living.  He and his crew did a great job!  Ray kept in touch with me throughout the entire process, and had it fixed fast!  He also installed a programmable thermostat, set up the schedule for me, and explained how everything worked, inside and out. The price was excellent, the service was professional, and everything was done on time.  The best part is, I just got my first electric bill since the replacement, and it was $82 less than the month before!  I would not hesitate to recommend 911 Air Repair for any product or service you might need!

Our AC unit broke in the middle of the night. I called every 24/7 AC repair place I could find, and Cactus Valley was the first to respond to me and able to come out that morning. The tech was very helpful in explaining what was going on and what needed to be done, very professional. I will be calling them for all AC needs!!

Mike was phenomenal! He arrived on time, was very knowledgeable and fixed our small issue within 20 minutes. Even though we have an older air-conditioning system, he did not try to sell us parts that were unnecessary, nor did he try to convince us to replace the unit entirely, like other companies. He is one of the most honest guys I've ever done business with. Give him a call, before you call anyone else! We will never use any other a/c company but Mac's!

Could not answer the phone. Once they did the person (I think fell asleep) as they did not speak for a full five minutes after greeting me, during which I assumed they were looking for a time slot. Once I spoke again the person did not know why I was speaking to them. I asked if they were okay and the answer was they are sleepy and have no availability this week.
Not sure how they have all 5 star ratings if they can't get someone to answer the phone to make an appointment.

Richard is an amazing, honest person which isn't easy to find these days. I'd recommend hiring him for any projects

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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