Best Air Conditioning Installation Air Conditioning in Phoenix AZ

David did a great job of replacing 3 bathroom exhaust fans
Required him to be creative placing new fans with existing ductwork

Very reputable and professional company for HVAC/building automation. Wide breadth of capabilities. Great follow on service!

I found their service to be exceptional. Very knowledgeable ,thorough and friendly! Ask for Craig, he really knows what he is doing. A real problem solver. I'll recommend them to all my friends.

Rhett, Adam & Oscar made quick clean work replacing my AC unit system! Can't thank them enough!!! Great job

I had a plugged shower and a friend gave me the number for 911 Heating, Cooling & Plumbing. I called them on the Tuesday before Christmas and was given an appointment time for Wednesday afternoon. To my surprise the technician called in the morning and came about 15 minutes later. He was very knowledgeable about the problem and had my drain open in a very short time. I really appreciated the promptmess and skill the technician demostrated. I highly recommend the company and would use them again.

Great Customer Service! Always on time and they're very honest, they've never done work just to bill you, only what's needed. I've used them for over 10 years for everything from annual maintenance to new units.

Thanks for the maintenance call only cost 29.95 we are happy running fast again

It was super easy to setup an appointment and our tech showed up on-time was very informative and friendly. We would for sure call them again with any issues!

If you’re in need of an HVAC company look no further. Jonathan and Sarah at High Efficiency Heating And Cooling are amazing and such a blessing. Can’t say enough great things about their quick response and willingness to come out diagnose, and fix my broken A/C after the first 100 degree day in Phoenix. Highly professional, knowledgeable, exceptional work, prompt, friendly, and most importantly trustworthy. So thankful I was led to this company. Definitely recommend them to anyone with an HVAC need.