A & B MECHANICAL HEATING & AIR CONDITIONING

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What a wonderful experience. We were really nervous because the first company that came out (PlumbLine, reviewed separately) spent only 30 minutes looking at our system, indicated there was nothing they could do, and still charged us $250 for a certification they couldn't do and that we never asked for. The technician from Aand B Mechanical was wonderful and treated my husband with respect (husband has over 40+ years as an electro-mechanical engineer with most of it being in the HVAC business). He not only accepted, and used the Oand M/Service manual my husband provided for the unit, but he spent nearly 2 hours inspecting the system, made just a few minor tweaks, and reported that the system was safe to use and functioning properly. We would definitely recommend and use these folks again and we will make sure to pass along their name to the new owners of our house.

We had used A and B for yearly maintenance for 22 years, maybe why our old furnance lasted 24 years. They worked with us when it started having problems, at first thought the thermostat , then control module. They came out twice and got it going on very cold days and nights. The service techs Derek and Nate, and their boss Dave the owner, were very patient and they diagnosed eventually a problem with the mother board. They could have fixed it, but the smartest thing we thought by then, was a new energy efficient furnace for our difficult to heat tri-level home. They did not talk us into this. Their heating/AC expert Bruce led us through the options so we could make an intelligent decision. We are very happy with the new one which is heating much more evenly, more comfortably, quieter, and easy to adjust. We highly recommend them. The price was in line with what we researched and we wanted a high quality, energy efficient furnace.

With the other company we called when this first started, the technician immediately started saying that everything was wrong with the type of furnace we had and wanted us to buy a new one practically on the spot. This was Applewood, similar to the review I read above. I will review that separately.

Smart, kind and professional every time I need them. I wouldn't hesitate to recommend them. They're the best in the Denver area.

I have used them for 25 years. They are great.

My heating system sounded as if it were about to completely go - as if the motor were on its last legs.  I was able to get an appointment the same day , unusual, given the cold, and time of year.  they were prompt, diagnosed effectively - it was a very minor isue, easy to fix and not expensive.  Once before I called them for help on the same unit, except during the summer for the A/C  I had already called two other companies who had come in, charged me, did not fix the issue and never returned my calls for follow up - i will rate them later.  A & B came in the technician explored every single possibility, again diagnosed correctly and since it did not require any fixing - tjhey never even scharged for the visit.  They are very honest, very good at what they do and I trust them 100%  I highly highly recommend them

Dave and crew did an excellent job.  They were punctual and professional.  Dave made recommendations on the number and locations of heat runs as well as modifications to improve the subfloor ventilation.  The end result was a quality job that significantly improved the warmth of the basement.

A & B has performed my annual service for 6 years and even installed my system. They have been a screw up from the very beginning and now I find them actually cheating me on an annual basis. I would never use this firm and suggest others run the other direction.

Keith, the service man was very polite, prompt, and made sure the air conditioner was working properly. He explained helpful tips to maintain the air conditioner and was proud of the company he worked for. I was real happy about this company.

THIS COMPANY WAS OUTSTANDING. THEY NOT ONLY CAME IMMEDIATELY, BUT THEY GOT US THROUGH, NOT PRESSURING US TO BUY. THEY WERE SO UNDERSTANDING OF US NEEDING HEAT IMMEDIATELY, BECAUSE IT WAS FREEZING, SO THEY CAME IMMEDIATELY AFTER WE CALLED. THEY ALSO DID A TEMPORARY FIX TO GET US THROUGH UNTIL WE COULD PURCHASE A NEW FURNACE. THEY DID SUCH A GREAT JOB THAT THE FURNACE IS STILL WORKING!!!! WE WILL DEFINITELY GO BACK TO THEM. ANY OTHER COMPANY WOULD HAVE TOLD US THAT WE NEEDED TO BUY A NEW FURNACE RIGHT THEN, THEY REALLY TRIED EVERYTHING TO GET THE OLD ONE TO WORK THROUGH THE HOLIDAYS. THEY KNEW WHAT THEY WERE TALKING ABOUT AND DID AN OUTSTANDING JOB.