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Donnelly Heating Air Conditioning

Founded 1998 • With Angi since June 2010


(38) Verified Reviews


We professionally install, service and repair HVAC systems. Give us a call today....

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Verified Reviews

A few reviews for this pro...


After founding some issues on my furnace a month ago, I called Donnelly to check up my furnace, but they cound not find the problem at that time. Somehow the furnace was working OK when the technician checked the furnace. Anyway I paid a service fee ($89) at that time. A month later, my furnace was broken again. The technician from Donnelly diagnosed a mulfunction of mother board and he placed an ...

Description of Work
Furnace repair

Category heating & air conditioning/hvac



Amazing! Tom gave me the best estimate for the work I needed done (he was one of 4 companies I contacted); I received the best service, the best value, and professional and efficient work. I highly recommend this company - and that is an understatement. The work was completed in a timely and efficient manner; I was able to pay in 3 installments. It was scheduled in a matter of weeks; and completed...

Description of Work
I needed 2 HVAC units (electric heat pumps) replaced.

Category heating & air conditioning/hvac



My review should be read in conjunction with the previous customer review. I was the second contractor called in after Donelly did not respond with a price for their diagnosis of a bad control board on the customers office rooftop unit ( RTU) While true that the board was not working, it was my diagnosis that 2 legs of the 3 phase electric delivery were out due to open fuses. A further inspection ...

Description of Work
Diagnosis of commercial rooftop unit

Category heating & air conditioning/hvac



Terrible! the tech they sent over tried to measure 3 phase voltage at the rooftop fuses and didnt know what he was doing! Instead of turning off the power up at the disconnect, he proceeded to our main panel inhouse and knocked 6 workstations offline with a breaker he threw? He then proceeded to tell me our thermostat wasnt developing the required dc voltage the rooftop unit required to work (FAIL...

Description of Work
Rooftop AC unit failed, needed repair

Category heating & air conditioning/hvac

Service Provider Response

This is not our customer, may be another contractor with similar name


Donnelly's men came, they were prepared to do the job and did it in two days. They were a pleasure to have in the house.

Description of Work
Replace 2 air conditioning units.

Category heating & air conditioning/hvac

    Services Offered

    Water Heater, Boilers, Furnaces, Heat Pumps, Air Conditioners Replacements, Repair & Installation.

    Services Not Offered

    Duct cleaning

    General Information
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    Senior Discount
    Emergency Service
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