
Serving Hagerstown, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"Great installers precessional and respectful"





+41


Serving Hagerstown, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"Great installers precessional and respectful"





+41

Serving Hagerstown, MD and surrounding areas
Approved
In business since 1936
Free estimates
Emergency services offered
"The whole house could hear the vibration when our two year old Tran xv20i heat pump was at 67% work load. It seems the issue started from day one it was installed. Tried to reach out the installer but they went under. In June, I called McCrea. Mark Dzbynski came over, carefully checked everything and then concluded that refrigerant was not charged to the correct capacity. He explained that our system line is longer than usually and additional refrigerant is needed to compensate the length. He carefully calculated and addded the correct amount based on the temperate & length. From June and Oct, the vigration never came back. No one can tell when the system is on because it works so quietly. I really appraicate the work done by Mark and his work ethinics. Very pleased!"




Serving Hagerstown, MD and surrounding areas
Approved (Corporate)
In business since 1949
Free estimates
Emergency services offered
"Replaced air conditioning unit. Super nice brought us portable a/c units until installation was completed. Very professional and easy to deal with."





+2
Serving Hagerstown, MD and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"Just started working with Markool this summer and they have been fantastic! When I need service, they are so fast and every person we have interacted with has been polite, knowledgeable and personable. We unexpectedly needed to replace our system during a heat wave and they were super. So responsive and quick. I would highly recommend Markool for all of your HVAC needs!"
Serving Hagerstown, MD and surrounding areas
Approved (Corporate)
In business since 1981
Free estimates
Emergency services offered
"Technician, Jimmy Bevens, was great; Customer Relations dept were non-responsive and the salesman acted and sounded like a used-car salesman on a lemon lot. Hard pressed to use F H Furr in the future."

Serving Hagerstown, MD and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"They put in a new system. They had to take everything existing out. They showed up when they were supposed to and finished in a week. They were clean and efficient. It was not an easy task. They cleaned up after themselves. Very professional. The owner explained everything to us."





+5
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