Get matched with top furnace / forced air heating system install or replace pros in Clarksburg, MD

"Fantastic! Our electrician Aaron called ahead of time to let me know exactly when he would be arriving. He was extremely polite and professional and explained exactly what he thought we needed in terms of an attic fan as well as a few other non-electrical things we could go to address the upstairs temperature. After giving us the quote he performed the work right on the spot and was done in a couple hours."

"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!"

"Great company! They've been super responsive when we've had questions or concerns, and deliveries are frequent enough that we never have to worry about running out of heating oil."

"McCarthy Services showed up on time, had masks and booties on when entering the house and were very courteous. New Air Conditioning System and Furnace installed. Would highly recommend McCarthy Services."

"From the beginning - Sean was extremely responsive to all of our questions and very flexible with scheduling the service. He installed our new humidifier on the furnace, provided instructions on how to operate it, and offered multiple tips for keeping the system running efficiently. He also offered a very fair price. He was very professional, and we would definitely hire him again!!"

"This write-up is for service performed under the GAC PPMA where they come out every spring and fall to check two heating systems in my house.  My annual cost for the PPMA is $318 - which might seem high for two annual maintenance visits, but I feel is a great value.  For both of the previous fall and current spring visits, my system happened to have issues right before the visits that needed professional service and repair.  Last fall the blower motor failed on my secondary system.  The part was under warranty, but the labor was not covered.  I got a 20% discount for being a PPMA customer, and had a $20 off coupon from GAC mailings.  The repair was complicated requiring GAC to come to the house a total of 3 times to complete the work.  The price never increased from the original labor quote, which I thought was very fair and great service.  Last week, the morning of my spring maintenance visit, there was a fault code on the thermostat for the primary heating system.  I couldn't believe the timing!  GAC arrived, as scheduled, about an hour after I discovered the issue.  This time it turned out to be a module for the blower system.  The service tech had it on hand, and was able to complete the repair at the same time as the routine maintenance check of both systems.  There was no charge for the repair as both the part and labor were covered for the primary system (purchased from GAC).  I am thoroughly impressed by GAC's service, value and professional staff.  I have been doing business with them since the early 2000's and would highly recommend them.
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"Isak was of great help in servicing our 15 y/o forced air and heat pump furnaces. He described every step of the service, taught us how the units work, and where to look for early failure. Isak also helped install and properly program our Nest thermostats so we have an efficiently running house and HVAC system. Would highly recommend to anyone looking for help!"

"I had a high efficacy heat pump system installed by ARS 11/2 ago. I am used to gas furnace so understanding how heat pump works is an education. The mechanic was very patient in explaining how it works and what to look for if there is an issue. Of course this cold season a got an high unexpected bill from the electric company and was baffled because of the amount I spent on this high efficiency unit. They came out looked at and found no issue. They explained this was a very unusual cold season and the unit performed accordingly for sub freezing condition. They did leave a card and said if I see anytjing that look unusual please give them a call asap. The mechanic was very knowledgeable."

"Ward Service, LLC came out and troubleshooted the problem with our furnace. Within an hour or two, the issue was completed. Heat was restored. Great customer service."

"All went very well! They were very responsive to my inquiry. I had anticipated a few days before anyone would come out due to the heatwave we were experiencing, however, to my surprise they came out the very next day as promised. I even had asked for them to install a replacement thermostat which they did as well."