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

"I’ve used Holtzople in the past, and it’s been 16 years since they’ve come out to look at my Trane heat pump. They hire good human beings. Corey W. Was out most recent tech, with a total of 12 years experience. Quality employee, great HVAC knowledge, and has the ability to explain a complex system to his audience. Holtzople continues to impress with the caliber of the employees they hold."

"Everyone from Presidential has been friendly and helpful -- great customer service! Glenn came to our home to discuss options to replace our furnace (fuel oil) and AC systems with a heat pump. He immediately understood that we were looking for a heat pump eligible for the new tax credits (unlike another company, who only provided estimates on what they had in stock). He prepared the estimates for 3 different models on site, and he noted that the heat pump eligible for the tax credit would cost about the same as an older model (unlike what the first company told us). We were able to schedule installation quickly, and then the adventures began. Harvey and Andre were here for 12+ hours...because a wire was either never connected at the factory or came loose during shipping. We also had to replace a defective line from our house to the unit. While it was a complicated install (not the fault of Presidential), we rec'd great service from hardworking staff members. Highly recommend!"

"Kamal diagnosed and completely repaired a failure with our upstairs ac/heat pump that was having high/low stage lockouts. Neither the ac or heat pump was working. He replaced the compressor which had died, replaced the TX valve in the attic, which was installed incorrectly by the original installer, flushed the line and checked for leaks, etc. In a quick turnaround time. Kamal communicated every step of his repair and was very honest and responsive. Everything is now working perfectly. This is a complicated system to repair, and the expertise, timeliness and the VERY fair price Kamal gave to us made it a First Class job. Great work!"

"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."

"I was having problems with my air conditioning system and arranged for McCrea Heating & Air Conditioning Services to send a technician to my house during the afternoon of May 1, 2018. On that date a company representative called me to tell me when their air conditioning technician would be arriving and Dwayne, the technician, arrived on time. Dwayne did a comprehensive inspection and assessment of the inside and outside units that comprise my air conditioning system. He patiently and carefully explained to me what he was doing, and what his instruments showed was the status of my air conditioning system. He made some adjustments to my air conditioning system. In addition, at my request he injected a product named A/C Leak Freeze into my air conditioning system. He used this product at my request and not because he was trying to sell me this product. I am very pleased with the level of knowledge and professionalism that Dwayne demonstrated while servicing my air conditioning system. I highly recommend Dwayne and McCrea Heating & Air Conditioning Services to others."

"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!"

"The technician was great. He explained what he was doing as he went along even though it was freezing outside. Checked my entire heating system to find the problem and replaced only the parts that were broken. Got my system back up and running in a little under two hours and was very pleasant and understanding when we asked him many questions and answered everyone so that we understood him. Thank you so much for your professional manner and courteousness. Got my hearing system to stop running in emergency mode and back to normal heat. Thanks"

"The staff was very knowledgeable and friendly. I have a big job of switching from all electric heat, to has supported which will include a new furnace and I will be using Weather Masters!"

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!