Get matched with top furnace / forced air heating system install or replace pros in Manchester, 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."

"Doug came out in the middle of a snow storm to fix my Furnace after not having heat for a few days.  As always, Doug was very professional, honest, and performed great work.  He was very meticulous taking apart my heating system and made sure everything was in working order before he left.   I would definitely use him again!
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"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."

"The technician was extremely thorough. Replace the thermostat batteries and furnace filter (I provided the parts), checked for any carbon monoxide leaks, checked the condition of furnace components, and found some bare wires that he taped up."

"Mr. Dean was very professional and knowledgeable. He worked efficiently and didn't leave a speck of dirt behind. He went over the new furnace and central air system with me before leaving, making sure I was familiar with the new system operations. I recommend this owner operator company with high regards. Thank you!"

"We were very pleased with the installation and operation of the ac/ furnace. Very professional and have recommended them."

"Excellent service by MarKool. First it is a small company so when you call them you talk directly to the person doing the work. Second they are highly responsive. Third at the home they are very personable and answer all questions in detail. Fourth In fixing my problem they showed they are highly skilled and experienced in HVAC in this case as it pertains to gas furnace operation."

"It was a superb experience. From the visit by Bruce the sales representative to the installation day to the follow-up from Petro, every single person we interacted with was helpful and professional. When Bruce arrived to do the assessment, we spent time going over the heating needs in the house. After a thorough inspection and measurement of the house, we sat down. He showed me a few options, all of which were going to provide good service. I ordered a unit at the end of that meeting. The installation day was just terrific- the entire work crew that showed up were everything I would hope to find: Upbeat, informative, hard-working, focused. The job was finished before end of day as promised. The heater room is now immaculate, with new piping and a new heater. It was like watching a pit crew at a NASCAR race. Everyone had their tasks, they moved carefully but quickly. The materials were all laid out in order, etc. Just a totally professional approach to their work. The crew boss answered any questions I had. The follow-up for a normal inspection of the furnace chimney was scheduled the day after the installation. I’ve gotten calls to insure we are satisfied with the work. Satisfied barely covers it- I am pleased to write this kind of review. Without hesitation I will recommend Petro to friends and family throughout the Philly area. Peter A. Elkins Park"

"Replaced a gas boiler and installed a new hot water heater. Andy did an excellent job. He was prompt and very knowledgeable. Worked a very long day to restore heat and hot water in the middle of winter."

"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."