Markool Heating Cooling Plumbing

Exceptional 4.9(50)
Licensed
  • 29 hires
  • Based in Frederick, MD
  • 10 years in business
  • 12 employees
  • Responds in about 5 minutes
  • Background checked
  • License verified

About Markool Heating Cooling Plumbing

At Markool Heating Cooling Plumbing, we've been providing top-notch Heating, Cooling, and Plumbing services for over six years. Our team of skilled professionals is dedicated to delivering reliable, efficient, and high-quality solutions tailored to your needs. Whether you're looking for a new installation, routine maintenance, or emergency repairs, we have the expertise and commitment to ensure your home or business stays comfortable and functional year-round. We pride ourselves on our customer service, and your satisfaction is our priority. Trust us for all your HVAC and plumbing needs!

Reviews

Thumbtack customerOct 2026

Very personable and helpful!

Thumbtack customerOct 2026

Very professional and technician explained the better options

Thumbtack customerSep 2026

Professional gentlemen but we had no advance communication that to just give us a quote for repairs would cost 625.00 If they had explained that I wouldn’t have wasted their time..

Thumbtack customerSep 2026

Mike was awesome helping with our broken toilet situation! He was really nice and discussed multiple options with us. Thanks again!

Thumbtack customerAug 2026

very professional and detailed. quote was fair, job done fast

Thumbtack customerApr 2026

Quick to respond and fast to get me on their schedule. Installed a new water heater the same day as the estimate. Great work!

Cody M.Feb 2026

Job was done quickly and efficiently. I appreciate your time. Thank you

Jessica M.Jan 2026

Help came almost instantly (within an hour of the request)! Our toilet was leaking due to a crack. The professional had everything needed to stop the leak in their truck on the first visit (shut off valve was broken). We needed a new toilet and we wanted to pick it out, which we did that evening. The same professional came back the next morning to install the toilet.

Roberto E.Aug 2025

I have to say, I am thoroughly impressed and satisfied with my entire experience working with Markool HVAC, and will be recommending them to everyone I know. My project was to replace a 30+ year old Magic-Pak heat pump system in my condo that was failing to keep temp in this heat wave with a brand new unit. Trevor, the technician who performed my estimate and measurements, was able to inform me that not only was my old unit very old, but the return air was not adequately connected to the grille in my house on the initial install, which made the unit even less effective. The staff at each stage of the project was kind and professional, and the technicians arrived and got the new unit installed and return air properly connected very quickly. Very happy with everything so far, and look forward to working with them again in the future.

Services

Markool Heating Cooling Plumbing★ 4.9
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