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94% Recommended

5 Years In Business

Company Details

  • Verified Licenses

Contact

5304 Unit C Kings Court
Frederick, MD 21703
http://www.markoolhvac.com

Hours

  • Mon: —
  • Tue: —
  • Wed: —
  • Thu: —
  • Fri: —
  • Sat: —
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Achievements

Seal of Approval
Top Rated Professional
Elite Service Professional
One Year With HomeAdvisor

Service Details

  • Residential Work
  • Commercial Work

Areas of Expertise

  • HVAC
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Credit Cards Accepted

Ratings

4.7
16 Verified Reviews
  • 5
    14
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    1

Highly rated for

  • Quality
  • Value
  • Customer Service

Reviews

Write a Review
Showing 11-16 of 16 results
5.0 Michael M. Frederick, MD
3/18/2020

Very good service!

5.0 Barbara W. Boonsboro, MD
2/15/2020

Chris found a warranty that saved us money that three other companies came in and did not notice. Very thankful we found him.

5.0 Andrew H. Hagerstown, MD
1/22/2020

Very professional. I would highly recommend for repair and installation of new systems.

5.0 Albert T. Point Of Rocks, MD
12/7/2019

Markool was super professional, kind, and skillful. A few things really stood out. 1) He did a furnace flue piper install that he could have charged us much more for if he had wanted to take advantage of us - but he was honest and we paid less than we feared. He also went the extra mile helping my wife and I through a warranty claim with the furnace company so that we did not have to pay extra part costs. It was an unexpected need, but he was prepared with the part and worked with the manufacturer to get us covered. He was even able to better a previous repair. 2) On a home humidifier install, he made himself available on short notice, took time to answer our questions, and then showed us how to maintain the equipment ourselves so we wouldn't need to shelve out more for additional contracting work - even from him. Grateful!

5.0 Paul K. Frederick, MD
11/20/2019

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.

5.0 Herbert M. Frederick, MD
9/24/2019

Excellent responsive service

Showing 11-16 of 16 results Showing 0 of 0 results
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Photos

Markool Heating.Cooling.Plumbing

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