
Serving Jefferson, MD and surrounding areas
Approved (Corporate)
In business since 1970
Free estimates
Warranties offered
"Louis was excellent. Solved difficult plumbing problem with skill. Not a clog, was a broken pipe behind a wall and ceiling."



Serving Jefferson, MD and surrounding areas
Approved (Corporate)
In business since 1970
Free estimates
Warranties offered
"Louis was excellent. Solved difficult plumbing problem with skill. Not a clog, was a broken pipe behind a wall and ceiling."

Serving Jefferson, MD and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"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!"
Serving Jefferson, MD and surrounding areas
Approved (Corporate)
In business since 1981
Free estimates
Emergency services offered
"Wonderful. Joe, Nelson, and the entire team did a great job. Polite, friendly, and efficient. Cost-effective too. We will definitely consider using them again for the inevitable kitchen and bathroom remodeling."

Serving Jefferson, MD and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. Order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.





+1

Serving Jefferson, MD and surrounding areas
Free estimates
Emergency services offered
Credit card accepted
"It went well. The install was done in approximately 3 hours; knowledgeable technicians. Our drinking water tastes amazing and resolved hard water problem."





+9

Serving Jefferson, MD and surrounding areas
In business since 2013
Free estimates
Emergency services offered
"If you want a reliable job done safely and at a fair price, Rodney is the person to call."

Serving Jefferson, MD and surrounding areas
In business since 1949
Free estimates
Emergency services offered
"The contractor did a quick but thorough job repairing each electrical outlet and provided advice on how to maintain them properly. The ring doorbell installation was quick and neat. The contractor wore a face mask at all times and we had a completely contact-less visit (including the bill payment - we were able to "sign" via our own devices). This company was a pleasure to work with."





+2

Serving Jefferson, MD and surrounding areas
In business since 2009
Free estimates
Emergency services offered
"Jamie not only fixed the problem but installed another line which insures that we'll never face the same problem again. First-rate job!"





+26

Serving Jefferson, MD and surrounding areas
In business since 1979
Free estimates
Emergency services offered
"They originally installed the water filter system. Service is good so far. The maintenance cost is $300."





+31

Serving Jefferson, MD and surrounding areas
In business since 2019
Free estimates
Emergency services offered
"Woke up this morning to my hvac leaking and contacted Markool. I have never used them before and was in a pinch. They fit me right in this morning and were out at my house within 2 hours. The tech stepped in the door and placed covers for his shoes so he did not track in any dirt which was impressive! The tech was very professional and super friendly. Problem was diagnosed and FIXED within an hour. The price was extremely reasonable to the point I was shocked in a good way (expecting a higher price). Anyways, I will most certainly be a returning customer. Thank you Markool Heating Cooling Plumbing."
From average costs to expert advice, get all the answers you need to get your job done.

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