Thomas E Clark

★★★☆☆ 3.4 / 5 (118)
Emergency Call


: Washington, DC, DC 20008
: (301) 703-9079
: http://www.thomaseclark.com/

Company Overview

Since 1891, our family has proudly operated this business. Our services include plumbing, heating, and air conditioning for homes and small businesses. Our offerings encompass service and remodeling. Our expertise includes gas and electric water heaters, steam boilers, tankless systems, gas furnaces, heat pumps, and water filtration. We also perform carbon monoxide and combustion analysis, air diagnostics, sump pump installation, UV light systems, air cleaners, humidifiers, and water and sewer line replacements. We specialize in drain cleaning, sewer video inspections, duct cleaning, ductless mini-splits, and SpacePak high-velocity HVAC.

Thomas E. Clark began this journey in 1891, establishing the oldest plumbing, heating, and air conditioning service in Washington DC. Now, six generations later, we remain a family-owned business. We adhere to the philosophy that has made us one of the best companies in the area for 120 years. Since our inception, we have lived by the principle, “Treat the customer like a friend, and you gain a customer and a friend for life”. This philosophy remains at the heart of our operations. Give us a call today and see the difference.

Michael Hartman and I are the dedicated owners of Thos. E. Clark. Before taking over the company in 1991, I ran Hartman Plumbing. Having over 40 years of experience in plumbing, I began as an apprentice and advanced through the ranks.

Michael has over 20 years of experience in the heating and air conditioning field. After graduating from Salisbury University in 1990, he also started as an apprentice.

We remain informed about the latest advancements while adhering to the foundational values that have made Thos. E. Clark a well-known name in the Washington DC region.

Business Services

  • Bathtub installation
  • Bathtub repair
  • Drain installation
  • Drain repair
  • Faucet installation
  • Faucet repair
  • Garbage disposal repair
  • Gas line installation
  • Gas line repair
  • Plumbing inspection
  • Plumbing installation or replacement
  • Plumbing repair
  • Sewer installation
  • Sewer repair
  • Shower installation
  • Shower repair
  • Sink installation
  • Sink repair
  • Toilet installation
  • Toilet repair
  • Water heater installation
  • Water heater repair
  • Water pipe installation
  • Water pipe repair

Business Location & Hours



Mon:7:30 AM - 10:00 PM
Tue:7:30 AM - 10:00 PM
Wed:7:30 AM - 10:00 PM
Thu:7:30 AM - 10:00 PM
Fri:7:30 AM - 10:00 PM
Sat:7:30 AM - 10:00 PM
Sun:7:30 AM - 10:00 PM

Recommended Customer Reviews

Nancy D.
★★★★★

Davon and Dee just left. Fantastic service from start to finish. I was in a bind - needed help TODAY. Spoke to Theresa on the phone who really seemed to make the effort to help me out, even though I'm a new customer. Davon and Dee knew what they were doing, were very polite and knowledgeable, worked quickly and efficiently and fixed my problem. Thank you very much. Great to work with this family owned business.

CA T.
★★★★☆

Our basement pipe was leaking over the weekend. Calling a dozen local plumbing companies, Thomas E Clark was the first to have a human answer the phone quickly. They listened to our problem and was very attentive. Being early afternoon on a Sunday during a heatwave, they advised they could help us in the evening after 8. We were grateful they could fit us in their schedule during a heatwave of broken air conditioners. We had to cancel because another plumber returned our call and was able to come to repair in 10 minutes.

Appreciation of a representative to speak with and customer service on the phone!

Bill M.
★★★★★

Our boiler was starting to act up so we decided to seek competitive proposals to replace the unit. Clark was one of several that came to provide an estimate. The estimator, Carlos, was very thorough, knowledgeable, and helpful in my understanding what he proposed to do. After evaluating the proposals from competitors, we selected Thomas Clark to do the work. Carlos and his team arrived at the time promised and did an excellent job removing the old unit and installing a new one made by NTI. It is a pleasure to work with a true professional who was very careful throughout the process to ensure its successful completion.

Laura B.
★★★★★

Cannot say enough about their hard work, dedication and smarts. I recently used them to help locate a ring that had fallen in the toilet and was automatically flushed into the pipes. Their response time was immediate, they devised a tool to catch the ring should it have flown into the street sewer and were incredibly persistent. I will use them again for my home plumbing.

Ruben M.
★☆☆☆☆

I requested a quote to replace both my AC unit and my water heater from this company. During my conversation with the technician, he rudely called me out for interrupting him while correcting him about the status of our chimney liner and the manufacturer warranty of a particular AC unit model. At the end of our argument, he refused to give a quote and he told me that his company is nor for me. Good to know that they are not looking to earn new customers. I will never use this company and I do not recommend them to anyone. I got the jobs done with inspections passed by other company.

Barbara Z.
★★★★★

Our water heater broke on a Saturday and at the suggestion of a neighbor, we called Thomas E Clark Plumbing. From beginning to end, the replacement of the water heater was seamless. The plumber, Raphael, and his helper showed up on time and immediately explained the process to us.
They were knowledgeable, professional, careful and very neat in replacing the water heater. And given that it was a Saturday and COVID, we were delighted that they had the water heater in stock! We could not have been more pleased with the process, from beginning to end!

Karen P.
★★★★★

Wonderful experience both times with Chris and his helper fixing and replacing both toilets. I appreciate their quick response when my toilet was leaking last week. It is nice to have senior citizens well served and the discount is appreciated. Very pleasant and knowledgeable plumbers. I love my two new toilets! My next door neighbors use your company and I decided to follow them!

Will C.
★★★★★

I do not doubt, but am nonetheless mystified, by the number of negative reviews about Thos. E. Clark. In my 14 years in DC, we have had them for both large and small jobs. They are alwys done withe the very highest level of skill and professionalism. I don't know if the pricing is ""higher than it should be"" as I have no means to compare. I do know that I spent 35 years in a very competitive and often reviled business (new car dealer, service and body shop) and delivering consistently proper service requires a staff that is well-trained, committed, customer conscious, experienced and, frankly, well paid. Thos. E. Clark, in our experience, is first-rate.

Cary O.
★★★★★

Fantastic, prompt and affordable. Gene and his assistant were courteous, efficient and worked hard to diagnose problems I was having with sinks, a bathtub and a shower and took care of everything while scrupulously observing COVID-19 protocols. Highly recommend.

Kon K.
★☆☆☆☆

Horrible service. The technician came to repairs leak in utility room.
He told that he fixed.
Few days later the leak happens again, the same tech Ian came back and claimed that it was another issue.
He was doing a very sloppy job, that now I need to hire somebody else.
Very disappointed!

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