Plumbing, Water Heaters, Toilets, Bathtubs, Sinks & fixtures in Maryland.     Heating, Heat Pumps, Furnaces & Boilers.     Air Conditioning Repair, Air Conditioning Service & Air Energy Efficient AC Systems. Drain Cleaning, Sewer Line, Water Line, Service & Repair.        
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Air Conditioning, Plumbing & Heating
Services in Maryland, Virginia & DC.

Welcome to Thomas E. Clark.
Our promise to the plumbing, heating and air conditioning / ac customer...
We will send only courteous, professional technicians to your home for plumbing, heating and ac / air conditioning repairs. We will give you our professional opinion based on our plumbing, heating and air conditioning knowledge and expertise to provide you with the best possible repair options. We will quote the cost of any repairs for your approval prior to beginning any work. We will work diligently and efficiently with honesty and integrity to provide the most expedient resolution. We will value your time.

Why use Thomas E. Clark for your plumbing, heating and air conditioning / ac needs? 

  • Established in 1891. Do you ever wonder when companies present you with a guarantee whether or not they’ll be around to honor it? We’ve been family owned and operated for 122 years and counting.
  • Experience: Our Plumbers average over 20 years plumbing experience.
  • Quality: We use only the finest plumbing, heating and air conditioning parts and equipment. Our philosophy is that using inferior equipment and material cost us and our customer time and money.
  • Customer service and retention is how this business was built and how we have stayed in business for over 120 years.
  • Continuing education programs for all employees, these include weekly plumbing, heating and air conditioning training sessions to keep our staff educated on all the latest technology. (Our apprentices  are required to attend school 2 evenings a week for 4 or more years.)
  • Association Membership: Member of the Washington Master Plumbers Association, ABC (Associated Builders and Contractors) , ACCA (Air Conditioning Contractors of America) and NCI (National Comfort Institute).
  • Warranty: 2 years on all new installations and 1 year on all repairs. (Unless otherwise noted in writing.)
  • Up Front Pricing: We present you with your plumbing, heating and/or air conditioning options and quote you a price prior to beginning any work.
  • Inspections: We offer whole house plumbing inspections.
  • Service Agreements: We offer annual heating and ac repair service contracts.

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24 Hour Plumbing, Heating & Air Conditioning Response Time

Financing available with approved credit. Click below to apply.
Heating/AC ONLY or Plumbing ONLY

Repair Available.  -  301.608.0550

“I called to schedule and the phone attendant was very courteous. The plumber showed up less than 2 hours later, which was great because it was sort of a plumbing emergency. He was so polite and professional. I showed him the shower; he consulted with his company by phone and proceeded to fix the shower. Then I showed him a gas leak in the basement, he made the repair and was done in 2 hours. I especially liked how he referred to his price book for his prices so I knew he wasn’t just making up the price or taking advantage of the fact it was an emergency. I was relieved.”
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Serving the Maryland cities of Silver Spring, Chevy Chase, Bethesda, Kensington, Wheaton, Glenmont, Rockville, Olney, Gaithersburg, Germantown, Montgomery Village, Springbrook, Paint Branch, Calverton, Laurel, Spencerville, Sandy Spring, Colesville, Aspen Hill, Garrett Park, White Oak, Hillandale, Adelphi, Hyattsville, Greenbelt, Kemp Mill, Takoma Park, University Park, College Park, Hollywood, Beltsville, Bowie, Landover, Lanham, Annapolis, Severna Park, Arnold, Riva, Davidsonville, Crofton, Berwyn Heights, Riverdale, Edmonston, Bladensburg, New Carrolton, Cheverly, Brentwood, Cottage City, Glen Arden, Oakmont, Somerset, Glen Echo, Cabin John and Potomac.

Serving the Washington D.C. cities of Friendship Heights, Tenleytown, Palisades, Van Ness, Cleveland Park, Woodley Park, Georgetown, Mt. Pleasant, Columbia Heights, Adams Morgan, Dupont Circle, Foggy Bottom and Brookland.

Serving the Virginia cities of Tysons Corner, Alexandria, Arlington, Old Town, McLean, Cherrydale, Langley, Rosslyn, Clarendon, Crystal City, Pentagon City and Potomac Yard.

© 1891 - 2012 Thos E. Clark, Inc. | All Rights Reserved Worldwide. Terms of Service
Maryland (MD), District of Columbia (DC) and Virginia (VA) Plumbing, Heating & AC / Air Conditioning Repair Contractor.
Maryland Featured Plumbing, Heating & Air Conditioning / AC Repair Contractor.