Your Trusted Plumbing & HVAC Partner in Washington DC: Thomas E Clark

For over 130 years, Thomas E Clark has been the go-to name for reliable plumbing, heating, and air conditioning service in Washington DC. This family-owned business understands the unique needs of homes and businesses in the capital area, from historic row houses to modern commercial buildings. They offer emergency service seven days a week, with experienced master plumbers and HVAC technicians ready to help.

The team at Thomas E Clark Washington DC focuses on both residential and light commercial projects. Whether it’s a clogged drain in a Capitol Hill home or a boiler issue in a downtown office, they have the skills to handle it.

Key Services for Washington DC Homes & Businesses

Thomas E Clark provides a full range of solutions to keep your property comfortable and functional. Their services are grouped to meet common local needs.

• Plumbing Repairs & Installations: Fixing leaks, installing new fixtures, and handling everything from toilets and sinks to water heaters and sewer lines.
• Heating & Cooling Systems: Installing, repairing, and maintaining furnaces, heat pumps, boilers, and high-velocity systems like SpacePak.
• Water Quality & Indoor Air: Adding water filtration, humidifiers, air cleaners, and UV lights for healthier living.
• Emergency & Diagnostic Services: Available from 7:30 AM to 10:00 PM daily for urgent problems, plus sewer video inspections and combustion analysis.

Areas Served: Deep Local Knowledge

Thomas E Clark proudly serves Washington DC and the surrounding communities in Maryland and Virginia. Their long history means they understand the local infrastructure—like the older plumbing in many DC neighborhoods or the specific HVAC demands of our humid summers and cold winters. They know the buildings here.

Company History: A Legacy Since 1891

The story began in 1891 when Thomas E. Clark started the business. Today, six generations later, it remains family-owned and operated. The core philosophy has never changed: treat every customer like a friend. This simple idea has guided them for over 120 years, making them the Washington DC area's oldest plumbing and HVAC contractor.

Leadership with Decades of Experience

The company is owned by Michael Hartman and his uncle. Michael has over 20 years in the HVAC industry, starting as an apprentice after college. His uncle brings more than 40 years of plumbing expertise, having owned Hartman Plumbing before taking over Thomas E Clark in 1991. Both leaders stay updated on new technology while sticking to the time-tested values that built their reputation.

Specialties & Highlights

• Family owned & operated continuously since 1891.
• Master plumbers and highly trained HVAC technicians on staff.
• Uses high-quality parts and equipment for all jobs.
• Offers advanced services like ductless mini-splits and tankless water heaters.
• Provides honest assessments and clear communication.

Why Locals Choose Thomas E Clark Washington DC

Residents and business owners in Washington DC choose Thomas E Clark for their proven reliability and deep roots in the community. They combine generations of knowledge with a genuine commitment to customer care. When you need plumbing or HVAC service from a company that knows DC inside and out, Thomas E Clark is the trusted local choice. Their long-standing presence means they’ve seen it all and can handle any problem with skill and courtesy.