Get matched with top tankless water heater repair pros in Marriottsville, MD

"Saved by Ehrhardt Brothers Quality Plumbing (a.k.a ColumbiaPlumber)! (West of Baltimore) Our gas water-heater failed! It’s 30° outside! (Mar 2026). It was leaking, so we shut off the gas, the pilot, and the water inlet, to lessen damage if it burst. Ehrhardt offered a price based on our descriptions and photos, of course with caveats for anything unexpected. A water-heater costs a pretty-penny, but less than we expected. A fair price. They came the next morning, and had the water heater replaced in 90min. Impressive. But the manufacturer sent a unit with a bad pilot! Ehrhardt returned immediately and in 30min, they figured it out. They had a replacement part over-nighted. The next morning, in 30min, done. Hot water. AAAAAHHH :-) The problem was the manufacturer’s fault, and Ehrhardt handled it flawlessly: Excellent communication by Ehrhardt, priority attention to our problem, no excuses, just fast resolution. Great service staff. Perfect! "

"They did a really great job. Very professional very personable."

"Pitless adapter replacement."

"Roto Rooter did an awesome job replacing my main line. They worked all day and night to get the job done. Quality work at a great price. Again a huge thank you to Roland, Brandon, Wayne, Umasis, Dillion, Cliff, Damon, and Thomas. Awesome job ! Tight spot and a deep trench. Happy Holidays ! Hope you get some rest."

"I highly and wholeheartedly recommend Absolute Plumbing. These guys are top-notch. They came to my rescue after a pipe in my old house burst. Not only did they come right away for an instant fix, but they came back for a full pipe replacement (my request). These guys are skilled, smart, knowledgeable, and personable. I’m a customer for life."

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"The plumbers were friendly, professional and on time. They performed the job in a timely fashion, cleaned up and were very thorough. I would highly recommend them to others."

"The project task was completed"

Award Winning HVAC, Electrical, & Plumbing Contractor\nOur commitment to training the best team of licensed HVAC and Plumbing technicians and electricians possible and dedicated to outstanding customer service has contributed to our growth and success\n\n“What do our customers want?” It's a question that drives the way we do business every day. We strive to be more than just an HVAC and electrical contractor—our goal is to improve people's lives through better comfort, enhanced efficiency, and greater reliability. We are proudly setting new standards in the Maryland HVAC and electrical market one home at a time! Consider the many reasons why your neighbors love working with GAC.