Get matched with top water heater repair or service pros in Gaithersburg, MD

"Excellent. Two separate teams came; one for AC and Furnace; second for Tankless hot water heater; Minor toilet repair also done at no extra charge, including a follow up service call to install new toilet flush handle, also at no charge."

"On a Friday night I did a wash and when the washing machine drained the downstairs toilet started overflowing. I stopped the wash and shut down the water to the toilet...and immediately went to Angie's to make a list for the next morning. I made calls to many available plumbers the next morning....most went to voice-mail. Fred answered his phone, and even though on a job told me he could come by around 3PM.....at 3pm he arrived with his helper. He explained to us exactly what he needed to do.....we were not surprised as we had this done before....he had to remove the toilet, rather than put the heavy snaking machine on our steep roof. We agreed. He did the work...checked to make sure everything was working and flowing..and replaced the toilet perfectly. He gave us advice as to how to prevent this from happening again. He was kind and sympathetic, knowledgable, thorough, and FAIR. Thank you FRED and Son!
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"Johnny was very professional in performance of the hot water heater installation and helpful in answering all of my questions. Highly recommend the company. Cheers"

"I had to replace a water heater quickly. Gave me a competitive quote with a water heater with desirable specs within a day and scheduled me the day after. Technician was knowledgeable and efficiently performed the work. Water heater performs just fine. Cleaned up workspace and took a few mins to walk through water heater and maintenance after."

"We needed a water heater replacement due to a leak in our existing unit. The company came out promptly after our phone call, provided an estimate, and came back first thing the next morning with a new water heater to install. The owner and staff were patient in answering any questions that we had and did an amazing job cleaning up after they were finished with installation. They went above and beyond to ensure that we were very satisfied with their service. They never made us feel as if they were rushing to complete the job. We would highly recommend them!"

"The repair man was a Burmese guy, Joe, and he did an outstanding job changing the anode bar and removing the sediment from my water heater. This should extend the life of the tank. Joe showed up 10 minutes early and finished promptly. He worked hard and had the necessary supplies and tools. He knew what he was doing. I would glad to use Joe again in the future!"

"Within 24 hours of my posting the need to replace my water heater the work was done - very efficient and easy!"

"Just started working with Markool this summer and they have been fantastic! When I need service, they are so fast and every person we have interacted with has been polite, knowledgeable and personable. We unexpectedly needed to replace our system during a heat wave and they were super. So responsive and quick. I would highly recommend Markool for all of your HVAC needs!"

"Terrific response timing and super friendly. Had to use them on two separate issues with ten days each time they sent a knowledgeable, competent, plumber who made the repair (installing new water line shut offs as well as a new hot water heater) within hours. Highly recommend Mr. Rooter"

"Great -- the plumber arrived within an hour or two of my husband calling and was able to locate the leak and repair it. He also found and repaired an additional issue that we did not even know we had (an attachment to our hot water heater that regulates water pressure needed replacement)."