Get matched with top water heater installers and replacers in Potomac, MD

"Fred is very personable and friendly. He returned my call right away, even though I placed it after hours. He replaced one old toilet with a new one he just happened to have in his truck, and it works great even though it's a low flow one. Prices are very reasonable. Fred is my plumber from now on."

"This is the 2nd or 3rd time that we used Jimmy and couldn't have been more pleased. My house felt like a sauna and we were desperate for Jimmy to come over. He was extremely busy however he found time to stop by. We were told that we needed a new unit and by 3:30 the following day, we had a new unit installed. Can't get better service than that!!!"

"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!"

"Bruce from GAC did both the estimate and the work on my home. We had three ceiling light fixtures installed, a fan rewired, an outlet installed and ethernet run. They were extremely professional from start to finish and made the entire process smooth as can be. Would absolutely recommend GAC for electrical service."

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

"Very Good! Arrived same day to assess project needs. Returned next day to install new water heater. Very satisfied with work ethics and clean-up. Would definitely hire again!"

"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 received same-day service. Our serviceman, Fred, did a great job. He was very professional and solved our water heater problem."

"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!"

"The technician was very professional, courteous and knew exactly what needed to be done to replace the backyard water bibb/spigot. He did the replacement successfully and tested for any possible leaks afterwards."