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

"We have depended on Fred and Son for expert plumbing help for years now. Today it was Joe who did the installation, and we couldn't be happier with his work. Equally important, we appreciate how friendly, considerate, and professional he was throughout his visit. We will continue to have Fred and Joe on speed dial!"

"Jimmy Gusky HVAC is truly as good as it gets. One of our AC units went down and through the warranty company found our way to Jimmy Gusky himself. Although out of their territory, Jimmy was willing to make the extra trip to diagnose the problem. He was very responsive to get our initial service call scheduled and determined the unit needed to be replaced, and we all know these units usually decide to break down only when pushed to the limit in the hottest summer months and we need AC the most. He did the legwork to get the warranty company to honor the recommendation and as you can see from the attached photo put in a much more substantial unit that is doing a fabulous job cooling the home. Add to that he actually had the unit and scheduled the install even before the warranty company approved the swap out. I that isn't one of the greatest examples of outstanding customer service and going above and beyond to exceed expectations, I don't know what is. Big thanks to Jimmy and team for their commitment to excellence!"

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

"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!"

"Very thorough. Explained things so I could make an informed decision as to which heat pump to purchase. Courteous, punctual and competitively priced."

"Same Day Service-Wow! Well, to my surprise, I found a leak under my hot water heater late Saturday evening, 11/28. In a panic, I called three contractors: the first contractor gave me an appointment for Tuesday, 12/1; I’m still waiting to hear from the second contractor; the third contractor sent me an email with instructions to attach pictures of pipes, hot water heater, the surrounding area where the pipes exit, and label specs. All of this for a free estimate! I slept on it and decided to keep searching because I wanted “instant gratification-job done”! Sunday morning, 11/29, I found “Day and Night Plumber, LLC” 8:20a. The receptionist gave me an appointment for 11a. The technician, Mr. Lal Zaua, was on time with his mask and gloves! He introduced himself, and we exchanged greetings, then went to the basement. He diagnosed the problem. He explained the types of water heaters and gave me pricing, which included a discount. I asked him if he could do it today? He responded yes and “went to work”! To cut down on foot traffic and less contact [because of COVID-19], he always used the back door. When completed, he tested the water, explained the temp controls, and where to turn the water off in case of an emergency. Everything was complete, and he departed at 3p. I am perfectly satisfied! Mr. Lal Zaua was responsive to my needs, treated me and my home with respect, and made sure that I understood everything before he started the job. Thank you so much!"

"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!"

"This company was prompt, gave us a reasonable price, and the system is working very well. We give them an excellent rating for their service, and would recommend them to anyone who needs HVAC repair or replacement."

"They replaced my leaking Poly water line from the street to the house with a new copper line. They tried to pull the new line through but were unsuccessful so they eventually had to trench through my yard to install the new copper line. In order to do this, they did have to cut through my concrete driveway which I had to get patched. After some adjustments were made with the new water pressure valve the system works great."

"Fantastic company. We had a water heater installed. The installer was fantastic. He was on time, professional and extremely knowledgeable. We will use them again. If I could give them 10 stars I would.."