Get matched with top tankless water heater repair 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."

"The cracked pipe ended up being between the first and second floor where drain pipes from the upstairs bathrooms came together in a Y-joint. The house is 45 years old and these old plastic pipes eventually crack from flexing, etc. which is exactly what had happened. Fred had to cut 10 inch wide strips in the drywall in the kitchen and bathrooms walls and ceilings to get at the area to replace the leak. He added some rubber sleeves to the new Y-joints to allow for some flexing of the house so this would not happen in the future. When all was done, the repair was $2300 and I had to hire a drywall contractor for another $500 to fix the drywall, but Fred was upfront about the price, the extent of the damage that would have to be done for the repair, and the need to fix the drywall after he left. While it really stinks to have to cough up almost $3K to for a leaking pipe, that's the cost of owning a home build in the 1970's with cheap materials and I was very impressed with the work done by Fred and his same day responsiveness. At least the leak was noticed right away so we did not have any water or mold damage to deal with."

"Kap was great. He fully explained what needed to be done and gave me prices. He and his son came the next morning to begin work. They put the new water heater in and cleaned up everything. We noticed that my outside drain wasn't clearing water so he also snaked that while he was here. He was very professional, polite and organized. I would definitely call him for any future work."

"Mr. Rema arrived on time Sunday morning to update my water heater. He installed an expansion tank, duct work and replacing the piping to the thermostat on the water heater. He did an excellent job and took his time. Mr. Rema also went to the local hardware store twice to pick up the material that was needed. The only reason I didn't give him an A was because he quoted me a price at the beginning and then went done on the price and then tried to go back up to the original quoted price. After talking with him he decided to keep the price at the lower amount that he quoted."

"Fritz B. was my sales rep and he clearly knew what he was doing, including making a few minor recommendations that were in my financial interest. Easy to set up the scope of work. The grew was great, came in and did a great job, took about 6 hours. They even rerouted the exhaust flue for my hot water heater even though they did not replace the heater because the install guy Chris said "they did this dumb". Overall a great experience and I would recommend."

"Mr. Brian Langford made all the arrangements with the installation of our gas hot water heater from Lowe's via McCarthy plumbing. He was extremely helpful,patient, professional and available to answer all questions. Due to his approach to his work, we will be working with both companies in the future. Only concern I have is the warranty between Lowe's and AO Smith Hot water heaters. Once the heater is installed, Lowe's severs ties. If there is a problem with the hot water heater, you cannot return it to Lowe's although it was purchased through them, this is clearly stated on the Hot water heater in bold writing."

"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!"

"Professional and efficient. Chris did an A/C repair on a part under warranty from another company. He quickly coordinated getting the new part through the warranty and completed the repair quickly. Will recommend to others."

"Joe (Franklin Plumbing) was very responsive; courteous; professional and did the job/tasks promptly as requested and promised. I would hire these guys again in a minute !! A very satisfied customer."

"Hello, I am requesting assistance from a licensed plumber/gas fitter for gas service restoration at my property: 1239 Maple Ave. Baltimore, MD 21227 BGE has determined that the prior gas service was abandoned and is now processing the project as a new gas service line and exterior meter installation. BGE will be meeting me on-site on Tuesday, June 9, 2026, at 9:00 AM to review and approve the proposed exterior meter location. I need a licensed plumber/gas fitter who can either attend that BGE site visit or come immediately afterward to evaluate the work required on the customer side of the gas system. The scope of work includes: - Inspecting the existing gas piping to determine whether any portion can be safely reused; - Extending, repairing, or replacing internal gas piping as needed; - Establishing the new customer-side gas connection point for the exterior BGE meter; - Pulling the required gas/plumbing permit; - Performing the required pressure test; - Coordinating the requir"