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

"As always, National Water does a great job for me.  Dave and his company have been the sole water support for my home since we built and moved in Aug. 2003.  They are incredibly responsive - for example, our hot water heater went out at 11pm on a very cold winter night back in 2005.  I called the emergency line, expecting to leave a message.  Not only did I get an answer, but they were out the very next morning to resolve the problem.  Another time, we were out of town, and our water stopped working over the weekend.  We had a house guest at our home, we called, and on Sunday afternoon National Water was there!

Besides emergency issues, Dave and his team provide excellent maintenance services.  We are on well water, which in our case has created a few issues:  Poor water pressure, hard water and after storms, dirty water from mud and sand.  National Water has put on systems to our water to resolve all three of these issues.  They maintain it annually and are available for any problems. 

National Water, several years back replaced our hot water heater to a much more energy efficient system that never runs out of hot water! 

As I stated previously, Dave and his team in our opinion are the only water team to work with in this area!"

"This was a last second thing. Our hot water heater died on us. Left him a message on Tuesday afternoon. He showed up first thing next morning. Right on time. Discussed the job and he gave me a estimate with a small window. And he said he could have me back with hot water in a few hours. Sure enough less then 3 hours later I’m back running. Very good and clean job. Very professional with all aspects of the job which was nice. Best part of it all when it’s time to pay his his price was barely over the low end of his estimate. Everyone else would most likely been barely under the top end of their estimate. So a very good clean job done as a rush for a good price."

"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."

"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"

"They did a great job replacing my water tank. They were excellent & o highly recommend them for any project."

"Dave not only fixed the problem, he came out within two days and despite having to travel to obtain a needed part, he did the job same day. He went above what I expected in customer service in writing a specialized receipt that I requested and delivering it in person. He did every thing with the customer in mind and an incredibly nice guy!"

"Their service is expensive, but they are very responsive, efficient, and thorough. The plumber who came also taught me a great deal about how to prevent future problems. Overall, I was very pleased with their service."

Blue Dot is a trusted name that provides heating, air conditioning, indoor air quality, and efficient attic systems. Our courteous HVAC technicians are available 24/7 to provide you with expert service and repair. Our Comfort Advisors are ready to help you make the most effective installation or replacement decisions based on your homes comfort needs. We are licensed and insured. Estimates always provided before work begins. Major credit cards accepted. We offer 100% financing with approved credit. We specialize in residential and commercial heating and cooling needs.\n

"F. H. Furr did the tasks I requested. Two tasks required the lighting be replaced."

"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"