Water Heater Installation/Repair in Rockville

“Great experience Vicente gave a great experience job well done I'm an hvac guy didn't cry got the job done drain is draining better than before“

“While I did not have cutting open a ceiling to repair a plumbing pipe on my summer bingo card, I am very happy that Jeff from Heil plumbing was able to come and confidently do the repair. He was very kind and efficient. I will definitely use Heil plumbing again if I need a plumber in the future.“

“Excellent experience from the initial intake call to the installation of my dishwasher. This was done on the same day. Arrived on time, explained everything clearly, and was efficient in getting us set. Happy to recommend and use this service again!“

“I recently had a new sewer line installed and couldn’t be happier with the experience. Honestly, the whole ordeal was stressful (dealing with sewer line issues never is), but this team made me feel at ease from the very first estimate to the final walkthrough. They were honest, transparent, and genuinely cared about getting the job done right, with no upselling or pressure tactics, just straight answers.

The installation itself was handled professionally and efficiently, and they kept me informed at every step. What really stood out was their commitment to standing behind their work 100%. They made sure I was completely satisfied before considering the job finished, and it’s clear they take real pride in their craftsmanship.

By the end of it, I didn’t just feel like a customer, I felt like I’d made friends. I’ve found my plumber for life. If you’re looking for a company that combines honesty, quality work, and genuine care, I can’t recommend them enough.

Special shout out to Katya, Juli, Oliver, and Chris!“

“Leahy Plumbing experts Jim and Gary did a fantastic job repairing leaking pipes and in my home
I would recommend them to people who value their home and appreciate professionalism by the Leahy team.
Jim Jackson, proud customer
Dr J pleased homeowner“

“2026-05-17: Just had to take a moment to share my experience with Donmar Heating, Cooling & Plumbing. From an HVAC service visit, cracks in the heating exchanger were discovered. Because of inflexibility with additional needed services involving the water heater and sump pump, I began obtaining price quotes from other services. Michael W. quickly came out, listened to and addressed ALL of my concerns, assessed the physical situation, and provided a very reasonable quote of proposed services. Michael W. was instrumental in establishing a RELATIONSHIP where trust, integrity, and honesty reside as the foundation. Financing was easy and reasonable. Donmar's customer service was truly exceptional.
Donmar's service technicians, Manuel and Edgardo, were nothing short of awesome!! They paused to listen to me and patiently and thoroughly addressed all of my questions and concerns. From their arrival to setup to installation to cleanup, Manuel and Edgardo worked in synchronicity demonstrating expertise and professionalism! The PWC inspection went very well with comments highlighting the expertise of the worked performed by Donmar. :-)
My wife and I are sincerely looking forward to working with Michael W. and Donmar for meeting all of our heating, cooling, and plumbing needs. :-) :-)“

“These guys are the best! Richard, Irma, Steve, Jeanne, Chris, Shawn, Larry - everyone at RV Carey’s is so nice to work with. Highly recommend!“