Harold McMahon

Dean A.

AWESOME COMPANY,
AWESOME PEOPLE !
Professional, kind, patient office crew and wonderful group of technical folks that are skilled and knowledgable and patient. Grateful for the care they take in making repairs and spot on in suggesting when and how to replace parts.

I just let them do what they do well...

Rosemary K.

I cannot actually say if McMahon Plumbing provides ""good value for service"" because we never got that far. But I can say...(1) it took 30 hours to get a return call (so, no, they don't ""respond quickly), and (2) when Andrew McMahon, the current owner, drove up our driveway in his large truck, he first ran over the metal edging on our driveway, then backed up into our stone wall. When my partner tried to make light of it by asking, ""Drive much, Andrew?"" He screamed through the window, ""I'm outta here! I don't want your business!"" No mention of repairing the damage. (So, again, no, they aren't ""reliable.""

He damaged our property without even getting out of his truck. Not the kind of company one wants in one's house.

Sam S.

It was a dark and stormy night, and we heard the largest explosion to ever embrace our ears. Our golden bidet had a pressure issue and exploded in half. We immediately called Harold McMahon and too our surprise someone came in a matter of minutes; it was like the plumber had a sixth sense that something was awry. Drenched in a white t-shirt at our front doorstep solely grasping a cast iron pipe in hand, Riley was there. He brought such a calming presence and fixed the problem with his big and strong hands. Needless to say, Riley was a true pleasure to deal with.

Alison B.

Great service and honest people. I appreciate how they follow up and coordinate to get the work done. Extremely reliable.

Jay D.

While writing reviews isn't something I ordinarily do, I wouldn't consider the service we just received as ordinary either. After an unexpected plumbing issue caused us to turn off the water to our house, we called Harold McMahon and Riley responded right away. He was friendly, knowledgeable and pr, and took the time to do the job right. The comfort in knowing that a local company and it's employees truly care sometimes doesn't get recognized enough, but I'm glad that in this instance I'm able to do just that.

Kim R.

We had an emergency plumbing situation in our Montauk house. We called Harold McMahon Plumbing, and they sent Mike over. He was extremely professional, very pleasant, and did an amazing job in record time. We couldn't be more pleased with him! He is our go-to plumber for any future issues, and we have already recommended him to three of our friends. Thank you for a job well done!

Deb C.

I manage a home in East Hampton and did not have hot water. I thought I would have to purchase a new hot water heater. Harold and his associate came out within 1 hour (I called at 3:15), told me I did not need a new hot water heater. I needed a valve from the boiler to the hot water heater since the boiler was off. I didn't need the boiler to also heat my water. Yay, money saved. Thank you for coming out so I could have hot water that night and being very efficient and a pleasure to work with.

Mackie R.

Harold McMahon is the best plumbing companyI've ever dealt with. They have done my annual openings and closings as well as repairs. They have an excellent staff and are always available. In addition, when I had a roof issue, they went out of their way to solve it even though it really became a roof issue, not a plumbing problem. They are outstanding in every way. I would definitely recommend them and would never consider using anyone else.

V W.

Honest, reliable. Return phone calls but not emails and reasonable rates

Chester G.

The folks at McMahon have provided extremely competent, reliable, and responsive service to us for many years. They have performed annual openings and closings of our vacation home, have made improvements such as installing a continuously-draining dehumidifier in the basement, and have quickly repaired problems and emergencies (thankfully few) when they have arisen. We are invariably pleased with the service provided by this family-run business.