1. Master Plumbing & Mechanical

1. Master Plumbing & Mechanical

0

Gaithersburg, MD

Master Plumbing & Mechanical

4.1 (28 reviews)
Closed 7:30 am - 4:00 pm

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Plumbing inspection

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Review Highlights - Master Plumbing & Mechanical

. Master also goes the extra mile --- in January 2013, we had a severe flood in our house causing water to rain down into the living room , kitchen and basement

Mentioned in 2 reviews

Read more highlights

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The Drain Guys

The Drain Guys

4.4
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First time customer here, and The Drain Guys will definitely be my first call for future plumbing…read morework. From my first interactions I was impressed with the customer service. I solicited quotes from three companies to reline my 80+ year-old sewer line. One never delivered; Second quoted but was near impossible to get questions answered regarding the quote. Drain Guys quoted on the spot, and was extremely responsive regarding follow-up questions. The CIPP liner process is technically complex, and the team experienced some unforeseen complications. However, the skill, positive attitude, and perseverance of every team member when things got tough truly impressed me. The team worked very hard over several days, overcame major obstacles, and ultimately delivered a drain line that will hopefully last another 80 years. Despite the challenges, I never doubted I was in good hands with The Drain Guys and I would absolutely call them again. Special thanks to Adrian, Kevon, Oliver, Johnny, and Jay -- I appreciate you all! Chris

I submitted a project request for clanging pipes through Yelp and a rep from the drain guys was the…read morefirst to respond within 2 minutes. They were able to come out first thing the following morning to take a look at the situation, turned the water valves all the way on, and sent me a detailed quote while they were still there (unfortunately they initially sent it to a wrong number so someone has my personal data :/ ). Pricing was on the higher end of what I expected, and I was planning to get estimates from other companies that responded on Yelp to compare, so I let them know I would be in contact. Later that evening, I went back downstairs and noticed a leak coming from the main water valve, which was not leaking prior to the drain guys' visit. I immediately sent a message with a video via yelp, and the rep responded saying they would contact the plumber and get back to me. It's been almost 2 weeks and I still haven't heard back, which is interesting as they were so quick to respond when I was potentially giving them business, but ghosted me when I held them accountable for causing a leak. Thankfully, a plumber from another company that responded to my yelp project came by and was able to tighten the valve to stop the leaking. Turns out the drain guys plumber had loosened the entire pipe/valve when he turned the knob all the way on, so it was a simple fix but something that they should have looked out for in the moment. Had I waited for the drain guys to come back my basement would have been flooded. I'm utterly disappointed in their lack of accountability and communication, and have no trust in their services if they were able to let me down on such a small matter.

Lyons Plumbing

Lyons Plumbing

4.7
(129 reviews)

What an amazing experience with Mark from Lyons!…read more 5+ stars for service, quality, and value. My husband asked several plumbers for quotes, and Mark was the first to reply, right away. He gave us a fair estimate based on the problem description and scheduled a visit immediately. True to his word, he quoted the exact cost when he arrived. During his first visit, Mark was thorough, answered every question, and explained everything clearly. He fixed half the issue on the spot and returned the next day to finish the job. Because the old valve was badly installed and the surrounding "box" cracked when it was removed, Mark went above and beyond. He replaced the whole box and the new valves, a service that would normally cost an extra$200, but he didn't charge us a cent for it. He tested everything before leaving, and when I mentioned our weak‑pressure shower, he instantly diagnosed the cause, explained what caused it, and showed me the issue, and fixed it at no additional cost. I also asked about the slow draining sink, and Mark handed me a tool to remove the debris and showed me how to access the clog. Again, this was free of charge. Mark assured us that Lyons' labor and parts come with a one‑year warranty and that the components used are built to last. In today's world, it's hard to trust someone you don't know, but Mark made us feel completely comfortable and at ease. We're thrilled with the service and will gladly refer Mark and Lyons to anyone needing plumbing or drainage help! We will no longer be looking for another plumber again.

Honest and selfless with their advise. Price was top going but I was very pleased with their…read morecommunications.

Michael Bonsby HVAC and Plumbing

Michael Bonsby HVAC and Plumbing

2.7
(75 reviews)

A hard-wired smoke detector in our basement had been sounding a false alarm for several days and we…read moreneeded an electrician to replace it. Two technicians came out and quickly took care of the problem. In addition, they installed another detector in our hallway and relocated one in our utility room. They even found another battery-operated detector in our basement that had been previously removed but was continuing to "chirp" and disabled it as well. We also discussed the need to perform a "heavy-up" of our electrical panel and was given a quote . We went ahead and set up an appointment to do the work but later decided to get additional quotes before making a commitment, and so cancelled the appointment. Overall, we were favorably impressed by the two technicians, Darwin and Robert, who handled our smoke detector issues. They arrived in good time, got right to work, were friendly, respectful, knowledgeable, and efficient. We were entirely satisfied with the work performed.

I unfortunately had the WORST experience with this company. Of course Darnell, the salesman did…read morewhat he was supposed to do. But when they came out to install my unit the next day, the problems began. There were two technicians that came out to my home to do the install. One of them left to get apart at some point in the day and apparently got pulled over by the police and his car was towed. We all know in Virginia that your car doesn't get towed cause your tags are dead. Something else must've been going on. Long story short that day they could not finish the install of my furnace because of the missing technician. However, the air condition was functioning correctly. On Monday they sent out two different technicians to come and address the furnace is installation and when they left, The AC was now not working properly. So Tuesday I had to have another technician come out to troubleshoot the issue with my "new" AC unit. He was there for hours poking around and calling his supervisor and told me that there was a faulty part in my "new" air-conditioning unit. He literally blamed robots. That Led to Wednesday when yet two more technicians came out to install and fix the faulty part of the"new" AC. When they left, the AC was working, but by the end of the night, I found out that my hot water was no longer working. By this point, I was fuming and called yet again to have somebody come out to figure out why the heck my hot water was not on. I got a call the next morning finally from John Bonsby, Who called me to let me know he would be having a plumber And make sure the hot water heater was now functional. I literally felt raped during this transaction. I talked to a supervisor named Liam, who was rude and did not care about the fact that his technicians were not doing their jobs properly. The technician getting arrested, leaving my house house did not leave me feeling very safe Having him in my home. And the repeated repairs on a "new" AC unit were unacceptable. And do you think they offered to just replace a new AC in my home that I paid for. Of course, not. Now I have an AC unit that already has had to have parts replaced. If I had to do it over again, I would not use this company but now I'm stuck with them. Do yourself a favor and pay more to have your unit installed correctly the first time.

Master Plumbing & Mechanical - plumbing - Updated July 2026

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