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Cool Breeze Plumbing
- Fee
- Hvac System
- Competitive
“Called them again last week to come back and look at a thermostat power issue I'd been having, and once again, they were just outstanding to work with.”
Best Plumbers in Gaithersburg, MD
24 contractors listed · 18 in Gaithersburg · 9 open 24/7 · 15 open weekends · 22 rated 4.5+
Data verified October 21, 2026
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Michael Bonsby Hvac
- Research
- Responsive
- Hvac System
“Technician gave me a handful of do-it-yourself maintenance tips about making sure I select the right filters and some easy cleaning steps that I can take care of in between maintenance visits to help my system run more efficiently and last longer.”
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Parker Pearce Service Experts
- Gene
- Check
- Spring
“This latest check up, Gene and Anthony checked everything out, changed the air filter and even checked my H2O heater which Parker Pearce didn't even install!”
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James A. Wheat & Sons
- Eagle
- Toilet
- Explanation
“They figured out a way to fix the pipe without having to remove some of the vintage tile in our bathroom, they were very clean and friendly and did a great job.”
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Maryland Clover Plumbing and Gas
- Diagnosis
- Toilet
- Knowledge
“We haven't heard heard back about an inspection for the newly-installed hot water heater, so would like to know when we should expect that to happen.”
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Pipeworks Plumbing
- Charge
- Estimate
- Furnace
“I appreciated the quick appointment, the quick identification of the source of the problem, the quick solution, the professionalism and very reasonable charge.”
Listed for homeowners in and around Gaithersburg, MD, these 24 companies cover plumbing work. Hours, license claims and free estimate offers come from each company's own website, so confirm them on the phone before you agree to a visit for something already running.
Area overview: Gaithersburg, MD
Of the 24 contractors we list here, 18 are in Gaithersburg itself and 6 come from towns including Rockville (2, 5 mi), Sterling, VA (2, 14 mi) and Ashburn, VA (1, 16 mi). The contractors on this page are rated from 4.2 to 5.0 across 12,045 reviews; 15 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (92%), responsiveness (79%) and quality (75%). 9 are open around the clock; 15 are open on Saturdays and 12 on Sundays. The services the contractors on this page list most often on their websites are plumbing (5), heating (3), indoor air quality (3), cooling (2) and electric (2). 9 show a license on their websites; 2 list staff certifications (LEED and NATE) and 9 have a BBB rating of A or A+. 20 have ten or more years of experience, the longest 76 years. 11 offer emergency call-outs; 11 offer financing or payment plans; 8 give free estimates; 11 are family- or locally-owned and 12 list coupons or special offers. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Which plumbers listed for Gaithersburg take calls at night?
Cover at any hour is claimed by 9 of the 24 plumbing listings here. Before paying a night rate, shut off the main and see whether the trouble stops. If it does, a morning appointment buys you the same repair for less. Confirm the after-hours rate on the phone.
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The Drain Guys
- Wall
- Communication
- Project
“When fixing the leak, he was communicative the whole time and there were no surprises in terms of what they were going to do and where exactly in the walls they had to cut.”
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GAC Services
- Oscar
- Electrical Panel
- Drake
“Being such a large purchase for our family I naturally had follow up questions and I am glad to say that Justin was very amenable to my numerous follow up texts.”
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Master Plumbing & Mechanical
- Toilet
- Project
- Quoting
“I have used Master Plumbers twice and both times the problem was solved quickly and the plumbers were pleasant and honest about how much time work would take and what costs I could expect.”
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United Service Specialists Heating
- Competent
- Work
- Water Heater
“When I called about the status of our installation the young man(whosename Icannotrecall) with whom I talked to was also kind, courteous and very informative.”
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Mallick Plumbing & Heating
- Refrigerator
- Basement
- Gene
“Abbas did a wonderful job in installing my water purification system—he was very conscientious with regard to a work ethic and explained the work completed in non-technical manner.”
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Harvey W Hottel
“They only with with commercial companies, but the person who answered the phone was very helpful and friendly and directed me to Mallick Plumber who were fantastic.”
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Stang Plumbing & Heating
- Bill
- Water Heater
- Work
“In the past, they have troubleshooted complex drain problems until they were fixed with a high degree of dedication to solving the problem permanently.”
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JBI Services
- Office
- Maintenance
- Gas
“Regarding the battery replacement, which is not covered, they gave me plenty of notice from their checks, when it would probably need replaced, so I could budget for it.”
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MPM Plumbing
- Price
- Leaking
- Call
“For the kitchen sink issue, he told me that the Kohler faucet I have is under a lifetime warranty (it came with the house) and that I can contact Kohler for a replacement.”
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Maryland Plumbing & Heating
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KSM
“Kamal is rich”
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H L Harris Plumbing & Heating
“5 Stars”
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Service Force Plumbing
- Clog
- Expertise
- Sump Pump
“Other plumbers wanted to make appointments to come and give me an estimate, but Service Force was able to quote me a price on the phone and came out the next day and replaced the water heater.”
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Clover Contracting: Plumbing
- Office
- Knew
- Happy
“Mason was at my door within a couple hours and did a great job putting our minds at ease that the alarm was probably due to a sensor malfunction or weak batteries.”
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R A Dobson Inc
- Tech
- Home
- Leak
“RA Dobson technicians are highly trained technicians that are personable and will explain the problem(s) and provide multiple solutions verse pushing the most expensive option.”
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Home Air Services
- Tech
- Job
- Heating System
“Had to leave to pick up part, but returned quickly because he had coworkers meet him half way so that I wouldn't have to wait long, as I needed to go to work.”
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John Nugent & Sons
- Faucet
- Generator
- Hvac System
“They were careful, thorough, and comprehensive in addressing and completing a difficult replacement project - - and were very friendly and thoughtful to boot!”
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Hugee Corporation
- Duct
- Maintenance
- Summer
“All of the old equipment was hauled away and the technicians used lots of company provided floor coverings for extra protection making cleanup quick and easy.”
Why these companies made our list
What customers say about contractors in Gaithersburg
- “Blake was a true professional. He explained everything that needed to be done (replaced seal in toilet and replaced shutoff valve), provided an estimate, and performed the work without issue.” — customer of Pipeworks Plumbing
- “Their installation of a hot water heater and utility tub was not only very reasonably priced but also executed efficiently with great attention to detail.” — customer of Maryland Clover Plumbing and Gas
- “Kevin was polite and friendly. He also let me know about other issues that did not involve the need of a plumber and showed me how to adjust the temperature on the hot water heater because it was a apparently set to scalding.” — customer of Master Plumbing & Mechanical
- “They've been professional and prompt. Everyone has been friendly and happy to explain and answer questions.” — customer of Pipeworks Plumbing
Excerpts from public reviews of the contractors listed on this page.
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