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Top-Rated Plumbing installers for a remodel or addition in Upper Marlboro - Updated Nov 2026

Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
93
)
Plumbing for a Remodel or Addition - Install

Serving Upper Marlboro, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Great experience. Tawn was excellent - he knew what he was doing, got the sump pump removed, cleaned out the sump, repaired a pipe, then installed a new pump. Very happy, will definitely call Tawn back for any future plumbing needs!"
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+1

Response time11 hrs
5 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Douglas & Son Services
Douglas & Son Services
4.6(
24
)
Plumbing for a Remodel or Addition - Install

Serving Upper Marlboro, MD and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"They are very informed about systems throughout the house and are active educators for their clients for MAINTENANCE and saving money! The family owned business is impressive, as their son is ALREADY a JOURNEYMAN in both plumbing and I believe soon to be HVAC expert as well. They are serious about their knowledge and offerings. - Erin Fussell"
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+6

Response time11 hrs
Response rate100%
1 neighbors recently requested a quote
F.H. Furr Plumbing Heating & Air Conditioning Inc
4.0(
25
)
Plumbing for a Remodel or Addition - Install

Serving Upper Marlboro, MD and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Emergency services offered

"Great! I have used Furr Plumbing many times so I was not surprised that they quickly located and fixed the problem however I was surprised when I received a NO CHARGE INVOICE! Thank you Furr Plumbing!"
15 neighbors recently requested a quote
Recommended by54%of homeowners
Avatar for Eric'S plumbing and drains
Eric'S plumbing and drains
5.0(
28
)
Plumbing for a Remodel or Addition - Install

Serving Upper Marlboro, MD and surrounding areas

Emergency services offered

"Forget Len the Plumber. Use Eric Straus instead. He is efficient, professional, and reasonably priced. Due to a knee replacement, I needed a higher toilet and a grab bar. ASAP. I called Eric in the morning. Everything was done by late afternoon. He purchased the toilet for me and took the old one to the dump. He's friendly. You won't be disappointed in him. He's a gem."
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+3

Recommended by100%of homeowners
Avatar for Miracle Method
Miracle Method
4.5(
174
)
Plumbing for a Remodel or Addition - Install

Serving Upper Marlboro, MD and surrounding areas

In business since 1979

Free estimates

Credit card accepted

"They came out and looked at the tub I wanted refinished and told me it would be an additional $200 for the work. I felt the deal was a gimmick to get the company out to my home and add extra costs for more work done and I didn't really like that, but they worked it out with me anyway and did excellent work."
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+20

Recommended by87%of homeowners
Avatar for 7247 plumbing
7247 plumbing
4.6(
19
)
Plumbing for a Remodel or Addition - Install

Serving Upper Marlboro, MD and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Lee from 7247 Plumbing is an amazing plumber. I have used him for larger jobs like replacing my hot water heater to smaller jobs like replacing faucets and clearing drains. He pays attention to detail, offers fair pricing and is super reliable. I would definitely recommend him to anyone looking for a good plumber."
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Recommended by100%of homeowners
Avatar for Jiffy Plumbing & Heating, Inc.
Jiffy Plumbing & Heating, Inc.
4.3(
1,155
)
Plumbing for a Remodel or Addition - Install

Serving Upper Marlboro, MD and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"The Estimator was very nice and responded quickly to setup the visit and schedule the work for an old DC home with galvanized piping. The 2 installers (one very nice - Chris) did good work and cleaned up well, but didn't communicate the issues that popped up! This was irritating. They left although there were leaks and sewage coming through the kitchen sink when you turned on the bathroom sink etc. The installers claimed someone was scheduled to come the next morning, but that wasn't true because of the communication issues. Also, they promised a plumber would show up on the same day as the stoppage, but they never showed up or called. They apologized the next day, but my elderly mom still couldn't use her bathroom on the 2nd floor and had to go down to the basement to use the restroom for 5 days. They even mentioned that I had to pay for snaking the pipes although we had no blockage until the installers finished their work. The Estimator got an installer/repair tech Chris Hardesty (2nd Chris in the company) to snake and remove the stoppage (for free how nice) and fix all of the remaining issues. He is a great tech!!! He is the reason I gave an overall rating of a B. He was an "A" but the other service averaged to a "B". Thanks Chris!!! If you don't have an older home, then you should be fine, but if you do good luck with finding out promptly."
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+8

Recommended by85%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in Upper Marlboro, MD

Adding bathroom plumbing to a detached garage starts with the basic line installation cost of $900 to $1,300. On top of this base expense, you'll need to budget for each fixture. A toilet costs  $250 to $550, sinks cost $150 to $800, and a shower or bathtub costs $400 to $1,900. The project will also require ventilation, moisture-resistant materials, and possibly electrical work. Remember that these costs reflect only the plumbing aspects—additional construction, finishing, and permitting expenses will apply to complete a functional bathroom space.

While certain aspects of garage renovation might be suitable for DIY enthusiasts, plumbing installation requires professional expertise. Connecting to water and sewer systems demands specialized knowledge and equipment, and improper installation can result in severe water damage, code violations, and potential health hazards. Most municipalities require permits for plumbing modifications, and these often stipulate that licensed professionals must perform work. Consider limiting your involvement to simpler tasks like painting or basic finishing work.

The timeframe for adding plumbing to a detached garage spans one to three days for the actual plumbing work. However, this represents only the active installation period. The complete project timeline must account for planning, obtaining permits (which can take weeks depending on your locality), coordinating multiple contractors if needed, and addressing any unexpected challenges that arise during installation. Weather conditions can also impact excavation and outdoor connection work.

Adding plumbing to a detached garage will likely increase your property taxes. Tax assessors consider plumbing an improvement that enhances property value and functionality. The specific tax impact varies by location and project scope. Converting a garage into living space with plumbing facilities can trigger significant reassessment in many jurisdictions. Before proceeding with your project, consult your local tax assessor's office to understand the potential tax implications and factor this ongoing expense into your decision-making process.

The Upper Marlboro, MD homeowners’ guide to plumbing installations for a remodel or addition

From average costs to expert advice, get all the answers you need to get your job done.