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Find Plumbing installers for a remodel or addition in Annapolis Junction

Avatar for Wallace Plumbing
Wallace Plumbing
5.0(
22
)

Serving Annapolis Junction, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Everything went great. They were able to set up an in-home estimate. Derrick is courteous and professional, and was able to get me an estimate quickly, and was even able to accommodate the work the same day, cleaned up after the work, and walked through the features of the installed hardware with me. Very highly recommended, and would definitely call them again for any plumbing work!"
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+14

Recommended by95%of homeowners
Avatar for Remedy Plumbing and Drain Cleaning
Remedy Plumbing and Drain Cleaning
4.8(
70
)

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Everything went well. They were able to come by within the hour, which was great. The tech who came out (not sure his name) was very friendly and professional. Everything went smoothly, much better than some other plumbers I've worked with. I'll hire them again next time I have a clog."
Additional Photos
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3 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Ehrhardt Brothers Quality Plumbing, Inc
Ehrhardt Brothers Quality Plumbing, Inc
4.8(
432
)

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 1992

Warranties offered

Small jobs welcome

"I have had Ehrhardt plumbing for numerous plumbing jobs. The Roman Tub Faucet installation was probably the least successful job but still OK. The tech left and the faucet was on a constant drip/flow. I had to call and have the tech return. He said he needed a replacement part. Since the faucet was one I had ordered online -and from company Ehrhardt does not deal with, I needed to find it. I eventually did. The drip fortunately stopped. I still wanted someone to come and recheck it -- didn't seem to work that great. I was told I would have to pay for the recheck. I was disappointed considering I have been a good loyal customer. I opted not to have him come. Previously they have replaced two hot water heaters. I would still call them because for the most part the service has been satisfactory."
Water Heater
Water Heater
Water Heater
Water Heater
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+40

Recommended by96%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,467
)

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Hello, I am requesting assistance from a licensed plumber/gas fitter for gas service restoration at my property: 1239 Maple Ave. Baltimore, MD 21227 BGE has determined that the prior gas service was abandoned and is now processing the project as a new gas service line and exterior meter installation. BGE will be meeting me on-site on Tuesday, June 9, 2026, at 9:00 AM to review and approve the proposed exterior meter location. I need a licensed plumber/gas fitter who can either attend that BGE site visit or come immediately afterward to evaluate the work required on the customer side of the gas system. The scope of work includes: - Inspecting the existing gas piping to determine whether any portion can be safely reused; - Extending, repairing, or replacing internal gas piping as needed; - Establishing the new customer-side gas connection point for the exterior BGE meter; - Pulling the required gas/plumbing permit; - Performing the required pressure test; - Coordinating the requir"
Horizon Plumber under sink
Horizon Plumber in Kitchen with homeowner
Horizon Plumber crawl space
32 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Millersville Plumbing Inc
Millersville Plumbing Inc
4.7(
257
)

Serving Annapolis Junction, MD and surrounding areas

In business since 1970

Free estimates

Credit card accepted

"They showed up on time and got right to work. The actual installation went okay. They, however, did a very poor job of cleaning up behind themselves. Also, when they refilled the hole they dug it wasn't close to being level with the rest of the yard. Instead there was a very visible large mound of dirt. I contacted them a week or so after having the work done, to discuss a concern, and the person I spoke with completely blew me off and dismissed my concern. That is when they lost any opportunity for repeat business from me."
Recommended by92%of homeowners
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Showing 1-10 of 206
FAQs for plumbing installation for a remodel or addition projects in Annapolis Junction, 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 Annapolis Junction, 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.