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Top-Rated Water main install, replace or repairers in Mount Rainier - Updated Nov 2026

Avatar for The Waterline Group, LLC
The Waterline Group, LLC
4.5(
428
)
Water Main - Install, Replace or Repair

Serving Mount Rainier, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Credit card accepted

"Complete main water replacement on a townhouse. Geary Powell was very accessible and clear on what the work entailed. Work quality and repair team were great. Not sure about the price didn't get additional estimates. Based on HomeAdvisor price range for main replacement the cost was midway between avg high $2500 & above avg, high of $5000."
Response time5 hrs
Recommended by90%of homeowners
Joseph plumbing & drain
4.9(
162
)
Water Main - Install, Replace or Repair

Serving Mount Rainier, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Joseph Plumbing and Drain replaced our aging (21 year old) Rheem water heater with an AO Smith Proline 50 gal model. Kap, the owner of the firm, came out to give us an on-site estimate and a detailed explanation of the work to be performed. He showed up at 9:00 am two days later to do exactly what he had promised. Of the six different proposals that we reviewed, Joseph Plumbing and Drain came out on top. They were neither the lowest nor the highest bid, but in our view, the best bid. We found Kap’s price reasonable, his knowledge comprehensive and his work thoroughly professional. We felt we got a quality water heater and expert installation at a fair price."
Response time6 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Remedy Plumbing and Drain Cleaning
Remedy Plumbing and Drain Cleaning
4.8(
78
)
Water Main - Install, Replace or Repair

Serving Mount Rainier, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Mr. Rema arrived on time Sunday morning to update my water heater. He installed an expansion tank, duct work and replacing the piping to the thermostat on the water heater. He did an excellent job and took his time. Mr. Rema also went to the local hardware store twice to pick up the material that was needed. The only reason I didn't give him an A was because he quoted me a price at the beginning and then went done on the price and then tried to go back up to the original quoted price. After talking with him he decided to keep the price at the lower amount that he quoted."
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10 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
94
)
Water Main - Install, Replace or Repair

Serving Mount Rainier, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Called the main number and the lady I spoke with was very pleasant and easy to work with. Was looking to have a 50 gallon hot water heater installed, 2 drains snaked and a new faucet installed. She booked my appt for the next day. Zam came to the house to provide us the quote and even offered to do half the job then and come back in a few days to do the hot water heater. He was incredibly professional and did a great job on all the work. I highly recommend them and will call them again."
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+1

Response time11 hrs
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Douglas & Son Services
Douglas & Son Services
4.6(
24
)
Water Main - Install, Replace or Repair

Serving Mount Rainier, MD and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"We had an back up in our outside basement stair drain that required emergency service. Douglas Plumbing responded the same day and were able to quickly correct the problem. The tech was professional and knowledgeable. We would definitely use then again!"
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+6

Response time11 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Mid-Atlantic Trenchless
Mid-Atlantic Trenchless
4.0(
223
)
Water Main - Install, Replace or Repair

Serving Mount Rainier, MD and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"From start to finish we were happy with the owner Doug and his crew. They took care of my home and property. Excellent customer service, and skilled technicians. They delivered what was promised without any stress to us. The excavation in the front yard and in the basement was clean and well finished. They took their time and did an excellent job. I will definitely recommend Mid-Atlantic Trenchless to my friends and family!"
At Work
At Work
Trenchless Work
Trenchless Work
Trenchless Work

+6

Response time1 day
Response rate89%
2 neighbors recently requested a quote
Avatar for Orbit Water Solutions
Orbit Water Solutions
4.8(
44
)
Water Main - Install, Replace or Repair

Serving Mount Rainier, MD and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"This review is solely about the installation portion of the Puronics Water Treatment System since it was just installed today. The install team arrived on time, ready to go to work. The location of my main water line was tricky to get to, but they found a great solution to tap into the line via a drop-ceiling access point. They located the Hydronex Water Conditioning Cylinder and Salt Backflush Container exactly where I wanted it. Their work was clean, tight, and very professional. The RO system was backordered, so they explained that they will return within the week to install that portion of the project. They prepped for the RO install by drilling and installing the faucet in my granite countertop. After the install, they explained the whole system to my wife and I and we were up and running with conditioned water. I can't say enough about my experience with Chuck on the initial phone call, Miles who provided the water testing and sold me the system, and Ryan who installed the system. So far, I can't envision any issues that might arise with Orbit Water Solutions since they have provided outstanding service to this point!"
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+9

Recommended by97%of homeowners
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FAQs for water main install, replace or repair projects in Mount Rainier, MD

Most standard homeowners' policies don’t cover water main line replacement costs because this project is considered wear and tear, not sudden damage. Check your declarations page for exclusions and talk with your agent about add-on service-line coverage if you want help footing the bill for your water main line replacement costs.

Yes—hire a licensed plumber any time the job taps into a city-owned line or local codes. Professional plumbers carry the right permits, tools, and insurance, and they know how to avoid costly mistakes that could flood your yard or trigger fines. Pros can also provide expert recommendations on the type of system and materials that will work best for your situation, and they can guide you on best practices for ongoing maintenance.

The Mount Rainier, MD homeowners’ guide to water main install, replace or repairs

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