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

Avatar for Mahon Plumbing
Mahon Plumbing
4.6(
199
)
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Hired Mahon Plumbing to replace a toilet at my moms house. Chris and the technician were knowledgeable and responsive. I had a great experience working with them and would hire for any future needs."
Tankless water heater installation
Tankless Water Heater Installation
Commercial drain cleaning
Sewer Line Video Inspection
Water heater replacement

+30

Response time7 hrs
Response rate100%
Recommended by92%of homeowners
Avatar for Remedy Plumbing and Drain Cleaning
Remedy Plumbing and Drain Cleaning
4.8(
78
)
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"I called Remedy at 7:30am to request a new toilet installation, and they were able to get it done the same day at a very reasonable price. The technician took his shoes off before entering the house and kept his mask on the entire time. He was professional and courteous, as was the office personnel I spoke with. They removed the old toilet, installed the new toilet, processed the paperwork, and disposed of the old toilet, all in less than an hour. I would highly recommend Remedy Plumbing and will certainly use them again if needed."
Additional Photos
Additional Photos
9 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Mr. Rooter of Maryland
Mr. Rooter of Maryland
4.3(
1,100
)
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"Terrific response timing and super friendly. Had to use them on two separate issues with ten days each time they sent a knowledgeable, competent, plumber who made the repair (installing new water line shut offs as well as a new hot water heater) within hours. Highly recommend Mr. Rooter"
Mr. Rooter of Baltimore fleet
Response time50 mins
17 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Prime Plumbing, LLC
Prime Plumbing, LLC
4.4(
42
)
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Small jobs welcome

Credit card accepted

"Prime Plumbing provided excellent customers service from the beginning to the end. Rob was very thorough when he came out to provide estimate, financing options and gave good explanation of what was needed to replace my direct vent hot water tank for my condo. Rob was also the one who installed the hot water tank and did an excellent job. Direct vent hot water tanks are much more expensive than your standard hot water tank, so it was pricey. I initially found Prime Plumbing on Angie's list and I would recommend them for your plumbing needs. I'm a single female in my early 60's. I did end up using my own financing because their finance company interest rates were way too high for someone with excellent credit. Do rate comparison first."
Septic Pumping
Hydrant Removal
Failed Hydrant
Response time3 hrs
226 neighbors recently requested a quote
Recommended by21%of homeowners
Around the Clock Plumbing & Heating Inc
5.0(
1
)
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our \nbusiness. We uphold a standard of integrity bound by fairness, honesty, \nand personal responsibility. Our distinction is the quality of service \nwe bring to our customers. Accurate knowledge of \nour trade combined with ability is what makes us true professionals. \nAbove all, we are watchful of our customers' interests and make their \nconcerns the basis of our business.

Response time6 hrs
F.H. Furr Glen Burnie
New to Angi
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

Approved (Corporate)

Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.

1 neighbors recently requested a quote
Avatar for Orbit Water Solutions
Orbit Water Solutions
4.8(
44
)
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"We could not be happier with the Puronics Hydronex iGen Whole home treatment system and Micromax 7000 drinking water system provided by Orbit Water Solutions. Justin, the marketing rep who sold us the system, was very professional and accommodating. Justin took about an hour to demonstrate a series of tests which reflected to quality of our water which had more chlorine and hardness than we expected. If you have concerns for lead, Orbit standard demonstration does test for it so you will need to have a separate test done. After some negotiation, we were able to settle on a deal which got us the system and financing for the next 10 years. Orbit provides annual maintenance services on the machine and there is a lifetime warranty on parts which really assured us we were making an investment to improve our water. The best part about it is that the system travels with you. For a small fee, Orbit will pack the system up and ship it to your next home if you move which was a big selling point for us. Orbit also threw in a subscription to PureSelects soap for the next 10 years which was a nice add-on. PureSelects provides every kind of soap or cleaning product you could ask for so it will be nice not to have to purchase additional soap products in the near future. Within a couple days, the installation team came out to install the system. They arrived on time but the installation took a little bit longer than expected. Turns out our the installed garbage disposal was too large to fit with the RO unit tank under the sink. Orbit was very accommodating though. Orbit purchased a new garbage disposal and installed it free of charge which I bet many companies would not have done. I highly recommend getting the larger of the under sink tanks for the RO unit. Even with the two gallon tank, my family has used up all the water in the tank. A 1 gallon tank would just not have been enough. The water in our house has been incredible since we installed the system a few months ago. We noticed an immediate impact to our skin and hair after using it and our drinking water certainly tastes better. Best of all, we feel confident in the quality of the water we use throughout the house to keep us safe and our appliances in good condition. We highly recommend the investment in the water treatment systems through Orbit."
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+9

Recommended by97%of homeowners
Avatar for Millersville Plumbing Inc
Millersville Plumbing Inc
4.7(
257
)
Water Main - Install, Replace or Repair

Serving Crownsville, MD and surrounding areas

In business since 1970

Free estimates

Credit card accepted

"The plumber was kind enough to find the correct replacement handles at a nearby hardware store and repaired a leaky kitchen faucet while I ran to pick up the new parts. He installed quickly without the need for a return service call. Thank you!"
Recommended by92%of homeowners
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FAQs for water main install, replace or repair projects in Crownsville, 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 Crownsville, 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.