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

Avatar for Select Excavation & Landscaping, LLC
Select Excavation & Landscaping, LLC
5.0(
18
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

At Select Excavation & Landscaping, LLC, our commitment to value pricing and superior work are what separates us from the rest. Our energy, knowledge, experience, proficiency, and hands on approach are a few of our traits, that produce results, to satisfy customers year after year. We work hand-in-hand with customers to ensure project specifications match each and every homeowner desire. Call today for your free estimate!

Septic Pumping
Connecting Water Services
Connecting Water Services
Septic Pumping
Leach field

+19

7 neighbors recently requested a quote
Recommended by52%of homeowners
Avatar for Absolute Water System LLC
Absolute Water System LLC
4.7(
30
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

In business since 1981

Emergency services offered

Credit card accepted

"George and his team did an excellent job with the install. I received quotes that were much higher for the same project and similar systems. As busy as George was he always answered my questions leading up to the install and was there right when he said he would be. George even helped me plumb a water line to my refrigerator and didn't charge me for the material he used! I have already recommended Absolute Water Systems to a friend and will certainly be using them for any future projects."
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Recommended by96%of homeowners
Avatar for Forsythe Carpentry
Forsythe Carpentry
5.0(
42
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

In business since 2009

Free estimates

"Todd was excellent from the first day he came to look at the job until the completion of the bathroom.  Lots of attention to the details.  As this is our only bathroom, we needed to be away from the house while the renovation was completed.  Todd, and his team - plumber & electrician worked extremely well together to meet the time crunch so when we returned a week later the bathroom had functional plumbing and the final details were finished up within a few days.  The tile looks great and the finish work is very nice!  I would recommend Todd in a minute!  He was very professional, worked very neatly!  and went over and above the call of duty when we realized I had ordered the wrong size shower rod.  He made an extra trip to get a temporary one installed so the shower was available for use when we got home. Very nice job, best experience I have had with a contractor, ever!"
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen
yanzinski kitchen

+50

Recommended by100%of homeowners
Avatar for Jeff's Drains
Jeff's Drains
4.5(
15
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

In business since 2007

Emergency services offered

Credit card accepted

"Couldn’t be better! Jeff guaranteed he would fully clear it. He worked intelligently, cut pipe, stayed with it for at least 2.5 hours chipping away at the hardened build up. Afterwards we ran the water full blast for 5 minutes and the drain just sucked it down. That was 7 weeks ago. It’s still perfect. Moreover he’s pleasant, affable and professional. We felt he earned more than the $140 he charge so we tipped him $30."
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Recommended by92%of homeowners
Avatar for Vista Home Improvement
Vista Home Improvement
4.3(
419
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"From the marketing to installation to the follow up everything was to our liking. We were very pleased with all aspects of the job. Dave went above and beyond to get the job done, always being on top of everything to keep the job rolling. Thank you Vista Home Improvement we love our new sunroom and deck!!!!"
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+41

Recommended by87%of homeowners
Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,678
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"Called about leak Sunday morning. Plumber came out Monday, determined it needed replacement and notified Choice, who approved claim and permitted plumber to order new water heater. Thursday new water heater was installed. Was kept updated every day by both Choice and the plumber. Workers left my garage clean and I have hot water. Very satisfied and have recommended Choice Home Warranty on the Nextdoor app."
Recommended by81%of homeowners
Robert Milliard Roofing
4.3(
142
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"We had an ice dam and water was leaking into our house. Barbara, who you speak with on the phone, was so helpful and friendly. When they quoted the price we thought it seemed expensive but we needed the work done quickly and they were available right away. Since we weren't sure what was involved in the process, we decided to go with them. We figured for that price they would definitely do a good and thorough job, especially since they had good reviews on Angie's list. They did arrive on time and appeared to do a good job. We were disappointed that they only removed the snow from the back half of the roof (where the dam was) and not the whole roof. Also, 2 days after they completed the job it rained and water leaked into our house again in the same spot. Also, now that we have had time to research ice dams more, we have found out that we probably could've had the job done for quite a bit cheaper, also by other reputable roofing companies which is why we wouldn't use them again."
Recommended by89%of homeowners
Avatar for TJ Thistlewood Plumbing & HVAC
TJ Thistlewood Plumbing & HVAC
5.0(
6
)
Water Main - Install, Replace or Repair

Serving New Castle, NH and surrounding areas

Emergency services offered

"Tyler & his team were very professional and thorough with repairing my tankless water heater. Tyler was quick to respond to my call for a repair service call and took the care to be as neat as possible during the repair and cleaned up nicely when the service was completed. TOP NOTCH !!!"
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+1

Recommended by100%of homeowners
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FAQs for water main install, replace or repair projects in New Castle, NH

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 New Castle, NH 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.