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

Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Water Main - Install, Replace or Repair

Serving Watertown, MA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Live Your Most Comfortable Life with a Company You Trust. \nWe offer Same Day Service and Next Day Installation! \n \nSila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it?s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe ? season after season. \nWe guarantee satisfaction and are proud to have earned over 7,000 ?A? ratings on Angie?s List and its prestigious Super Service Award!

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+6

66 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Water Main - Install, Replace or Repair

Serving Watertown, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"I couldn't recommend these guys more. We had a 21-year old boiler replaced and upgraded, and a new hot water tank installed. I can't think of a single way they could have improved the whole process. From start to finish, they were knowledgeable, on time, clean, considerate, extremely professional and they did exactly what they said they would. The also installed a temporary hot water tank and left electric space heaters on the one night the burner was out of service. Everything is now working as they said it would, and a big bonus is their workmanship actually LOOKS great too! A+++"
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31 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.6(
22
)
Water Main - Install, Replace or Repair

Serving Watertown, MA and surrounding areas

Approved (Corporate)

In business since 2018

Free estimates

Emergency services offered

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

Garbage disposal
Bathroom plumbing
Water heater
Water Filtration
Plumbing maintenance

+19

Response time9 hrs
Recommended by84%of homeowners
Papalia Home Service
4.8(
5
)
Water Main - Install, Replace or Repair

Serving Watertown, MA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Credit card accepted

Papalia Home Services is a business that has been serving the Boston Metro West Area since 1990. With over 30 years of service under our belts, we've grown into the most dedicated plumbing & heating service in the Bay State, many thanks to our fully-trained technicians. No matter if it's installation, repair, replacement, you name it—our staff is trained how to handle the latest technology and will always show up to your home with a fully stocked truck ready to go! \n

Avatar for GEM Plumbing & Heating
GEM Plumbing & Heating
1.0(
2
)
Water Main - Install, Replace or Repair

Serving Watertown, MA and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

With over 75 years of experience, GEM provides trusted plumbing services for homeowners in the Plymouth, MA area, as well as across Cape Cod. Our licensed plumbers handle everything from leak repairs and drain cleaning to water heaters, fixture installations, and emergency plumbing service.\n\nWhether you're dealing with a clogged drain or a sudden leak, we deliver fast, reliable solutions to keep your home running smoothly.

New Thermostat
During the removal
During the removal
After
During the removal

+16

Response time40 mins
Response rate100%
Boston Standard Company
4.3(
431
)
Water Main - Install, Replace or Repair

Serving Watertown, MA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"Finally a great company you can rely on to get the job done! I have used them for my multi-family home for years and have always been so happy to have this wonderful team of people to help me out. From Joanie in the office to all the great plumbers, Brandon, TJ, Kyle, Jorge to name a few they are all so professional, friendly and knowledgeable. They are easy to work with, they call you 1/2 hour prior to arrival, cover their boots when they are in your home and have a low monthly charge for their service plan, which is worth every penny. Brandon has been out the most and he is a wealth of knowledge. He had so many issues to figure out this go around and he found all the issues in a methodical way. He's straight up trustworthy too. One leak was from the tenants toilet and needed a new flange and was pulled and set, and an old cast iron pipe cut and replaced with new pvc drain line. Another leak was from an old laundry valve which left a lot of water in the basement who knew?! An old shower valve was causing the rattle and was replaced. Lastly the for the other toilet problem, he suggested I buy a toilet and he would install it saving me hundreds of dollars! He even gave me the brands that he liked for toilets. Brandon even checked my furnace, gave me some suggestions and gave me a quote on the water heaters that are close to replacement. It was like having a family member checking to make sure everything was okay in the house! Thank you to Boston Standard for all the hard work!"
Recommended by85%of homeowners
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FAQs for water main install, replace or repair projects in Watertown, MA

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 Watertown, MA 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.