Top-rated water main install, replace or repairers.

Get matched with top water main install, replace or repairers in Longmont, CO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Water main install, replace or repairers in Longmont

Avatar for Front Range Water Heater and Excavation
Front Range Water Heater and Excavation
4.9(
87
)
Water Main - Install, Replace or Repair

Serving Longmont, CO and surrounding areas

Approved

In business since 2018

Emergency services offered

Warranties offered

"Tim, the service personnel from Front Range Heater and Excavation, removed the prior and installed the new water heater, I felt fully informed during the process, as well communicating in friendly and professional manner. Tim educated me about possible pilot lighting and left the space clean upon leaving."
Response time10 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Rooter Guy, LLC
Rooter Guy, LLC
4.6(
3,126
)
Water Main - Install, Replace or Repair

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"The Rooter Guy replaced my main sewer line in 1 day. They did excellent work. Removing and installing new pipe . Haul off all the old concrete and pipe. They cleaned up so good I couldn't believe it!! Worth every penny!! Keep up the good work Rooter Guys. I would Definitely hire them again if needed."
sewer cleaning
1386 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
4.7(
91
)
Water Main - Install, Replace or Repair

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Roberto Ortiz Prestamo did an excellent job replacing our water line. We're very happy with his work. He replaced the plastic line with a copper line. The work was done quickly and accurately. We look forward to working with him in the future for any of our heating and cooling needs. We highly recommend him and his company!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

9 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for TYCO Plumbing Corporation
TYCO Plumbing Corporation
5.0(
60
)
Water Main - Install, Replace or Repair

Serving Longmont, CO and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Excellent, very professional job. Tyler repaired our bathtub fixtures and replaced the leaking main water-supply valve, as well as the defective water-pressure regulator. He did all that on time and at a reasonable price. Highly recommended."
Tub/Shower valve upgrade
New 1/4 turn main with pressure reducing valve.
Upgraded disposal with drain modifications. (AFTER
Leaking disposal with improper drain. (BEFORE)
New fiberglass tub install

+2

Response time2 hrs
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for OnGrade Plumbing & Excavating LLC.
OnGrade Plumbing & Excavating LLC.
5.0(
13
)
Water Main - Install, Replace or Repair

Serving Longmont, CO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Ongrade plumbing and excavating was a god send. Unbelievable how clean and professional they were from start to finish on my sewer line replacement. They did their best to protect my grass with plywood and did a very good job cleaning up given the huge pile of dirt! Thier pricing was amazing compared to some of the other estimates I received from other company's. Highly recommend to anyone for any of thier home or business plumbing issues"
Underground Gas Line
Underground Gas Line
Underground Gas Line
Leaking Pipes
Tankless Water Heater

+1

Response time10 hrs
Response rate91%
4 neighbors recently requested a quote
Avatar for Peak Plumbing & Drain Repair, LLC
Peak Plumbing & Drain Repair, LLC
4.8(
62
)
Water Main - Install, Replace or Repair

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Credit card accepted

"My recent customer experience with Peak Plumbing easily ranked in my top 5 best service experiences. While clearing out my house for sale, I discovered water leaking out of the ground, and it was determined that my water main had a leak (old blue poly from the early 1990â s). Timing was critical to have it replaced, and, based on other online reviews of Peak Plumbing, I contact them on the 4th of July holiday. My first contact was with Tim, and then Jacob, both of whom were very professional and direct. Jacob visited my home the next morning, and proposed pulling the main the very next day. I asked for a quote for the pull, but also an adder in case the pull failed (according to Jacob, pulls are successful about 90% of the time), which would mean directional drill placement of the main would be required. The quote I received within a few hours was very close to another vendorâ s response I received, but the other vendor could not do the work for a week. Peak also committed to being able to do the directional drill the next day if the pull failed, so I chose Peak. Peakâ s crew arrived the next morning, and they got to work. Because of the very tortuous route of the original main as well as rocky soil, the pull was unfortunately unsuccessful. So, at 7:15 AM the next morning, the drilling crew and Peak staff showed up and successfully drilled and pulled a new main to a different, more accessible location in my basement. By early afternoon, my house had water again. Every aspect of this job was customer focused, and mission focused. I was extremely impressed with the professionalism and knowledge of Peakâ s people, and greatly encourage anyone reading this review to contact Peak Plumbing for their plumbing needs."
Before
Sewer Repair
Response time6 hrs
100 neighbors recently requested a quote
Recommended by85%of homeowners
No Limits Plumbing & Drains LLC
5.0(
112
)
Water Main - Install, Replace or Repair

Serving Longmont, CO and surrounding areas

Approved

In business since 2024

Customers say: True professional

We pride our company on reliability, great communication,\nintegrity, and quality work. We are experts in our trade and will do our best\nto keep you as educated as we can on your particular task or project. We are licensed and insured. We look\nforward to earning your business!

13 neighbors recently requested a quote
Recommended by55%of homeowners
...
Showing 1-10 of 212
FAQs for water main install, replace or repair projects in Longmont, CO

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 Longmont, CO 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.