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Find Sewer main install, replace or repairers in Longmont

Avatar for Rooter Guy, LLC
Rooter Guy, LLC
4.7(
2,759
)

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
1072 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Peak Plumbing & Drain Repair, LLC
Peak Plumbing & Drain Repair, LLC
4.9(
57
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Credit card accepted

"Jacob and Tim with Peak Plumbing replaced my main drain sewer line from clean out to the sidewalk. These guys are great!!! They are professional, knowledgeable, have great skills and they are a great value for the work they do! I highly recommend these guys and the company. Great customer service!!!"
Before
Sewer Repair
Response time6 hrs
97 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for No Limits Plumbing & Drains
No Limits Plumbing & Drains
5.0(
105
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Warranties offered

Small jobs welcome

"The company was very fast, efficient, and very professional. I had to have my sewer pipe replaced, so they had to dig up my laundry room and bedroom floor. About a 1’1/2” wide of concrete floor They fixed the pipe and repaired the cement floor and cleaned up all of there mess. The workers were very nice and did a great job. And very far price. I’m very happy with their work. Would highly recommend this company. "
Sink Rough In
Washer
Sink for bathroom
Shower & Toilet
Before Cleanout

+2

Response time7 hrs
121 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for All Sewer and Plumbing Services
All Sewer and Plumbing Services
4.8(
12
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Waldo and his guys were honest and straightforward in evaluating my sewer problem: they told me what needed to be done and as importantly, what didn't need to be done. Another company came out and stated that the entire line had to be replaced, even though most of it is PVC since a remodel in the 90s. Waldo answered my questions directly, telling me how they would approach it and what could happen that would involve more work and therefore most cost. Even with these caveats their bid was anywhere from 20 to 60% cheaper than other bids we got. They sent me a video of the completed work showing replacement of the broken pipe as well as the rest of the sewer line. With the five year warranty, I feel peace of mind and confidence that they will stand by their work. If there is any downside, it's that they are very busy so sometimes it takes a bit to get back to you. But I never felt put off or neglected. Definitely will use them in the future for any plumbing work that comes up."
Response time2 hrs
Response rate89%
10 neighbors recently requested a quote
Avatar for Generation Sewer and Water, LLC
Generation Sewer and Water, LLC
4.9(
21
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"I hired GoldStar to replace the main sewer pipe two weeks ago. I am very impressed by the excellent customer service I received. After I talked to Tran, he did an accurate measurement in a day or two and provided a very reasonable quote. Once I gave the green light to proceed, he got the work scheduled and coordinated with the two inspectors required for the project. Although there was something unplanned like any project that happened onsite, the worker told me honestly, and Tran took care of it without fuss. The payment options are very smooth as well. The quality looks good from the layman's eye. I trust the inspectors did their job to validate. More importantly, I am glad GoldStar does it. The bottom line: if you need an honest contractor to do a similar job, I highly recommend GoldStar."
Response time7 hrs
Recommended by80%of homeowners
Avatar for OnGrade Plumbing & Excavating LLC.
OnGrade Plumbing & Excavating LLC.
5.0(
7
)

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 Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
4.9(
77
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Plumber was professional, polite, and excellent. Price is outrageous. $600 for 1 hour, which includes a few Inexpensive parts. I was told it would be cheaper to buy a new toilet and have it replaced. I proxies it out: would have cost me $300-400 for a new toilet including installation. I’ll definitely do that next time."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

23 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Jim Needham Heating Cooling Plumbing & Drain
Jim Needham Heating Cooling Plumbing & Drain
4.9(
61
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Jim did a great job installing my water heater. He also repaired a washer leak and water connectors. I would highly recommend him. He was fair and reasonable, high ethical standards. I certainly will call him again if I have a problem. Thank you Jim......"
After
Furnace
Outdoor a/c (condensing) unit
Indoor furnace
Outdoor a/c (condensing) unit

+1

Response time2 days
15 neighbors recently requested a quote
Recommended by95%of homeowners
Showing 1-10 of 31
FAQs for sewer main install, replace or repair projects in Longmont, CO

When installing a sewer line, you should consider extra costs like tree removal, driveway repairs, or patio resurfacing. Hiring a professional plumber is essential, and you may need additional specialists if landscaping or heavy excavation is involved. Addressing these potential extras up front helps ensure accurate budgeting and prevents sudden cost overruns.

To calculate the length of sewer piping you need, measure the distance from your house to the main sewer line, adding the depth of the city main to this distance. Be sure to account for any obstacles like tree roots or utility lines that may require additional piping.

City sewer lines are installed at a lower elevation to prevent unwanted backflow and water damage. This lower positioning ensures enhanced performance and long-term safety, meeting all technical and safety standards.

With trenchless methods, a plumber inserts a smaller pipe within the existing plumbing, avoiding full excavation. It can be more cost-effective and less disruptive than traditional methods, but it's not suitable for all homes.

Yes, you must secure permission from your local water authority before connecting to a public sewer line. This approval ensures your connection meets all regulatory requirements.

Sewer lines are buried between 18 inches and 8 feet deep, with most systems placed between 18 and 30 inches. In colder regions, pipes are set deeper to remain below the frost line.

The Longmont, CO homeowners’ guide to sewer main install, replace or repairs

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