Trenchless Sewer Repair in Longmont, CO
Pipe lining and pipe bursting repair your sewer line through small access points, not a trench across your yard. We inspect first and tell you honestly which method fits.
Sewer Line Repair Without Digging Up Your Longmont Yard
A failing sewer line used to mean one thing: a backhoe in the front yard, a trench across the driveway and weeks of cleanup. Trenchless sewer repair changes that. Working through small access points instead of a full-length trench, our technicians repair or replace a damaged sewer line from the inside, leaving lawns, patios, walkways and mature trees largely untouched.
M&M offers two trenchless methods. Pipe lining (cured-in-place pipe, or CIPP) installs a resin-saturated liner inside the existing pipe and hardens it into a smooth, jointless new pipe. Pipe bursting pulls a brand-new pipe through the old one while a bursting head breaks the original outward into the surrounding soil. Lining preserves the existing pipe path; bursting replaces the pipe entirely and can even increase its diameter.
Trenchless is not the right answer for every line, and we will tell you that honestly. A pipe that has fully collapsed, a deep belly that holds standing water or a badly offset joint may still call for targeted excavation. That is why every trenchless job in Longmont starts with a camera inspection: we look first, show you the footage, then recommend the method that actually fits your pipe.
Family-owned since 1996, M&M backs every sewer repair with upfront pricing, no extra charge for nights or weekends and a 100% satisfaction guarantee.
What Trenchless Can Fix, and What It Can't
The camera decides, not a sales pitch. Here is how the most common Front Range sewer problems line up with each repair method.
Root-Invaded Clay Pipe
Older Longmont neighborhoods run on clay sewer lines with a joint every few feet, and mature cottonwoods, maples and elms find every one of them. Lining seals the joints from the inside so roots lose their entry point.
Cracks, Fractures & Corrosion
Cracked clay, scaling cast iron and deteriorating Orangeburg pipe are strong lining candidates as long as the pipe still holds its round shape. The liner bridges cracks and creates a new, corrosion-resistant wall.
Joints Pulled Apart by Clay Soil
Expansive clay across the Front Range swells when wet and shrinks when dry, slowly pulling segmented pipe apart at the joints. Pipe bursting replaces the whole run with a single continuous pipe that has no joints to separate.
Fully Collapsed Sections
A liner cannot inflate inside a pipe that has caved in, and a bursting head cannot pass through it. Collapsed sections usually need a targeted dig at that spot, often combined with trenchless repair for the rest of the line.
Bellies & Sags
A belly is a low spot where the pipe has settled and waste collects. Because a liner follows the shape of the host pipe, lining locks the dip in place. A significant belly usually needs excavation to re-grade the pipe properly.
Lines Under Driveways, Patios & Trees
When a sewer line runs beneath concrete, pavers, an established landscape or the root zone of a tree you want to keep, trenchless avoids the demolition and restoration that make traditional replacement so costly.
Trenchless vs. Traditional Excavation
Both get your sewer line working again. The difference is what happens to the ground above it.
Trenchless Repair
Pipe lining or pipe bursting completed through one or two small access pits. Best for pipes that are cracked, root-damaged, corroded or separating at the joints but still structurally intact.
- Small access points instead of a full-length trench
- Lawns, driveways, patios and trees stay in place
- Jointless new pipe resists future root intrusion
- Shorter timeline with far less restoration work
- Not a fit for collapsed pipe or deep bellies
Traditional Excavation
The old pipe is exposed, removed and replaced in an open trench. Still the right call when a line has collapsed, has a severe belly or sits where trenchless access is not possible.
- Works on any pipe condition, including collapse
- Corrects grade and belly problems
- Lets us inspect the surrounding soil and bedding
- Requires landscape, driveway or sidewalk restoration
- Longer project with more disruption to your property
The M&M Difference
Trenchless is a method, not a sales pitch. We recommend it when it fits and say so when it doesn't.
We Look Before We Recommend
Every trenchless job starts with a video camera inspection. You see the footage, the location and the condition of the pipe before anyone talks about a method or a price.
Lining and Bursting, Not Just One
Offering both trenchless methods means we match the fix to your pipe instead of forcing your pipe to fit the one tool we own.
Honest About Excavation
Some lines need to be dug up. When yours does, we will tell you plainly, keep the dig as small as possible and put your yard back together.
Family-Owned Since 1996
Nearly 30 years of Front Range sewer work, upfront pricing, no extra charge for nights or weekends and a 100% satisfaction guarantee on every job.
Our 4-Step Process
From the first camera pass to the final one, you know exactly what is happening under your yard.
Inspect & Locate
We run a camera through the sewer line, record the footage and mark the location and depth of every problem from the surface so we know exactly where any access point needs to go.
Choose the Method
We walk you through what the camera found and explain whether lining, pipe bursting or a targeted dig fits your pipe. You get upfront pricing for the recommended option before any work starts.
Clean & Repair
The line is cleared of roots and debris, usually with hydro jetting. Then we either cure a new liner in place or pull a new pipe through the old one, working from small access pits rather than a trench.
Verify & Restore
A final camera pass confirms the new pipe is smooth, sealed and flowing. We close the access points, restore the surface and walk you through the results.
Trenchless Sewer Repair Questions
What is the difference between pipe lining and pipe bursting?
Pipe lining keeps your existing pipe in place and creates a new pipe inside it: a resin-soaked liner is inserted, inflated and cured hard. Pipe bursting replaces the old pipe entirely. A bursting head is pulled through the line, fracturing the old pipe outward while a new pipe follows directly behind it. Lining suits pipes that are intact but damaged; bursting suits pipes that are too deteriorated to line or that need a larger diameter.
How do I know if my sewer line qualifies for trenchless repair?
Only a camera inspection can answer that. Cracks, root intrusion, corrosion and separated joints are usually good candidates. A pipe that has fully collapsed, has a deep belly holding standing water or is badly misaligned may need excavation at that spot. We show you the footage and explain the recommendation so you can see why one method fits and another does not.
Will trenchless repair damage my driveway, landscaping or trees?
Trenchless work needs only one or two small access pits, typically at the cleanout or at each end of the damaged run. Driveways, patios, walkways and established landscaping between those points stay intact. Mature trees are a particular concern on Longmont's older lots, and avoiding a trench through the root zone is one of the main reasons homeowners choose this method.
Does trenchless repair hold up in the Front Range's expansive clay soil?
Yes. Soil movement is actually one of the strongest arguments for it. Expansive clay pulls segmented clay and concrete pipe apart at the joints as it swells and shrinks. Both trenchless methods produce a continuous, jointless pipe, so there are no seams for shifting soil to separate or for roots to enter.
Can trenchless repair fix a belly or sag in my sewer line?
Usually not. A liner takes the shape of the pipe it cures inside, so a low spot stays a low spot. Pipe bursting follows the existing path as well. Correcting a belly means re-grading the pipe, which requires exposing that section. In many cases we can dig only the bellied stretch and use trenchless repair on the rest of the line.
Is a trenchless sewer line as durable as a brand-new pipe?
Both methods are designed to last for decades. A cured liner forms a structural, corrosion-resistant pipe wall with no joints, and pipe bursting installs new high-density polyethylene pipe that is fused into one continuous run. Either way, you end up with a smoother interior than the old pipe, which improves flow and resists buildup. We confirm the result with a final camera inspection.
Ready to Fix Your Sewer Line Without the Trench?
Open 24/7 | Emergency Service Available
Call (720) 608-3973Trenchless Sewer Repair Across the Front Range
Proudly serving Longmont, CO and surrounding communities.
Primary Service Area
- Longmont, CO
- Erie, CO
- Frederick, CO
- Firestone, CO
- Dacono, CO
Extended Area
- Mead, CO
- Johnstown, CO
- Berthoud, CO
- Niwot, CO
- Gunbarrel, CO
Also Serving
- Lafayette, CO
- Louisville, CO
- Superior, CO
