Trenchless Sewer Line Repair and Replacement in St. Thomas, ON
We repair and replace broken sewer lines across St. Thomas without trenching the yard. Depending on what the camera finds, we reline the old pipe or burst it in place, and the lawn stays where it is.
What Trenchless Actually Means
Traditional sewer repair means an excavator. A trench gets cut across the yard down to the pipe, and everything sitting on top of it comes out with the soil: sod, shrubs, a strip of driveway, sometimes a patio. Swapping the pipe takes an afternoon. Putting the yard back takes considerably longer than that, and it is usually the bigger half of the bill.
Trenchless does the same job through access points that already exist. We work through a cleanout, or through one or two small pits at either end of the run. The old pipe either gets a new liner cured inside it, or gets split apart and replaced from within while it stays in the ground.
The ground between those two points is never opened. That is the whole idea, and it is why the people searching trenchless sewer repair near me are usually people who have just been handed a number by somebody with a backhoe.
Signs You Need Trenchless Sewer Repair Near You
A blocked drain and a broken pipe look identical from inside the house. The difference shows up outside.
- A strip of lawn that stays greener and thicker than everything around it. Grass and roots have found a food source, and it is your sewer line.
- A dip, a soft patch, or a small sinkhole in the ground above the line. Soil is washing into a crack and leaving a void behind.
- A sewage smell outdoors, low down and near the ground, rather than in the basement.
- A crack or a settled section in the driveway or the patio, following the path the line takes underneath.
- Drain flies or rodents turning up indoors. A pipe with a hole in it is a doorway.
- The same run has been cleared twice and it came back within a few months anyway.
If two or more of these are true, the pipe is the problem, not what is stuck inside it. Clearing it again buys you a few weeks.
Already been quoted for an excavator?
Get a camera down the line before anybody touches the lawn. A lot of what gets dug up in St. Thomas never needed to be.
Pipe Lining vs. Pipe Bursting
There are two trenchless methods and they are not interchangeable. The camera decides which one you get, not the person writing the quote.
Pipe lining
Cured-in-place pipe, or CIPP
A resin-soaked liner is pulled through the old pipe and inflated against the wall. It cures hard in a few hours, and what you are left with is a new pipe formed inside the old one. Nothing comes out of the ground. It costs you a few millimetres of diameter, which on a four-inch line nobody ever notices.
We use it when
- The pipe is cracked, corroded or full of roots but still holds its shape
- The run passes under a driveway, a patio, or a mature tree
- You want the whole thing finished inside a day
Pipe bursting
A full replacement, done in place
A steel head is winched through the old pipe. It splits the old pipe outward into the surrounding soil and drags a new one in behind it. You end up with a brand new pipe on the same path, at the same size or a size up. The yard above it stays shut.
We use it when
- The pipe has collapsed, gone out of round, or come apart at the joints
- There is nothing left inside for a liner to bond to
- You want to go up a size, which old undersized clay lines often need
Neither one is the better method. Lining is less invasive and it usually costs less. Bursting is the only honest answer once the pipe has lost its shape, because a liner needs a wall to press against.
If you have been searching pipe lining near me and somebody has given you a price without putting a camera down, that is not a quote. That is a guess with a number attached.
How a Trenchless Job Runs
Five steps. Most residential runs get through all of them between breakfast and supper.
The camera goes in
We survey the whole run from the cleanout out to the city main and mark the damage from the surface. Nobody can price this job honestly until that is done.
The line gets cleaned
Roots, scale and sludge come out first. A liner will not bond to a dirty wall, and a bursting head will not pull cleanly through a packed pipe.
Access, not a trench
One pit where the pipe starts, one where it ends, each about the size of a manhole cover. On plenty of jobs the cleanout you already have does the work of one of them.
The pipe gets renewed
Liner cured in place, or the old pipe burst outward and a new one pulled through behind it. This is the part that takes hours rather than days.
The camera goes back in
Same run, second pass. You see the finished pipe end to end before the truck leaves, and you keep the footage.
What It Costs in St. Thomas
Trenchless is not always cheaper per foot. It is almost always cheaper once you add up everything the excavator leaves behind it.
What actually sets the price
How long the run is, and how deep the pipe sits under the ground.
Lining or bursting. Bursting costs more, because it is a full replacement rather than a repair.
What the camera actually finds. One cracked section is not a whole line, and we will not price it as one.
Whether the run crosses under a driveway, a mature tree, or the city sidewalk.
Whether the city has to be involved where your lateral meets the main.
Ask any trenching quote what is inside the number. A lot of them price the pipe and quietly leave the sod, the driveway and the landscaping as your problem for the following spring. That is where the real difference between the two approaches lives.
You get a fixed figure after the camera survey and before anything starts. If you are calling round for trenchless pipe repair near me and somebody prices it over the phone, they have not seen your pipe and they are not quoting your job.
Trenchless Questions We Get Asked
Can a broken sewer line be repaired without digging?
In most cases, yes. If the pipe is cracked, corroded or root-bound but still holding its shape, we line it from the inside. If it has collapsed, we burst it and pull a new pipe along the same path. Neither one opens a trench across the yard. The exception is a line that has dropped badly out of alignment or separated at a joint under a structure. That one has to be dug, and we will say so rather than sell you a liner that will fail.
What is trenchless sewer repair?
It is any method that renews a buried pipe through the access points that already exist instead of digging it out. The two we use are cured-in-place lining and pipe bursting. Both work along the inside of the old pipe, so the ground sitting on top of it is never opened.
Is sewer pipe lining worth the cost?
It depends what you are comparing it against. Foot for foot, a liner can cost more than the raw pipe an excavator would drop into a trench. But that excavator also takes out your sod, your shrubs and often a strip of the driveway, and none of it goes back for nothing. Once restoration is inside the number, lining usually comes out ahead.
How long does a lined pipe last?
The liners are rated for around fifty years, which is longer than the clay pipe most older St. Thomas houses were built on. That is a material rating rather than a promise about your particular soil, and we will not pretend otherwise. What we will say is that a properly cured liner outlives the pipe it was formed inside.
Lining or bursting: which one will I get?
The camera decides. If the old pipe still holds its shape, a liner has a wall to bond to, and that is the cheaper and less invasive route. If the pipe has gone out of round or come apart at the joints, there is nothing to line and bursting is the answer. Anybody who tells you which one you need before looking inside is guessing.
How long does the job take?
Most residential runs are finished in a day. The survey and the cleaning take the morning, the liner or the burst takes the afternoon, and a fresh liner needs a few hours to cure before the line goes back into service. A long run, or one that has to be dug at a single point, can stretch into a second day.
Before Anybody Digs Up Your Lawn
Send us the quote you have been given, or just describe what the yard has started doing. If trenchless sewer line replacement near you turns out to be the right call, we will camera it first and price it properly. If the line only needs clearing, we will tell you that instead of selling you a liner.
Speak to a plumber
(226) 785-4812What our customers say
Curtis M.
Had one company out who wanted to cut a trench across the whole front garden and put the driveway back afterwards. These guys came, put a camera down, and lined it through the cleanout instead. One day, not two weeks, and the lawn is still a lawn.
2026-05-08Joanne P.
Two small holes and one day of work, and I still do not entirely understand how they managed it. The important part is that the flower beds I spent four years on are exactly where I left them. Tidy crew, too.
2026-02-11Frank D.
There was a strip of lawn that stayed green right through August while the rest of it went brown, and I was convinced I had a sprinkler leak. It was the sewer line. They lined it and I have not had to think about it since.
2026-06-20Hannah S.
Turned out mine did not need lining at all. He showed me the footage, said the pipe was sound and the trouble was somewhere further in, and charged me for the survey and nothing else. That is exactly the second opinion I was after.
2026-01-29Tomasz W.
Old clay pipe, completely gone at one of the joints. The camera showed it was too far along to line, so they burst it and pulled a new one through. The only thing they opened up was two small pits. The maple stayed where it was.
2026-04-17Renee B.
What I liked was that nobody guessed. They surveyed it, showed me the footage, explained why lining was the right call and what it would cost. Then that is what it cost. After three quotes that all said something different, that mattered more than the number.
2026-03-05