Repair Broken Sewer Main Options – Trenchless Versus Digging
Replace or Reline, What Are Your Options?
So you have probably been experiencing repeated backups or sewer pipe leaks. Usually its broken or cracked cast iron pipes or roots growing into pipe cracks to drink the delicious water that is the problem. So the plumber wants to dig up your house to replace the pipe the old fashioned way, but you may also have heard about trenchless sewer pipe repair. What should you do?
Don’t Dig Up Your Property To Repair A Broken Sewer Main!
Option #1, to excavate your property means the tenants have to move out for a few weeks. The the plumbers jackhammer and saw-cut the floor which spreads dust and sewer bacteria throughout your property, which you have to clean. They will replace the concrete, but you have to replace the tile, travertine or marble surface, for which you cannot find matching parts from 40 years ago!
Repair Broken Sewer Main The Trenchless Way
These days the old pipes can be re-lined from within reducing the pipe diameter by only 5%.
Epoxy Sewer Pipe Lining Repair – How It Works
First the old pipe is jet-cleaned to remove old scale and rust. Then a sewer pipe video inspection is done to determine how long the pipe is that has to be re-lined. Next the pipe re-lining material is cut to the right size and a special self-heating epoxy resin is rolled through the liner to wet it thoroughly. The liner also contains an “inner balloon”, which is inflated once the liner has been pulled into the old pipe. After 4 hours of curing time the balloon is removed and a video inspection is done to confirm the new inner pipe is smooth and hard.
How Much Does Epoxy Sewer Pipe Lining Repair Cost?
Usually for residential applications it will run $100-$150 per linear foot, which is about half the cost of excavation, pipe replacement, concrete restoration and tile replacement. The average 3 bed 2 bath house has a main line of about 40′, so the total pipe lining cost is $4000-$6000, and it only takes one day to install!