When it's time to
replace your sewer, you might want to order a trenchless replacement and avoid that big gash in your yard and the large fee that goes with it. Just two incisions into the earth, one at the start and one at the finish of the broken sewer, and the plumbing company will pull a fiberglass tube through the sewer line and fix it to the inside of the existing line, forming, in effect, a strong new open sewer. That's got to cost less than a trench sewer repair job, which requires hiring heavy duty equipment to dig a deep trench into the ground and then later fill it back up. Furthermore, with the trenchless repair you can save the wear and tear on your prized, barbered green lawn.
Truthfully, there are times when a trenchless sewer replacement will go easy on the cash. On the other hand, often a trenchless repair will mean more money in the end. Why, because video inspection of the sewer line, cleaning it out, video inspection again to make sure the interior surface is clean, applying glue to the fiberglass tube, using a forced air machine to turn it inside out and run it through the length of the sewer being replaced, applying pressure to force the outside of the new tube against the inside of the old sewer line, and then video inspecting the new line is a complex procedure that costs a lot of money. If you just compare the cost of the trenchless replacement with the cost of digging the trench for the same sewer segment, you'll learn that the trenchless job runs 30%-50% more.
If trenchless repair is so expensive, why is the approach so popular. The answer is that when a sewer trench involves tearing up a costly structure, the total cost of the repair also includes the cost of replacing the above ground structure that was destroyed.
As a general rule of thumb if the cost of repairing above ground structures will run 30-50% more than the cost of digging the trench then a trenchless repair begins to make financial sense. To get a precise comparison of the cost you will need to get estimates for both types of repair jobs from the companies willing to do them.
You need to avoid several traps when making your decision. First off some companies will paint a picture of how a trench repair will tear up your lawn. This isn't the case. Experienced excavating companies will very carefully remove your sod and replace it after filling up the trench. With a competent company, you will hardly notice the difference between your lawn before and after. Companies might also claim that the presence of a tree or other relatively small obstructing structure sitting over the sewer necessitates a trenchless repair. Plumbing companies can often dig around obstructions, if they are not too large, and complete the trench without having to pay for above ground repair.
On the other hand if a sewer line runs under a dwelling, other large building or fixed structure, or expensive item such as a driveway or costly patio, it probably makes sense to choose a trenchless repair. In these circumstances above ground repair will be costly or nearly impossible, and a trenchless repair is a beter option .
You should carefully inquire about guarantees that each company is willing to offer before deciding on the type of repair you want to order. Trenchless repair companies will usually offer anywhere from 10-50 years against root invasion. Against this, trench repairs lay down PVC pipe and will often come with a lifetime guarantee against root invasion. 10 years compared to life is a significant difference and important to take into consideration. On the other hand, a pipe buster trenchless repair, in which an HDPR pipe is pulled into the sewer line behind a pipe buster machine that busts up the old pipe, offers a lifetime guarantee on their pipes, because they are equal to or superior to the PVC pipe.
There are other considerations, such as the possibility of water pooling in the pipe, which need be taken into account when considering a trenchless repair. To learn about these problems, you should consult your plumber. Complete thinking about all the considerations will ensure that you are happy with the final decision. Both trench and trenchless repairs will bring excellent results and either type of repair will provide years of good sewer drainage.
1st Choice Plumbing Inc.
Google+
Resources: For a sewer replacement by experienced licensed plumbers in the greater Baltimore area call 1st Choice Plumbing Inc. 3502 Taney Road, Baltimore, Md. at 410-697-6547.