The first step is to remove any outside structures or plantings from the area of excavation up to a minimum distance of 9 feet. Then a 3-foot-wide trench is dug down to the footing. The additional 6 feet is needed to temporarily place the excavated material. The wall is then power washed. All cracks are tuck pointed and sealed. The outside wall receives a cement parge coating. This coating is allowed to dry and then a thick tar sealer is applied. We highly recommend that while the trench is open you bring in a sewer jet cleaning company to clean out and inspect any existing drain tile that is not being replaced.
The next step is to install the replacement drain tile. It is important to choose a strong, crush-resistant drain pipe such as SDR 35. This drain tile is then installed with above ground cleanouts. The above ground cleanouts are vertical piping to allow for future servicing from above ground. The newly installed drain tile is then tied into the existing system. The entire outside trench is backfilled with schedule #57 limestone and then capped with 18” of dirt. The remaining dirt is hauled away and the site is cleaned up. Expect to see some settlement of dirt along the trench areas in the future.