Drain Excavation in Smyrna, GA

Repair the old path or build a new one?

When a drain fails under a slab, the obvious plan is to open the floor over the break and replace the damaged section in place. Most of the time that is the right answer. Now and then, though, the old route runs under so much finished floor, cabinetry or tile, or has failed in so many spots, that digging along it would mean taking a house apart. In those cases a reroute may serve better: the old line is abandoned, and a new drain is laid along a different path that is easier to reach. Drain excavation still happens, but the trench goes somewhere more convenient. Anyone in Smyrna facing a big under-slab repair can fairly ask whether rerouting was considered.

When a new route can make sense

• The damaged line runs a long way under finished rooms before it leaves the house
• The camera shows several breaks, sags or corroded areas along the same run
• The fixtures it serves sit near an outside wall, a garage or a crawlspace
• Reaching the old pipe would mean removing cabinets, built-ins or large areas of tile

When it does not

A drain has to slope downhill all the way to the sewer, and that is the main limit on any reroute. If a new path around the house would lack enough fall, or would have to climb before it descends, it will not work. Fixtures in the middle of a slab house are hard to reroute without long runs through walls or floors anyway. Exterior piping, venting and appearance also play a part. When the break sits in one spot under a floor that is easy to patch, a plain repair in place is usually simpler.

Planning the alternative route

A reroute starts with good information. Video from a sewer camera inspection maps the existing line and its defects, and a locator marks its depth at key points. Measuring the elevation of each fixture drain, and of the point where the new line would join the existing drain or sewer, shows how much fall is available. With that, the possible routes can be sketched and compared: how many feet of trench, how much wall or floor would be opened, and how each fixture would be trapped and vented on the new line.

What happens to the old pipe

An abandoned drain is usually left in the ground rather than dug out, since removing it would defeat the purpose. What matters is that it is properly capped where it meets the active system, so wastewater cannot wander into it and sewer gas or pests cannot travel through it. Any cleanouts on the old line are removed or sealed, and the change is noted in the house records so future plumbers are not puzzled by a pipe that goes nowhere.

Permits in Smyrna

Permit applications in Smyrna go through the Community Development Department. Owners may pull a permit only for the house that is their permanent home, so a landlord rerouting a drain in a rental generally needs a contractor holding a Georgia license. If a reroute ends with a new building sewer connection, the city code calls for a city representative to be present for its connection and testing, and that part of the job falls under sewer excavation.

Questions about rerouting a drain

Is rerouting cheaper than repairing under the slab?

Not automatically. It can save a great deal of floor demolition and restoration when the old line runs under finished rooms, but it adds new pipe, trenching and sometimes wall work of its own. A fair comparison weighs the full scope of each option, including everything that has to be rebuilt afterward, rather than the plumbing alone.

Will a rerouted drain work as well as the original?

It should, as long as it has proper slope, the right pipe size, a trap at each fixture and correct venting. A rerouted line is new pipe, often with fewer joints and easier access than the one it replaces. Adding a cleanout along the new route makes future maintenance simpler still.

Does a reroute take longer than a repair in place?

In plumbing hours, often yes, because there is more new pipe to lay and more connections to make. In disruption, it is often the reverse: the house may never have a room torn up, and the old line keeps working until the new one is ready to take over. The camera map and the planned route give a realistic schedule for both options.

Weigh both routes before anyone cuts

Facing a large under-slab drain repair at your Smyrna home? Call (404) 409-4448, and we will lay out the repair-in-place and reroute options side by side so you can choose with the full picture. Smaller problems with fixture drains are handled through drain repair.