Drain Cleaning in Dallas, TX

The Blackland Prairie soil under Dallas is among the most expansive in the country. Slab foundations rise and fall with it, and the drain lines underneath bend, crack and pull apart at joints. Foundation repair and plumbing repair often go hand in hand here.

Older neighborhoods such as Oak Cliff, Lakewood, M Streets, Munger Place, Winnetka Heights and Kessler Park have homes from the 1910s through the 1940s, many on pier-and-beam foundations with clay laterals beneath century-old pecans, elms and live oaks.

Postwar neighborhoods like Lake Highlands, Preston Hollow, Pleasant Grove and much of North Dallas were built from the late 1940s through the 1970s on slabs, with cast iron drains underneath. Those pipes are now fifty to seventy years old.

Far North Dallas and newer infill have PVC drains. Calls there are mostly kitchen grease, wipes and lint, though slab movement can still crack plastic fittings.

Dallas summers are brutally hot, and summer droughts are when the clay shrinks most. Foundation watering programs and soaker hoses are common sights for good reason.

Dallas Water Utilities runs the city's wastewater system and treatment plants. The property owner is responsible for the sewer service line from the house to the city main, including the cleanout.

July through September is drought season, and the clay shrinks away from pipes, cracking cast iron and opening joints. Roots chase moisture into any gap.

Spring thunderstorms can drop heavy rain fast, and the clay swells again, shifting slabs back. Winter cold snaps, like the 2021 freeze, can burst exposed pipes.

Blackland Prairie clay can swell several inches when wet and crack open when dry. Under a slab, that movement bends pipes. Under a yard, it pulls lateral joints apart. Keeping soil moisture steady around the foundation in summer with soaker hoses helps protect both the slab and the drains. If you see new cracks in drywall or doors that won't close, have the plumbing checked too.

Oak Cliff, Winnetka Heights and Kessler Park, along with Lakewood, the M Streets and Munger Place east of downtown, are full of homes from the early twentieth century. Many are pier-and-beam, which makes under-house plumbing easier to reach. Yard laterals are often clay under massive old trees, and roots are routine. Lining is popular here because it avoids digging up historic yards.

Lake Highlands, Preston Hollow, much of North Dallas and southeast Dallas were built between the late 1940s and 1970s. Cast iron drains under those slabs have been corroding for decades, and clay movement adds cracks. When a camera shows the bottom of the pipe rotting away, lining or rerouting the drain may be the answer.

Foundation repair is a big industry in Dallas, and lifting a slab back to level can crack the pipes beneath it. Many foundation companies require a plumbing test before and after. If your home has had foundation work, mention it when you call.

In late August, after weeks over 100 degrees, a homeowner in Lake Highlands notices a sewer smell in the master bath and a new crack in the tile. The plumber clears the main, then runs a camera and finds a broken cast iron joint under the slab, likely from the clay shrinking. A hydrostatic test confirms the leak, and the family gets quotes for a tunnel repair.

Dallas cooks a lot of brisket, ribs and fried food, and that fat ends up in drains more often than it should. Let grease cool, pour it into a can and throw it away. Wipe pans before washing.

Spring and fall storms can dump inches of rain in an hour, overloading sewers. Water can back up into low drains. A backwater valve on the service line helps protect homes that have had storm backups.

Dallas has a huge rental market, from older duplexes in East Dallas to large complexes in North Dallas. Shared lines in apartments carry grease and wipes from many units. Property managers who jet main lines on a schedule avoid most emergency calls.

Neighborhoods near the Trinity River levees and across much of southern Dallas sit on low, heavy clay that stays wet long after a storm. Older homes there often have clay laterals that have settled into bellies, and roots from hackberries and cottonwoods find every gap.

Give your neighborhood and the home's age, whether it's on a slab or pier-and-beam, and whether there's been foundation work. Mention big trees near the sewer path and whether the trouble started during a drought or after heavy rain.