Sewage backing up in your basement floor drain. A sinkhole in the front yard right above where the line runs. A camera inspection on your home sale that turned up roots, a belly, or a collapsed clay pipe. These are the calls Wahl’s sewer department runs every week.

Sewer work is its own department at Wahl. It is not the same as drain cleaning, and it is not the same as water service line or gas service line work (those are separate departments too, with separate crews and separate equipment). Each one is its own discipline, and we staff each one with people who do it every day. Most Pittsburgh contractors lump everything underground into one crew. We don’t.

What sewer work actually means

Your home’s sewer system has two main parts:

• The building drain. The horizontal pipe running through your basement floor (or under the slab) that collects all the wastewater from your fixtures and routes it out to the sewer line.
• The sewer lateral. The pipe running from the building drain, out under your yard, to the city sewer main in the street (or to your septic tank, if you’re outside city service).

When something is wrong with either of those, it’s a sewer problem. When something is wrong with the line between your kitchen sink and the building drain, that’s a drain problem and we handle it differently. Sewer work means digging, lining, or replacing the pipe that carries waste out of your home. It’s the big stuff.

What Wahl does in the sewer department

• Sewer line replacement. Full lateral replacement, open-cut or trenchless. The right call when the existing line is too damaged for liner work or when there’s a complete collapse.
• Trenchless CIPP lining. Cured-in-place pipe. We pull a resin-saturated liner through the existing line, inflate it, and cure it into a new pipe inside the old one. No yard destruction.
• Spot repair. Targeted excavation at a single failure point (a crushed section, a broken fitting, a root intrusion at one joint). The right call when the rest of the line is sound.
• Camera inspection. High-resolution camera run from a cleanout, with locator, depth marking, and video provided to you. Often the first step on any sewer job, and a standard pre-purchase home inspection add-on.
• Drain cleaning (cabling and hydro jetting). The maintenance side. Roots, grease, paper buildup, and minor obstructions cleared without digging.
• Concrete and yard restoration. When the job requires open-cut work, we restore what we dug up. Tiered restoration options spelled out in writing.
• Rough-in for new construction and major renovation. When a home is gutted to the studs or being built new, our sewer crew handles the underground work.

If you don’t know which one you need, start with a camera inspection. It tells us (and you) exactly what’s going on before any money goes into repair work.

Why Pittsburgh’s sewer lines fail

Pittsburgh has some of the oldest housing stock in the United States. A lot of our city was built between 1880 and 1940. The original sewer laterals in those homes were:

• Vitrified clay pipe (VCP). Brown or buff-colored clay pipe, sectioned in 2 to 3-foot lengths joined with mortar. Strong but brittle. Roots find the joints, mortar dissolves, sections crack from soil shift.
• Cast iron. Black-coated iron pipe, common in homes built 1900 to 1960. Rusts from the inside out. Eventually develops pinholes, then larger holes, then full collapse at the bottom of the pipe.
• Orangeburg. Pressed-paper pipe with asphalt impregnation, used 1940s through 1970s. Tar paper, essentially. Deforms, ovals out, and collapses unpredictably.
• Early PVC. 1970s and 1980s. Generally sound but with weak joints that root through over decades.

Most of those failure modes are slow and predictable. The combination of Pittsburgh’s clay soil, mature trees, freeze-thaw cycles, and the natural lifespan of these materials means most Pittsburgh homes built before 1960 will need sewer work at some point.

How to tell you might have a sewer problem

• Slow drains in multiple fixtures (not just one). Means the obstruction is downstream of the individual fixture traps, in the main line.
• Gurgling or burping from drains when you flush a toilet or run a washing machine.
• Wet spots, depressions, or unusually green grass in a line above the sewer lateral.
• Sewage backup in the lowest fixture (basement floor drain, basement bathroom).
• A smell of sewage in the yard or around the foundation.
• A bill of sale or a home inspection report that flags the sewer.

If you’re seeing any of these, schedule a camera inspection. It’s the cheapest diagnostic in plumbing and it answers the question definitively.

How we decide between options

There’s no one-size-fits-all answer in sewer work. Wahl’s process:

1. Camera the line. We see exactly what’s wrong, where, and how bad.
2. Locate and depth-mark. Where is the failure relative to the surface? How deep is it? What’s above it (driveway, sidewalk, landscaping, deck, the house itself)?
3. Build three options. Almost every sewer job has a spot repair option, a lining option, and a full replacement option. We price all three on paper, side by side, and walk you through the trade-offs.
4. You pick. With our honest read on which one we’d choose in your shoes.

The wrong instinct is to default to the cheapest option. Sometimes the cheapest option is the right one (clean spot repair on an otherwise sound line). Sometimes it’s the most expensive thing you’ll ever do, because the rest of the line fails six months later and the second job costs more than doing it right the first time.

Pricing reality

We present exact pricing in your home after a free in-home estimate. Sewer work has the widest investment range of anything we do, because no two jobs are alike. Tiers below show relative investment, not real numbers.

• Camera inspection: entry tier ($), often credited to a repair job if you proceed within 30 days.
• Drain cabling / cleaning: entry tier ($).
• Hydro jetting: entry to lower-mid tier ($ to $$).
• Spot repair (single excavation, 4 to 6 ft section): mid tier ($$).
• CIPP liner (40 to 80 ft typical lateral): upper-mid to upper tier ($$$).
• Full open-cut replacement (40 to 80 ft, average depth): upper tier ($$$$).
• Full replacement with sidewalk, driveway, or street disruption: flagship tier ($$$$).

Part of our process is presenting numbers in person, on paper, with the scope, the restoration tier (see concrete and yard restoration), permit costs, and what’s included all spelled out. No surprises mid-job.

Permits and Pittsburgh-specific compliance

Sewer line work requires a permit in every Pittsburgh municipality we serve, and most require a city plumbing inspector to witness key steps. Wahl handles all of it. Specifics that matter:

• Pittsburgh Water and Sewer Authority (PWSA) has its own connection and inspection rules in the city.
• Allegheny County Sanitary Authority (ALCOSAN) governs the major sewer mains and treatment.
• Individual municipalities (Mt. Lebanon, Bethel Park, Robinson, Moon, etc.) each have their own permit process.
• Some PA municipalities require dye testing at home sale, where colored dye is flushed through your plumbing to confirm the line goes to the sanitary sewer (not storm). We do dye testing.

We pull every permit, schedule every inspection, and meet every inspector. You don’t.