New and replacement gravity sewer laterals and building sewers for homes, ADUs and commercial sites — excavated, set to grade, inspected and restored.
If the building drains downhill to the sewer main with enough fall, a gravity lateral is the simplest and longest-lasting system — no pumps, no power, no alarms.
Gravity sewer has to keep a steady downhill slope from the building to the tie-in — typically 1/4″ per foot (2%) for a 4″ building sewer, with code allowing less in some larger sizes. We confirm the invert depth at the main and the building before we dig.
Grade Checked Before We DigIf the building sits at or below the sewer, or the run is too long to hold fall, gravity isn’t an option. That’s when a grinder pump system and force main are the answer.
Low & Uphill Sites → Pump SystemOpen trench excavation to depth, with shoring where required, utility potholing and spoils handling.
OSHA Shoring ContractorSDR 35 / Sch 40 sewer pipe laid on bedding and set to grade, with fittings, wyes and long sweeps where needed.
Laser-Set GradeTwo-way cleanouts at the building and property line, plus additional cleanouts at bends and long runs per code.
Per City & District CodeConnection to the existing lateral, wye or sewer main, coordinated with the city or sanitary district.
City & District PermitsInspections with the city or district, and CCTV of the finished line when required.
City & District InspectionCompacted backfill and restoration of asphalt, concrete and landscape at the trench.
Asphalt & Concrete“Very tight quarters to do the boring and it was no problem for Dave. Work site was back to its original condition before they left for the day.”
“He was careful to minimize the damage to the patio and set aside the removed pavers in a neat stack… helped me navigate the process with PG&E.”
“Able to start on the job immediately… and dig underneath a retaining wall without damaging it. He has a deep understanding of the PG&E Greenbook.”
Send us the address, the distance to the sewer main and what’s in the way — driveway, lawn, hardscape. We’ll check grade and quote it fast.