Plumbing Services in Wilmington, DE

Plumbing in Wilmington at a glanceWilmington’s older neighborhoods — Trolley Square, the Little Italy area, Hilltop and the East Side — are lined with brick row houses and twins from the late 1800s and early 1900s. Most have basements, cast iron drain stacks, galvanized supply lines and clay or cast iron laterals running under sidewalks to the street.

The City of Wilmington supplies water drawn largely from the Brandywine Creek, and older parts of the city are served by combined sewers that carry stormwater and sewage together, so heavy rain can push water back into basements. Winters bring freezes that split pipes in exterior walls and unheated rear additions, and the area’s humid summers bring intense thunderstorms.

Double stainless kitchen sink beneath a window

Housing & construction

Brick row houses and twins in older neighborhoods, larger historic homes near Rockford Park, and suburban homes in New Castle County.

Plumbing services in Wilmington

Utility crew excavating a street to reach a broken water line

Sewer Line Repair in Wilmington

Under-sidewalk laterals

Wilmington sewer line repair →

Wrench tightening a fitting on metal piping

Pipe Repair in Wilmington

Rear-addition freezes

Wilmington pipe repair →

Also common in Wilmington: drain cleaning, water heater repair.

What makes Wilmington plumbing different

Row-house plumbing

Century-old cast iron and galvanized systems in shared-wall homes.

Combined sewers

Storm-driven basement backups in older neighborhoods.

City water from the Brandywine

Water quality questions go to the city’s utility.

Rear additions

Kitchens and baths in rear additions often have poorly insulated pipes.

Seasonal plumbing calendar for Wilmington

WinterInsulate pipes in rear additions and along exterior walls.
Summer thunderstormsCheck backwater protection and floor drains before heavy rain.

Plumbing emergency in Wilmington?

Close the main water shutoff, or the fixture valve if the problem is in one place.
Stay away from water near outlets or the electrical panel.
For sewage backups, stop using all drains.
If you smell gas, leave and call the gas utility or 911 from outside.

Call (866) 417-0220

Wilmington plumbing questions

Where does Wilmington’s water come from?

The city draws water largely from the Brandywine Creek and treats it before distribution.

Why does my Wilmington basement flood in storms?

Older neighborhoods use combined sewers that can surcharge in heavy rain; a backwater valve helps protect the basement.

Do Wilmington row houses need repiping?

Many still have galvanized supply; low pressure and rusty water are common signs it’s time.

Nearby service areas

We also serve communities around Wilmington, including Newark, New Castle, Elsmere, Claymont, Bear, Hockessin.

Philadelphia Baltimore Delaware