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New Castle County · DE

Water damage help in Wilmington, DE

Wilmington is built between two waterways, the Brandywine Creek and the tidal Christina River. Row houses share walls, basements sit close to the water table, and a leak in one home often becomes a problem for the one next door.
  • Areas: Trolley Square, Forty Acres, Brandywine Village, Southbridge
  • 22 ZIP codes covered
  • Free referral, no obligation
Flooded residential street during heavy rain
Stock photo

Homes in Wilmington and how they leak

Most of the city is brick row houses and twins from the late 1800s and early 1900s, with stone or brick basements and flat or low-slope roofs. Trolley Square, Forty Acres and the Highlands have larger homes of the same age. Plumbing and roofs have usually been replaced in stages, so old cast iron and galvanized pipe are still common inside the walls.

Local issues that cause water damage

Brandywine flooding

The remnants of Hurricane Ida in September 2021 pushed the Brandywine to a record level and flooded homes in northeast Wilmington. See flood cleanup.

Tidal and sewer flooding in Southbridge

Southbridge is low and sits beside the Christina. High tides combined with rain fill the streets and can push combined-sewer water back into basements.

Flat-roof and party-wall leaks

Clogged roof drains and failed flashing between attached houses let water run down inside shared walls, where it can go unnoticed for weeks.

Common calls in Wilmington

Also available: emergency water damage steps and all water damage services.

Wilmington at a glance

County or area
New Castle County
Neighborhoods
Trolley Square, Forty Acres, Brandywine Village, Southbridge, Highlands
ZIP codes covered
19801, 19802, 19803, 19804, 19805, 19806, 19807, 19808, 19809, 19810, 19850, 19880, 19884, 19885, 19886, 19890, 19893, 19894, 19895, 19896, 19898, 19899
Who does the work
Independent local restoration companies

Questions from Wilmington homeowners

Water is coming through the wall I share with my neighbor. What now?

Tell your neighbor right away, because the source may be on their side or on the shared roof. Photograph the damage and notify your insurer. Each owner's policy normally covers their own side.

My Wilmington basement floods when it rains hard. Is that a flood claim?

It depends on the source. Surface water or a rising creek is flood, covered only by flood insurance. A sewer or drain backup is covered only if your homeowners policy has a water backup endorsement.

How long does a stone basement take to dry?

Longer than a framed room. Stone and old brick hold a lot of water and release it slowly, so drying is measured with meters over days rather than judged by how the surface feels.

Other cities we cover

See how Delaware's weather, housing and rules affect water damage on the Delaware page.

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