Repiping · Wilmington, DE
Whole-House Repiping in Wilmington, DE
50% of homes in the Wilmington ZIP codes we cover were built before 1960, when galvanized steel supply pipe was standard. A whole-house repipe replaces it, usually with PEX or copper, in a few working days.
- Same-day service when a plumber is available
- 25 ZIP codes covered
- Quote before work
Why Wilmington homes get repiped
50% of homes in Wilmington's covered ZIP codes were built before 1960 (50%, above the Delaware figure of 21%). That ranks 1st highest of the 5 Delaware cities we profile. Homes of that age were plumbed with galvanized steel, which rusts from the inside until pressure drops and the water runs brown.
21% of the housing predates 1940. Many of those homes have had partial repairs over the decades, so it's common to find copper or PEX spliced into old galvanized runs, and those joints are where leaks start.
In Delaware: Winter cold is seasonal rather than severe, but pipes in crawl spaces and exterior walls still freeze during hard cold snaps.
Permits
A repipe normally needs a permit and inspection from your city or county, and the written quote should say whether wall patching is included.
Wilmington figures behind this page
- Built before 1940
- 21%
- Built 1940–1959
- 30%
- Built 1960–1979
- 28%
- Single-family detached
- 45%
What affects the price
- Number of bathrooms and fixtures
- Single story vs. two story
- Attic access and clearances
- Drywall patching and texture matching
The plumber quotes on site, before any work starts.
How the job works
Signs, the step-by-step process, cost factors and what you can safely do yourself are on our whole-house repiping guide. For the rest of Wilmington's plumbing picture, see plumbers in Wilmington and drains & sewer in Wilmington.
Whole-House Repiping in Wilmington: FAQ
How common is galvanized pipe in Wilmington?
It's likely in many of the 50% of local homes built before 1960 that haven't been repiped. Check where the main enters the house: galvanized is dull gray steel with threaded joints, and a magnet sticks to it.
Nearby
ZIP codes covered in Wilmington: 19801, 19802, 19803, 19804, 19805, 19806, 19807, 19808, 19809, 19810, 19850, 19880, 19884, 19885, 19886, 19890, 19891, 19892, 19893, 19894, 19895, 19896, 19897, 19898, 19899
Figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Wilmington; state comparisons use the Delaware statewide estimate.
Need whole-house repiping in Wilmington?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.