State
Delaware
Cities Covered
2
Typical whole-house 2-bath PEX repipe
$5,400 – $13,400
BLS plumber wage
$30.42/hr
Delaware water-quality & freeze drivers
- IECC climate zone: 4A — drives freeze-protection scope on supply lines
- Frost-line trench depth: 24-inch design minimum for buried water service
- Water hardness profile: Moderate (3.5–7 grains/gallon) — periodic appliance descaling recommended
- Dominant retrofit supply material: Type-L copper — dominant on retrofits in high-soft-water and pre-1990 housing stock
- Adopted plumbing code basis: International Plumbing Code (IPC) — ICC model adopted statewide
- Lead service line risk tier: Moderate — partial pre-1986 service line inventory under utility review
Delaware licensing & permits
- License status: Statewide license required
- License board: Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning & Refrigeration (official site)
- Permit: county plumbing permit required for new fixtures and service-line work
How plumbing and repipe costs vary in Delaware
State-specific code or insurance rule: Delaware uniquely combines plumbing, HVAC, and refrigeration into a single regulatory board under 24 Del. C. §1801 — a Master Plumber credential is issued by the same body that licenses HVAC and refrigeration mechanics, simplifying multi-trade contracting but requiring scope-specific endorsements rather than a single trade license.
Cities in Delaware
Compare plumbing and repipe pricing for 2 cities across Delaware.
Dover, DE
Compare local plumbing and repipe pricing in Dover.
Wilmington, DE
Compare local plumbing and repipe pricing in Wilmington.
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