Plumbing contractors in
Dover, Delaware.
A public directory of plumbing contractor businesses serving greater Dover. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
Plumbing jobs in Dover
0 open jobs in Dover.
The controlled job pilot is not open yet.
Common Job Costs
Licensing Requirements
Licensing Requirements
Delaware requires Master Plumber license through Division of Professional Regulation. Must pass state exam, have 4 years experience or apprenticeship completion, and maintain continuing education. Journeyman license requires 2 years experience. Licenses renew every 2 years with 8 hours continuing education.
Permit Requirements
Plumbing permits required through Dover Building Department for new installations, water heater replacements, and major repairs. Permit fees range $50-200 based on scope. Same-day permits available for emergency repairs.
Inspection Schedule
Rough-in inspection before covering work, final inspection upon completion. Schedule 24 hours in advance. Water heater installations require inspection within 48 hours of completion.
Insurance Minimums
Delaware requires $300,000 general liability insurance minimum for licensed plumbers. Workers compensation required if employing others. Bonding requirements vary by municipality.
Local market snapshot
Source: DoorBase, aggregated public ZIP-level data. Updated 7/17/2026.
How to Get Licensed
Meet experience requirements
Complete 4 years of plumbing experience or approved apprenticeship program. Document all work experience with employment verification.
Submit application
File Master Plumber application with Delaware Division of Professional Regulation including fees, experience documentation, and background check.
Pass state examination
Schedule and pass the Delaware Master Plumber examination covering codes, regulations, and trade knowledge.
Obtain insurance and bonding
Secure required general liability insurance minimum $300,000 and any additional bonding required by municipalities.
Maintain license
Complete 8 hours continuing education every 2 years and submit renewal application with fees to maintain active license status.
About This Market
Dover's plumber market serves 38,000 residents plus state government facilities, creating steady demand. With 329 licensed establishments statewide, competition is moderate but Dover's government presence and older housing stock drive consistent work. Winter freeze damage, aging infrastructure in historic districts, and commercial state buildings generate the bulk of revenue. Labor costs track the BLS median of $32.75/hour, but emergency calls and specialized government work command premium rates. Delaware's licensing requirements are straightforward but strict - you need that Master Plumber ticket to pull permits and run jobs. Dover Building Department moves fast on permits if your paperwork's clean, and inspectors know their stuff. Winter's your money season when pipes freeze and heating systems fail. Government contracts require additional bonding and insurance above state minimums. Know the local supply houses and build relationships with property managers handling state facilities.
- Median hourly wage $32.75Bureau of Labor Statistics
- 329 licensed establishments in DEUS Census Bureau
- Licensing requirementsDelaware Division of Professional Regulation
- Permit requirementsDover Building Department
- Insurance minimumsDelaware Department of Insurance
Frequently Asked Questions
What license do I need to work as a plumber in Dover, DE?
Delaware requires a Master Plumber license to operate independently and pull permits. This requires passing the state exam, 4 years experience, and biennial renewal with continuing education through the Division of Professional Regulation.
How much do plumbers make in Delaware?
According to Bureau of Labor Statistics data, plumbers in Delaware earn a median wage of $32.75 per hour or $68,120 annually, with emergency and specialized work commanding higher rates.
Do I need permits for plumbing work in Dover?
Yes, Dover Building Department requires permits for new installations, water heater replacements, and major repairs. Permits range $50-200 and require licensed plumber to pull them.
How many plumbing contractors operate in Delaware?
Census data shows approximately 329 licensed plumbing establishments operate statewide in Delaware, creating moderate competition in the Dover market.
What insurance do plumbers need in Delaware?
Delaware mandates minimum $300,000 general liability insurance for licensed plumbers, plus workers compensation if employing staff. Government contracts may require higher coverage limits.
Plumbing contractors in Dover
No contractors listed yet.
Run your plumbing business on The Forge.
Apply to be listed on The Board for free. Manage leads, quotes, jobs, and follow-ups in one place, built for independent operators and growing crews.