Plumbing contractors in
Derry, New Hampshire.
A public directory of plumbing contractor businesses serving greater Derry. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
Plumbing jobs in Derry
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Common Job Costs
Licensing Requirements
Licensing Requirements
NH requires journeyman plumber license through State Board of Plumbing. Must complete 4-year apprenticeship or equivalent experience, pass written exam, submit application with fees. Master plumber license requires additional 2 years experience and separate exam. Licenses renew every 2 years with continuing education requirements.
Permit Requirements
Derry Building Department requires permits for water heater replacement, fixture installation, new plumbing lines. Permit fees range $25-75. Must be pulled by licensed contractor.
Inspection Schedule
Rough-in inspection before concealment, final inspection upon completion. 48-hour notice required for scheduling with Derry Building Department.
Insurance Minimums
General liability minimum $300,000 per occurrence, $600,000 aggregate. Workers compensation required for employees. Many contractors carry $1M+ for commercial work.
Local market snapshot
Source: DoorBase, aggregated public ZIP-level data. Updated 7/17/2026.
How to Get Licensed
Complete apprenticeship
Complete 4-year registered apprenticeship program or document equivalent 8,000 hours of supervised plumbing experience under licensed plumber
Submit application
File application with NH State Board of Plumbing including proof of experience, high school diploma or equivalent, and $60 application fee
Pass written exam
Schedule and pass journeyman plumber examination covering plumbing codes, safety, and trade practices. Exam fee included in application
Obtain insurance
Secure general liability insurance meeting state minimums and workers compensation if employing others
Register with municipality
Register business license with Derry if establishing local operations and obtain any required local permits
Maintain license
Renew license every 2 years with continuing education credits and renewal fees to maintain active status
About This Market
Derry's plumber market serves a mix of residential and light commercial work, with steady demand from the town's 33,000+ residents and aging housing stock. Competition is moderate with established local contractors dominating repeat business. Emergency calls drive premium rates, while routine maintenance and fixture work operates on tighter margins. Winter freeze-ups and spring pipe failures create seasonal surges that separate busy shops from struggling ones. Getting licensed in New Hampshire takes commitment — the apprenticeship requirement weeds out casual players, and the state board doesn't mess around with enforcement. Derry's permit process is straightforward but required for most jobs beyond basic repairs. Build relationships with the building department early and know your inspection triggers. Winter work pays best but tests your skills and equipment. Smart contractors stock freeze repair materials by October and charge accordingly for emergency calls. The market rewards reliability over rock-bottom pricing.
- Median hourly wageBureau of Labor Statistics Occupational Employment Statistics
- Licensed establishments countU.S. Census County Business Patterns
- Licensing requirementsNew Hampshire State Board of Plumbing
- Permit requirementsDerry Building Department
- Insurance requirementsNew Hampshire Department of Labor
Frequently Asked Questions
What does a plumber license cost in New Hampshire?
Initial journeyman license fee is $60, master plumber license is $80. Renewal every 2 years costs $50 for journeyman, $60 for master, plus continuing education fees typically $100-200 annually.
How long does it take to get a plumber permit in Derry?
Standard permits issued within 2-3 business days if application is complete. Emergency permits available same day with approval from building official for urgent repairs.
What's the average plumber wage in New Hampshire?
According to Bureau of Labor Statistics data, median hourly wage is $31.84 per hour or $66,227 annually. Experienced contractors and emergency service providers typically earn significantly more.
Do I need a permit for water heater replacement in Derry?
Yes, water heater replacement requires a plumbing permit from Derry Building Department. Permit fee is typically $50-75, and final inspection is required before system can be activated.
How many licensed plumber contractors operate in New Hampshire?
Census data shows approximately 720 licensed plumbing establishments statewide. Derry market area served by roughly 15-20 active contractors based on local permit records.
Plumbing contractors in Derry
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