New Hampshire Boiler, Hot-Water Heating & Steamfitting Contractor

Yes, executing commercial or residential boiler & steamfitting contractor projects in New Hampshire legally requires an active state contractor license issued by the New Hampshire Office of Professional Licensure and Certification under New Hampshire Revised Statutes RSA 319-C & RSA 329-A. Performing contracting services without official board credentials triggers immediate stop-work orders, statutory fines, and civil citations.

Boiler, Hot-Water Heating & Steamfitting Contractor installations in New Hampshire must strictly adhere to the EPA Clean Air Act Section 608 Universal Certification & ASHRAE Standards 15/34. In addition, all completed work and materials must satisfy ACCA Manual J (heat load), Manual S (equipment selection), and Manual D (duct design) protocols to pass municipal building inspection.

Boiler & Steamfitting contractors in New Hampshire typically must maintain a minimum of $2,000,000 Each Occurrence / $4,000,000 General Aggregate in commercial general liability insurance. Under New Hampshire statutory rules and General Contractor (GC) bid standards, policies must cover bodily injury, property damage, and completed operations to secure jobsite clearance.

A New Hampshire boiler & steamfitting contractor license bond costs between $220 and $330 per year for contractors with standard credit, satisfying the statutory $10,000 - $25,000 bond requirement. High-risk credit profiles range from $396 to $550 annually. Premium rates are calculated as a percentage of the total bond penal sum.

Yes, proof of active workers' compensation insurance is required for construction employers in New Hampshire. Under N.H. Rev. Stat. Ann. § 281-A:2 & § 281-A:5, coverage is mandatory for all employers with 1+ employees (full-time or part-time). General Contractors and municipal building inspectors mandate a Certificate of Insurance (COI) prior to jobsite access. Sole proprietors with 0 employees: Sole proprietors with 0 employees exempt under RSA 281-A:2(VI); commercial GCs require Certificate of Insurance or signed exemption.

Yes, New Hampshire maintains formal reciprocal licensing agreements with VT, ME, MA for qualified boiler & steamfitting contractor applicants. Out-of-state contractors in good standing under equivalent statutory frameworks can apply to waive trade exams, though state law and business rules testing may still apply.