Licensed HVAC contracting with service rates of $70-$125/hour.
Starting an HVAC business in New Hampshire requires proper licensing, EPA certification, and significant investment in specialized tools and equipment. NH Mechanical Licensing Board oversees HVAC licensing. Heating systems drive the majority of service calls, especially in winter. Startup costs range from $21,200 for a solo operator to $106,000+ for a fully equipped operation. No state income tax in New Hampshire boosts your take-home profit. HVAC is a high-demand trade with strong earnings—contractors in New Hampshire charge $70-$125/hour, with system installations generating $3,000-$15,000+ per job.
Any HVAC technician who maintains, services, or disposes of equipment containing refrigerants must hold EPA Section 608 certification. Violations carry fines up to $44,539 per day.
The EPA is phasing down HFC refrigerants under the AIM Act. Stay current on which refrigerants are available and train on new alternatives. This is both a challenge and business opportunity.
| Item | Low | High | Magnitude |
|---|---|---|---|
| HVAC License & Exams New Hampshire licensing fees | $200 | $800 | |
| EPA 608 Certification Federal requirement for refrigerant handling | $0 | $200 | |
| LLC Filing New Hampshire LLC registration | $100 | $100 | |
| General Liability Insurance Annual, $1M coverage | $530 | $2,650 | |
| Workers Compensation Insurance Required if hiring | $2,650 | $6,360 | |
| Commercial Auto Insurance Annual coverage | $1,590 | $3,180 | |
| Service Vehicle Van or truck with racking | $10,600 | $47,700 | |
| HVAC Tools & Gauges Manifold gauges, vacuum pump, recovery unit | $3,180 | $8,480 | |
| Refrigerant Recovery Equipment EPA-compliant recovery machine | $1,060 | $3,180 | |
| Sheet Metal Tools Snips, crimpers, duct tools | $530 | $2,120 | |
| Diagnostic Equipment Combustion analyzer, manometer, leak detector | $530 | $3,180 | |
| Surety Bond Required in some states | $0 | $15,900 | |
| Marketing & Website SEO and Google Ads critical | $530 | $2,650 | |
| Startup range | $21,200 | $106,000 |
The line items above are the main cost drivers, not an exhaustive sum. Several are alternatives rather than additions — a mobile setup or a storefront, a rented kitchen or a build-out — so they are not added together. The startup range is the figure used across this page.
NH Mechanical Licensing Board. Gas fitter and HVAC licensing through Mechanical Licensing Board. Exam + experience.
Federal requirement to handle refrigerants. Universal type recommended.
Industry certification that boosts credibility with manufacturers and customers
New Hampshire Secretary of State
Required by most clients and manufacturers
Required in New Hampshire if you have employees
| # | City | Note |
|---|---|---|
| 01 | Manchester Manchester offers strong HVAC demand. With 115K residents it is the largest of the three markets listed for New Hampshire. | Manchester offers strong HVAC demand. With 115K residents it is the largest of the three markets listed for New Hampshire. |
| 02 | Nashua Nashua offers strong HVAC demand. With 90K residents it is the second largest of the three listed markets, about three-quarters the size of Manchester. | Nashua offers strong HVAC demand. With 90K residents it is the second largest of the three listed markets, about three-quarters the size of Manchester. |
| 03 | Concord Concord offers strong HVAC demand. With 45K residents it is the third largest of the three listed markets, about a third the size of Manchester, and the state capital. | Concord offers strong HVAC demand. With 45K residents it is the third largest of the three listed markets, about a third the size of Manchester, and the state capital. |
Offer seasonal tune-up plans ($150-$300/year per system). This creates predictable revenue, fills slow seasons, and keeps your name top-of-mind when systems fail.
In New Hampshire, a broken AC in summer or furnace in winter is an emergency. 24/7 availability at premium rates ($150-$250 just to show up) builds reputation and revenue fast.
Becoming a Carrier, Trane, or Lennox authorized dealer gives you access to co-op marketing funds, warranty work, and manufacturer leads. This can transform your business.
IAQ products (air purifiers, UV lights, humidity control) are high-margin add-ons. Every service call is an opportunity to assess and recommend IAQ improvements.
Obtain your HVAC license through NH Mechanical Licensing Board. Gas fitter and HVAC licensing through Mechanical Licensing Board. Exam + experience. Also get your EPA 608 Universal certification—it's federally required to handle refrigerants.
Work for an established HVAC company for several years. Learn residential and commercial systems, diagnostics, and customer service. Build manufacturer relationships.
NATE (North American Technician Excellence) certification is industry standard. It opens doors with equipment manufacturers and gives customer confidence.
File LLC ($100) with New Hampshire Secretary of State. Get EIN from IRS. Open business bank account.
Secure general liability, commercial auto, and workers comp. HVAC work carries significant risk—gas lines, electrical, and refrigerants. Proper insurance is essential.
Invest in a service van with proper tool storage. Stock essential HVAC tools: manifold gauges, vacuum pump, recovery unit, multimeter, combustion analyzer. Budget $10,000-$20,000 for tools.
Become authorized dealer/installer for major brands (Carrier, Trane, Lennox, etc.). This gives you access to warranty work, leads, and trade pricing.
Google Business Profile is your #1 lead source. Heating systems drive the majority of service calls, especially in winter. Focus on emergency repair service initially—installations follow once you have reputation and reviews.