Summary
Operating as an HVAC contractor in Columbus, Franklin County requires both state and local compliance. At the state level, you must obtain an Ohio HVAC Contractor License through the Department of Commerce, which involves demonstrating experience, passing examinations, and maintaining continuing education. The city of Columbus requires mechanical permits for most HVAC work, which can be obtained through their online PermitOhio system, with inspections required before project completion. Insurance requirements include general liability coverage and workers' compensation if you have employees, with many clients requiring higher coverage limits. Success in the Columbus market depends on maintaining all required certifications, following proper permitting procedures, and staying current with both state licensing requirements and local building codes.
License Requirements
Ohio requires HVAC contractors to obtain a license through the Ohio Department of Commerce, Division of Industrial Compliance and Labor. You need an HVAC Contractor License (Class I for unlimited work, Class II for systems under 15 tons). Requirements include: 4 years experience or approved education, pass the trade and business/law exams, maintain continuing education (10 hours every 3 years), and renew license every 3 years. Franklin County and City of Columbus require additional registration and may require local business licenses. Technicians working on refrigeration systems need EPA Section 608 certification.
Permit Requirements
Columbus Building Division requires permits for HVAC installations, replacements, and major repairs. New installations and equipment replacements require mechanical permits ($50-150 base fee plus $8 per $1,000 of project value). Ductwork modifications, gas line connections, and electrical connections may require separate permits. Applications can be submitted online through the city's PermitOhio system. Typical approval timeline is 3-5 business days for standard residential work, 1-2 weeks for commercial projects. All work requires inspection before final approval.
Insurance Requirements
Ohio requires minimum $100,000 general liability insurance for HVAC contractors. Workers' compensation insurance is mandatory if you have employees (rates vary by classification, typically $3-8 per $100 of payroll). Some municipalities and commercial clients require higher liability limits ($500,000-$1,000,000). Surety bond requirements vary by project type - public works projects often require performance and payment bonds equal to 100% of contract value. Vehicle insurance with commercial coverage is required for work trucks.
Typical Cost Ranges
Columbus area HVAC project costs: Residential furnace installation $2,500-$6,000, central AC unit $3,000-$7,500, complete HVAC system replacement $5,000-$15,000, ductwork installation/replacement $2,000-$8,000, heat pump installation $4,000-$10,000. Commercial projects range from $5,000-$50,000+ depending on system size and complexity. Service calls typically $75-$150, with hourly rates $80-$120. Permit fees generally add $100-$500 to residential projects.
Compliance Checklist
- ✓Obtain Ohio HVAC Contractor License from Department of Commerce
- ✓Register business with Franklin County and obtain Columbus business license if required
- ✓Secure general liability insurance ($100,000 minimum) and workers' compensation
- ✓Ensure all technicians have EPA Section 608 refrigerant handling certification
- ✓Apply for appropriate mechanical permits through Columbus PermitOhio system
- ✓Schedule required inspections with Columbus Building Division
- ✓Maintain current license renewal and continuing education requirements
- ✓Verify gas line work compliance with Columbia Gas utility requirements