HVAC contractors in
Green Bay, Wisconsin.
A public directory of hvac contractor businesses serving greater Green Bay. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
HVAC jobs in Green Bay
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Common Job Costs
Licensing Requirements
Licensing Requirements
Wisconsin requires HVAC contractors to hold a Master HVAC License through DSPS. Must complete 4-year apprenticeship or equivalent experience, pass written and practical exams, maintain $25,000 surety bond. License renewal every 2 years with 24 hours continuing education. Journeyman license available as intermediate step.
Permit Requirements
Green Bay requires mechanical permits for all HVAC installations, replacements, and major repairs. Permit fees range $50-200 based on project scope. Must be pulled before work begins.
Inspection Schedule
Rough-in inspection after installation before concealment, final inspection before system startup. 48-hour notice required for inspections through Green Bay Building Inspection Department.
Insurance Minimums
Wisconsin requires minimum $300,000 general liability insurance for HVAC contractors. Workers compensation mandatory for employees. Many municipalities and customers require $1 million coverage.
Compliance research unavailable
Source status: unavailable · 7/22/2026
Detailed instructions are withheld because the source is not available for verification.
Local market snapshot
Source: DoorBase, aggregated public ZIP-level data. Updated 7/17/2026.
How to Get Licensed
Complete education requirements
Complete 4-year HVAC apprenticeship program or equivalent work experience under licensed contractor. Document all training hours and experience.
Apply for examination
Submit application to Wisconsin DSPS with required fees, experience documentation, and proof of education. Application review takes 2-4 weeks.
Pass written examination
Take and pass written exam covering HVAC theory, codes, safety, and Wisconsin regulations. Exam administered at approved testing centers statewide.
Pass practical examination
Complete hands-on practical exam demonstrating installation, repair, and troubleshooting skills. Must demonstrate competency in both heating and cooling systems.
Obtain surety bond
Secure $25,000 surety bond from approved bonding company. Bond must remain active for license validity.
Submit final application
Submit completed Master HVAC License application with exam results, bond documentation, and final fees to DSPS for license issuance.
About This Market
Green Bay's HVAC market runs steady with strong demand from both residential and light commercial sectors. The Fox Valley's manufacturing base keeps commercial work flowing, while the housing stock - mix of older homes needing updates and newer construction - drives residential replacement and new installation jobs. Winter temperature swings and humid summers mean both heating and cooling systems get worked hard. Competition's healthy but not cutthroat, with roughly 25-30 established contractors serving the metro area. Costs track slightly below state averages due to lower overhead compared to Milwaukee or Madison markets.
To work this market, get your Master HVAC license through DSPS first - no shortcuts. Green Bay's building department runs efficient but expects permits pulled before you touch anything. Peak season splits between summer cooling emergencies and fall heating prep, so plan your crew accordingly. Residential customers here value straight talk and fair pricing over flashy marketing. Commercial accounts tend to stick with contractors who show up on time and handle paperwork properly. Winter emergency calls pay premium rates but you better be equipped for below-zero service work.
- Median hourly wageBureau of Labor Statistics
- Licensed establishments countU.S. Census Bureau
- Licensing requirementsWisconsin Department of Safety and Professional Services
- Permit requirementsGreen Bay Building Inspection Department
- Insurance minimumsWisconsin state statutes
Frequently Asked Questions
How much do HVAC contractors make in Green Bay, WI?
According to Bureau of Labor Statistics data, HVAC technicians in Wisconsin earn a median wage of $32.41 per hour or $67,413 annually. Green Bay rates typically align with state medians.
What license do I need for HVAC work in Wisconsin?
Wisconsin Department of Safety and Professional Services requires a Master HVAC License for contractors. This requires 4-year apprenticeship, written and practical exams, and $25,000 surety bond per state licensing board requirements.
Do I need permits for HVAC work in Green Bay?
Yes, Green Bay requires mechanical permits for installations, replacements, and major repairs through the Building Inspection Department. Permits cost $50-200 depending on scope and must be obtained before starting work.
How many HVAC contractors operate in Wisconsin?
U.S. Census data shows approximately 1,922 licensed HVAC establishments operating in Wisconsin, creating competitive but sustainable market conditions throughout the state including Green Bay.
When is peak season for HVAC work in Green Bay?
Peak demand splits between May-September for cooling system installations and repairs, and October-February for heating system work. Emergency heating calls during Wisconsin winters command premium rates.
HVAC contractors in Green Bay
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