HVAC Contractors in Green Bay, Wisconsin

Licensed Establishments

1,922

U.S. Census Bureau

Peak Season

May through September for cooling installs, October through March for heating repairs and replacements

Estimate

Avg. Response Time

24-48 hours for quotes, same day for emergency calls

Estimate

Common Job Costs

ServiceCost Range
AC unit replacement$3,500 – $8,500
Furnace installation$2,800 – $6,200
Ductwork replacement$4,000 – $12,000
Heat pump installation$4,200 – $9,800
System tune-up/maintenance$150 – $350
Emergency repair calls$200 – $800

Licensing Requirements

Licensing Requirements

Wisconsin requires DSPS Credential for HVAC work. Must pass trade exam, show 4 years experience or complete approved apprenticeship program. Renewal every 2 years with continuing education. Master credential available with additional experience and exam.

Permit Requirements

City of Green Bay requires mechanical permits for HVAC installations, replacements, and major repairs. Permit fees range $50-200 based on project scope. Submit through Green Bay Building Inspection Department.

Inspection Schedule

Rough-in inspection before covering work, final inspection upon completion. Schedule 24 hours in advance with Green Bay Building Inspection. Additional inspections may be required for complex installations.

Insurance Minimums

General liability minimum $300,000, workers compensation as required by Wisconsin law for employees. Many customers require $1M liability coverage.

How to Get Licensed

  1. 1

    Meet experience requirements

    Complete 4 years of documented HVAC experience or finish a state-approved apprenticeship program. Document all work experience with employer verification.

  2. 2

    Apply for examination

    Submit application to Wisconsin DSPS with required fees and documentation. Include proof of experience, education transcripts if applicable, and background check.

  3. 3

    Pass trade examination

    Take and pass the Wisconsin HVAC trade examination. Covers codes, safety, refrigeration, heating systems, and electrical fundamentals.

  4. 4

    Receive initial credential

    Upon passing exam and completing application review, receive Wisconsin DSPS HVAC Credential. Valid for 2 years from issue date.

  5. 5

    Maintain through renewal

    Renew every 2 years with continuing education requirements. Submit renewal application and fees before expiration to maintain active status.

About This Market

Green Bay's HVAC market runs hot and cold with the brutal Wisconsin weather. You've got steady residential replacement work from aging systems, plus commercial jobs from the paper mills and industrial base. Competition's stiff with roughly 25-30 established contractors serving Brown County. Costs get driven up by Wisconsin's tough energy codes and the need for high-efficiency equipment to handle temperature swings from -20°F to 90°F. Here's what you need to know to work Green Bay: Get your Wisconsin DSPS credential first - no shortcuts. The city's permit process is straightforward but they inspect everything. Your busy season splits between spring AC prep and fall heating emergencies. Stock cold-weather equipment and be ready for emergency calls during polar vortex events. Local customers value reliability over rock-bottom pricing - they remember who showed up during the last blizzard.

Data Sources:

Number of establishments: U.S. Census Bureau, County Business PatternsLicensing requirements: Wisconsin Department of Safety and Professional ServicesPermit requirements: Green Bay Building Inspection DepartmentCost estimates: Regional contractor survey estimatesInsurance minimums: Wisconsin statute and industry standards

Frequently Asked Questions

What license do I need for HVAC work in Wisconsin?
Wisconsin requires a DSPS Credential in the HVAC trade. You need 4 years experience or approved apprenticeship completion, plus passing the state trade exam. Source: Wisconsin Department of Safety and Professional Services.
How much does an HVAC permit cost in Green Bay?
Green Bay mechanical permits range $50-200 depending on project scope. Simple replacements start at $50, whole-house systems can reach $200. Source: Green Bay Building Inspection Department fee schedule.
What's the typical cost to replace an AC unit in Green Bay?
AC replacement runs $3,500-8,500 depending on size and efficiency. High-efficiency units cost more but Wisconsin's energy codes often require them. Estimate based on regional contractor surveys.
How many HVAC contractors operate in Wisconsin?
Approximately 1,922 licensed HVAC establishments operate statewide, with Brown County hosting 25-30 active contractors. Source: U.S. Census Bureau, County Business Patterns.
When is peak season for HVAC work in Green Bay?
Split season: May-September for AC installations and service, October-March for heating repairs and replacements. Emergency calls spike during extreme weather events.

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