Looking for a Manual J calculation in Green Bay, WI? Describe your project once and up to three HVAC designers who work in Green Bay and Brown County get back to you with a quote. It's free and there is no obligation.
Green Bay is home to about 106,311 people (2024 Census Bureau estimate), a stable community (−1.0% since 2020). With 2,338 people per sq mi, it is a suburban area. HVAC permits here increasingly require load calculations, especially for new homes and heat pumps.
Green Bay at a glance
- Population (Census Bureau estimate, 2024)
- 106,311 (−1.0% since 2020)
- Rank in Wisconsin
- 3rd of 607 cities and towns
- Land area
- 45 sq mi
- Population density
- 2,338 people per sq mi (suburban)
- Type
- City (Green Bay city)
- Main county
- Brown County
What to check before hiring in Green Bay
- Requirements: in Wisconsin, ask the building department what report format it expects.
- Inputs: accurate plans and window data make the calculation reliable.
- Volume: builders can often get pricing for several homes.
- Price drivers: home size, number of zones and whether S and D are included.
Useful official resources
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ACCA: Air Conditioning Contractors of America
Official information and guidance.
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ICC: International Code Council
Official information and guidance.
Services available in Green Bay
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Manual J load calculation
Room-by-room heating and cooling load calculation for the HVAC permit.
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Manual S and D equipment and duct design
Equipment selection and duct design from the load calculation.
Frequently asked questions in Green Bay
How much does a Manual J cost in Green Bay, WI?
It depends on the home and the reports needed. Describe your project: designers who serve Green Bay reply with a quote.
How long does it take?
Often a few days once plans are received.
Can it be done remotely?
Usually yes, from plans and specifications.
Which HVAC designers will contact me?
Up to three independent HVAC designers who serve Green Bay and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.