HVAC Contractor Permit Requirements in Overland Park, KS

Complete permit and license guide for starting a hvac contractor in Overland Park, Johnson County, Kansas.

Updated 2026-03-15 6 stops $400–$1,500 est. 4–10 weeks
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Not legal advice. Requirements may change — always verify with your local government authority before applying. This guide was compiled from public and official sources (last updated ) and has not yet been independently source-verified — confirm each requirement before acting on it.

Federal — start here

1 stop

  1. EIN (Employer Identification Number)

    Required if you have employees or operate as an LLC or corporation. Free from the IRS.

    Official government source

    FreeImmediate (online application)

State of Kansas

2 stops

  1. Kansas Department of Revenue — Retailer's Sales Tax License

    Required for all businesses selling tangible personal property or taxable services in Kansas. Kansas charges a 6.5% state sales tax; local jurisdictions may impose additional taxes. Register with the Kansas Department of Revenue.

    Official government source

    FreeImmediate (online)

  2. EPA Section 608 Certification (for refrigerants)

    Technicians who purchase, recover, or handle refrigerants must hold EPA Section 608 certification. Required by federal law regardless of state.

    Official government source

    $20–$100 (exam)1–2 days

City of Overland Park / Johnson County

3 stops

  1. Kansas Department of Labor — HVAC Contractor License

    HVAC contractors in Kansas must hold an applicable mechanical contractor license. EPA Section 608 certification is required for refrigerant handling.

    Official government source

    $100–$200 (initial)4–8 weeks

  2. City of Overland Park Planning and Development Services — Business License

    Overland Park requires a Certificate of Occupancy for commercial businesses and specific permits for regulated business types from the Planning Department. This license must be renewed annually and displayed at your place of business.

    $50–$500/year depending on business type and gross revenues1–3 weeks

  3. Johnson County / Overland Park Mechanical Permit (per project)

    A mechanical permit must be obtained from the local building department for each HVAC installation or major repair. Inspections are required upon completion.

    Official government source

    $50–$300 per project1–5 business days

Terminus

Open for business — est. $400–$1,500 · 4–10 weeks

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Official Sources

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