If you're installing or replacing a system, plan on a permit. Inside Columbia, the ordinance also requires that "all mechanical work must be performed by a mechanic licensed by the City of Columbia," and a final mechanical permit is required to claim the Columbia Water & Light rebate. In unincorporated Boone County a permit is required for HVAC installation or upgrade — but the county, by state statute, cannot license contractors at all. Whether a specific job needs a permit is a question for the jurisdiction, and we'll point you to the phone number rather than guess.
What does the City of Columbia require?
Columbia adopted the 2018 International Mechanical Code as Code Chapter 6, Article V. The ordinance language on who may do the work is direct: "All mechanical work must be performed by a mechanic licensed by the City of Columbia, or as allowed by ordinance."
To pull a permit, an applicant needs a City Contractor License together with a Master Trade License. The city's mechanical license classes are Master Mechanic (Type A), which carries contracting authority, Journeyman (Type B) and Chimney Sweep (Type D). The city notes on its own page that the Board of Mechanical Examiners is no longer active; applications are handled by Building & Site Development.
Permits are filed online through the EnerGov Citizen Self Service portal.
| Jurisdiction | Permit | Contractor licensing | Who to call |
|---|---|---|---|
| City of Columbia | Filed through the EnerGov Citizen Self Service portal | Requires a mechanic licensed by the City; Master Trade License to apply | Building & Site Development, 573-874-7474 |
| Unincorporated Boone County | Required for HVAC installation or upgrade | Cannot license contractors — state statute | Resource Management, 573-886-4330 |
| State of Missouri | — | No statewide HVAC or mechanical license | — |
What about unincorporated Boone County?
A permit is required: the county's own FAQ lists "HVAC installation or upgrade" among the work that requires a building permit. Codes adopted are the 2015 I-codes, effective 4/1/2017. Contact Resource Management at (573) 886-4330, or Inspections at (573) 886-4339.
Then comes the part almost nobody writes about. The county states plainly: "According to State Statute, Boone County is not allowed to license General Contractors." So in the county you have a jurisdiction that requires a permit for the work while having no authority to license the person doing it — the mirror image of the city, which requires both. If you live outside the city, that puts the burden of vetting a contractor on you.
We Handle the Permit and the Paperwork
Permit pulled and finaled, AHRI documentation gathered, rebate application filed inside the six-month window — on every installation we do.
Does Missouri license HVAC contractors at all?
No. Missouri has no statewide HVAC or mechanical license. Regulation is entirely municipal, which is why the rules change when you cross a city line and why a contractor's credentials in one town tell you nothing about another.
There is one federal requirement that applies everywhere: EPA Section 608 certification to handle refrigerants. It comes in four classes — Type I for small appliances, Type II for high-pressure equipment including residential split systems and heat pumps, Type III for low-pressure systems, and Universal for all types, which requires a proctored core exam. These certifications do not expire.
Why the permit matters even if you'd rather skip it
The most concrete reason is money. The final mechanical permit is one of the required documents in the Columbia Water & Light rebate packet, alongside the application, the paid receipt listing model numbers and the AHRI confirmation — all due within six months of installation. No final permit, no rebate, whatever the equipment cost. The city's guidance notes these permits are "usually obtained by the contractor," which is why the question "who's pulling the permit?" belongs in every quote conversation. Our rebate walkthrough lays out the full packet.
The second reason is the record. A permitted, inspected installation is documented when you sell the house or file an insurance claim. An undocumented one is a conversation you get to have at the worst possible moment.
What we won't publish — and where to get it
Deliberately, you won't find a fee schedule here, a list of exactly which jobs trigger a permit, a claimed repair exemption, or a description of required inspections. Those details change, they vary by jurisdiction, and getting them wrong costs you real money. Call the source:
- City of Columbia — Building & Site Development: 573-874-7474 · Building@CoMo.gov · 701 E. Broadway, 3rd Floor
- Boone County Resource Management: (573) 886-4330 · Inspections (573) 886-4339
- Columbia Water & Light rebates: Efficiency@CoMo.gov · 573-441-5528
More detail on how this fits together lives on our Columbia HVAC permits and licensing page.
What to ask before you hire anyone
- Who is pulling the mechanical permit, and under which license?
- Will the final permit be issued — not just the application filed?
- Will I receive the AHRI confirmation for the exact matched system installed?
- Who submits the rebate application, and when?
Those four questions separate a complete furnace installation, A/C installation or heat pump installation from a box swapped in a driveway. They matter just as much on commercial work and for property managers handling multiple units. We work across Columbia and Boone County — from Vanderveen Crossing to Ashland and Hallsville — and confirm the requirements for the jurisdiction each job sits in.
Frequently asked questions
Which mechanical code does Columbia use?
The City of Columbia adopted the 2018 International Mechanical Code as Code Chapter 6, Article V. Unincorporated Boone County adopted the 2015 family of I-codes, effective April 1, 2017.
Does Columbia require a licensed mechanic for HVAC work?
Yes. The city ordinance states that all mechanical work must be performed by a mechanic licensed by the City of Columbia, or as allowed by ordinance. Permit applicants need a City Contractor License together with a Master Trade License. The city's license classes include Master Mechanic Type A, Journeyman Type B and Chimney Sweep Type D.
How are HVAC permits filed in Columbia?
Permits are filed online through the city's EnerGov Citizen Self Service portal. Building and Site Development handles applications and can be reached at 573-874-7474 or Building@CoMo.gov, at 701 E. Broadway, 3rd Floor. The city notes that the Board of Mechanical Examiners is no longer active.
Do I need a permit for HVAC work outside Columbia city limits?
In unincorporated Boone County, yes. The county's FAQ lists HVAC installation or upgrade among the work that requires a building permit. Boone County Resource Management can be reached at 573-886-4330 and Inspections at 573-886-4339.
Does Boone County license HVAC contractors?
No. The county states that according to state statute, Boone County is not allowed to license General Contractors. That produces a genuine contrast: the city requires a licensed mechanic for mechanical work, while the county requires a permit but has no authority to license the contractor doing the job.
Does Missouri have a statewide HVAC license?
No. Missouri has no statewide HVAC or mechanical license, so regulation is entirely municipal and varies from one jurisdiction to the next. Separately, federal EPA Section 608 certification is required to handle refrigerants, in Type I, Type II, Type III and Universal classes, and those certifications do not expire.
Do I need a permit to claim the Columbia rebate?
Yes. The final mechanical permit is one of the documents required in the Columbia Water and Light rebate packet, along with the application, the paid receipt listing model numbers and the AHRI confirmation. The city's guidance notes these permits are usually obtained by the contractor.