HVAC Permit in Collier County, Florida
Permit required
Yes, a permit is required
Before installing, replacing, or altering an air conditioning or mechanical system in unincorporated Collier County
Issued byGrowth Management Community Development Department (GMCD), Building Plan Review and Inspection Division (Building Division)
By Mario Bailey, verified against official sources
Quick answer
Collier County requires a permit for HVAC and mechanical work, including new systems, exhaust hoods, cooling towers, and air conditioning change-outs. A residential A/C change-out is a self-issuing permit available directly on the county portal unless the unit is over 5 tons, goes on a roof, adds a slab, changes equipment size or location, alters ductwork, adds a mini-split, or involves an owner-builder, trailer, or commercial/multi-family building, in which case standard plan review applies. This applies to unincorporated Collier County; incorporated cities operate their own building departments.
Typical threshold: This is a self-issuing permit available on the portal, unless any of the criteria listed below apply. If they do, the permit will follow the standard permitting and plan review process: Greater than 5 tons (single family); Located on the roof of a building; Adding concrete slab; Changing size of equipment; Moving location of equipment; Any changes to duct work; Adding a new mini-split; If owner-builder; In a trailer or manufactured home; If commercial building; If multi-family building.
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When a permit is usually needed
Before installing, replacing, or altering an air conditioning or mechanical system in unincorporated Collier County
What an HVAC permit costs in Collier County
How Collier County compares in Florida
| Jurisdiction | Permit needed? | Threshold |
|---|---|---|
| Alachua County | Permit required | Any size |
| Brevard County | Permit required | Any size |
| Broward County | Permit required | Any size |
| Charlotte County | Permit required | Any size |
| Clay County | Permit required | Any size |
| Collier Countythis page | Permit required | This is a self-issuing permit available on the portal, unless any of the criteria listed below apply. If they do, the permit will follow the standard permitting and plan review process: Greater than 5 tons (single family); Located on the roof of a building; Adding concrete slab; Changing size of equipment; Moving location of equipment; Any changes to duct work; Adding a new mini-split; If owner-builder; In a trailer or manufactured home; If commercial building; If multi-family building. |
| Hernando County | It depends | A window air conditioning unit using an existing electrical outlet, and repair of existing mechanical equipment, do not require a building permit; installing a new central/ducted system or changing out equipment does |
How to apply in Collier County
In Collier County, a residential HVAC (mechanical) permit application must identify the covered equipment and scope of work, since installing, altering, or replacing a heating or cooling system is regulated work that cannot start until the application is submitted and the permit issued. The equipment itself must be picked by a real sizing calculation rather than a rule of thumb.
What most HVAC permit applications include:
- For Collier County, a mechanical permit is required before anyone may install, alter, repair, remove, convert, or replace a heating, ventilating, or air conditioning system regulated by the code, and the work may not begin until the application is submitted and the permit is issued (IRC R105.1).
- For Collier County, the application identifies the specific equipment being installed, such as a furnace, heat pump, or air conditioner, since the unit must be installed according to its listing and the manufacturer's installation instructions (IRC M1401.1).
- For Collier County, the proposed equipment location must leave the clearances needed to clean coils and replace filters, blowers, motors, and controls after installation (IRC M1401.2).
- For Collier County, the application carries the equipment sizing basis: ACCA Manual J building loads and Manual S equipment selection, or another approved sizing method, not a rule of thumb (IRC M1401.3).
- For a split system, the work covered by the permit includes refrigerant suction line insulation, since the piping is inspected against that standard once installed (IRC M1411.6).
General submittal guidance from International Residential Code (IRC), 2021 edition, Chapter 1 (Permits) and Chapter 14 (Heating and Cooling Equipment and Appliances). Source. Growth Management Community Development Department (GMCD), Building Plan Review and Inspection Division (Building Division) sets the exact checklist for Collier County.
Where to apply in Collier County:
Growth Management Community Development Department (GMCD), Building Plan Review and Inspection Division (Building Division)
- North Horseshoe Campus, 2800 Horseshoe Drive North, Naples, FL 34104
- Phone: 239-252-2400
- Email: Permitting.Dept@collier.gov
HVAC Permit in Collier County compared with nearby Florida localities
| Locality | Permit needed? | Threshold | What each Florida schedule says | Verified |
|---|---|---|---|---|
| Collier County | Permit required | This is a self-issuing permit available on the portal, unless any of the criteria listed below apply. If they do, the permit will follow the standard permitting and plan review process: Greater than 5 tons (single family); Located on the roof of a building; Adding concrete slab; Changing size of equipment; Moving location of equipment; Any changes to duct work; Adding a new mini-split; If owner-builder; In a trailer or manufactured home; If commercial building; If multi-family building. | ...Permit Review Fees: "Residential Air Conditioning Change out permits, $100.00 for... | |
| Alachua County | Permit required | Any size | Flat fee: Res Mechanical Alt/Repair $110.00, per the Building Fee Schedule effective... | |
| Brevard County | Permit required | Any size | ...Permit Application fee table lists a Building Code Review fee of $75.00 for the... | |
| Broward County | Permit required | Any size | Mechanical (air conditioning and ventilation) permit is the greater of a $125 minimum... | |
| Charlotte County | Permit required | Any size | At application: $90 flat building fee unless valuation is $50,000 or more (then 0.004 x... |
Inspections and closing out your permit
In Collier County, mechanical work gets a rough in inspection after the ductwork, refrigerant lines, and gas piping are in but before they are covered or concealed, followed by a final inspection that confirms the equipment operates correctly and its clearances, combustion air, and condensate disposal are in place. A straight equipment changeout with no new ductwork commonly gets a single final inspection instead of a separate rough in trip.
- In Collier County: rough inspection of the mechanical and gas systems must be made before the work is covered or concealed, before fixtures or appliances are set or installed, and before the framing inspection (IRC R109.1.2).
- In Collier County: where a cooling coil is added to an existing warm air furnace, the rough in confirms the coil is not installed upstream of the heat exchanger unless the furnace is listed for it, and that the blower can handle the added static pressure (IRC M1411.2).
- In Collier County: the rough in and final both confirm the appliance access opening and working space are large enough to service the unit (IRC M1305.1).
- In Collier County: at final inspection, the inspector verifies the equipment has adequate combustion air, with openings kept clear for the distance the code requires (IRC M1402.3).
- In Collier County: final inspection also checks that the condensate line drains to an approved point of disposal with the required slope and does not create a nuisance (IRC M1411.3).
- In Collier County: for a straight equipment changeout with no new ductwork, many permit offices require only a single final inspection, while a new installation still gets a rough in inspection before the final (common local inspection practice).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Collier County permit portal or by phone at 239-252-2400.
Inspection sequence from International Residential Code (IRC), 2021 edition, Section R109 (Required Inspections) and Chapter 14 (Heating and Cooling Equipment and Appliances). Source. An open permit left un-inspected can surface later in a title search or home sale.
Your HVAC Permit checklist for Collier County
- Confirm the requirement. Yes, a permit is required. Typical threshold: This is a self-issuing permit available on the portal, unless any of the criteria listed below apply. If they do, the permit will follow the standard permitting and plan review process: Greater than 5 tons (single family); Located on the roof of a building; Adding concrete slab; Changing size of equipment; Moving location of equipment; Any changes to duct work; Adding a new mini-split; If owner-builder; In a trailer or manufactured home; If commercial building; If multi-family building. Usually needed: Before installing, replacing, or altering an air conditioning or mechanical system in unincorporated Collier County.
- Budget the fee. Fee Schedule (Resolution 2025-231, effective January 1, 2026), Mechanical Permit Review Fees: "Residential Air Conditioning Change out permits, $100.00 for initial inspection.". Official fee schedule.
- Apply. In Collier County, a residential HVAC (mechanical) permit application must identify the covered equipment and scope of work, since installing, altering, or replacing a heating or cooling system is regulated work that cannot start until the application is submitted and the permit issued. The equipment itself must be picked by a real sizing calculation rather than a rule of thumb. Start at the Collier County permit portal.
- Keep the office details handy. Growth Management Community Development Department (GMCD), Building Plan Review and Inspection Division (Building Division). Phone: 239-252-2400. Address: North Horseshoe Campus, 2800 Horseshoe Drive North, Naples, FL 34104.
- Plan for inspections. In Collier County, mechanical work gets a rough in inspection after the ductwork, refrigerant lines, and gas piping are in but before they are covered or concealed, followed by a final inspection that confirms the equipment operates correctly and its clearances, combustion air, and condensate disposal are in place. A straight equipment changeout with no new ductwork commonly gets a single final inspection instead of a separate rough in trip.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need an HVAC permit in Collier County?
- Collier County requires a permit for HVAC and mechanical work, including new systems, exhaust hoods, cooling towers, and air conditioning change-outs. A residential A/C change-out is a self-issuing permit available directly on the county portal unless the unit is over 5 tons, goes on a roof, adds a slab, changes equipment size or location, alters ductwork, adds a mini-split, or involves an owner-builder, trailer, or commercial/multi-family building, in which case standard plan review applies. This applies to unincorporated Collier County; incorporated cities operate their own building departments. Always confirm with the Growth Management Community Development Department (GMCD), Building Plan Review and Inspection Division (Building Division) before starting.
- How much does an HVAC permit cost in Collier County?
- Fee Schedule (Resolution 2025-231, effective January 1, 2026), Mechanical Permit Review Fees: "Residential Air Conditioning Change out permits, $100.00 for initial inspection.". See the official fee schedule for current amounts.
- Where do you apply for an HVAC permit in Collier County?
- You can apply through the Collier County permit portal or contact the Growth Management Community Development Department (GMCD), Building Plan Review and Inspection Division (Building Division) directly. The links are listed on this page.
- Can a homeowner pull an HVAC permit themselves in Collier County?
- Under Florida law (F.S. 489.103(7)(a)-(c)): Florida lets you pull your own permit as an owner-builder under section 489.103(7), Florida Statutes, which exempts property owners from the contractor licensing law when they act as their own contractor and provide direct, onsite supervision of all work not performed by licensed contractors. The exemption covers building or improving a one-family or two-family residence or a farm outbuilding for your own occupancy or use, and commercial buildings only up to a $75,000 cost, and the property may not be built or improved for sale or lease. If you sell or lease the property within 1 year after completing the work, the law presumes it was built for sale or lease, which violates the exemption. To qualify, you must personally appear and sign the building permit application and sign a state-prescribed disclosure statement acknowledging that you are the party legally and financially responsible for the construction, that you must provide direct, onsite supervision, and that unlicensed people you use must be your own employees, bringing federal tax withholding and workers' compensation obligations. You may not hire an unlicensed person to act as your contractor and may not delegate supervision to anyone who is not licensed for the work being done; if these requirements are violated, the local permitting agency shall withhold final approval, revoke the permit, or pursue unlicensed-activity remedies. A separate narrow branch of the exemption also lets an owner take over and complete a permit on a one-family or two-family residence when the original contractor substantially completed the project. Confirm how Collier County applies this before you apply.
From the Library
What else needs a permit in Collier County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Deck Permit | Permit required | Any size | Not published |
| Electrical Permit | Permit required | Permits shall not be required for the following: ... Electrical: 1. Repair work performed by licensed electrical contractors that does not exceed $1,500.00 in value of materials and labor. 2. Repair or replace existing light fixtures and ceiling fans. 3. Repair or replace electrical wall switches and wall outlet devices of 20 amps or less and 120 volts. 4. Repair/replace low voltage (under 77 volts) devices. | ...January 1, 2026), Electrical Permit Review Fees: valuation up to $4,999.99... |
| Fence Permit | Permit required | Any size | ...28, 2025, effective January 1, 2026), Section V (Fences/Walls): "Fences: $35.00... |
| Patio Permit | It depends | Permits shall not be required for the enclosure of an existing covered patio, balcony, or porch with screening only; a permit is required to build a new patio cover, screen enclosure, or other patio structure. | Not published |
| Plumbing Permit | Permit required | Permits shall not be required for the following: ... Plumbing: 1. Repair work performed by licensed plumbing contractors that does not exceed $1,500.00 in value of materials and labor. [Followed by 16 specific exempted repairs/replacements, e.g. faucets, water closets, sinks, garbage disposals, dishwashers, and like-for-like electric water heaters up to 52-gallon capacity.] | ...January 1, 2026), Plumbing and Gas Permit Review Fees: valuation up to $4,999.99... |
| Pool Permit | Permit required | Any size | ...1, 2026), Section U (Pool or Spa Permit Fees): private pool or spa, "$100.00... |
| Roof Replacement Permit | Permit required | Collier County's locally adopted building code amendment exempts from permit only the repair of any roof covering not exceeding $1,500.00 in value of materials and labor, or repair work not exceeding two roofing squares (200 square feet) in extent; this exemption is for roof repair, not for roof replacement/reroofing (removing and replacing the covering), which requires a standard Reroof permit. | ...Permit Review Fees (Resolution 2025-231, Section N): valuation up to $4,999.99 is... |
| Shed Permit | Permit required | Any size | Not published |
| Solar Permit | Permit required | Any size | ...2026), Solar Permit Review Fees: "1) Pool and domestic water heater permits, $50.00... |
HVAC Permit in other Florida localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Collier County documents; the office above sets the local rules.
How this HVAC permit page for Collier County was verified. 2 official sources: collier.gov, collier.gov; fee schedule: official document. Last checked by Mario Bailey, not confirmed with Growth Management Community Development Department (GMCD), Building Plan Review and Inspection Division (Building Division). Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page