HVAC Permit in Fort Worth, Texas
Permit required
Yes, a permit is required
Before changing, moving, or repairing a central heating and air conditioning system, duct work, or exhaust fans. Portable heating, ventilation, and cooling appliances are exempt, as is replacement of any minor part that does not alter the equipment's approval or make it unsafe, and self-contained refrigeration systems with 10 pounds or less of refrigerant or driven by motors of 1 horsepower or less.
Issued byCity of Fort Worth Development Services Department
By Mario Bailey, verified against official sources
Quick answer
Fort Worth requires a mechanical permit for HVAC equipment work, and the mechanical exemptions in its Building Administrative Code are limited to portable appliances, minor part replacement, portable evaporative coolers, small self-contained refrigeration systems, and portable fuel cell appliances. A full system change-out is not on that list. The city also warns that a building permit does not cover the trades: trade permits must be obtained separately and inspected separately.
Who is pulling this permit?
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When a permit is usually needed
Before changing, moving, or repairing a central heating and air conditioning system, duct work, or exhaust fans. Portable heating, ventilation, and cooling appliances are exempt, as is replacement of any minor part that does not alter the equipment's approval or make it unsafe, and self-contained refrigeration systems with 10 pounds or less of refrigerant or driven by motors of 1 horsepower or less.
What an HVAC permit costs in Fort Worth
How Fort Worth compares in Texas
No Texas jurisdiction we have verified sets a size threshold for this permit, so what actually differs between them is the fee.
| Jurisdiction | Permit needed? | Typical fee |
|---|---|---|
| Arlington | Permit required | ..."Per Trade - Commercial and Residential New Construction Permits... |
| Austin | Permit required | The Residential Change-Out Program charges $67.32 for the first HVAC system... |
| Corpus Christi | Permit required | FY 2026 Development Fee Schedule, Mechanical Permits: Residential $0.075 per... |
| Dallas | Permit required | ...schedule (Table B-I), value of work times 0.009652 times 1.33 with a $175... |
| El Paso | Permit required | (non-refundable)" is "$110 plus applicable technology fee," then per-item... |
| Fort Worththis page | Permit required | ...and vents, capacity to and including 100,000 BTU input or 20 KW... |
| Houston | Permit required | 2% of total job cost plus $47.00 base fee plus administrative fee of $33.56 |
How to apply in Fort Worth
In Fort Worth, 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 Fort Worth, 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 Fort Worth, 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 Fort Worth, 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 Fort Worth, 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. City of Fort Worth Development Services Department sets the exact checklist for Fort Worth.
Where to apply in Fort Worth:
City of Fort Worth Development Services Department
- New City Hall, 100 Fort Worth Trail, Fort Worth, TX 76102
- Phone: 817-392-2222
- Email: DevCustomerService@fortworthtexas.gov
HVAC Permit in Fort Worth compared with nearby Texas localities
| Locality | Permit needed? | Threshold | What each Texas schedule says | Verified |
|---|---|---|---|---|
| Fort Worth | Permit required | Any size | ...ducts and vents, capacity to and including 100,000 BTU input or 20 KW... | |
| Arlington | Permit required | Any size | ..."Per Trade - Commercial and Residential New Construction Permits $100.00" for... | |
| Austin | Permit required | Any size | The Residential Change-Out Program charges $67.32 for the first HVAC system and $18.81... | |
| Corpus Christi | Permit required | A mechanical permit is needed to install a new A/C unit, a new heat furnace, duct outlets or a system, to add or move a kitchen hood vent, or to add a restroom exhaust fan; the two published exceptions are installing a portable HVAC appliance and replacing minor parts as long as the equipment does not become unsafe. | FY 2026 Development Fee Schedule, Mechanical Permits: Residential $0.075 per square... | |
| Dallas | Permit required | Any size | ...Repairs schedule (Table B-I), value of work times 0.009652 times 1.33 with a $175... |
Inspections and closing out your permit
In Fort Worth, 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 Fort Worth: 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 Fort Worth: 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 Fort Worth: 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 Fort Worth: 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 Fort Worth: 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 Fort Worth: 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 Fort Worth permit portal or by phone at 817-392-2222.
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 Fort Worth
- Confirm the requirement. Yes, a permit is required. Usually needed: Before changing, moving, or repairing a central heating and air conditioning system, duct work, or exhaust fans. Portable heating, ventilation, and cooling appliances are exempt, as is replacement of any minor part that does not alter the equipment's approval or make it unsafe, and self-contained refrigeration systems with 10 pounds or less of refrigerant or driven by motors of 1 horsepower or less.
- Budget the fee. Billed per unit on the Schedule of Mechanical Fees, Table 1-H: forced air heating furnace including ducts and vents, capacity to and including 100,000 BTU input or 20 KW, $5.81; each compressor, condensing unit, or chiller unit up to and including 2 tons $5.81, over 2 and including 3 tons $9.85, over 3 and including 5 tons $15.68; ventilation fan and duct system $8.08; mechanical ventilator $8.08. Add the $31.50 permit application fee and the $16.87 technology fee. Residential remodel work is separately subject to the Table 1-A-1 minimum of $112.50 for 1 trade. Per Ordinance No. 27191-09-2024, effective October 1, 2024. Official fee schedule.
- Apply. In Fort Worth, 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 Fort Worth permit portal.
- Keep the office details handy. City of Fort Worth Development Services Department. Phone: 817-392-2222. Address: New City Hall, 100 Fort Worth Trail, Fort Worth, TX 76102.
- Plan for inspections. In Fort Worth, 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 Fort Worth?
- Fort Worth requires a mechanical permit for HVAC equipment work, and the mechanical exemptions in its Building Administrative Code are limited to portable appliances, minor part replacement, portable evaporative coolers, small self-contained refrigeration systems, and portable fuel cell appliances. A full system change-out is not on that list. The city also warns that a building permit does not cover the trades: trade permits must be obtained separately and inspected separately. Always confirm with the City of Fort Worth Development Services Department before starting.
- How much does an HVAC permit cost in Fort Worth?
- Billed per unit on the Schedule of Mechanical Fees, Table 1-H: forced air heating furnace including ducts and vents, capacity to and including 100,000 BTU input or 20 KW, $5.81; each compressor, condensing unit, or chiller unit up to and including 2 tons $5.81, over 2 and including 3 tons $9.85, over 3 and including 5 tons $15.68; ventilation fan and duct system $8.08; mechanical ventilator $8.08. Add the $31.50 permit application fee and the $16.87 technology fee. Residential remodel work is separately subject to the Table 1-A-1 minimum of $112.50 for 1 trade. Per Ordinance No. 27191-09-2024, effective October 1, 2024. See the official fee schedule for current amounts.
- How long does an HVAC permit take in Fort Worth?
- In Fort Worth, an HVAC permit typically takes 7 business days for first review comments on a residential building permit. Times can vary by workload and project scope, so confirm with the office.
- Where do you apply for an HVAC permit in Fort Worth?
- You can apply through the Fort Worth permit portal or contact the City of Fort Worth Development Services Department directly. The links are listed on this page.
- Can a homeowner pull an HVAC permit themselves in Fort Worth?
- Under Texas law (Tex. Occupations Code 1305.003(a)(6), 1301.051; Tex. Local Government Code 233.157(c)): Texas licenses individual construction trades rather than general contractors, so no state statute requires a license to act as your own general contractor on your own house. For electrical work, the state licensing law does not apply to work performed in or on a dwelling by a person who owns and resides in it, but only where no municipal ordinance specifically regulates that work, so city electrical licensing and permit rules still control inside city limits (Occupations Code 1305.003(a)(6)). For plumbing, a property owner does not need a state license to perform plumbing in the owner's homestead (Occupations Code 1301.051). In opt-in counties' unincorporated areas, an individual who builds their own house or acts as their own contractor is exempt from the Class C misdemeanor penalty for inspection notice failures if they intend to use the home as their primary residence (Local Government Code 233.157(c)). None of these exemptions waive local permit or inspection requirements where they apply. Confirm how Fort Worth applies this before you apply.
From the Library
What else needs a permit in Fort Worth
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Deck Permit | It depends | height of the platform, walk or deck above grade, and whether it sits over a basement or story below | ...work billed under Table 1-A-1 by number of trades, minimum permit fee $112.50 for 1... |
| Electrical Permit | Permit required | Any size | ...of Electrical Fees, Table 1-J: services and subpanels 60 amps to 100 amps $18.81... |
| Fence Permit | It depends | height of a solid fence, with open wire fences without slats exempt up to 8 feet | ..."Permit Application Fee, Applicable to All Permit Types, Excluding Signs: $31.50"... |
| Patio Permit | It depends | height of the patio platform or walk above grade; a patio cover is a separate accessory structure regardless of the slab height | ...Group U accessory structure billed on new square footage under Table 1-C-4 ($96.84... |
| Plumbing Permit | Permit required | Any size | ...on the Schedule of Plumbing Fees, Table 1-I: first fixture or appliance $9.85... |
| Pool Permit | It depends | capacity of a prefabricated pool accessory to a single-family dwelling and installed entirely above ground | The Schedule of Electrical Fees, Table 1-J, carries a flat "Swimming pools: $53.79" line |
| Roof Replacement Permit | It depends | whether any decking, sheathing, lathing boards, rafters, or ridge boards are replaced | ...work billed under Table 1-A-1 by number of trades, minimum permit fee $112.50 for 1... |
| Shed Permit | Permit required | Any size | ...Group U accessory structure billed on new square footage under Table 1-C-4: $96.84... |
| Solar Permit | Permit required | Any size | The Schedule of Mechanical Fees, Table 1-H, carries a "Solar energy system: $59.18"... |
HVAC Permit in other Texas localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Fort Worth documents; the office above sets the local rules.
How this HVAC permit page for Fort Worth was verified. 1 official source: fortworthtexas.gov; fee schedule: official document. Last checked by Mario Bailey, not confirmed with City of Fort Worth Development Services Department. Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page