HVAC Replacement permit in Corpus Christi, TX
Yes — you need a permit for hvac replacement work in Corpus Christi.
Replacing an air conditioner, furnace, or heat pump needs a mechanical permit. Only portable units and minor parts are exempt; a full equipment change-out is not.
| Permit needed? | Yes |
|---|---|
| Where the line falls | Replacing an air conditioner, furnace, or heat pump needs… |
| Fee | Residential mechanical trade permit is $0.075 per square foot, minimum $146.41, plus 4.5% DSD administration surcharge. |
| Review time | Not in the ordinance |
| Code section | IRC R105.2 / R105.2.2 |
| Based on | IRC 2021 (adopted by reference) |
How to pull the permit
- Put together a site plan showing where the work goes, with dimensions.
- Apply through the Corpus Christi building department.
- Pay the permit fee when the permit is issued. Work done before that isn't covered.
- Book each inspection listed on the permit as the job reaches that stage.
If you skip it
Starting work without a permit costs 2 times the permit fee plus a $658.85 investigative fee.
Nearby cities, same job
Rules stop at the city line. If your lot is near a boundary, or you work across several towns, this is where they differ.
| City | Distance | Permit? | Where the line falls |
|---|---|---|---|
| Corpus Christi | — | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| Brownsville | 123 mi | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| Laredo | 142 mi | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| San Antonio | 144 mi | Yes | Replacing an air conditioner, furnace, or heat pump requi… |
| New Braunfels | 146 mi | Yes | Replacing a whole air conditioner, furnace, or heat pump … |
| Sugar Land | 158 mi | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
Other work in Corpus Christi
Questions people ask
How much does a hvac replacement permit cost in Corpus Christi?
Residential mechanical trade permit is $0.075 per square foot, minimum $146.41, plus 4.5% DSD administration surcharge.. Valuation-based fees mean the number depends on what the job is worth, so the department quotes it when you apply.
I already built it without a permit. What now?
Corpus Christi can issue a stop-work order and require you to apply after the fact, sometimes with an extra fee. Work that was covered up may have to be opened for inspection. Full walkthrough here.
Does unpermitted work cause problems when selling the house?
Often, yes. A buyer's inspector or the title company may flag it, and lenders can balk at financing a home with open or missing permits. What to do about it.