HVAC replacement cost in Houston, TX

Average $7,500; common $5,000 to $12,500; up to $22,000 with new ductwork.

A typical HVAC replacement in Houston, TX is about $7,446, including a permit fee of $230.56.

What we assumed

We price HVAC replacement in Houston, TX at 3-ton (36,000 BTU) like-for-like split system.

For the permit line we assumed the official valuations of $5,000 low, $7,500 typical, and $16,000 high, so the low fee is $180.56, the typical fee is $230.56, and the high fee is $400.56. Full arithmetic is in the calculation note on this page. The official typical project value is $7,500.

Questions about this estimate

How much does HVAC replacement cost in Houston, TX?

Typical all-in is about $7,446. The official local permit fee of $230.56 is included in the all-in.

Is a permit required for HVAC replacement in Houston, TX?

Yes. Houston Permitting Center (Building Code Enforcement) requires a permit for a typical HVAC replacement in Houston, TX. The typical listed fee is $230.56. Totals use the published 2%-of-valuation alteration line plus the $33.56 administrative fee.

What is included in this HVAC replacement estimate for Houston, TX?

The estimate is labor adjusted for local wages in Houston, TX, plus materials at the national figure, at the typical size in the table above. The official typical permit fee of $230.56 is included in the all-in typical.

Why might the Houston permit fee differ from this typical figure?

The official Houston, TX fee comes from City of Houston 2026 BCE Permit Fee Schedule p. 3 HVAC; CE-1017 (Jan 2026) (valuation). The typical path is $230.56 on the official $7,500 valuation. Low, typical, and high valuation arithmetic are in the calculation note on this page. The alternate complete-system line of $124.62 is listed and not used for the published totals. Verify the fee with Houston Permitting Center (Building Code Enforcement).

How is the typical permit fee calculated for HVAC replacement in Houston, TX?

Listed low, typical, and high use the published 2%-of-valuation alteration line plus the administrative fee. Full arithmetic is in the calculation note on this page.

What project value is this HVAC replacement permit fee based on in Houston, TX?

The official typical project value is $7,500. The fee bands use the official assumed valuations of $5,000, $7,500, and $16,000. The low, typical, and high arithmetic is in the calculation note on this page.

How much does a 3-ton HVAC replacement cost in Houston?

The documented typical job is a 3-ton (36,000 BTU) like-for-like split system. This cost model prices that job as one system. It does not price tons as a separate rate. The cost-by-size rows are 1 system, 2 systems, and 3 systems. The calculator scales the installed job by the system count divided by 1, and 1 is inside the allowed range of 1 to 4, so these figures are that same scale. At 1 system in Houston, TX the all-in is $4,991 low, $7,446 typical, and $21,565 high. Those all-in figures add the model's rounded permit for the valuation bands on this row. The official fees are $180.56, $230.56, and $400.56. The model rounds each to the nearest dollar before adding it, so the all-in uses $181 on the low, $231 on the typical, and $401 on the high. The permit is based on project value, so it is not rescaled when the system count changes, and it is not a new 2%-of-valuation fee for 1 system. The other table rows are 2 systems at $14,661 typical and 3 systems at $21,876 typical. Listed assumed valuations behind those permit lines are $5,000, $7,500, and $16,000.

How much does HVAC replacement cost per system in Houston?

Cost per system on this page is the all-in typical divided by the system count on that row. One system is a complete heating-and-cooling change-out, not a single trade item and not a ton of capacity. The cost-by-size rows are 1 system, 2 systems, and 3 systems. The official typical permit fee is $230.56. The cost-by-size table shows that fee on each of those rows, because this permit is based on project value and is not rescaled when the system count changes. At 1 system in Houston, TX the all-in typical is $7,446, which is $7,446 per system after rounding to the nearest dollar. At 2 systems the all-in typical is $14,661, or $7,331 per system. At 3 systems the all-in typical is $21,876, or $7,292 per system. Those per-system figures are that division of the row. They are not a separate published rate.

Is $15,000 too much for HVAC replacement in Houston?

At the model's typical one-system job (a 3-ton (36,000 BTU) like-for-like split system) in Houston, TX, the all-in is $4,991 low, $7,446 typical, and $21,565 high. $15,000 is above that typical of $7,446. Published national HVAC replacement prices run about $5,000 to $12,500 for a common job, with an average of $7,500 and up to $22,000 with new ductwork. $15,000 is inside that published high band and above the average. Wage-indexed, that high is $21,565 at one system in Houston, TX. $15,000 is below that adjusted for local wages high and above the typical. On the typical path the same scale first reaches $15,000 at 3 systems ($21,876 typical), which is above the one-system job this page uses as typical. The official permit on this row is $230.56 at a $7,500 valuation, $180.56 at $5,000, and $400.56 at $16,000. $15,000 is below that listed high valuation of $16,000, but this row does not list a separate permit fee for a $15,000 project value. The all-in figures add the model's rounded typical permit of $231. They do not look up a new 2%-of-valuation fee at $15,000.

Do I need a permit to replace an air conditioner or furnace in Houston?

On the official path, yes. Houston Permitting Center (Building Code Enforcement) is listed as requiring a permit for a typical HVAC replacement in Houston, TX, and the official typical fee is $230.56. The published repairs/alterations line is 2% of valuation + $47, then the administrative fee of $33.56. At the official $7,500 valuation that alteration line is $197, so $197 + $33.56 = $230.56. Low $5,000 is 0.02×5000+$47=$147, then $147 + $33.56 = $180.56. High $16,000 is 0.02×16000+$47=$367, then $367 + $33.56 = $400.56. The $91.06 minimum before admin is not binding on those three valuations. The alternate complete-system per-ton path stays in extras at $124.62 and is not used for the published totals. Portable appliances and minor part replacement are exempt, and this row does not add a $0 line for them. The official typical stays $230.56.

What does an HVAC replacement permit cost at $5,000, $7,500, and $16,000 in Houston?

Listed assumed valuations for HVAC replacement in Houston, TX are $5,000 low, $7,500 typical, and $16,000 high. The official typical project value is $7,500. The published path is 2% of valuation + $47, then the $33.56 administrative fee. Low $5,000 is 0.02×5000+$47=$147 + $33.56 = $180.56. Typical $7,500 is 0.02×7500+$47=$197 + $33.56 = $230.56. High $16,000 is 0.02×16000+$47=$367 + $33.56 = $400.56. The $91.06 minimum before admin is not binding on these three valuations. The official extras are the $197 repairs/alterations line and the $33.56 administrative fee, and both are included in the typical total. The alternate complete-system line of $124.62 stays in extras and is not included in that total.