Skip to content
Texas AC Guide

AC and Furnace Replacement Cost in Houston

Last updated

Estimate for your Houston home

AC and Furnace Replacement · Houston

$11,404 to $17,818

Size your house needsTons is cooling capacity, not weight. One ton covers roughly 600 sq ft in most of Texas.
3.5 tons
Efficiency ratingSEER2 is the efficiency rating. A higher number means a lower power bill. 14.3 is the legal minimum in Texas.
14.3 SEER2
Cooling savings, per year
$318
  • 3.5 ton ac and furnace replacement for roughly 2,000 sq ft in Houston
  • 14.3 SEER2, the federal minimum for Texas

This is an estimate, not a quote. Correct sizing comes from a Manual J load calculation that accounts for your insulation, windows and orientation. Ask any contractor for theirs in writing.

The short answer

AC and Furnace Replacement in Houston usually runs $11,404 to $17,818 for a 2,000 sq ft home. Replacing cooling and heating equipment at the same time, which is usually cheaper than doing them two years apart.

What you would save in Houston

A new system at 14.3 SEER2 would cut the cooling bill on this house by about $318 a year, roughly $3,184 over ten years. Pick a higher efficiency in the calculator and the figure moves with it, as does any rebate that efficiency unlocks.

  • 3.5 tons running about 2,100 full-load hours a year in Houston
  • Current system about 11.0 SEER after 15 years of wear, new system 14.3 SEER2
  • Electricity at 15 cents per kWh

What drives the price here

Your system runs far more than the national average

This is the single biggest reason national cost guides mislead Houston homeowners. Cooling season here runs most of the year, and a system accumulates compressor hours at a pace that national lifespan figures were never built around. The practical effect is that equipment reaching its mid teens in Houston is closer to the end of its usable life than the same equipment would be in a milder climate, and the repair-versus-replace math tips earlier as a result.

Bigger is not better here, and it is the expensive mistake

Houston air carries a heavy moisture load, and removing that moisture takes run time. An oversized system cools the air fast, satisfies the thermostat, and shuts off before it has dehumidified anything. The house ends up cold and clammy, the homeowner concludes the unit is undersized, and the next replacement is bigger still. If a contractor proposes going up a half ton or a full ton without a load calculation to justify it, that is the moment to slow down.

CenterPoint Energy delivers your power, someone else sells it

Houston is in the deregulated part of the Texas market. You buy electricity from a retail provider you chose, while CenterPoint Energy owns the wires and runs the efficiency programs. The practical consequence for a replacement is that incentives usually flow through a participating contractor rather than being something you apply for yourself, so whether your contractor is enrolled in the program directly determines whether you see the money. Ask before you sign, not after.

When the equipment in this market was installed

Enormous slab-on-grade stock with attic air handlers, where humidity and duct condensation problems compound as systems age. That matters for a practical reason: systems installed with a house tend to fail on a similar schedule across a neighborhood, so an unusually busy season for contractors in one part of Houston is often a whole subdivision reaching end of life at once. It also affects wait times, since the same weeks are busy for everyone.

Brands, and what the badge changes

For a whole system the brand matters less than the installer, and less than most people expect. At the same SEER2, a value-tier and a mainline unit deliver the same cooling; what you are paying for at the higher tiers is quieter, variable-speed equipment, a longer feature list and a denser dealer network. The pairs below are the same equipment under two names.

Carrier · also sold as Bryant

Bryant is Carrier equipment sold through a different dealer network, usually for less. Ask a Carrier dealer whether they also carry Bryant.

Made by Carrier Global

How to check a quote before you sign

  1. Verify the license. Air conditioning contractors in Texas are licensed by the Texas Department of Licensing and Regulation. Ask for the ACR license number and confirm it is active and held by the company, not borrowed from someone who no longer works there.
  2. Ask for the Manual J. In writing. If the tonnage came from square footage alone, the sizing is a guess.
  3. Confirm the permit is included in the price and pulled by the contractor.
  4. Check the coil and condenser are a matched set. Replacing only the outdoor unit leaves a mismatched system that underperforms its rating and can void the warranty.
  5. Get the model numbers and confirm the efficiency rating yourself rather than taking the figure on the proposal at face value.
  6. Get more than one quote. Spread on this work is wide, and the second quote is the cheapest information you will ever buy.

Common questions

How much does ac and furnace replacement cost in Houston?
Most Houston homeowners pay $11,404 to $17,818 for ac and furnace replacement. Replacing cooling and heating equipment at the same time, which is usually cheaper than doing them two years apart.
How long should this last in Houston?
15 to 20 years is the usual range, and Houston systems land in the lower half of it because equipment here runs far more hours per year than the national average.
Do I need a permit for this work?
Permit rules are set by the local jurisdiction rather than the state, so they differ across Texas. We publish the rule for Houston on this page once we have confirmed it directly with the permitting authority.

Other work in Houston

Repairs and parts in Houston

Texas AC Guide is not a contractor and does not perform HVAC work. Cost figures are estimates based on typical Houston installations and are not a quote.