HVAC Replacement Cost in 2026: Full Price Guide
Replacing an HVAC system is the biggest single equipment purchase most homeowners make — and quotes for identical work can differ by $3,000+. These tables show what full replacement actually costs in 2026 by system type and size, so you can tell a fair quote from a padded one before you sign anything.
Replacement cost by system type (installed)
| Service | Typical cost (2026) | Notes |
|---|---|---|
| Central AC only (condenser + coil) | $3,800 – $7,500 | Keeps existing furnace/air handler |
| AC + gas furnace (full system) | $6,000 – $12,000 | The most common TX replacement |
| Heat pump + air handler | $5,500 – $11,000 | Heats and cools; growing fast in TX |
| Ductless mini-split (single zone) | $3,000 – $5,500 | Garages, additions, bonus rooms |
| Ductless mini-split (multi-zone) | $7,000 – $15,000 | 2–5 indoor heads |
| Packaged unit (rooftop/pad) | $5,500 – $10,000 | Some older TX and commercial setups |
2026 installed prices including equipment, labor, permits and standard materials. Ductwork replacement is extra — see below.
Replacement cost by system size (AC + gas furnace)
| Service | Typical cost (2026) | Notes |
|---|---|---|
| 1.5 ton (600–900 sq ft) | $4,500 – $7,500 | Full AC + furnace system |
| 2 ton (900–1,200 sq ft) | $5,000 – $8,500 | — |
| 2.5 ton (1,200–1,500 sq ft) | $5,500 – $9,000 | — |
| 3 ton (1,500–1,800 sq ft) | $6,000 – $9,800 | Most common TX home size |
| 3.5 ton (1,800–2,100 sq ft) | $6,500 – $10,500 | — |
| 4 ton (2,100–2,400 sq ft) | $7,000 – $11,000 | — |
| 5 ton (2,400–3,000+ sq ft) | $7,800 – $12,500 | Large two-story homes |
Mid-efficiency (15–16 SEER2) equipment. Square footage is a rough proxy only — proper sizing requires a Manual J load calculation, especially in humid Texas markets where oversizing hurts comfort.
What drives the price
- Efficiency rating (SEER2). Moving from 14.3 SEER2 base equipment to 18–20 SEER2 variable-speed adds $2,000–$4,000 — and can cut Texas summer cooling bills by 25–40%. In a 2,500-runtime-hour climate, high efficiency pays back faster than almost anywhere else in the US.
- Ductwork. Full duct replacement adds $2,000–$5,000. Sealing and partial repairs run $300–$800 and are often all that is needed.
- Installation difficulty. Attic air handlers, tight closets, electrical panel upgrades ($500–$2,000) and new line sets all add real cost.
- Brand and warranty. Premium brands cost 10–20% more for equipment with similar internals; the 10-year parts warranty and the quality of the installing contractor matter more than the badge.
What homeowners actually pay in Texas
Aggregator sites quote national averages that underweight the Texas labor market. In 2026, Texas homeowners report paying $7,500–$9,500 for a standard 3-ton AC + furnace swap in Houston, DFW, Austin and San Antonio — with San Antonio typically 5–10% below the other three. Quotes under $5,500 for a full system deserve scrutiny: either the equipment is bottom-tier, the warranty is short, or corners are being cut on the install.
Get 2–3 real quotes before you commit
We match you with licensed contractors in your ZIP. Compare itemized bids — equipment model, warranty, scope — line by line.
Before you replace
- AC repair cost guide — is repair actually the better math? (The $5,000 rule.)
- AC not cooling? — rule out the $150 fixes first
- Best HVAC companies in Texas — who to call for bids
Frequently asked questions
A full AC + furnace replacement averages $6,000–$12,000 in Texas, with most homeowners landing near $8,500 for a 3-ton, mid-efficiency system. High-efficiency variable-speed systems run $12,000–$16,000+.
Yes — typically $1,000–$2,000 cheaper than two separate jobs, because the coil, refrigerant work and labor overlap. If both units are past mid-life, replacing together also avoids mismatched-efficiency problems.
A like-for-like swap is one full day. Add a second day if ductwork modifications, new line sets, electrical upgrades or a location change are involved.
Increasingly yes. Texas winters are mild enough that modern heat pumps heat efficiently, and you get cooling and heating from one system. The 2021-style freeze risk is manageable with auxiliary heat strips — discuss sizing with your contractor.
Incentive programs change frequently — federal credits, state programs and local utility rebates (CenterPoint, Oncor, Austin Energy, CPS Energy) all have their own rules and budgets. Ask each quoting contractor to list every incentive they will file for you, and verify current programs before you sign.
Most contractors offer financing — commonly 0% for 12–18 months or longer terms at 7–12% APR. Compare the contractor’s offer against a home equity line if the amount is large.
Get free replacement quotes
Tell us what you need and we will match you with licensed HVAC contractors that service your ZIP code. Free, fast, no obligation.