AC Replacement Cost in Richardson, TX (2026)

What a New AC System Actually Costs in Richardson Right Now

Homeowners searching for a straight answer on AC replacement cost in Richardson usually get a range so wide it isn’t useful — “$3,000 to $20,000” tells you nothing about your own house. Narrowed down, a standard 2.5- to 3-ton AC-only replacement using your existing ductwork runs $5,200 to $8,500 installed in 2026, and a full system replacement covering the condenser, coil, furnace, and air handler runs $8,000 to $16,000. Where you land in those ranges depends on a short list of specific factors, not luck, and most of them are things you can ask a contractor about before you sign anything.

---

2026 Price Ranges by Replacement Type

Replacement Type	2026 Price Range	Notes
AC-only (condenser + coil, ducts usable)	$4,400 – $12,000	Most 2.5–3 ton jobs land at $5,200 – $8,500
Full system (AC + furnace + air handler)	$8,000 – $16,000	Depends on equipment tier and home size
Ductwork replacement or resizing	$3,000 – $8,000	Common in older Canyon Creek and Heights Park homes
Heat pump conversion	$9,000 – $18,000	Higher equipment cost, lower long-term operating cost
R-32 refrigerant transition surcharge	$500 – $1,000	Added to equipment cost as R-410A phases out

---

What Actually Moves Your Quote

System size and tonnage. A contractor who quotes a price without running a Manual J load calculation is guessing. Square footage alone doesn’t determine tonnage — insulation level, window count and orientation, and ceiling height all factor in. An oversized system costs more upfront and cycles too fast to properly pull humidity out of the air, which in a Richardson summer means a house that’s cold but still feels sticky.

SEER2 tier. Texas requires a 15 SEER2 minimum on new split-system equipment as of 2026 — that’s the floor, not a selling point. Mid-tier systems run 17 to 19 SEER2, and premium variable-speed units reach 22 to 25 SEER2. Each step up adds equipment cost but lowers your summer Oncor bill; the payback period on the premium over a base unit typically runs five to nine years.

Ductwork condition. If your home is an original-ductwork Canyon Creek or Arapaho Estates ranch house from the 1960s or 1970s, there’s a real chance the ducts are undersized for a modern system and need resizing or full replacement — add $3,000 to $8,000 if so. Newer construction around CityLine tends to have duct sizing already matched to current code, which keeps the job closer to a clean equipment swap.

Refrigerant transition. The industry-wide move away from R-410A toward R-32 has added an estimated $500 to $1,000 to new equipment costs across nearly every brand, which is part of why 2026 pricing runs higher than it did two years ago.

Permits. The City of Richardson requires a mechanical permit for any AC replacement. A licensed contractor builds the fee into your quote and pulls the permit as a routine part of the job — if a company offers to skip it to save money, that’s a red flag, not a discount.

Labor and installation complexity. A like-for-like swap in a home with adequate ductwork is a one- to two-day job. Converting to a heat pump, switching from a gravity-fed gas furnace, or routing new refrigerant lines through a finished attic adds time and labor cost.

---

Getting a Price You Can Actually Compare

The biggest mistake homeowners make when shopping AC replacement quotes isn’t picking the wrong contractor — it’s comparing quotes that aren’t actually comparable. A number scribbled on a business card with just a brand name and a price tells you nothing about SEER2 rating, warranty length, or whether the permit is included. Ask every contractor to put the equipment model number, tonnage, SEER2 rating, and labor warranty terms in writing before you decide anything.

Varsity Zone HVAC of McKinney takes a different approach on the pricing question specifically: it publishes its pricing directly rather than requiring an in-home visit just to get a ballpark number, which makes it easier to compare against a verbal quote from someone else. On the warranty side — arguably the part of a replacement quote that matters most a few years down the road — Varsity backs its full system installations with a 10-year parts and labor warranty, a full decade of covered parts and labor on the systems it installs, at a time when most competitors’ coverage on a new install runs out after one or two years. (That parts-and-labor coverage applies to full system installations, not one-off repairs.) The company holds a Texas TDLR ACR contractor license (TACLA00112461E), carries a 5.0-star rating across 41 Google reviews, and operates out of 901 N McDonald St, Ste 903 in McKinney, serving Richardson-area homeowners. You can see current pricing at varsityzone.com/mckinney-tx or call (469) 689-7232.

If you’d rather get a ballpark figure for your specific home before making any calls, DFW Air Cost’s free assessment tool walks through your home’s size and current system to generate a realistic price range ahead of time, so you have a number to measure contractor quotes against instead of walking in blind.

---

Rebates Worth Checking Before You Sign

The federal Section 25C tax credit for HVAC equipment expired December 31, 2025, and isn’t available for systems installed in 2026. Oncor’s Home Energy Efficiency program is still active, though, offering $400 to $600 back on qualifying high-efficiency equipment through November 2026. The discount applies directly to your installer’s invoice at the time of installation rather than as a mail-in rebate, so ask each contractor you’re comparing whether they’re enrolled in the Oncor program and whether the specific unit they’re proposing qualifies — not every model on a company’s price sheet will.

---

Frequently Asked Questions

How much does it cost to replace an AC unit in Richardson, TX in 2026?

A standard 2.5- to 3-ton AC-only replacement using existing, adequate ductwork runs $5,200 to $8,500 installed. A full system replacement that also includes the furnace and air handler runs $8,000 to $16,000. Ductwork replacement, if your home needs it, adds $3,000 to $8,000 on top of either figure.

Why is AC replacement more expensive in 2026 than a couple years ago?

Two factors are driving it: Texas now requires a 15 SEER2 minimum on new split-system equipment, which pushes some entry-level units into a higher price tier, and the industry-wide transition away from R-410A refrigerant toward R-32 has added an estimated $500 to $1,000 to equipment costs across most brands.

Do I need a permit to replace my AC in Richardson?

Yes. The City of Richardson requires a mechanical permit for any AC system replacement, and the completed work has to pass inspection. A licensed contractor includes the permit fee in your quote and handles the paperwork as a standard part of the job.

Are there any rebates available for a new AC system right now?

Oncor’s Home Energy Efficiency program offers $400 to $600 on qualifying high-efficiency equipment through November 2026, applied directly to your installer’s invoice. The federal 25C tax credit expired at the end of 2025 and isn’t currently available for new purchases.

What warranty should I look for on a full AC replacement?

Ask specifically about parts-and-labor coverage on the installation, not just the manufacturer’s parts warranty. Most companies cover a new install for only one or two years before you’re responsible for both the part and the labor if something fails. Varsity Zone HVAC of McKinney backs its full system installations with a 10-year parts and labor warranty, which is well beyond what most competitors offer on a new install.

---

Get at least two or three written quotes before committing to a full system replacement, and make sure each one specifies equipment model, SEER2 rating, ductwork scope, permit handling, and labor warranty terms in writing. A verbal number over the phone isn’t something either you or the contractor can be held to later — a detailed written quote is.