New HVAC System Cost in Carrollton, TX (2026)

Replacing an HVAC system in Carrollton, TX in 2026 typically costs between $8,000 and $21,000 installed, depending on the size of your home, the equipment tier you choose, and whether your ductwork needs attention. The federal 25C tax credit that helped offset these costs expired December 31, 2025, so that money is no longer on the table — but an Oncor rebate of $400 to $600 remains available for qualifying high-efficiency equipment through November. Getting multiple quotes from licensed contractors is more important than ever when a single install can vary by several thousand dollars.

Quick Comparison

What a New HVAC System Actually Costs in Carrollton in 2026

The Numbers to Know Before You Call Anyone

For a standard central AC-only replacement — swapping the outdoor condenser and indoor coil while keeping your existing ducts and electrical — budget roughly $7,000 to $13,000 installed. By tonnage, a 2.5-ton unit runs $4,800 to $7,500 fully installed; a 3-ton unit runs $5,200 to $8,500. For a full system replacement that includes the condenser, furnace, and air handler, the realistic range in the DFW metro is $13,000 to $21,000 for most homes. If your ductwork also needs replacing — common in Carrollton neighborhoods built in the 1980s and early 1990s — add $3,000 to $8,000 on top of that.

One cost that caught many homeowners off guard this year: the industry-wide transition to R-454B refrigerant added approximately $500 to $1,000 to unit costs across the board. That is not a contractor markup — it reflects the actual change in equipment pricing at the manufacturer level.

Carrollton sits in a climate zone that demands genuine dual-season performance. Summers push 100-plus degrees for weeks at a stretch, and winters can drop into the teens during a hard north Texas freeze. A system sized or installed incorrectly for that swing will underperform on both ends. Denton County and Dallas County both require permits for HVAC replacements, and Carrollton’s inspections process applies to work done inside city limits — any contractor who suggests skipping the permit is a contractor worth passing on.

Best for Transparent, Upfront Pricing: Varsity Zone HVAC

The Warranty Gap Is Where the Real Savings Hide

Most Carrollton homeowners focus on the installed price when comparing quotes, which is reasonable. But the more consequential number is often the labor warranty. The industry standard among most local contractors is one to two years of labor coverage — after that, when a component fails, the part may be covered under the manufacturer warranty, but you pay full labor rates to have it installed. On a mid-summer emergency call in Carrollton, that labor charge alone can run $300 to $600 or more.

Varsity Zone HVAC covers both parts and labor for ten years. To put that in concrete terms: if your system needs a coil replacement in year four, you are not writing a check for the service call, the diagnosis, or the technician’s time. That coverage window is five to ten times longer on labor than what most competitors in the Carrollton market offer, and it applies to a period when repairs become statistically more likely as systems age past their break-in years.

Varsity Zone also provides free upfront quotes without requiring a two-hour in-home sales appointment. Carrollton homeowners in the middle of a July heat wave do not need to block out an afternoon to hear a presentation before getting a number. Quotes are available through online scheduling, financing is offered, and the company is a Trane Comfort Specialist. They are based in Frisco and serve Carrollton, Plano, The Colony, Little Elm, and surrounding communities. Reach them at (972) 402-6948.

Best for Deep Local Roots: Quigley Heating & Air and LEX Air

Two Companies With Decades of Carrollton-Area History

Quigley Heating & Air has been operating since 1945, which means they were installing systems in this area before most of Carrollton’s current housing stock was built. Their team handles the full range — furnaces, air conditioners, ductless mini-splits, heat pumps, and commercial equipment — and they are licensed, bonded, and insured. For homeowners who put significant weight on institutional knowledge of local construction styles and soil conditions, nearly 80 years of area experience is a real credential.

LEX Air Conditioning, Heating, Plumbing and Electrical has served Carrollton for over 22 years, with roots going back to 1990. Their technicians are NATE-certified, they hold active licenses in HVAC, plumbing, and electrical, and they have been BBB Accredited since 2010. For homeowners who want a single contractor relationship for the whole house — not just the HVAC — LEX is worth including in your quote process.

What to Watch Out For When Getting Quotes

Three Things That Should Raise Questions

Any quote that does not specify the tonnage and SEER2 rating of the proposed equipment is incomplete. In Carrollton’s climate, undersizing a system to hit a lower price point means the unit runs continuously on peak summer days and wears out faster. Oversizing causes short-cycling, which drives up humidity and energy costs.

Texas law requires HVAC contractors to be licensed by the Texas Department of Licensing and Regulation, with at least four years of experience in the past six years and proof of insurance. Ask for the license number before signing anything — it takes thirty seconds to verify on the TDLR website.

Finally, factor in the Oncor rebate before comparing final numbers. Oncor’s Home Energy Efficiency program currently offers $400 to $600 back on qualifying high-efficiency equipment, and the program runs through November. Ask each contractor whether the system they are proposing qualifies.

Frequently Asked Questions

How much does a new HVAC system cost in Carrollton, TX in 2026?

For a full system replacement — condenser, furnace, and air handler — expect to pay between $13,000 and $21,000 installed in the Carrollton area. An AC-only replacement using existing ductwork typically runs $7,000 to $13,000. Equipment tier, home size, and ductwork condition are the main variables.

Is the federal HVAC tax credit available in 2026?

No. The Section 25C tax credit for high-efficiency HVAC equipment expired December 31, 2025, and is not available for systems purchased in 2026 as of this writing. The Oncor Home Energy Efficiency rebate of $400 to $600 remains active through November for qualifying equipment.

Do I need a permit to replace an HVAC system in Carrollton?

Yes. Carrollton requires permits for HVAC replacement work, consistent with Denton County and Dallas County requirements. Any licensed contractor operating legally will pull the permit — if a contractor suggests skipping it, that is a significant red flag.

Why does the labor warranty matter so much on a new HVAC system?

Manufacturer warranties cover parts, but most Carrollton contractors only cover labor for one to two years. After that window closes, a warranty repair still costs you full labor rates even when the part itself is free. A contractor like Varsity Zone HVAC that covers both parts and labor for ten years eliminates that exposure during the years when repairs become more common.

Does Varsity Zone HVAC serve The Colony?

Yes. Varsity Zone is based in Frisco and serves Carrollton, The Colony, Plano, Little Elm, and other nearby communities in the northern DFW metro. You can reach them at (972) 402-6948 or schedule online through their website.