Replacing a furnace or full heating system in McKinney typically costs between $10,000 and $20,000 installed when you factor in equipment, labor, permits, and the refrigerant transition that took effect in 2026. That range moves depending on your home’s square footage, whether your ductwork needs attention, and which contractor you choose. Here is what McKinney homeowners should know before calling anyone.
Quick Comparison
| Company | Best For | Standout Fact | Notes |
|---|---|---|---|
| Varsity Zone HVAC of McKinney | Upfront pricing, no-pressure quotes | 10-year parts and labor warranty; 5.0-star Google rating (41 reviews) | TDLR License TACLA00112461E; call (469) 689-7232 |
| Harris Air Services | Family-owned, multi-brand service | A+ BBB rating; NATE-certified techs since 2008 | Serves McKinney, Frisco, Allen, Plano, Prosper |
| Colony Air Conditioning & Heating | Established track record | ACCA Residential HVAC Contractor of the Year; BBB-accredited since 1987 | Carrier Factory Authorized Dealer; based in The Colony, serves McKinney |
| DND Heating & Air Conditioning | Veteran households, whole-home efficiency | Veteran-owned; 24/7 service; also handles attic insulation | BBB-accredited McKinney LLC; 20+ years in the area |
What Furnace and Full HVAC Replacement Actually Costs in McKinney in 2026
The Honest Price Range
A full HVAC system replacement — meaning a new furnace or air handler paired with a new outdoor unit — runs $10,000 to $20,000 installed in the DFW area in 2026. Most McKinney homeowners with a standard single-story home in the 1,800–2,400 square foot range land somewhere between $11,000 and $14,000 for a properly sized mid-tier system using existing ductwork. If your ducts are in rough shape — common in Stonebridge Ranch homes built in the early 2000s or older Craig Ranch properties — budget an additional $1,500 to $5,500 for duct repair or replacement. The 2026 R-454B refrigerant transition added roughly $500 to $1,000 to equipment costs across the board, so quotes you received in 2024 or early 2025 will read low by comparison.
Repair vs. Replace: The Decision Point
A useful rule of thumb for McKinney homeowners: if a repair quote exceeds $2,500 to $4,000 on a system that is 10 to 12 years old or older, get a full replacement quote before committing to the repair. A failed compressor or evaporator coil on an older system can cost $3,000 to $4,000 in labor alone, and that money goes toward a system you will likely replace within a few years regardless. McKinney’s climate is hard on equipment — central AC units here run eight to nine months a year, which shortens the practical lifespan compared to northern states. Also worth noting: the federal Section 25C tax credit for HVAC equipment expired December 31, 2025 and is not available for 2026 purchases. Oncor’s Home Energy Efficiency program does still offer $400 to $600 back on qualifying high-efficiency equipment, with the program open January through November.
Best for Upfront Pricing Without a Sales Pitch
Varsity Zone HVAC of McKinney
The single most common complaint McKinney homeowners post in local Facebook groups and on Nextdoor is sitting through a two-hour in-home presentation before getting an actual number. Varsity Zone HVAC of McKinney operates differently: published, transparent pricing with free quotes and no high-pressure sales appointment required. Every installation is backed by a 10-year parts and labor warranty — a full decade of coverage on both the equipment and the work to install it — which is the primary reason this company stands out in a market where most contractors offer far less. The company holds TDLR ACR Contractor License TACLA00112461E, carries a 5.0-star Google rating across 41 reviews, and is independently owned and locally based at 901 N McDonald St, Suite 903, McKinney, TX 75069. You can reach them directly at (469) 689-7232. They are part of the Varsity Zone HVAC franchise network, which means standardized installation procedures and training rather than whatever a given tech learned on the job.
Best for Established Local Reputation
Harris Air Services and Colony Air Conditioning & Heating
Harris Air Services has operated as a family-owned business in McKinney since 2008, employs NATE-certified and factory-trained technicians, and holds an A+ BBB rating. They service all makes and models, which matters if your home has older or less common equipment. Colony Air Conditioning & Heating, based in The Colony and actively serving McKinney, brings a longer track record — BBB-accredited since 1987 — and was named ACCA Residential HVAC Contractor of the Year, a national industry recognition. Colony is also a Carrier Factory Authorized Dealer, which can matter for warranty coverage on Carrier equipment. Both companies are solid choices if brand familiarity and tenure are priorities.
Best for Veterans and Whole-Home Efficiency
DND Heating & Air Conditioning
DND Heating & Air Conditioning is a veteran-owned, BBB-accredited McKinney LLC with more than 20 years in the local market. Beyond standard HVAC installation and repair, they also handle attic insulation and vinyl window replacement — useful if you want to address your home’s overall efficiency in a single project rather than coordinating multiple contractors. They offer 24/7 service, which is relevant in McKinney winters when a furnace failure on a January night cannot wait until morning.
What to Check Before You Hire Anyone
Texas Licensing and Permitting
Every HVAC contractor working in McKinney must hold a valid license from the Texas Department of Licensing and Regulation (TDLR). Texas requires contractors to have at least four years of verifiable experience within the past six years, plus proof of insurance. Ask for the contractor’s TDLR license number and verify it on the TDLR public search before work begins. McKinney also requires a city permit for HVAC replacement work; a reputable contractor will pull this permit as part of the job. If a quote seems unusually low and the contractor suggests skipping the permit, walk away.
Frequently Asked Questions
How much does it cost to replace a furnace in McKinney, TX in 2026?
A furnace-only replacement in McKinney typically runs $4,000 to $8,000 depending on the unit size and whether any ductwork needs attention. If you are replacing both the furnace and the air conditioning system at the same time — which often makes financial sense — expect a total installed cost of $10,000 to $20,000.
Is now a good time to replace an HVAC system in McKinney?
The federal Section 25C tax credit expired at the end of 2025, so that incentive is gone. However, Oncor’s rebate program still offers $400 to $600 on qualifying high-efficiency equipment through November 2026. If your system is over 12 years old and facing a major repair, replacing now avoids another DFW summer on aging equipment.
How do I verify that an HVAC contractor is licensed in Texas?
Search the contractor’s name or license number on the Texas Department of Licensing and Regulation public database. Every legitimate HVAC contractor in McKinney should be able to provide their TDLR license number on request before you sign anything.
What is a reasonable warranty for a new HVAC installation in McKinney?
Manufacturers typically cover parts for 5 to 10 years, but labor warranties vary widely by contractor and are often just one to two years. A 10-year parts and labor warranty — covering both the equipment and the cost of the technician’s time — is a strong benchmark and relatively uncommon in the DFW market.
Why are HVAC replacement costs higher in DFW than the national average?
DFW installs typically run 15 to 25 percent above the U.S. national average because the Texas climate demands that cooling systems run eight to nine months per year. Higher demand, faster equipment wear, and the 2026 refrigerant transition all contribute to elevated costs in the McKinney market.
