Best AC Replacement Companies in Plano, TX
AC Replacement in Plano: manufacturer authorization + warranty
On a $7–12K install, two facts predict ten-year outcomes: which manufacturer the contractor is authorized to install at full warranty terms, and how long they back their own labor. Here is what each of the 11 installers below publishes: In Texas, HVAC contractors must hold an active TDLR TACLA license — ask for the number and verify on tdlr.texas.gov before paying.
Top picks
Total Air & Plumbing
AC Replacement score: 4.9
Vouched Score: 91/100
Whole-system installer. Carrier Factory Authorized Dealer and NATE Certified.
- Dealer tier: Carrier Factory Authorized Dealer
- NATE: ✓
- Financing: ✓
- Free estimates: ✓
- Years: 65+
What customers say about ac replacement
Top to bottom, we had a great experience with Total Air & Heat. We needed a full system replacement so we received quotes from multiple companies. What sold us was their attention to detail, prompt communication, and reasonable cost for what we received. They replaced our entire system(indoor and outdoor), repaired ducts in crawl space, updated electrical requirements, and installed a new thermostat…all in a day. Total pros! Super impressed and very happy we chose Total Air!
Google 4.9★ (1,730+)BBB 3.0★ (2)
Collin Air Conditioning
AC Replacement score: 4.8
Vouched Score: 89/100
Whole-system installer. American Standard Factory Authorized Dealer and 10-Year Warranty.
- Dealer tier: American Standard Factory Authorized Dealer
- Warranty: 10-Year
- Financing: ✓
- Free estimates: ✓
- Years: 45+
What customers say about ac replacement
This is one of the most impressive companies that we have ever had the “pleasure” of doing business with. They are not just about selling but about “building” a relationship that is built on trust and quality. Collin recently replaced our HVAC unit and upgraded our insulation. Each and everyone of their employees was likeminded in courtesy, professionalism, and quality. They cleaned as they worked, they were responsive to questions/concerns, timely and quick to respond to phone calls, questions, etc…
Google 4.9★ (420+)
- Free estimates: ✓
- Years: 25+
What customers say about ac replacement
DT AC recently came out to quote a new air conditioning system. Zee was very personable, no slick salesman vibes at all, and promptly provided us with a reasonable estimate. We accepted their quote, and were put on their schedule right away. The crew came out during the time window given, and got straight to work. The guys had great attitudes and were surprisingly happy despite having to crawl around in a 110 degree attic. The crew was run very efficiently, too…
I recently had the pleasure of working with DT Air Conditioning and Heating Company for the installation of a new AC unit, and I couldn't be more satisfied with their service. From the initial consultation to the final installation, the entire process was seamless, professional, and efficient. The team arrived on time, well-prepared, and demonstrated exceptional knowledge about the products. They took the time to explain the installation process, answered all my questions thoroughly, and provided valuable recommendations tailored to my home’s needs…
Google 5.0★ (370+)BBB A+
Dragon Air Services LLC
AC Replacement score: 4.6
Vouched Score: 84/100
Whole-system installer. American Standard Customer Care Dealer and NATE Certified.
- Dealer tier: American Standard Customer Care Dealer
- NATE: ✓
- Financing: ✓
- Free estimates: ✓
- Years: 5+
What customers say about ac replacement
Dragon Air Services has provided all my HVAC maintenance for nearly 10 years and has done an outstanding job on every visit. They recently replaced my entire system and we couldn't be happier. They are simply the best.
Google 5.0★ (330+)BBB NR
Lex - Air Conditioning, Heating, Plumbing, Electrical
AC Replacement score: 4.4
Vouched Score: 81/100
Driven by: Trane Comfort Specialist Dealer
- Dealer tier: Trane Comfort Specialist
- Financing: ✓
- Free estimates: ✓
- Years: 20+
Google 4.8★ (2,315+)Yelp 3.3★ (85+)BBB 1.0★ (6)
- Free estimates: ✓
- Years: 20+
Google 5.0★ (85+)
Samm's Heating and Air Conditioning
AC Replacement score: 4.0
Vouched Score: 93/100
Driven by: American Standard Authorized Dealer
- Dealer tier: American Standard Authorized Dealer
- Financing: ✓
- Free estimates: ✓
- Years: 20+
Google 4.9★ (1,595+)
- Financing: ✓
- Free estimates: ✓
- Years: 55+
Google 4.9★ (375+)BBB 1.0★ (1)
- Warranty: 5-Year
- Financing: ✓
- Free estimates: ✓
- Years: 20+
What customers say about ac replacement
True to their name, we got absolute 1st Class service!! We called them just after 5pm on a Friday to get our 3rd quote to replace our two AC units. We talked with Randy and he answered all our questions, was very helpful, honest and easy to talk with. Was able to provide a quote over the phone and even though it was Friday evening, he sent someone out to walk us through everything. Aaron arrived shortly after and was super helpful, friendly, and easy to talk with. We settled everything, and they were able to get two crews to come out the following morning on Saturday…
Google 4.7★ (455+)
- Financing: ✓
- Free estimates: ✓
- Years: 15+
Google 4.8★ (345+)BBB 4.38★ (10+)
- Financing: ✓
- Free estimates: ✓
- Years: 35+
Google 4.8★ (280+)
Typical AC Replacement costs in Plano, TX (2026)
Last updated
Estimated ranges for Plano, TX. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Full AC system replacement (3-ton, installed) | $4,550–$11,400 |
| R-454B equipment upcharge (vs equivalent R-410A tier) | $365–$1,100 |
| SEER2 17+ high-efficiency upcharge (utility rebate tier) | $730–$2,300 |
| Ductwork modification (resize / re-balance per Manual D) | $545–$2,000 |
2026 note on equipment: All new residential AC equipment manufactured after Jan 2025 uses R-454B refrigerant — if a contractor is still quoting R-410A new installs in 2026, ask why (likely old inventory). Federal Section 25C tax credit expired Dec 31, 2025, so state and utility rebates are the surviving incentives; SEER2 17+ models typically unlock $500–$1,200 in utility rebates (Oncor, CPS, SRP, etc.) — confirm directly with your utility before pricing the install.
R-454B refrigerant in 2026: what Plano AC replacement buyers need to know
All new residential AC and heat-pump equipment manufactured after Jan 1, 2025 uses R-454B refrigerant — the EPA AIM Act phase-down replaces R-410A (global warming potential 2,088) with R-454B (GWP 466). If a contractor in Plano quotes R-410A new equipment in 2026, ask why: it's almost certainly discontinued inventory, and you'd be locked into a refrigerant scheduled for full phaseout by 2032.
R-454B is not drop-in compatible with R-410A — different operating pressures, different POE lubricants, different leak-test procedure. Equipment-side cost runs about $400–$1,200 over the equivalent R-410A tier (see the pricing table above). The bigger consideration is contractor capability: R-454B is mildly flammable (A2L classification), so leak detection, brazing, and recovery practices changed in 2025 — your installer needs A2L-specific training, not just EPA 608 Universal.
Before signing an R-454B install quote, ask each contractor:
- Is your technician certified on A2L refrigerants by the manufacturer? Carrier, Trane, Lennox, Rheem, and York all run dealer A2L courses — generic EPA 608 isn't enough for safe 2026 install practice.
- What leak detector are you using on this install? Older R-410A-only detectors miss R-454B leaks. You want an A2L-rated infrared or heated-diode unit.
- How will warranty refrigerant be sourced if there is a mid-cycle supply disruption? R-454B is the long-term residential standard, but ask how the dealer would source it 2027–2028 if a supply shock hits — a documented supplier chain beats a verbal assurance.
What Every Plano Resident Should Know Before Scheduling Service
- What's the federal minimum SEER2 rating for a new AC in 2026?
- 14.3 SEER2 in southern states (FL, TX, AZ, CA, GA, NV, NM), 13.4 SEER2 in northern states. Anything sold new in 2026 meets at least that floor; the choice is whether to pay for 15.2+ to qualify for utility-rebate tiers and lower bills.
- The federal Section 25C tax credit expired — what incentives are left?
- 25C and 25D expired December 31, 2025. The surviving residential incentives are state and utility rebates (Oncor, SRP, APS, CenterPoint, Mass Save, etc.) plus state HEEHRA programs where active. Confirm any rebate the installer cites is a current state or utility program, not the lapsed federal credit.
- Why does North Texas humidity require a specialized HVAC contractor?
- Choosing a contractor familiar with North Texas humidity is essential because local moisture levels often require specialized equipment settings and proper system sizing. Standard cooling units may struggle to effectively remove humidity, which can lead to indoor air quality issues or mold growth in older homes. Local experts understand how to calibrate systems for the specific climate conditions found in Plano, ensuring your home remains comfortable and your equipment operates efficiently.
- Typical HVAC pricing in Plano, TX: what should I budget?
- Full AC system replacement typically runs $4,550–$11,400 in Plano, Texas. See the HVAC pricing table on this page for the full per-service breakdown.