Top 7 HVAC companies in Collin, Texas

How to choose

Companies are ranked by a Bayesian-adjusted rating: a company's star rating is pulled toward the national mean until it has enough reviews to stand on its own, so a 5.0 from four customers does not outrank a 4.9 from two hundred. Small tie-breakers apply for a public website, for being listed as an HVAC specialist rather than a general contractor, and for published 24/7 availability. This is a shortlist built from public listing data, not a review of work performed.

The shortlist

Crow’s Heat & Air- Princeton

Crow’s Heat & Air- Princeton sits at 300 W Princeton Dr Apt 10, Princeton, TX 75407 and lists (972) 548-1323. Its raw 5.0 from 94 reviews rose only 0.003 points after adjustment pulled the score toward the 4.764 national mean; the modest lift reflects the already-large review count. The Services category and 24/7 listing together indicate a firm structured for both routine and emergency residential calls. Numbers alone cannot reveal whether the firm’s technicians hold current EPA 608 credentials or how many recent jobs were performed inside Collin County.

Tony T A/C & Heating

Tony T A/C & Heating operates from 2101 Glorioso Ln, Princeton, TX 75407 with phone (972) 839-5307. Its raw 5.0 from 37 reviews was adjusted downward to 4.954 because the national mean sits lower; the 37-review base still keeps the final score above firms with fewer records. The Services category and published 24/7 hours point to a residential focus that accepts after-hours work. Review volume remains too small to indicate long-term callback rates.

Varsity Zone HVAC of McKinney

Varsity Zone HVAC of McKinney lists 901 N McDonald St Ste 903, McKinney, TX 75069 and (469) 689-1218. Its raw 5.0 from 43 reviews adjusted to 4.943; the drop occurs because the ranking formula tempers any score above the 4.764 mean in proportion to review depth. The General contractor category without 24/7 status suggests the firm schedules most work during standard business hours. The single public website signal does not disclose actual job completion times.

Perfect Climate Air, LLC

Perfect Climate Air, LLC is at 1400 Shady Bend Dr, McKinney, TX 75071 and reachable at (214) 733-3798. Its raw 5.0 from 23 reviews moved down to 4.926 after adjustment; fewer reviews produce a larger pull toward the mean. The General contractor listing plus 24/7 availability implies readiness for both planned replacements and urgent service. With only 23 reviews the arithmetic cannot yet separate marketing claims from field performance.

Hayward Air

Hayward Air lists 7122 Horizon Trail, McKinney, TX 75071 and (214) 340-1085. Its raw 5.0 from 17 reviews adjusted to 4.889; the larger downward shift reflects the smaller sample size. The General contractor category without round-the-clock hours points to daytime scheduling. Seventeen reviews supply almost no data on repeat-customer frequency or seasonal capacity.

Aire Serv of McKinney

Aire Serv of McKinney is located at 703 N Chestnut St Ste A, McKinney, TX 75069 and answers (214) 838-7193. Its raw 4.8 from 38 reviews rose to 4.844 because the score sat below the national mean and was therefore lifted; the adjustment distance is 0.044 points. The General contractor listing and 24/7 status together suggest a broad service footprint that includes nights and weekends. Thirty-eight reviews still leave room for variance in actual workmanship.

TRI COUNTY AIR CARE

TRI COUNTY AIR CARE operates from 801 Co Rd 286 #601, Anna, TX 75409 and lists (469) 617-3437. Its raw 4.8 from 96 reviews adjusted upward only 0.031 points to 4.831; the higher review count limited the lift. The General contractor category without 24/7 hours indicates daytime scheduling for most jobs. Ninety-six reviews give a clearer picture than smaller samples, yet still omit details on parts sourcing or post-install support.

Cost

Installed costs in Collin County sit at the national average. One dataset places a typical full system between $8,100 and $9,900. A second set of 2025 invoices reports an average of $13,050 with the upper quartile at $21,118. Labor is published at $100 per hour. Permit fees range from $100 to $400 depending on the municipality. The two cost sources diverge because one reflects contractor estimates while the other captures actual billed amounts; both figures should be treated as reference ranges rather than fixed quotes. Homeowners comparing bids will therefore see spreads driven by equipment tier, duct modifications and local permit rules.

Licensing and permits

Texas issues HVAC licenses at the state level through the Texas Department of Licensing and Regulation (TDLR) — Air Conditioning and Refrigeration Contractors (ACR) Program. Class A covers any size unit; Class B is limited to cooling systems 25 tons and under and heating systems 1.5 million BTU/hour and under, each with optional endorsements. Class A requires $300,000 per occurrence and $600,000 aggregate liability plus $300,000 products/completed operations; Class B minimums are half those amounts. The state does not mandate insurance beyond these floors, nor does it require workers’ compensation for sole proprietors. Permits themselves are issued by the local city or county building department; some municipalities add their own HVAC registration on top of the TDLR license. Verification is performed at the public TDLR lookup before any contract is signed.

Incentives

Texas Home Energy Rebates remain conditionally approved with an expected 2026 launch and a planned $8,000 heat-pump maximum. Utility programs through Oncor and others currently pay $200–$1,800 but require the installer to be registered in the utility network. No state income-tax credit exists because Texas has none; a solar property-tax exemption is available. Federal 25C and 25D credits expired at the end of 2025, leaving only the commercial 48E ITC. These rules narrow the installer pool to firms already inside utility networks if rebate dollars are part of the financing plan.

Climate

Collin County falls inside IECC zones 2A/3A with a cooling-dominant load of 2,900 cooling degree days against 1,700 heating degree days. Design conditions reach 96 °F in summer and 32 °F in winter. Humidity is high enough in summer to drive latent loads, while occasional winter storms have exposed undersized heating capacity. Equipment must therefore be sized for peak cooling with attention to dehumidification; heat pumps remain suitable. Oversizing risks short cycling and poor humidity control in this market.