Top 7 HVAC companies in Bexar, Texas

The shortlist

Bexar County sits in a cooling-dominant climate zone where summer loads drive most service calls. The shortlist that follows ranks seven San Antonio-based firms using a Bayesian-adjusted rating that pulls each raw score toward the national mean of 4.764. Companies with fewer reviews move farther toward that mean. Tie-breakers favor a public website, specialist listing category, and published 24/7 availability. This is a shortlist built from public listing data, not a review of work performed.

How to choose

Review volume, adjusted rating, and the three tie-breakers determine order. Larger review counts give a rating more stability; smaller counts produce larger movement toward the national mean. A firm listing as a general contractor rather than services-only receives a small edge, as does one showing 24/7 availability. License class and local permit history remain outside the ranking formula. Homeowners must verify both directly.

The shortlist

AZ Tech America

AZ Tech America holds 52 reviews at a raw 5.0. Its adjusted rating sits at 4.914 after the Bayesian pull toward 4.764. The firm lists at 438 W Baylor St, San Antonio, TX 78204 and can be reached at (210) 818-8932. It appears as a general contractor with published 24/7 availability, both of which supplied the tie-breakers that secured first place. The modest review count still produces only a 0.086-point adjustment. These numbers say nothing about how the company actually performs on any given job or how it handles warranty claims.

Texas Tone Heating, AC and Refrigeration

Texas Tone Heating, AC and Refrigeration records 16 reviews at a raw 5.0, adjusted downward to 4.846. Its address is listed as N/A, San Antonio, TX 78233; the phone number is (210) 668-0788. The firm appears under the Services category yet publishes 24/7 availability, earning the two tie-breakers that placed it second. The smaller review count moves the score 0.154 points toward the national mean. The data cannot reveal whether the company maintains adequate parts stock for same-day repairs.

Comfort Heroes of Texas Heating & Cooling

Comfort Heroes of Texas Heating & Cooling shows 12 reviews at a raw 5.0 that adjusts to 4.831. The address is 2507 Tampico St, San Antonio, TX 78207 and the phone is (210) 928-7080. Listed as Services with 24/7 availability, it earned the same tie-breakers as the firm above. Fewer reviews create a 0.169-point adjustment. Nothing in the rating indicates how the company manages multi-day installations or handles after-hours emergency scheduling.

Texas HVAC Heating LLC

Texas HVAC Heating LLC carries 16 reviews at a raw 5.0 adjusted to 4.846. Its address is 5504 Bandera Rd Suite 614, San Antonio, TX 78238 and its phone number is (210) 564-4846. It lists as a general contractor but does not publish 24/7 availability, limiting tie-breakers and placing it fourth. The adjustment is again 0.154 points. The figures give no information on technician training or response times outside normal business hours.

Air Star Heating and A.C., Inc.

Air Star Heating and A.C., Inc. has 19 reviews at a raw 4.8 that adjusts to 4.778. The address is 12127 Jones Maltsberger Rd, San Antonio, TX 78247 and the phone is (210) 599-7827. Listed as a general contractor with a public website, it received one tie-breaker. The raw rating sits 0.036 above the national mean; the modest review count pulls it down only 0.022 points. These numbers cannot speak to equipment brand preferences or typical lead times for new-system quotes.

Gillette AC Co.

Gillette AC Co. lists 38 reviews at a raw 4.5 that adjusts upward to 4.616. The address is 1215 San Francisco, San Antonio, TX 78201 and the phone number is (210) 735-9235. It appears as a general contractor with a public website. The raw score lies 0.264 below the national mean; 38 reviews limit the upward movement to 0.116 points. The rating supplies no detail on how the firm performs in extreme summer humidity or on older homes with duct issues.

San Antonio HVAC

San Antonio HVAC holds 33 reviews at a raw 4.5 adjusted to 4.626. Its address is 5413 Bandera Rd #403, San Antonio, TX 78238 and the phone is (726) 238-2584. It lists under Services without a public website or 24/7 availability. The raw rating sits 0.264 below the national mean; the review count produces a 0.138-point upward adjustment. The numbers say nothing about parts sourcing speed or how the company handles warranty service after the initial install.

Cost

Installed-cost data for Bexar County shows a modeled typical full-system price of $9,000 within a range of $8,100 to $9,900. The 2025 invoiced average reached $13,050 while the upper quartile hit $21,118. Labor is published at $100 per hour and permit fees run $100-400. The two sources therefore differ, with the invoiced average roughly 45 percent above the modeled typical figure. Both sources carry the explicit caveat that they reflect different data-collection methods. Homeowners should request itemized quotes that separate equipment, labor, and permit costs rather than relying on either published benchmark alone.

Climate

Bexar County falls primarily in IECC zones 2A and 3A with a moist regime in the east and drier conditions westward. Heating degree days total 1,700 while cooling degree days reach 2,900, confirming a strongly cooling-dominant load profile. Design temperatures are 32 °F in winter and 96 °F in summer. Humidity is extreme along the Gulf Coast influence yet drier farther west. Central air conditioning saturation is near-universal and the peak service season is summer. Winter Storm Uri revealed heating-capacity gaps that some systems still carry. Equipment must therefore be sized for high latent loads in summer and occasional deep cold snaps in winter; oversizing remains a common risk when contractors ignore local Manual J calculations.

Licensing and permits

HVAC work in Texas is licensed at the state level by the Texas Department of Licensing and Regulation through its Air Conditioning and Refrigeration Contractors Program. Two license classes exist: Class A covers any size unit while Class B is limited to cooling systems 25 tons and under and heating systems 1.5 million BTU per hour and under, each with possible endorsements. Class A requires $300,000 per occurrence and $600,000 aggregate liability insurance; Class B requires half those amounts. The state does not mandate insurance beyond those minimums. Permits for furnace or AC changeouts are issued by the local city or county building department, not the state. Some municipalities add their own supplemental HVAC registration on top of the TDLR license. Homeowners can verify any contractor at the public lookup before work begins.

Incentives

Texas Home Energy Rebates remain conditionally approved with a planned 2026 launch and a maximum heat-pump rebate of $8,000. No state income tax exists, so no state HVAC tax credit is available. Utility programs through CPS Energy and others offer $200-$1,800 rebates, yet every utility rebate requires a registered participating contractor. Federal 25C and 25D credits expired at the end of 2025; only the commercial 48E ITC survives for third-party-owned systems. The largest federal allocation in the country has been among the slowest to reach homeowners. These rules mean the installer chosen must already participate in the local utility network if any rebate is to be captured.

Homeowners facing a four-to-twelve-thousand-dollar decision should obtain multiple itemized bids, confirm TDLR license class on the state lookup, and verify which utility rebate network the contractor belongs to before signing.