10+ Years · San Marcos
Experienced HVAC Companies in San Marcos, TX
Experience matters. These hvac companies in San Marcos have years of proven work behind them — and the reviews to back it up.
As of June 2026, RatingsNearMe ranks 16 hvac companies in San Marcos, TX by the RNM Score — a 0–100 rating built from Google ratings, review volume, sentiment, and profile completeness. The top-ranked is Legacy Home Services with a 5.0-star rating from 2,733 Google reviews and an RNM Score of 100/100. Also in the top tier: SM Air A/C & Heating and Joe Cools A/C & Heating. The average rating across all listed hvac companies in San Marcos is 4.9 stars from 331 reviews per business on average.
HVAC service in San Marcos: $75–$150/hr for repairs; full system replacement $4,000–$12,000 depending on size and efficiency.
Rankings updated June 10, 2026 · RNM Score = ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · Not paid placement.
Best Overall
Reliable Air
Reliable Air stands out as the top-ranked HVAC in San Marcos due to its consistent high ratings and strong reputation for dependable service.
Most Reviewed
Reliable Air
A high number of reviews indicates broad customer trust and experience, helping you gauge service reliability before hiring.
When choosing an HVAC in San Marcos, prioritize companies with strong local reputations and verified customer feedback. Always request a written estimate and confirm licensing and insurance before work begins.
Local Market Snapshot
16
Businesses listed
4.9★
Avg rating
331
Avg reviews
Jun 10, 2026
Last updated
Top Rated HVAC Companies
San Marcos HVAC with perfect 5.0 rating from 2,733 reviews.
2001 Wald Rd, New Braunfels, TX 78132, USASan Marcos HVAC with a perfect 5.0-star rating from over 700 Google reviews.
3500 TX-123, San Marcos, TX 78666, USATrusted by hundreds of locals with a near-perfect 4.9-star rating.
527 E Kingsbury St, Seguin, TX 78155, USAHVAC Companies Rankings in San Marcos, TX
| # | Business | Rating | Reviews |
|---|---|---|---|
| #1 | Legacy Home Services2001 Wald Rd, New Braunfels, TX 78132, USA | 5.0★ | 2,733 |
| #2 | SM Air A/C & Heating3500 TX-123, San Marcos, TX 78666, USA | 5.0★ | 713 |
| #3 | Joe Cools A/C & Heating527 E Kingsbury St, Seguin, TX 78155, USA | 4.9★ | 390 |
| #4 | San Marcos HVAC Experts621 Clyde Ct, San Marcos, TX 78666, USA | 4.9★ | 28 |
| #5 | Quality HVAC & Refrigeration105 Picasso Dr, San Marcos, TX 78666, USA | 4.8★ | 276 |
| #6 | AirOne Heating and Air Conditioning4105 Hunter Rd Building 8, Ste 11, San Marcos, TX 78666, USA | 4.9★ | 371 |
| #7 | American Air Heating and Air Conditioning415 N Guadalupe St, San Marcos, TX 78666, USA | 5.0★ | 88 |
| #8 | Comfy Air AC and Furnace Repair340 E Torrey St Suite 101, New Braunfels, TX 78130, USA | 4.9★ | 221 |
| #9 | Marvin's Heating & Air Conditioning102 Manor Park Rd, San Marcos, TX 78666, USA | 4.8★ | 25 |
| #10 | Fast AC & Heating111 Old Main Dr, San Marcos, TX 78666, USA | 5.0★ | 12 |
Ranked by verified ratings & review volume · Data from Google Business listings · Updated June 2026
All HVAC Companies in San Marcos
Highly-rated San Marcos HVAC contractor with a 4.9-star average from 28 reviews.
621 Clyde Ct, San Marcos, TX 78666, USA
Trusted by hundreds of locals with an exceptional 4.8-star rating.
105 Picasso Dr, San Marcos, TX 78666, USA
4.9-star rating from 371 Google reviews for HVAC service in San Marcos.
4105 Hunter Rd Building 8, Ste 11, San Marcos, TX 78666, USA
88 Google reviews with a perfect 5.0-star rating for HVAC in San Marcos.
415 N Guadalupe St, San Marcos, TX 78666, USA
Trusted by hundreds of local customers with a 4.9-star rating.
340 E Torrey St Suite 101, New Braunfels, TX 78130, USA
4.8 stars from 25 reviews, reflecting exceptional local HVAC service in San Marcos.
102 Manor Park Rd, San Marcos, TX 78666, USA
Exceptional 5.0-star rating from 12 Google reviews in San Marcos, TX.
111 Old Main Dr, San Marcos, TX 78666, USA
4.8 stars from 91 reviews, reflecting exceptional customer satisfaction in San Marcos.
105 United Dr, San Marcos, TX 78666, USA
4 Google reviews give this San Marcos HVAC company a perfect 5.0-star rating.
204 N LBJ Dr, San Marcos, TX 78666, USA
Trusted by hundreds of local customers with a near-perfect 4.9-star rating.
4702 TX-123 Suite C, San Marcos, TX 78666, USA
Trusted by hundreds of local customers with a near-perfect 4.9-star rating.
3519 TX-21, San Marcos, TX 78666, USA
San Marcos HVAC with a perfect 5.0 star rating from 84 reviews.
215 Calixto Ct, San Marcos, TX 78666, USA
Consistently rated 5.0 stars from 11 reviews in San Marcos.
824 Picasso Dr, San Marcos, TX 78666, USA
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HVAC Companies in San Marcos, TX — Compared
| # | Business | RNM Score | Rating | Reviews |
|---|---|---|---|---|
| 1 | Legacy Home Services | 100/100 | 5.0 ★ | 2,733 |
| 2 | SM Air A/C & Heating | 100/100 | 5.0 ★ | 713 |
| 3 | Joe Cools A/C & Heating | 98/100 | 4.9 ★ | 390 |
| 4 | San Marcos HVAC Experts | 75/100 | 4.9 ★ | 28 |
| 5 | Quality HVAC & Refrigeration | 97/100 | 4.8 ★ | 276 |
| 6 | AirOne Heating and Air Conditioning | 98/100 | 4.9 ★ | 371 |
| 7 | American Air Heating and Air Conditioning | 94/100 | 5.0 ★ | 88 |
| 8 | Comfy Air AC and Furnace Repair | 89/100 | 4.9 ★ | 221 |
| 9 | Marvin's Heating & Air Conditioning | 84/100 | 4.8 ★ | 25 |
| 10 | Fast AC & Heating | 84/100 | 5.0 ★ | 12 |
Ranked by RatingsNearMe Score · ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · June 2026
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Frequently Asked Questions — HVAC Companies in San Marcos
How do I find the best hvac companies in San Marcos?
Look for businesses with 4.5+ stars, 50+ verified reviews, proper licensing and insurance, and transparent pricing. The top-ranked hvac companies in San Marcos on this page are scored by our algorithm that weighs ratings, review count, and profile completeness.
Are hvac companies in San Marcos licensed and insured?
Licensing requirements vary by trade and state. For most home service contractors, TX requires both a state license and liability insurance. Always ask any contractor for proof of current insurance and a copy of their license number before work begins — you can verify most licenses on your state licensing board's website.
How much do hvac companies charge in San Marcos, TX?
Prices vary by scope, materials, and contractor experience. Use the free quote form on this page to request estimates from multiple local pros simultaneously. Getting 3+ quotes is the single most effective way to avoid overpaying.
What should I look for when hiring a hvac companies in San Marcos?
Verify licensing and insurance, read recent reviews on multiple platforms, ask for a written estimate before work starts, confirm they pull permits when required, and check references from recent local projects. Featured businesses on this page are ranked by verified ratings and review quality.
How are the hvac companies on this page ranked?
Rankings use a transparent algorithm: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Featured Partner listings have paid for enhanced visibility but must still earn their position through real customer reviews — sponsored listings are clearly labeled.
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How Rankings Work on This Page
Every hvac companies on RatingsNearMe is scored transparently: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Businesses labeled exclusive or premium are Featured Partners — they have paid for enhanced visibility but must still rank through real customer reviews. We cap sponsored boosts so bad businesses can never buy the top spot.
Editorial notice: Ratings are based on publicly available data from Google Business listings. Consumers should independently verify licensing, insurance, and credentials before hiring any service provider. Last updated: June 10, 2026.
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