18 AC Installation Contractors in San Marcos, TX

4.6 avg rating
4,835 total reviews3 offer 24/7 service
Need emergency service? 6 HVAC providers in San Marcos offer 24/7 availability

Top-Rated AC Installation Contractors in San Marcos

#1

Woods Comfort Systems

4.9(2,788 reviews)
Highly Rated

All six reviewers grant 5-star ratings, with technicians Virgle and Miguel named across multiple reviews for their diagnostic explanations and same-day service…

1902 Dutton Dr, San Marcos, TX 78666
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#2

SM Air A/C & Heating

5.0(748 reviews)
Highly Rated

718 reviews yield a perfect 5-star average, with every positive review praising specific technicians by name: Jared, Curtis, David, and Jordan. Homeowners…

3500 TX-123, San Marcos, TX 78666
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#3

AirOne Heating and Air Conditioning

4.9(378 reviews)
24/7 Highly Rated

All 375 reviews award 4 or 5 stars, with many explicitly noting same-day arrival during stressful situations. Multiple reviewers mention specific technicians…

4105 Hunter Rd Building 8, Ste 11, San Marcos, TX 78666
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All AC Installation Contractors (18 total)

Quality HVAC & Refrigeration

4.8(283)
Highly Rated

Of five named reviewers, four received same-day or next-day appointments. Three specifically mentioned…

105 Picasso Dr, San Marcos, TX 78666
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Reliable Air

4.9(136)
Highly Rated

All five-star reviewers mention specific technicians by name, with Alex appearing in multiple reviews for…

4702 TX-123 Suite C, San Marcos, TX 78666
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So Cool Service, LLC

4.9(111)
24/7 Highly Rated

Eight recent reviews universally award 5-star ratings, with Jesus and Diego named in every detailed account…

3519 TX-21, San Marcos, TX 78666
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American Air Heating and Air Conditioning

5.0(92)

89 reviewers all award 5 stars, with repeated praise for same-day response times and honest diagnostics.…

415 N Guadalupe St, San Marcos, TX 78666
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PerfectTemp Heating & Air Conditioning

4.9(100)
24/7 Highly Rated

96 reviews averaging 4.8 stars show strong customer satisfaction, with every detailed review awarding 5 stars…

105 United Dr, San Marcos, TX 78666
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Cool Knight AC

5.0(30)

All 29 reviews award 5 stars, with three clients specifically citing same-day emergency response and multiple…

3700 TX-123 Suite A, San Marcos, TX 78666
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Competition A/C & Heat, LLC

4.5(43)

4 of 5 displayed reviewers mention same-day or expedited service, with Rhonda and Andrew specifically…

115 Barton Rd, San Marcos, TX 78666
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Century HVAC Distributing

4.8(31)

7 of 8 reviewers award 5 stars, with customers specifically praising staff members Robert, Chris, and Cameron…

1551 Clovis Barker Rd Ste. 201, San Marcos, TX 78666
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Marvin's Heating & Air Conditioning

4.8(25)

1 of 25 reviews describes same-day arrival during an August heat wave with rapid part replacement. Negative…

102 Manor Park Rd, San Marcos, TX 78666
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Q Service Heating & Air Conditioning

4.8(24)

Seven of eight reviews award 5 stars, with praise for same-day emergency response, honest diagnostics, and no…

1122 TX-123, San Marcos, TX 78666
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Rio Vista Air LLC

5.0(13)

All seven indexed reviews award five stars, with four clients specifically naming technician Mike for his…

824 Picasso Dr, San Marcos, TX 78666
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Bishop Mechanical

5.0(11)

Seven reviewers collectively award five stars, with five specifically mentioning Richard by name. Four…

2541 Deer Stand Loop, San Marcos, TX 78666

Solar Supply

4.7(12)

Four of 8 reviewers specifically mention staff by name, with Nick and Kelley cited for product knowledge and…

323 S Guadalupe St, San Marcos, TX 78666
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Jam A C

5.0(10)

All seven published reviews carry 5-star ratings, with four reviewers explicitly mentioning timeliness,…

1003 S Loop St, San Marcos, TX 78666
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Fricold Cooling & Heating, LLC.

0.0
4530 S I-35 South Frontage Rd, San Marcos, TX 78666
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AC Installation Costs in San Marcos

New central AC installation costs in San Marcos, by system type and brand.

ServiceLowAverageHigh
Window unit
$150$350$700
Ductless mini-split (single zone)
$2,000$4,500$8,000
Central AC replacement (existing ducts)
$3,500$6,500$12,000
Central AC new install (with ductwork)
$7,000$12,000$20,000
Carrier (residential)
$3,800$6,200$10,500
Trane (residential)
$5,000$8,800$13,600
Lennox (residential)
$3,500$6,500$12,000
Rheem (residential)
$3,200$5,500$9,000

Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Installation in San Marcos, TX: What to Expect

San Marcos shares Austin's climate challenges, with the city seeing 30 days above 100 F each summer and 111 days exceeding 90 F amid persistent humidity. This heat profile makes reliable AC Installation in San Marcos essential for homeowner comfort, not a luxury. Eighteen licensed contractors serve the metro area, collectively earning an average 4.6-star rating from over 4,700 homeowner reviews.

Pricing reflects system complexity. Window units run $150 to $700, while ductless mini-split systems for single zones cost $2,000 to $8,000. Replacing central AC with existing ductwork ranges from $3,500 to $12,000, a significant investment that directly correlates to cooling capacity and home layout. Texas requires contractors to hold either a Class A unlimited or Class B limited license from the Texas Department of Licensing and Regulation, validating their experience before handling installations.

Homeowners consistently praise specific technicians across local companies. SM Air A/C & Heating achieves a perfect 5-star average from 718 reviews, with reviewers naming Jared, Curtis, David, and Jordan for their honest assessments and transparent communication. Woods Comfort Systems maintains all five-star ratings, with technicians Virgle and Miguel noted for clear diagnostic explanations and same-day service reliability. These firsthand accounts indicate that technical skill and customer communication remain the primary differentiation factors among San Marcos-area contractors.

Frequently Asked Questions

New AC installation in San Marcos costs $150-$20,000 depending on system type. Window units run $150-$700, ductless mini-splits $2,000-$8,000 per zone, central AC replacement with existing ducts $3,500-$12,000, and full new installs with ductwork $7,000-$20,000. SEER rating, tonnage, and brand significantly affect pricing.

All HVAC Contractors in San Marcos, TX

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