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Cool Knight ACHVAC contractor in San Marcos, TX

Cool Knight AC is an HVAC contractor at 3700 TX-123 Suite A, San Marcos, TX 78666, ranked #23 of 203 HVAC contractors in San Marcos and rated 5.0 from 28 Google reviews. Open 7 days a week.

San Marcos, TXUpdated 0 paid placements in any rankingHow we rank

Call (737) 296-0105Website ↗

Key facts

Key facts about Cool Knight AC
Address3700 TX-123 Suite A, San Marcos, TX 78666Get directions
Phone(737) 296-0105
Websitecoolknightac.com
HoursMonday to Friday: 6 AM – 10 PM; Saturday and Sunday: 8 AM – 8 PM
Google rating5.0 from 28 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves San Marcos and 9 towns within 25 miles: Kyle, New Braunfels, Lockhart, Seguin, Buda, Canyon Lake, Luling, Shady Hollow and Cibolo.

Based in San Marcos, TXView on map

Opening hours

Opening hours for Cool Knight AC
DayHours
Monday6 AM – 10 PMevening
Tuesday6 AM – 10 PMevening
Wednesday6 AM – 10 PMevening
Thursday6 AM – 10 PMevening
Friday6 AM – 10 PMevening
Saturday8 AM – 8 PMevening
Sunday8 AM – 8 PMevening
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Cool Knight AC compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Cool Knight AC (this business)—605.0 (28)—YesYes
Garrett’s Plumbing#21605.0 (16)—YesYes6.6 mi
ProCure Heating & Air#22604.9 (111)—YesYes17.5 mi
APEX Electrical, A/C & Heating LLC#24604.9 (94)—YesYes10.3 mi

See all 203 ranked HVAC contractors in San Marcos

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 28 Google reviews

Hired Cool Knight AC? Write a review

Questions about Cool Knight AC

How is Cool Knight AC ranked in San Marcos?

Cool Knight AC is ranked #23 of 203 HVAC contractors in San Marcos by CR Score, with 60 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Cool Knight AC’s hours?

Cool Knight AC is open 7 days a week. Its listed hours are Monday to Friday, 6 AM – 10 PM; Saturday and Sunday, 8 AM – 8 PM. On Saturdays it is open 8 AM to 8 PM, and on Sundays 8 AM to 8 PM. Hours come from the business listing; holiday hours may differ.

What areas does Cool Knight AC serve?

Serves San Marcos and 9 towns within 25 miles: Kyle, New Braunfels, Lockhart, Seguin, Buda, Canyon Lake, Luling, Shady Hollow and Cibolo. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Cool Knight AC?

Cool Knight AC has a rating of 5.0 from 28 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Cool Knight AC?

Call Cool Knight AC on (737) 296-0105. The business is at 3700 TX-123 Suite A, San Marcos, TX 78666. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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