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Diamond AirHVAC contractor in Seguin, TX

Diamond Air is an HVAC contractor at 226 Sunbelt Loop W, Seguin, TX 78155, ranked #13 of 170 HVAC contractors in Seguin and rated 4.9 from 307 Google reviews. Open Monday to Saturday.

Seguin, TXUpdated 0 paid placements in any rankingHow we rank

Call (830) 303-9397Website ↗

Key facts

Key facts about Diamond Air
Address226 Sunbelt Loop W, Seguin, TX 78155Get directions
Phone(830) 303-9397
Websiteacrepairseguin.com
HoursMonday to Friday: 8 AM – 5 PM; Saturday: 8 AM – 3 PM
Google rating4.9 from 307 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Seguin and 9 towns within 25 miles: New Braunfels, Luling, Cibolo, San Marcos, Schertz, Universal City, Selma, Converse and Live Oak.

Based in Seguin, TXView on map

Opening hours

Opening hours for Diamond Air
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 PM
Saturday8 AM – 3 PM
SundayClosed
  • Open evenings — no
  • Open Saturdays
  • Open Sundays — no

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

Diamond Air compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Diamond Air (this business)—604.9 (307)—YesNo
Centeno Air LLC#11605.0 (118)—YesYes8.9 mi
Lonestar Air Services#12605.0 (180)—YesYes6.4 mi
7K Mechanical Heating and Air Conditioning#14595.0 (247)—YesYes17.7 mi

See all 170 ranked HVAC contractors in Seguin

Reviews

ContractorsRanked reviews

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Google

4.9from 307 Google reviews

Hired Diamond Air? Write a review

Questions about Diamond Air

How is Diamond Air ranked in Seguin?

Diamond Air is ranked #13 of 170 HVAC contractors in Seguin 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 Diamond Air’s hours?

Diamond Air is open Monday to Saturday. Its listed hours are Monday to Friday, 8 AM – 5 PM; Saturday, 8 AM – 3 PM. On Saturdays it is open 8 AM to 3 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Diamond Air serve?

Serves Seguin and 9 towns within 25 miles: New Braunfels, Luling, Cibolo, San Marcos, Schertz, Universal City, Selma, Converse and Live Oak. 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 Diamond Air?

Diamond Air has a rating of 4.9 from 307 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 Diamond Air?

Call Diamond Air on (830) 303-9397. The business is at 226 Sunbelt Loop W, Seguin, TX 78155. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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