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Coster Heating & Air Conditioning, IncHVAC contractor in Seneca, SC

Coster Heating & Air Conditioning, Inc is an HVAC contractor at 402 E Railroad St, Seneca, SC 29678, ranked #12 of 67 HVAC contractors in Seneca and rated 5.0 from 137 Google reviews. Open Monday to Friday.

Seneca, SCUpdated 0 paid placements in any rankingHow we rank

Call (864) 882-4905Website ↗

Key facts

Key facts about Coster Heating & Air Conditioning, Inc
Address402 E Railroad St, Seneca, SC 29678Get directions
Phone(864) 882-4905
Websitecosterheatingair.com
HoursMonday to Friday: 8 AM – 4 PM
Google rating5.0 from 137 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Seneca and 6 towns within 25 miles: Clemson, Central, Centerville, Anderson, Homeland Park and Easley.

Based in Seneca, SCView on map

Opening hours

Opening hours for Coster Heating & Air Conditioning, Inc
DayHours
Monday8 AM – 4 PM
Tuesday8 AM – 4 PM
Wednesday8 AM – 4 PM
Thursday8 AM – 4 PM
Friday8 AM – 4 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • 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

Coster Heating & Air Conditioning, Inc compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Coster Heating & Air Conditioning, Inc (this business)—595.0 (137)—NoNo
Nano Environmental Solutions Commercial Division#10604.7 (27)—YesYes3.6 mi
Ace Plumbing, Electric, Heating & Air#11594.9 (646)—YesNo20.4 mi
Gerald HVAC LLC#13595.0 (17)—YesYes17.8 mi

See all 67 ranked HVAC contractors in Seneca

Reviews

ContractorsRanked reviews

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Google

5.0from 137 Google reviews

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Questions about Coster Heating & Air Conditioning, Inc

How is Coster Heating & Air Conditioning, Inc ranked in Seneca?

Coster Heating & Air Conditioning, Inc is ranked #12 of 67 HVAC contractors in Seneca by CR Score, with 59 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 Coster Heating & Air Conditioning, Inc’s hours?

Coster Heating & Air Conditioning, Inc is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 4 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Coster Heating & Air Conditioning, Inc serve?

Serves Seneca and 6 towns within 25 miles: Clemson, Central, Centerville, Anderson, Homeland Park and Easley. 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 Coster Heating & Air Conditioning, Inc?

Coster Heating & Air Conditioning, Inc has a rating of 5.0 from 137 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 Coster Heating & Air Conditioning, Inc?

Call Coster Heating & Air Conditioning, Inc on (864) 882-4905. The business is at 402 E Railroad St, Seneca, SC 29678. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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