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Dupont Air Conditioning & Heating Service, LLCHVAC contractor in Mandeville, LA

Dupont Air Conditioning & Heating Service, LLC is an HVAC contractor at 21449 Marion Ln Suite 5, Mandeville, LA 70471, ranked #4 of 178 HVAC contractors in Mandeville and rated 4.9 from 308 Google reviews. Open 24 hours a day, 7 days a week.

Mandeville, LAUpdated 0 paid placements in any rankingHow we rank

Call (985) 323-5123Website ↗

Key facts

Key facts about Dupont Air Conditioning & Heating Service, LLC
Address21449 Marion Ln Suite 5, Mandeville, LA 70471Get directions
Phone(985) 323-5123
Websitedupontac.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 308 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Mandeville and 5 towns within 25 miles: Covington, Lacombe, Slidell, Eden Isle and Ponchatoula.

Based in Mandeville, LAView on map

Opening hours

Opening hours for Dupont Air Conditioning & Heating Service, LLC
DayHours
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
  • Open 24/7
  • Open evenings — no
  • Open Saturdays
  • Open Sundays
  • Emergency service

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

Dupont Air Conditioning & Heating Service, LLC compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Dupont Air Conditioning & Heating Service, LLC (this business)—654.9 (308)—YesYes
Airsmiths Cooling & Heating#2665.0 (440)—YesYes0.8 mi
AccuTemp Services#3654.9 (745)—YesYes2.8 mi
Professional Heating & Air#5644.9 (239)—YesYes3.2 mi

See all 178 ranked HVAC contractors in Mandeville

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 308 Google reviews

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Questions about Dupont Air Conditioning & Heating Service, LLC

How is Dupont Air Conditioning & Heating Service, LLC ranked in Mandeville?

Dupont Air Conditioning & Heating Service, LLC is ranked #4 of 178 HVAC contractors in Mandeville by CR Score, with 65 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 Dupont Air Conditioning & Heating Service, LLC’s hours?

Dupont Air Conditioning & Heating Service, LLC is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

What areas does Dupont Air Conditioning & Heating Service, LLC serve?

Serves Mandeville and 5 towns within 25 miles: Covington, Lacombe, Slidell, Eden Isle and Ponchatoula. 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 Dupont Air Conditioning & Heating Service, LLC?

Dupont Air Conditioning & Heating Service, LLC has a rating of 4.9 from 308 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 Dupont Air Conditioning & Heating Service, LLC?

Call Dupont Air Conditioning & Heating Service, LLC on (985) 323-5123. The business is at 21449 Marion Ln Suite 5, Mandeville, LA 70471. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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