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Advantage H&AHVAC contractor in O'Fallon, MO

Advantage H&A is an HVAC contractor in O'Fallon, MO, rated 5.0 from 5 Google reviews. Open 7 days a week.

O'Fallon, MO0 paid placements in any rankingHow we rank

Call (314) 584-9539Website ↗

Key facts

Key facts about Advantage H&A
Phone(314) 584-9539
Websiteadvantagehvacllc.com
HoursMonday to Sunday: 8 AM – 8 PM
Google rating5.0 from 5 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves O'Fallon and 11 towns within 25 miles: Lake Saint Louis, Wentzville, Dardenne Prairie, Saint Peters, Troy, Weldon Spring, Saint Charles, Chesterfield, Warrenton, Wildwood and Bridgeton.

Based in O'Fallon, MOView on map

Opening hours

Opening hours for Advantage H&A
DayHours
Monday8 AM – 8 PMevening
Tuesday8 AM – 8 PMevening
Wednesday8 AM – 8 PMevening
Thursday8 AM – 8 PMevening
Friday8 AM – 8 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.

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 5 Google reviews

Hired Advantage H&A? Write a review

Questions about Advantage H&A

What are Advantage H&A’s hours?

Advantage H&A is open 7 days a week. Its listed hours are Monday to 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 Advantage H&A serve?

Serves O'Fallon and 11 towns within 25 miles: Lake Saint Louis, Wentzville, Dardenne Prairie, Saint Peters, Troy, Weldon Spring, Saint Charles, Chesterfield, Warrenton, Wildwood and Bridgeton. 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 Advantage H&A?

Advantage H&A has a rating of 5.0 from 5 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 Advantage H&A?

Call Advantage H&A on (314) 584-9539. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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