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ContractorsRanked

ILLY HVACHVAC contractor in Saint Peters, MO

ILLY HVAC is an HVAC contractor in Saint Peters, MO, rated 5.0 from 154 Google reviews. Open Monday to Friday.

Saint Peters, MO0 paid placements in any rankingHow we rank

Call (314) 808-2162Website ↗

Key facts

Key facts about ILLY HVAC
Phone(314) 808-2162
Websiteillyhvac.com
HoursMonday to Friday: 8 AM – 5 PM
Google rating5.0 from 154 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

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

Based in Saint Peters, MOView on map

Opening hours

Opening hours for ILLY HVAC
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 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.

Reviews

ContractorsRanked reviews

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Google

5.0from 154 Google reviews

Hired ILLY HVAC? Write a review

Questions about ILLY HVAC

What are ILLY HVAC’s hours?

ILLY HVAC is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does ILLY HVAC serve?

Serves Saint Peters and 11 towns within 25 miles: Lake Saint Louis, Dardenne Prairie, Wentzville, O'Fallon, Weldon Spring, Chesterfield, Troy, Saint Charles, Wildwood, Ellisville and Ballwin. 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 ILLY HVAC?

ILLY HVAC has a rating of 5.0 from 154 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 ILLY HVAC?

Call ILLY HVAC on (314) 808-2162. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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