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Sentinel Heating & CoolingHVAC contractor in Oshawa, ON

Sentinel Heating & Cooling is an HVAC contractor at 62 Cromwell Ave, Oshawa, ON L1J 4T6, ranked #27 of 274 HVAC contractors in Oshawa and rated 5.0 from 68 Google reviews. Open 7 days a week.

Oshawa, ONUpdated 0 paid placements in any rankingHow we rank

Call (647) 448-2544Website ↗

Key facts

Key facts about Sentinel Heating & Cooling
Address62 Cromwell Ave, Oshawa, ON L1J 4T6Get directions
Phone(647) 448-2544
Websitesentinelheating.ca
HoursMonday to Friday: 8 AM – 9 PM; Saturday and Sunday: 8 AM – 5 PM
Google rating5.0 from 68 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Oshawa and 5 towns within 40 km: Ajax, Pickering, Uxbridge, Markham and Scarborough.

Based in Oshawa, ONView on map

Opening hours

Opening hours for Sentinel Heating & Cooling
DayHours
Monday8 AM – 9 PMevening
Tuesday8 AM – 9 PMevening
Wednesday8 AM – 9 PMevening
Thursday8 AM – 9 PMevening
Friday8 AM – 9 PMevening
Saturday8 AM – 5 PM
Sunday8 AM – 5 PM
  • 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 converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)CA$5,460CA$8,400CA$11,350
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)CA$3,970CA$6,770CA$9,690

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Sentinel Heating & Cooling compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Sentinel Heating & Cooling (this business)—595.0 (68)—YesYes
BlueGuard Duct Cleaning#25594.9 (97)—YesYes4.6 km
Boyle Energy Solutions#26595.0 (25)—YesYes2.2 km

See all 274 ranked HVAC contractors in Oshawa

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 68 Google reviews

Hired Sentinel Heating & Cooling? Write a review

Questions about Sentinel Heating & Cooling

How is Sentinel Heating & Cooling ranked in Oshawa?

Sentinel Heating & Cooling is ranked #27 of 274 HVAC contractors in Oshawa 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 Sentinel Heating & Cooling’s hours?

Sentinel Heating & Cooling is open 7 days a week. Its listed hours are Monday to Friday, 8 AM – 9 PM; Saturday and Sunday, 8 AM – 5 PM. On Saturdays it is open 8 AM to 5 PM, and on Sundays 8 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

What areas does Sentinel Heating & Cooling serve?

Serves Oshawa and 5 towns within 40 km: Ajax, Pickering, Uxbridge, Markham and Scarborough. 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 Sentinel Heating & Cooling?

Sentinel Heating & Cooling has a rating of 5.0 from 68 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 Sentinel Heating & Cooling?

Call Sentinel Heating & Cooling on (647) 448-2544. The business is at 62 Cromwell Ave, Oshawa, ON L1J 4T6. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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