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Sentinel Heating & Cooling

HVAC in Oshawa

5.0(71 reviews)
62 Cromwell Ave, Oshawa, ON L1J 4T6

Marketing Gap Analysis

37/100

Some room for improvement. A focused campaign could accelerate growth.

  • 71 reviews (+2)
  • Has website (+3)
  • Tier 4 city (+5)
  • High-value trade (+20)
  • Phone only (+7)

6 HVAC Businesses in Oshawa Are Ahead of You

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HVAC Cost Guide — Oshawa (2026)

Typical price ranges for hvac work in Oshawa. Get at least 3 quotes to compare.

Furnace Replacementinstalled
$3,500$5,500$8,000
Ac Installationinstalled
$3,000$4,500$7,000
Ductworkfull system
$2,000$4,000$8,000
Annual Maintenanceper visit
$100$175$250

Prices in CAD. Based on typical Ontario contractor quotes, 2026. Actual costs vary by scope, materials, and access.

HVAC Licensing in Ontario

Required Licence

TSSA Gas Technician Certificate (G1, G2, G3)

Verify a Contractor

Gas work requires TSSA certification. Refrigeration requires ODP certification.

Red Flags to Watch For

  • No TSSA number
  • Won't pull permits
  • Cash-only deals
  • No WSIB clearance

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Limcan Certified Heating and Air Conditioning

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