5 HVAC Repair Contractors in St. Catharines, NY
4.5 avg rating
·3,499 total reviews·3 offer 24/7 serviceTop-Rated HVAC Repair Contractors in St. Catharines
#1
Mr. Furnace Heating and Air Conditioning
4.8(2,827 reviews)
24/7 Highly Rated
“With 2,827 reviews averaging 4.8 stars, customers frequently mention same-day emergency service. Positive reviews cite technician skill and clear explanations,…”
28 Dunkirk Rd, St. Catharines, ON L2R 1A1, Canada
#2
MacKay Heating & Cooling
4.8(399 reviews)
24/7 Highly Rated
“All five sampled reviewers awarded 5 stars, with technicians named in multiple reviews: Tyler (same-day quote), Chris and Zack (next-day installation), Ryan…”
2517 First Street Louth, St. Catharines, ON L2R 6P7, Canada
All HVAC Repair Contractors (5 total)
Boyko's Heating and Air Conditioning
4.8(59)
“Fifty-nine reviews averaging 4.8 stars show strong customer satisfaction. Twelve reviewers specifically…”
15 Kilbourne Crescent, St. Catharines, ON L2M 3E3, Canada
HVAC Repair Costs in St. Catharines
Typical heating and cooling repair costs in St. Catharines, by component.
| Service | Low | Average | High |
|---|---|---|---|
Diagnostic / service call | $83 | $132 | $220 |
Thermostat replacement | $165 | $303 | $550 |
Blower motor replacement | $440 | $715 | $1,210 |
Heat exchanger replacement | $1,650 | $2,420 | $3,850 |
Ignitor replacement (gas furnace) | $165 | $275 | $440 |
Control board replacement | $330 | $605 | $990 |
Full system repair (major) Multi-component failure | $550 | $1,320 | $3,300 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
Frequently Asked Questions
HVAC repairs in St. Catharines range from $83-$3,850 depending on the component. Thermostat replacement runs $150-$500, blower motor $400-$1,100, ignitor $150-$400, and heat exchanger replacement $1,500-$3,500. Diagnostic fees of $75-$200 are typically credited toward the repair if you proceed.