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Heating & Air Conditioning

We're Toronto's leading team of certified heating & air conditioning specialists & are well equipped to diagnose and resolve your heating & air conditioning issues.  

Our technicians are fully trained, certified and backed by the technology needed to take on your biggest heating & air conditioning projects.  

SIMMCO can assist you with all of your heating system needs:

  • Poor air quality 

  • Inconsistent heating throughout the residence or business

  • System failure 

  • Bad smells from heating system (gas)

  • Installation of energy star products 

  • Restoration, maintenance, inspections

And we can assist you with all of your air conditioning system needs: 

  • Moisture or leaking 

  • Poor air quality 

  • Poor air flow 

  • System failure 

  • Inconsistent cooling 

  • Installation of energy star products 

  • Restoration, maintenance, inspections

Service Areas: 

  • Toronto 

  • Etobicoke

  • Scarborough 

  • Mississauga

  • Milton 

  • Oakville 

  • Burlington 

  • Hamilton 

  • Brantford 

  • St. Catherines 

  • Niagara Falls 

  • Markham 

  • Stouffville

  • Uxbridge

  • Peterborough

  • Pickering 

  • Whitby 

  • Oshawa 

  • Ajax 

  • Clarington 

  • Richmond Hill

  • Aurora 

  • Newmarket 

  • Barrie 

  • Orillia

  • And More...


We're equipped for any job small or large, anytime of the day or night.  

NADCA Certified Member.  Click HERE to view verification. 

Available 24 hours a day, 7 days a week, 365 days a year.

We're Indoor Air Quality Experts

  • Indoor Air Quality (IAQ) has become an important health and safety concern for Canadians.  The most common issue associated with IAQ is improper or inadequately maintained heating & ventilation systems.

  • Issues that lead to poor IAQ can include inadequate temperatures, humidity, poor air circulation, ventilation issues, insufficient outdoor air intakes & indoor air contaminants such as chemicals, dust, moulds or fungi, bacteria, odours & vapours.

  • Poor IAQ can lead to various symptoms such as: dryness & irritation of the eyes, nose throat & skin, headaches, fatigue, shortness of breath, hypersensitivity, allergies, sinus congestion, coughing and sneezing, dizziness and nausea.  

Do you think that your Indoor Air Quality needs attention?

IAQ Inspection Checklist 
Workplace Health Survey
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