When commercial exhaust systems remove air from a building (kitchen hoods, industrial ventilation), that air must be replaced. Without make-up air:
Doors become hard to open (negative pressure)
Exhaust systems work inefficiently
Drafts and comfort issues occur
Energy costs increase
Code violations may result
Make-up air units bring in fresh outdoor air, condition it (heat or cool), and deliver it to the space — maintaining balanced pressure and comfort.
Make-Up Air Installation
We design and install make-up air systems for commercial kitchens, restaurants, industrial facilities, and other high-exhaust environments.
Make-Up Air Repair
System not keeping up? Temperature issues? We diagnose and repair make-up air units to restore proper operation.
Make-Up Air Maintenance
Regular maintenance ensures efficient operation and prevents costly breakdowns during peak business hours.
Commercial kitchens and restaurants
Industrial manufacturing facilities
Warehouses with exhaust ventilation
Auto shops and paint booths
Laundry facilities
Any space with significant exhaust requirements
Code compliance
Required by Ontario Building Code for commercial kitchens
Exhaust efficiency
Hoods work properly when air is balanced
Energy savings
Conditioned make-up air reduces heating/cooling load
Comfort
Eliminates drafts and pressure issues
Safety
Prevents backdrafting of combustion appliances
Is make-up air required for my restaurant?
Yes. Ontario Building Code requires make-up air for commercial kitchen exhaust systems. We ensure your installation meets code requirements.
Can make-up air be heated?
Yes. Make-up air units can include heating (and sometimes cooling) to condition incoming air before it enters the space.
How do I know if my make-up air system is working properly?
Signs of problems include: doors hard to open/close, drafts near the kitchen, exhaust hood not capturing smoke effectively, or comfort complaints.
Make-up air services across: