Make-Up Air Units & Exhaust Systems -Saskatoon 

Fresh Air In. Stale Air Out. Reliable Ventilation for Commercial Buildings. 

Maintaining balanced airflow is essential for comfort, air quality, and code compliance. At MNS Mechanical Limited, we design and service Make-Up Air (MUA) Units and Exhaust Systems  that ensure clean, tempered air enters your space—while contaminated air is safely removed. 

Whether it’s a commercial kitchen, warehouse, auto shop, or multi-unit facility, we’ll tailor a ventilation solution that keeps your building safe and breathable. 

At MNS Mechanical Limited, we design, install, and service commercial ventilation systems that promote clean air, regulate humidity, and support energy efficiency across Saskatoon.

Why Make-Up Air Units & Exhaust Systems Matter

In buildings where air is constantly exhausted—through kitchen hoods, bathroom fans, or ventilation systems—negative pressure can build up, causing backdrafts, drafts at doors, and poor air quality.

Make-Up Air Units resolve this by introducing fresh, conditioned air that balances your internal environment.

Our exhaust and MUA solutions are designed to

IIn commercial buildings, ensuring proper ventilation and air quality is crucial for health and efficiency—it’s not just about compliance but creating a conducive environment for employees. At MNS Mechanical Limited, we specialize in the installation, repair, and maintenance of Make-Up Air Units (MAUs) and Exhaust Systems for businesses throughout Saskatoon. Our expertise helps enhance indoor air quality while promoting safety and operational reliability.

Replace exhausted air with tempered, filtered air

Prevent drafts and indoor air pressure issues

Control humidity and moisture 

Eliminate backdrafts and smoke/smell migration

Reduce energy waste from unconditioned outside air

Why Choose MNS Mechanical Make-Up Air Units & Exhaust Systems Services? 

With over seven decades of experience in commercial HVAC, our team knows what it takes to keep your facility ventilated, balanced, and compliant with Saskatoon building codes.


We service new builds, retrofits, and custom applications.

Our Services Include

Make-Up Air Unit Installation & Replacement – For commercial kitchens, automotive shops, production spaces, and more.

Exhaust Fan & Ventilation System Setup – Code-compliant exhaust for smoke, heat, fumes, and airborne particles.

Airflow & Pressure Balancing – Ensure consistent indoor air pressure throughout your building.

Preventative Maintenance & Filter Changes – Seasonal servicing and system inspections to maintain airflow and safety.

Retrofits for Older Buildings – Upgrade your ventilation without major reconstruction.

Industries & Facilities We Serve 

Restaurants & commercial kitchens

Hospitals and medical buildings

Multi-tenant buildings & condos

Government and municipal buildings

Schools & universities

Manufacturing and warehouse 

Common Make-Up Air Units & Exhaust Systems Issues We Fix 

Negative pressure and door suction

Uncontrolled odors or smoke in common areas

Noisy blowers or motor failure

Exhaust fans underperforming or noisy

No make-up air system present for high-exhaust spaces

Frequently Asked Questions About Make-Up Air Units & Exhaust Systems

  • Do I need a make-up air unit in my commercial kitchen?

    Yes. It’s a building code requirement in Saskatoon to replace the air exhausted by commercial hood fans.

  • What happens if I don’t have one?

    You may experience negative pressure, backdrafting of exhaust gases, cooking smells migrating, and non-compliance with local ventilation codes.

  • Can you add a MUA to an older building?

    Absolutely. We retrofit MUA systems with minimal disruption and ensure integration with your current exhaust setup.

  • How often should systems be serviced?

    We recommend biannual inspections and quarterly filter changes for high-use facilities like kitchens or shops.

Contact MNS Mechanical Limited for MUA & Exhaust Solutions 

Ensure your building breathes as it should—with fresh air coming in and exhaust leaving efficiently. 

Let us help you stay compliant and comfortable year-round.