Expert MUA Services Tailored to Your Facility
From urgent repairs to custom system designs, we provide full-spectrum MUA services for GTA businesses
to keep your commercial property safe and compliant.
Make-up Air Unit Services in Toronto & GTA
Ensure balanced air pressure, superior indoor air quality, and optimized energy efficiency for your commercial facility with our expert MUA installation, repair, and maintenance services.
Mas Air Home Comfort provides expert MUA installation, 24/7 emergency repairs, and preventative maintenance for businesses across the Greater Toronto Area.
We Are Proud to Partner With
MAKE-UP AIR
Is Your Building Suffering from Poor Air Balance?
In modern commercial buildings, powerful exhaust systems in kitchens, laboratories, and manufacturing floors remove large volumes of air.
Without a dedicated Make-up Air (MUA) unit to replace that air, your building suffers from “negative pressure.”
Common signs of MUA failure include:
Difficulty Opening Doors
Doors that stick or slam shut due to air suction.
Persistent Odors
Kitchen or bathroom smells migrating to guest areas.
Drafts and Cold Spots
Unconditioned air leaking through windows and cracks.
Safety Risks
Back-drafting of carbon monoxide from water heaters or furnaces.
Our MUA solutions pull fresh outdoor air, filter it, heat or cool it to the desired temperature, and distribute it evenly throughout your facility.
MUA Applications Across the GTA
From the bustling commercial kitchens of downtown Toronto to sprawling industrial complexes in Mississauga, Mas Air Home Comfort delivers tailored Make-up Air solutions for a diverse range of sectors.
We ensure your ventilation system meets the specific regulatory and operational needs of your business.
Restaurants & Commercial Kitchens
Perfecting the balance between high-volume exhaust hoods and fresh air intake to ensure a smoke-free dining experience.
Condominiums &
High-Rises
Maintaining corridor pressurization to control odors and enhance fire safety across multi-unit residential buildings.
Retail
&
Office Spaces
Optimizing overall HVAC efficiency for maximum tenant comfort and significantly lower overhead costs.
Industrial Warehouses & Garages
Ensuring constant fresh air supply and the safe dilution of airborne contaminants in large-scale facilities.
Need an expert opinion on your building’s air balance?
Contact Mas Air today for a free, no-obligation commercial MUA consultation!
Industry-Leading MUA Systems We Install & Service
Authorized Expertise / Built for Ontario
We partner with the industry’s most trusted manufacturers to provide durable, high-performance equipment.
Whether you require a direct-fired gas unit or a complex heat-recovery system, we have the expertise to service and install.
ML196E
- Efficiency Rating (AFUE): 96
- Quiet Operation: Steel Cabinet
- Power Saver™ constant-torque motor
- Price Guide:$
ML296V
- Efficiency Rating (AFUE): 96
- Quiet Operation: Steel Cabinet
- Power Saver™ Variable speed fan motor
- Price Guide:$$
EL196E
- Efficiency Rating (AFUE): 96
- Sound-absorbing insulated Cabinet
- Power Saver™ constant-torque motor
- Price Guide:$$
EL297V
- Efficiency Rating (AFUE) 97
- Sound-absorbing insulated Cabinet
- Premium low-noise variable speed motor
- Price Guide:$$$
ML196E
- Efficiency Rating (AFUE):
96 - Quiet Operation:
Steel Cabinet - Power Saver™ constant-torque motor
- Price Guide: $
ML296V
- Efficiency Rating (AFUE):
96 - Quiet Operation:
Steel Cabinet - Variable speed
fan motor - Price Guide: $$
EL196E
- Efficiency Rating (AFUE):
96 - Ultra sound-absorbing insulated Cabinet
- Power Saver™ constant-torque motor
- Price Guide: $$
EL297V
- Efficiency Rating (AFUE):
97 - Ultra sound-absorbing insulated Cabinet
- Premium low-noise variable speed motor
- Price Guide: $$$
Why Choose Mas Air Home Comfort for Toronto HVAC?
24/7 Same-Day Heating Restoration
Commercial operations cannot afford downtime. We provide around-the-clock emergency repair services with a commitment to same-day arrival. Whether it’s a kitchen exhaust failure in a restaurant or an AC breakdown in a retail space, we are on standby to minimize your operational losses.
Licensed Heating Specialists
Our licensed HVAC technicians bring years of hands-on experience in HVAC services. No matter the brand, model, or complexity of the issue, we quickly diagnose the root cause and deliver reliable, long-lasting solutions.
Transparent Heating Pricing
Before starting any repair, we provide a clear quote and proceed only after your approval. Our pricing is transparent and fair, with no hidden charges, so you can have complete confidence in entrusting your furnace to us.
Complete Satisfaction Guarantee
We use only reliable original manufacturer parts or high-quality replacements, and we back every repair with a warranty. If the same part fails within 7 days, we will return promptly to fix it and ensure your comfort is protected.
Toronto Local Expertise
As a locally-owned Toronto heating company, we understand the unique challenges of GTA buildings - from century-old houses with converted heating systems to modern homes with high-efficiency furnaces. Our team ensures clear communication throughout every process.
Meet Our Expert Technician Team
Learn about our certified heating specialists.
Comfort You Can Count On
Families throughout the Greater Toronto and Hamilton Area trust Mas Air Home Comfort for service that’s fast, reliable, and rooted in real expertise. From urgent AC repairs to seasonal furnace checkups and everyday HVAC problems, we focus on delivering results that restore comfort—without delay or hassle.
The most honest HVAC company in the GTA!
Jack came over, was able to offer a reasonable solution to my home temperature issues.
When on site, realized that half of the job was not necessary. Let me know and didn’t charge me for needless work.
After the adjustment, I had overpaid - MAS refunded the difference on their own initiative.
Jack came over, was able to offer a reasonable solution to my home temperature issues.
When on site, realized that half of the job was not necessary. Let me know and didn’t charge me for needless work.
After the adjustment, I had overpaid - MAS refunded the difference on their own initiative.
I recently installed heating, air conditioning, a water heater, and a water softener, all thanks to the recommendations from sales representative Shawn.
He was extremely professional and provided fair pricing tailored to my house.
Shawn promptly addressed any questions I had before and after installation.
He was extremely professional and provided fair pricing tailored to my house.
Shawn promptly addressed any questions I had before and after installation.
My furnace stopped working in a Sat morning, then I start looking for solutions.
My friend refered Norman to me and he came to check for me 2 hours later found out that the heat exchanger was gone.
Very fast response and great service, thumbs up! Will definitely recommend Norman to my friends
My friend refered Norman to me and he came to check for me 2 hours later found out that the heat exchanger was gone.
Very fast response and great service, thumbs up! Will definitely recommend Norman to my friends
We want to replace our water tank to an energy saving tankless water heater and sought assistance from this company.
Shawn, our advisor, was exceptionally patient and thorough. He took the time to explain all possible options and detail with us, ensuring he fully understood our needs and preferences as customers. When it came time for the installation, David, the technician, was incredibly professional. He arrived promptly, worked efficiently, and maintained a high level of cleanliness throughout the process. His attention to detail and meticulous approach ensured everything was installed perfectly. I have nothing but good things to say.
Very happy with their service. Our furnace broke down on the weekend, and they booked to come the next day for a replacement.
The rep (Shawn) on the phone was very knowledgeable. His quote was a good price and it came with labour cost all inclusive, so no hidden fees.
When they got here, the technicians are highly skilled, hard working, and took the time to explain and answer our many questions. I am recommending these guys to my friends.
The rep (Shawn) on the phone was very knowledgeable. His quote was a good price and it came with labour cost all inclusive, so no hidden fees.
When they got here, the technicians are highly skilled, hard working, and took the time to explain and answer our many questions. I am recommending these guys to my friends.
Need a hand?
We're here to help.
To receive assistance, please complete the form, and our dedicated team will assist you every step of the way.
Frequently Asked Questions
Why is my MUA unit blowing cold air in the winter?
This usually indicates a flame failure, a tripped high-limit switch, or a frozen coil. Our technicians can diagnose and fix this immediately to prevent pipe bursts.
How often should I change the filters on my commercial MUA?
For most GTA businesses, we recommend quarterly filter changes to maintain airflow and protect the internal blower motor.
Can you retrofit an old building with a new MUA system?
Absolutely. We specialize in custom retrofits that integrate with existing ductwork while bringing your building up to modern efficiency standards.
Total Comfort Solutions for Your Commercial Property
From expansive industrial warehouses to high-traffic retail centers, Mas Air Home Comfort‘s TSSA-certified technicians deliver reliable, energy-efficient solutions across the Greater Toronto Area.
Explore Our Specialized Commercial Services:
- Rooftop Units (RTUs): Complete installation, repair, and maintenance for all-in-one packaged heating and cooling systems.
- Make-up Air (MUA) Systems: Precision air balancing and fresh air intake to ensure building safety and comfort.
- Warehouse Gas Tube Heaters: Targeted, radiant heating solutions for large industrial floors and open spaces.
- Commercial Garage Unit Heaters: Powerful, space-saving heating for loading docks, workshops, and garages.
Every facility has unique requirements.
Call us today at 1-647-360-6623 or book online for a comprehensive site assessment and a free quote on any of our commercial HVAC services.
