
Make Up Air Unit Installation Denver
Proudly Serving Colorado For Over 55 Years

For more than 55 years, Rasmussen Mechanical Services has provided professional make-up air unit installation in Denver, Colorado and the surrounding area. We work in Aurora, Boulder, Colorado Springs and the entire Denver metro area. We pride ourselves on being able to work on all makes and models of heating and cooling equipment and serve commercial and industrial facilities.
Our installation experience spans a wide range of applications, including commercial kitchens, warehouses, manufacturing facilities, and large industrial spaces. We are committed to providing a safe and comfortable environment for both employees and customers.
CONTACT US
Address: 15335 E. Fremont Dr. Centennial, CO 80112
Main: 303-292-1113
24/7 Service Line: 1-800-237-3141
Email: rockymountain@rasmech.com
Office Hours: Monday – Friday: 7:00am – 4:00pm

OUR MAKE-UP AIR INSTALLATION CAPABILITIES
- System Sizing
- Kitchen Make-Up Air
- Warehouse Ventilation
- Commercial HVAC Ventilation Installation
- Direct Fired Make-Up Air Units

TALK TO THE EXPERTS
Let the experts at Rasmussen Mechanical handle your make-up air unit replacement or new installation. Our team evaluates your facility to determine whether a new MAU installation will improve performance, comfort, and efficiency. We evaluate the flow rate of the make-up air to ensure it matches the exhaust rate and prevents negative pressure. In Denver's cold climate, installing a duct heater for the make-up air is recommended to warm incoming air before it enters the space. Units must be automatically controlled to start simultaneously with the exhaust system and include a motorized damper for closure when not in use. With extensive experience in the commercial HVAC industry, our expertise, quality workmanship, and highly trained technicians set us apart in both commercial air conditioning and commercial heating systems.
LOCAL DENVER EXPERTS - FROM DESIGN TO INSTALLATION
Our factory-trained technicians understand the engineering requirements behind properly designed make-up air systems. Whether you are installing a new unit or replacing aging equipment, our commercial and industrial teams ensure your system is sized, installed, and commissioned correctly. We can expertly manage the entire project, from initial evaluation and design to final installation and compliance.
Serving the Denver metro since 1970
3rd Generation Family Owned and Operated Business
24/7 Emergency Service & Technical Support
Ground-Up Design and Installation
Dedicated Project Managers
Over 20,000 Parts In Stock
Local Reviews

“Stacey and Aaron have been awesome. Great to work with and really exceptional with resolving issues. I have a 100 confidence with your team. St Julien has found a vendor of choice.”
Ron Gallion - St Julien Hotel & Spa
“For all of my company's boiler needs, I won't go anywhere else. They have all the connections that I will ever need, from boilers to automation controls."
Dale Meyer– Stranahan's Whiskey Distillery & Cocktail Bar

DENVER MAKE UP AIR UNIT INSTALLATION FAQ
Can you install direct fired make-up air units?
Yes. Direct fired make up air units deliver a steady flow of fresh, tempered air, significantly improving indoor air quality and supporting proper ventilation. Our commercial HVAC services include expert installation, maintenance, and repair of direct fired make up air units, ensuring your business operates efficiently and meets all safety standards. Whether your facility is in Denver, Boulder, Colorado Springs or the surrounding area, our skilled technicians are trained to handle the complexities of these units. We work on commercial buildings, manufacturing plants and most commercial spaces. As your one-stop shop for commercial HVAC needs, we help you maintain a comfortable, compliant, and productive workspace.
Why hire a professional for MAU Installation?
Hiring a licensed HVAC contractor is crucial for make up air unit installation in commercial properties. Installing a makeup air unit in Denver involves understanding local codes and permits for any mechanical installation that alters or adds to a structure's HVAC system. When done right, proper installation of make up air units can improve energy efficiency and indoor air quality. When done incorrectly, you can increase energy usage by pumping more air than is needed into the space. Thermostats and zoning systems are also important for temperature control and energy savings in large buildings.

Is make-up air unit maintenance important?
Commercial HVAC systems, including heating equipment and boiler systems, require maintenance for proper daily operations in businesses. Evaluating existing systems is a key part of the installation and maintenance process. Regular and routine maintenance—including cleaning evaporator and heating coils, inspecting heating equipment and furnaces, and following a maintenance plan—prolongs system lifespan, reduces costs, and ensures optimal performance. While we don't serve residential clients, this allows us to be the experts on commercial and industrial projects. Proper system design, routine maintenance, and timely upgrades help reduce airborne contaminants and improve overall occupant comfort. We have extensive experience serving the restaurant business, industrial facilities and more. We can help prevent unexpected breakdowns through proactive maintenance and tailored solutions. To help you get started, we offer a free consultation for new projects or installations.
How do I know if my building needs a make-up air unit?
If doors are hard to open, drafts are present, temperatures are inconsistent, or exhaust systems overpower your HVAC, your building may be under negative pressure. Commercial kitchens, warehouses, and facilities with high exhaust rates often require a make-up air unit to restore proper airflow balance. We offer a full range of reliable service for all your commercial HVAC needs, ensuring optimal performance and long-term value.
WHY RAMSUSSEN MECHANICAL SERVICES?
We focus on improving indoor air quality, reducing energy costs, and optimizing the performance of your HVAC system. Our experienced technicians handle every aspect of the installation process, from balancing ventilation systems to installing ductwork, vents, and fans that fit your building’s unique layout and operational needs. We work closely with you to develop effective HVAC solutions that support your business goals, ensuring your heating and cooling systems operate efficiently and reliably. With our commitment to quality and customer satisfaction, you can trust us to deliver ventilation services that improve your building’s comfort and safety. As a local HVAC company we offers comprehensive commercial HVAC installation to businesses throughout Denver, CO and the surrounding areas.
SCHEDULE YOUR SERVICE TODAY!
GET THE HELP YOU NEED FOR ALL THINGS MECHANICAL
MAKE-UP AIR UNIT INSTALLATION PROCESS
Installation requirements vary by unit type and facility, but common steps include:
-System evaluation and appropriate unit sizing.
-Site preparation and removal of existing equipment.
-Proper placement of the MAU on foundation or structure.
-Installation of gas, electrical, and ductwork connections, including installing ductwork in challenging locations and ensuring proper sealing to improve airflow and energy efficiency.
-System startup, testing, and airflow balancing, with a focus on control systems such as automatic controls and motorized dampers to ensure the unit operates in sync with the exhaust system and closes when not in use.
After installation, it is important to evaluate the system and schedule routine maintenance to catch minor issues before they become costly repairs.