Commercial HVAC
Contracting & INstallation

Providing expert mechanical contracting and installation services since 1978.

Get The Job
Done Right

We deliver the best HVAC services to every job.

Our success comes from our ability to work to the smallest detail while providing HVAC systems on budget and on time.

Whether your needs are complete mechanical, design-build, design assist, or plan and spec, our skilled team manages vital details to execute your project from concept to completion.

Craftsmanship Is Not a Lost Art to Us

These are the values our team lives by on every project. With experience across all industries and a commitment to providing a safe working environment, we emphasize the importance of quality installations that deliver exceptional equipment performance. 


Attention to the smallest details throughout every project.

We fabricate and install streamlined and low-leak ductwork from our custom sheet metal fabrication shop to provide maximum airflow at minimum horsepower, saving energy and money while extending equipment life.


high-quality installation practices that ensure project success.

With a reputation for providing the highest quality products and services, our clients know they can count on us to deliver the best HVAC equipment, seamless coordination with other trades, and expert installation for exceptional results.


Long-term solutions that deliver air quality, comfort, and energy Efficiency.

We help determine the best HVAC equipment and solutions for the specific needs of your commercial project to provide reliable systems that provide the highest level of indoor air quality, cost-saving efficiency, and occupant comfort. 


Everyone should go home to their families the same way they came to work.

We put a high priority on the safety and wellbeing of our employees, looking out for each other and working as one unit to ensure the safest possible practices are brought to each jobsite and industry standards are kept at the forefront of all jobs.

Seamless Coordination With All Trades

Our focus on craftsmanship and high-quality installation practices, and our ability to coordinate with other trades, are among the top reasons our clients trust that they are getting the best HVAC services possible.


HVAC Expertise,
At Your Service

Leading HVAC professionals here for you from start to finish.

Our company has assisted numerous top developers and general contractors in the region on new projects from commercial and multi-family housing to mixed-use urban developments.

The great working relationships we have with some of the top mechanical engineering firms in the North Dakota and Minnesota area, coupled with our knowledge and experience, allow us to offer you unparalleled services.

You can count on us to prioritize the success of your project from the beginning when it is just an idea, providing you with solutions and a budget that works for you, while offering energy-efficient and reliable systems that maximize comfort throughout the process.


View our

Craftsmanship. Quality. Performance. These are at the heart of who we are at Custom Aire. View some of our work on a broad range of sectors in our gallery of projects.

Commercial HVAC Contracting & INstallation


From commercial heating and air conditioning to air ventilation and specialty equipment, we install HVAC systems that suit the specific needs of your building while offering exceptional energy-efficiency, indoor air quality, and comfort.  

Heating & Cooling
  • Air Handling Units
  • Air Source Heat Pumps
  • Boilers (Gas, Electric, Oil)
  • Cabinet Unit Heaters
  • Chillers
  • Condensing Units
  • Duct Heaters (Gas, Electric)
  • Ductless Splits
  • Floor Heating Systems
  • Furnaces (Gas, Electric, Oil)
  • Geothermal Heat Pumps
  • Heat Pumps
  • Pool Heaters
  • PTAC (Packaged Terminal Air Conditioner) Units
  • Radiant Heaters
  • Rooftop Units
  • Unit Heaters
  • Air Exchangers
  • Air Filtration
  • Carbon Monoxide Systems
  • Economizer
  • Exhaust Fan
  • Exhaust Hood
  • Humidifiers (Water or Steam)
  • Nitrous Dioxide Systems
  • VAV (Variable Air Volume) Boxes
  • Zoning Systems
  • Air Compressors
  • Commercial Kitchen Ventilation Systems
  • Computer Room Air Conditioners (CRAC Units)
  • Light Commercial Control Systems
  • Makeup Air Systems
  • Pool Dehumidification System
  • Pumps
  • Refrigerated Compressed Air Dryers
  • Water Heaters
Commercial HVAC Contracting & INstallation

LEED Experience

Putting a priority on environmentally responsible systems and processes for a brighter future.

We’re proud to have provided state-of-the-art mechanical contracting services that contributed to the completion and certification of a LEED-certified project in North Dakota.

Commercial HVAC Maintenance

At Your Service, Always

Once your project is complete, we keep your HVAC equipment running optimally long after installation.

Our commitment to bringing you the best continues with expert HVAC service for all of your maintenance and repair needs. The convenient Energy Savings Maintenance Agreements (ESMA) we offer allow you to choose the service that works for your schedule and budget to keep your system working at its best for years to come.

A round icon depicting a handshake in the center and Energy Savings Maintenance Agreements in text around the hands.
Commercial HVAC Contracting & INstallation

Retrofitting Services

Heating and cooling system additions, updates, and energy-management solutions of all sizes are also available, with the same high standards we bring to all of our new construction projects.

Our commercial HVAC retrofits deliver energy-efficient, cost-effective, and innovative products to your existing structure.

Retrofit benefits:

What our
clients say

We use Custom Aire on both service and maintenance calls. Highly recommended, clean, and professional crew. The technicians always follow up with a call if they found anything out of the ordinary or not, are very thorough, and do not oversell.
We are very thankful for the excellent service Custom Aire has provided us at the ICON Sports Center. They are professional, timely, understanding, and honest – all characteristics that we value at Grand Forks Park District.
We have been with Custom Aire for over 25 years. They do everything from heating and air conditioning to HVAC replacement. Their service department is second to none. We would highly recommend Custom Aire for all your heating and cooling needs. There is no job too big or too small – they can do it all!
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