Commercial HVAC New Construction and Replacement Division
The A-1 United HVAC Commercial Division offers our customers with everything they need to complete any job from start to finish. Whether you are planning to remodel, or a new construction project let our experts with over 30 years of combined experience handle your needs. Our goal is to help make your project successful, profitable, and painless both in the planning and in the field.
As a Premier Lennox Dealer, the RTU equipment we provide are:
- Energence® Ultra-High-Efficiency Rooftop Units [3-25 Tons]
- Energence® Rooftop Units (60Hz and 50Hz) [3-50 Tons]
- Landmark® Rooftop Units [2-25 Tons]
- Raider® Rooftop Units (60Hz and 50Hz) [3-12.5 Tons] o This line of rooftop units are compatible to many older systems
Have another brand in mind? Just discuss using one and we will verify our accessibility!
Don’t need a whole new unit? We provide several other Commercial Services:
- Installing curbs
- Kitchen Hoods
- All types of ventilation
- Economizers
- Smart Source Thermostats
- Garage heaters
- Radiant heaters
- And more!
To get a quote from one of our Comfort Advisors call (402)593-7500
or submit a bid request to support@a-1united.com

Lennox Emergence Rooftop Unit