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"We’re proud of the company we keep"

In the wake of the Coronavirus, we’ve got a few more ideas and products to add to your toolbox.  Try these solutions from Nu-Calgon.

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Coils and Controls

William E. Kingswell offers coils and controls for every major HVAC manufacturer, including Magic-Pak and Honeywell.


Are outdated and damaged coils ruining your energy efficiency? Even with proper maintenance, air-conditioning systems with outdated and damaged coils can use over 35% more energy than one with clean and new coils. Since replacing a coil is such a significant investment in your AC condenser, it’s important to choose parts that are high-quality and built to last.

Coil Brands


Your HVAC control system is one of the most important parts of ensuring an HVAC system that is energy-efficient and cost-effective. One study found that commercial building owners could save almost 40% on their heating and cooling energy bills by updating or adding to their HVAC controls. If you’re a commercial building owner searching for the right air-side economizer, supply fan speed controls, cooling capacity controls, or demand-controlled ventilation options, our staff can guide you through numerous types of controls and their respective potential cost savings.

Whether you need to replace the controls on your HVAC system or want an entirely new control system that better meets your needs, William E. Kingswell can help!

Control Brands

  • Barber-Colman
  • Columbus Electric
  • Honeywell
  • Robertshaw
  • Johnson
  • Kreuter
  • Siemens