Service and Support

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Our Service Department supports all areas of our company’s expertise, including seasonal service and planned service agreements to meet your specific needs.

All of Aldag / Honold’s uniformed, professional, and friendly service technicians complete an intensive two and one-half year training program in conjunction with their five year Wisconsin State Indentured Apprenticeship programs. What this means to your home or business is that you’ll have your equipment serviced by the industry’s best trained certified technicians.

After hours, our main phone number will connect you directly to an “on-call technician.”

Our HVAC Service Department capabilities, including DESIGN/BUILD services, include: 

Commercial & Industrial

  • Hot Water Boilers (all brands) 
  • Low Pressure Steam Boilers (all brands)
  • High Pressure Steam Boilers (all brands)
  • Deaerators
  • Surge Systems
  • Boiler Feed Systems
  • Condensate Return Systems
  • Steam Traps and Vents
  • Air Cooled Condensing Units
  • Water Cooled Condensing Units
  • Hot Water Fin Tube Baseboard
  • Steam Radiators
  • Hot Water Radiators
  • Air Compressors
  • Refrigerated Air Driers
  • Steam and Hot Water Control Valves
  • Electric Controls
  • Electronic Controls
  • Digital Controls
  • Pneumatic Controls
  • Air Cooled Chillers
  • Water Cooled Chillers
  • Cooling Towers
  • Hot Water Circulating Pumps
  • Chilled Water Circulating Pumps
  • Boiler Feed Pumps


  • Steam and Hot Water Boiler Systems 
  • Plumbing Service   

  • Process Burners (service, combustion testing, and upgrades)
  • Boiler Burners (service, combustion testing, and upgrades)
  • Fan Coil Unit Heaters
  • Convectors
  • Unit Ventilators
  • Air Handling Units
  • Exhaust Fans
  • Process Chilled Water Systems
  • Dust Collector Cleaning and Service
  • Heating/Cooling Roof Top Units
  • Make Up Air Units
  • Computer Room Units
  • In-floor Heating
  • Radiant Heating
  • Water and Air Testing and Balancing
  • Coil, Blower, and AHU Cleaning
  • Geothermal Heating and Cooling
  • Air Quality Testing
  • Refrigerant Recovery Services
  • Swimming Pool Heaters
  • Swimming Pool Room Climate Control
  • Confined Space Services
  • Smoke and Fire Damper Testing
  • Electric Control Panel Coolers

Contact Us

Aldag/Honold Mechanical, INC.
3509 Business Drive
PO Box 1265
Sheboygan, Wisconsin 53082-1265
Telephone: 920.458.5558
Fax: 920.458.3750

Matt Van Buren, Plant Manager, DLM Holdings

Over the past couple of decades our company has worked on numerous projects and has greatly appreciated the team at Aldag/Honold for their professionalism and ability to achieve deadlines and complete projects with the utmost quality. A dust collector fire had our company anticipating a lengthy downtime and a substantial cost to replace the system, but with Aldag/Honold’s team of engineers and craftsmen we were up and running in the least amount of time and within budget. Our collection system has never been better!!

Matt Van Buren, Plant Manager, DLM Holdings