Gartman offers bid and spec services for all of your sheet metal fabrication design and installation needs as well as mechanical and architectual design. We are a full sheet meal house that can provide duct work, carbon, stainless and aluminum, etc.  Gartman can take the fabrication skills and provide and install heating, re-ducting, dust collection systems, and architectual copper, p-clad, and galvanized sheet metal needs.

The professionals at Gartman Mechanical are available for any of your process requirements, new construction, or service needs to existing equipment. We offer design build services, sheet metal services, hot water, steam, chilled water piping and much more. Our qualified technicians aptly handle the challenges of energy efficiency, building occupancy, heating/cooling, load calculation, equipment selection and budget considerations.

Gartman Mechanical will install & maintain your system to operate at optimum performance & efficiency. Our technicians are fully trained with the ability to repair any make or model.

24-hour emergency services at 920-231-5530.

To schedule a repair or to request a free estimate, please call us at 920-231-5530 or send an email to This email address is being protected from spambots. You need JavaScript enabled to view it.

Other servces include:

  • Variable Air Volume (VAV)
  • Unitary Heat Pump
  • Single/Multi Zone Rooftop
  • Dual Duct
  • Dust and Fume Collection (Donaldson Torit, Messer)
  • Fan Coil
  • Induction
  • Chilled and Hot Water
  • Direct Expansion Cooling
  • Energy Recovery
  • Kitchen Hood Ventilation Systems
  • Kitchen Cook Ovens and Flat Top Repair
  • Commerical Ovens
  • Process Air Repair
  • Steam Piping
  • Ducted Supply, Return and Exhaust
  • Boiler Feedwater Systems
  • Process Air, Chiller, Gas and Hot Water Piping


  • Boilers
  • Heat Exchanger
  • Chillers
  • Cooling Towers
  • Evaporative Coolers
  • Pump
  • Air Handling Units
  • Roof Top Units
  • Condensing Units
  • Humidifiers
  • Electrostatic Filters
  • Heat Exchangers
  • Door Heaters
  • Stack Economizers
  • Incinerators Air Separators

GMS, Inc. can also provide the following services:

  • Cascade Systems
  • PSM Cad Drawing Services
  • Design/Build Turnkey Projects
  • Service and Maintenance
  • Refrigeration Control Systems
  • Refrigeration Parts and Service

We also specialize in the installation of all types of refrigeration equipment such as:

  • Walk-in Coolers
  • Walk-in Freezers
  • Ice Merchandisers
  • Ice Cream Freezer
  • Open Air Cases
  • Reaching Freezers and Coolers
  • Evaporative Condenser
  • Self-Contained Package Unit

Client Testimonials

  • Gartman's customer service and workmanship has always been stellar!  


  • Thank you so much for always fittings us into your schedule on such short notice. We truly appreciate it!


  • We are happy with the HVAC/ducting renovations done here.


  • Thank you for your speedy service & to Penny for getting us the documentation.

    Paul & Darci

  • Thank you for your help, Penny. We will keep you in mind for our next mechanical issue!


  • Thank you Penny & Scott for getting our new pool heater installation scheduled and installed so quickly. There is just something comforting about having GMS do the work as we know it will be done right and up to code. We feel safer too.

    Deb & Tom

  • Thank you for the great, timely service!


  • Air conditioner working great!!. Appreciate the great bunch of guys working here-they were super nice-left things better when they left.


  • You guys could probably teach a class on how to work with customers..appreciate your good service and communications!


  • Thank you for taking such good care of us. Always a pleasure working with you.


  • Thanks for jumping on it and the follow up call with the update.


  • Brian is the real deal, above and beyond helpful, honest, and hardworking. Thank you for allowing me to work with your best people. Appreciate you guys so much.


  • My family and co-workers are eternally gratefully for Gartman's service and timing with getting us back to showering!


  • Thank you for all your work!!

    M&B H

520 W. South Park Avenue