When it comes to hot water heat for your home, our experienced design team will ensure you get the most effective and efficient systems for your home environment. Our qualified technicians have over 50 years of service and will install and maintain your system to operate at optimum performance and efficiency. All of our technicians are fully trained and capable of repairing any make or model.

Preventative maintenance is highly recommended in both Spring and Fall.

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:

  • Air Conditioning Systems
  • Forced Air Furnaces
  • Central Air Systems
  • Clogs/drain line
  • Ductless Units Energy
  • Recovery Ventilators (ERV’s)
  • Garbage Disposal
  • Gas Forced
  • Air Furnaces
  • Generators
  • Handicap Installations
  • Heat Pumps
  • Hot Water Boilers
  • Humidifiers
  • Ice Cube Makers
  • New Construction Design and Remodel
  • Programmable and Non-Programmable Thermostats (Wifi – Nest)
  • Steam Boilers
  • Sump Pumps
  • Toilet Installation/Repair
  • Tub/Shower Installation/Repair
  • Water Heaters

Client Testimonials

  • Thank you again for the great service. Please thank all the workers for me.

    Judy

  • Thank you for your excellent service.

    Joe

  • Thank you, Penny, for the quick service.

    Darwin

  • Thanks to Jay & the installers for the excellent service getting my tenants' heat stove put in. I'm very pleased with the service and I'm happy to say that GMS will be my new heating/cooling services for all future needs. Thanks again.

    Cindy

  • One Word! IMPRESSED! Thank you!

    Terry

520 W. South Park Avenue