About Us

Logterman LLC is a family owned and operated business. We have been providing Residential and Commercial HVAC Installation and Service to the Delavan Lake area for over 15 years.


Our goal is to provide energy efficient comfort systems for your home or business.

We have grown over the years, building a network of satisfied customers and a reputation for timely professional service at a fair price.

We would love the opportunity to provide you with a quote for new install or schedule a seasonal maintenance visit with one of our service technicians.

Call us Today!  (262) 215-4950
Schedule an Appointment Online

The Logterman LLC Team:


Ryan Logterman

Ryan is the owner of Logterman, LLC.  He has over 20 years experience in the HVAC industry and is a Certified Solar Installer

Ryan spends most of his time managing the team, as well as estimating and managing the larger projects including new construction, remodels, commercial accounts, and radiant, geothermal and solar installations. 

The best part of the job for Ryan has to be the relationships he has formed over the years with staff, suppliers, customers, and other contractors. Ryan also enjoys working towards being more ‘Green’. He strives to encourage the use of renewable energy systems to save energy and money, and to benefit the environment.


Noah Racette

Noah is our Installation Technician, and has been with us since October 2014. Noah has 10 years experience in HVAC installation, including custom sheetmetal fabrication. He has OSHA Certification, and ESCO Institute Universal Certification for Refrigeration.


Noah specializes in hydronics and geothermal systems as well as heavy commercial and industrial projects. He excels in working with exposed ductwork and industrial ventilation. Through his attention to detail, Noah is able to provide the highest quality of installation and takes satisfaction in seeing the end result of a project well done. 

Kelly Moon

Kelly is the Office Mangager, and has been with us since October 2013. She is the friendly voice you hear when you call our office. Kelly has 9 years of experience in the HVAC industry. She helps manage and organize the schedule for the technicians, dispatch, ordering materials & billing. Most importantly she makes sure the office mascot "Max" always has plenty of treats :)