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Specialties
Energy Efficient Heating and Cooling Systems
High Efficiency Furnaces, Air Conditioners, Heat Pumps
Renewable Energy Systems including Solar and Geothermal
Water Heaters and Radiant Heating Systems
Well and Water Testing
History
Established in 2001.
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 10 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.
Meet the Business Owner
Ryan L.
Business Owner
Ryan grew up in the family business. Logterman LLC grew from his father’s plumbing and heating business. After he retired, Ryan continued the heating and cooling part of the business and grew and expanded into green technology, including solar and geothermal.
Ryan is very interested in Green Technology and Renewable Energy, and is now involved in the installation division for Convergence Energy LLC, one of the top solar energy companies in the region.
When Ryan started out years ago it was just him and one other technicians, and now he employ eight full-time and part-time office staff, technicians and installers.