I’m Peter Berntsen and I am the owner of Koala Enterprises.  I’ve lived and worked in Sussex County for over 30 years.  I have been providing specialized HVAC Sales & Service in Sussex County  for over 10 years.



  • Delaware Master HVACR License  #HL-0000442
  • EPA Refrigeration Certification
  • Factory trained in service and installation for Rheem Products


Our Business Philosophy

 We offer reliable, quality service and fair pricing.

 Every service call and every installation is completed as if it were in our own home

Our Personal Promise

 We provide our customers with personalized, experienced service.

 Our goal is to provide our customers with the best value possible.


Contact Us

Tel: 302-436-9950

Email: peterberntsen@msn.com

We Accept