A. Freer Construction installs leading Insulspan SIP Systems that provide higher effective thermal resistance and lower air infiltration than comparable building systems. Prefabricated SIPs from Insulspan also offer faster construction times and improved design flexibility. The whole system goes up so fast and efficient and equipped with dual-pane argon-filled windows, radiant heating, ENERGY STAR appliances, and low-flow fixtures and toilets. The home designs themselves are climate specific, with passive solar features for further energy savings. We look forward to working with you for your Commercial or Residential building projects.