We have been on the cutting edge of new materials, building systems
and energy systems development for over 33 years. John Spears has developed numerous building and renewable energy products such as solar heating systems, advanced glazing systems for passive solar buildings, ultra efficient heating and air-conditioning systems, radon control systems, passive solar greenhouses and the Earth Home fully integrated building system for clients such as 3M, Weathershield windows, National Association of Home Builders Research Center, US Department of Energy, EPA and the Gas Research Institute and other private clients.

If you have a new technology, material or building system, we can evaluate it for you. We can also provide field testing and performance monitoring of equipment and whole buildings.