Greentech Energy Consulting, Inc. is a Van Nuys-based business that caters to South Gate clients. It helps residential and commercial property owners increase their building's value and energy efficiency through solar panel installation services. The company uses SolarWorld products in projects. It also helps clients qualify for government tax incentives. It installs other products that minimize a building's environmental impact, including low-flow toilets and LED lights. For property owners looking to protect their home's exterior walls from water damage, the company sets up elastomeric paint.