Many homes use heaters and air conditioners depending on the time of the year therefore there is a need for some insulation to maintain the temperature within the homes. The objective of this research was to develop a polymer composite from silica aerogel to be used as heat insulators. The goal was to investigate the properties of silica aerogel and how mixing at different ratios with a polymer will affect the thermal properties of the polymer composite. A thermal conductivity test was performed on the composite formed. Future research will focus on improving the heat insulation of the polymer composite developed.