Diamond Glassworks is a premier commercial glass and aluminum systems contractor in central Indiana. We strive to provide a product and service that makes life simple for our contract partners and end users.  

Our foundation is simple. Faith, family and culture. Faith because we are called to love God and love others. Every decision is focused on moving families forward.  Our culture builds better men at work to become better men at home.  

Diamond Interiors was established in the late 80’s by “Diamond Dave” Lessaris. The glass division was born in 1996. Our garage days included a one truck fleet and a crew of three. Today we are Diamond Glassworks and Aluminum Systems under the leadership of 2nd generation “Diamond Dave”. We operate a fleet of more than 12 vehicles and proudly employ more than two dozen families in central Indiana.