K2 installed cellulose insulation when we built our home in 2005-2006. It is now late 2022. The insulation has worked great over the years. This spring we noticed a place in the attic where there was some settling. We called them about it, and they promptly came out and evaluated the situation. The also fixed it in a timely manner. We are really happy with their work and had them insulate our camp as well. I highly recommend them. read more