John and his crew are very experienced in dealing with old houses and tricky plaster walls, which is what we have. They were courteous, professional, and wonderfully capable. When my wife asked them to do some additional work while they were here, they were gracious, willing and the additional cost was reasonable. Cosmos's prices are not rock-bottom, but we certainly received full value for what we paid. After years of paying not quite as much but getting far less in terms of service and quality, it was a genuine pleasure to do business with this company. We will definitely hire them again, and we recommend them to everyone.