Carroll recently installed a cooling system in my old house (1935). I got quotes from several local businesses. Carroll's proposal was the best by far in meeting my needs for a system, and they were also the best priced. A month later, I am loving the new system, but am still cleaning up hunks of plaster and lots of plaster dust. I understand that installing ductwork is messy, but why not use a tarp? Or at least warn me to remove items before work began.