I worried needlessly about Dec installation of 9 windows in my home due to possible bad weather, heat loss and possible dirty/stains on the carpeting. G'ma was right! Worrying never solved anything. It's just a waste of time. The installers were more than immaculate, polite, professional, informative and proficient. They are welcome to stop by for a visit anytime. I got great value for the money and made some new friends as a bonus. They are my only 'go-to' home improvement business card in my file now.