Our house is 114 years old and I have had Authentic Installations replace almost half the windows in my house and currently have the remaining windows on order. (Doing it in 3 phases.) Both times the windows were installed brilliantly. They were made to look like the old wooden double hung windows original to the house and retrofitted from the inside so that the outside of the house was not disturbed as we had just had it painted. They were very efficient with the installation and they cleaned everything up at the end of the day. They are very professional and easy to deal with. Dan and his crew were always here on time and with smiles on their faces. I would recommend Authentic Installations in a heart beat!