I’d like to very highly recommend Siding Denver. We chose them to be the general contractor for the replacement of our windows and siding. Both sub-projects went very well. We evaluated: Renewal by Andersen, Marvin and Lifetime. Siding Denver (windows by Mezzo/Alside; James Hardie siding) was cost competitive, very well managed, timely and had excellent work quality. Do note that residing your house will involve lots of other details: In our case, replacing cable, phone, conduits and many additional other details. I did that work, and Siding Denver did/managed the rest.