Doerr Siding & Window was founded in 1969 and is the best place to get replacement windows in East Peoria IL. The Company is committed to providing quality work and customer satisfaction. Our objective at Doerr Siding & Window is to assist our customers to make solid and informed decisions on their exterior remodeling projects, no matter the size, by offering trained & certified personnel from sales, office staff, and installation and service crews, at an affordable budget.