Promar Siding is a leading Downers Grove siding replacement company since 2000. We are a family owned and operated home exterior remodeling company whose motto is: if you're going to do something, it is worth doing right the first time. We install vinyl siding, wood siding, fiber-cement siding, composite siding and metal siding. We install residential and commercial. Why Us? • Local to You • Licensed, Bonded & Insured • A+ BBB Rating • Free Estimates