In our more than 22 years in business, Jamar Construction has built and maintained its reputation as one of the leading installers of quality windows, siding, and doors in northern New Jersey. Based in Paramus, we are a family-owned business, fully licensed and insured. Our employees are knowledgeable, factory-trained and certified, and dedicated to providing customers with timely, personal service. We are members of both the Bergen County Better Business Bureau and the Paramus Chamber of Commerce.