GJ Goss Contracting, Inc. is a family-owned home improvement company located in Harford County, Maryland.Representing three generations of skill and experience, it has been owned by Gregory Goss for 39 years. We specialize in residential roofing, siding, seamless gutters, replacement windows, and chimney repairs in Baltimore, Harford, and Cecil Counties. We are licensed with the Home Improvement Commission in both Maryland and Pennsylvania and maintain an A+ Rating with the local Better Business Bureau. For over 28 years, we have been the most trusted roof and siding company in the area. As a leader in the field, we know that homeowners have many options when selecting their contractor. We appreciate the trust and confidence we have received over the years and look forward to working with you.