Consumer Action: Home Improvement Published October 12, 2008 • Updated on October 13, 2008 at 5:37 pm District of Columbia DC Dept. Of Housing & Community Development: 202-442-7200 Maryland MD Home Improvement Commission: 410-230-6309 or 888-218-5925 Virginia VA Department of Commerce - Board of Contractors: 804-367-8504 Contract Referral Services Home Connections: 303-963-7200 or 800-474-1596