Northeast Iron Works, Inc., in Washington, DC. We custom make security gates, staircases, window guards, and more for residential and commercial clients. Using the highest-quality metals, we create custom ironwork that gives your home or business a richer look.Northeast Iron Works, Inc. From the start, our goal has been to provide clients with the ultimate in functional and decorative iron for residential or commercial properties.  We do everything according to your requests so that you are completely satisfied with the finished product.