If you want to change the color of metal furniture, you can repaint it yourself or get even better results by turning over the task to a company equipped to do powder coating, a process in which paint particles are applied dry, using an electrical charge, and are then baked to create a finish that flows into all the tiny nooks and crannies before hardening into an extremely durable finish. If you repaint on your own, dull the existing finish with steel wool unless you suspect the paint is so old that it might contain lead. In that case, use an etching product sold at paint stores instead. You don’t need primer on the existing paint, but do spot-prime any bare metal with an alkyd (oil-based) primer. For the new finish, consider using an alkyd paint. Water-based finishes work, but the finish won’t be as hard. If you opt for refinishing by a pro, figure on spending about $100 a chair to have the existing finish removed and a new one applied via powder coating. Two area companies are Dominion Powder Coating in Manassas (703-530-8581; www.dominionpowdercoating.com) and Figure Finishing in Manassas Park (866-500-8484; www.figurefinishing.com).