Barbecue grill guards, sometimes called splash guards, are inserted around the exterior of your barbecue to protect the chef and passers by from flare-ups and grease splatters. Grill guards can be purchased online in stainless steel and cast aluminum designs for between $20 and $100. Stainless steel grill guards offer the best protection against grease splatters as they are more durable and sturdy then aluminum grill guards are. Barbecue grill guards can also protect your grilling items from bugs, as well as sneezing and coughing spectators. Specially designed grill sneeze guards cover the entire grilling surface for added protection.