Celtic Commercial Painting We are professional painting contractors and provide the highest quality painting, wall covering and decorating services to business offices, commercial and industrial companies in the greater Chicago-land area. Our sales and support staff works hard in conjunction with our experienced painters to ensure your needs are satisfied in a timely, safe and professional manner. We proudly employ union painters from District Council 14. Celtic Commercial Painting follows safety protocols designed by Safety Check, Inc. that goes beyond standard Occupational Health and Safety Administration (OSHA) requirements, giving our clients peace of mind. Monthly account reviews ensure that all accounting protocols and procedures are being followed and are in good standing.