Mac-Bestos, Inc. is an environmental hazardous waste removal, clean up and certified training contractor serving Denver, Colorado and surrounding areas. Weve been in business since under the same ownership since 1988 with Jim J. Rivas, Jr. as president. Our trained technicians are dedicated to making environments healthful and safer for employees, customers and the public. We offer cleanup and abatement for many hazardous materials, including: Asbestos Lead Contaminated soils Mold Methamphetamine labs Re-insulation We also offer site safety training conducted by OSHA-certified personnel. Call today for a proposal on your job.