Equipment Rental Source, LLC. is a family owned and operated company that specializes in providing a variety of construction equipment rentals and services to the Castle Rock community and the surrounding areas. We offer reliable equipment, on-time delivery, and competitive pricing. We pride ourselves on integrity, reliability and customer service. Our hours of operation are 7 a.m. to 5 p.m. Monday through Friday and 8 a.m. to 12 p.m. on Saturdays from May to September.