BLH has been in business since 1988. We have over 40 years of experience between our staff, so we consider our selves experts in our field. We are open Monday through Friday 9am-5pm. We can be reached at (252)441-2798. Although our office operates at normal business hours we schedule cleanings, services and installations on the customers time line. We are here to keep put your company in good hands by giving the peace of mind knowing your business and employees are in safe hands.