Proper Phase offers a 4 tier plan of routine maintenance; within our plans, there is an option for customers ranging from small to large so that you can fit a plan that fits your business or residential model. The heavier the use, the more often equipment should be maintained in order to assure failsafe operation is the equipment ages. Everything fails eventually, but a regularly maintained system last many years longer than one that is neglected. Lighting systems and high power audio systems are especially susceptible to "gremlins" due to air cooling systems that become plagued with dust and debris during daily operation. Lamplife is significantly reduced, amplifiers run less efficiently, potentiometers (volume controls) become static prone, etc. If you are in a high dust environment, that is just one of many reasons that monthly or yearly service contracts can help protect your equipment at a fraction of the cost of a "as needed" service call. To learn more about how we can help you, please contact us.