The appropriate frequency depends on the building, the electrical equipment, how heavily it is used, its age, operating conditions and any previous problems.

Some properties may benefit from regularly scheduled visits, while others may only require periodic reviews or maintenance tied to particular equipment. Mass Contracting can review the property and recommend a practical schedule.

Certain facilities and electrical systems may also be subject to electrical operating permit and ongoing maintenance requirements in British Columbia. Those requirements depend on the equipment and facility, not simply whether the property is commercial.