Accreditations

Our commercial cleaning registrations, memberships and accreditations are your guarantee that our office cleaning services are maintained at the highest levels of quality.

Safe-Contractor
Olivers Mill has been a BS EN ISO 9001:2015 accredited company.

Quality Management System
Olivers Mill are Safe Contractor Approved

These accreditations demonstrate our robust management systems and our commitment to continually adopt the best practice for the benefit of our clients.