Customer Service How can we help? Thank you for being a STANLEY Security customer. Please get in touch and our expert customer service team will answer your questions as quickly as possible. If your business is moving, under new ownership, or you need to make a change to your services with STANLEY Security, please use our Change In Service form. To pay your bill, visit our Online Billing service. If you have a question regarding your invoice, please visit our Invoice Inquiry page. To learn more about one of our other security businesses including STANLEY Access Technologies (Automatic Doors), STANLEY Healthcare, Sonitrol, or Pacom, please visit our Security Businesses Page.