About Us

About Us

Established in 1933 and since the late 1970s, Thornthwaite has been providing commerical washroom solutions to the Australian market. In fact, the vast majority of Australians have probably used our products. Some of our key brands include Rada, Presto, B-Safety and Santon Switches.


In addition to our commercial bathroom products, Thornthwaite supplies high quality Santon rotary switches. With a complete range available in AC and DC from 10A up to 2000A and 1000V, Santon switches are robust, shock proof and vibration proof.

Please open the attachment or click on the link below for more information:

Santon General Presentation


Customer Support

Thornthwaite prides itself on being available to assist customers and specifiers with design assistance, tender and installation support and after-sales service.

Our team undergoes intensive product training so that we can provide exceptional customer service at all times and ensure that the right product is provided for your needs.

Phone our team on 02 9417 4466 to speak with a qualified salesperson.

Our Products

Innovative design and precision engineering deliver five key benefits to our customers:

  • Water and energy savings
  • Comfort and hygiene
  • Reliability
  • Vandal resistance
  • Easy installation and maintenance


Our products can be specified for the following applications:

  • Education
  • Food Processing
  • Health and Aged Care
  • Office Blocks & Retail
  • Public Amenities
  • Sport & Leisure

Where to Buy

Thornthwaite commercial washroom products are distributed throughout Australia via plumbing merchants. We stock a full range of products and spare parts available for same-day dispatch.

We are the distributor of Santon Rotary Switches, and manufacture them to order.

To find your nearest stockist or merchant of commercial washroom products, please contact us.