Depending on the James Hardie® product, waterproofing products may be recommended for use. As James Hardie does not manufacture or supply these products, please contact the relevant manufacturer directly for further information including supply and warranty details.
| Company Name | Service Area | Contact Number | Website |
| Ardex Australia Pty Limited | National | 1800 224 070 | www.ardexbp.com.au |
| Davco | National | 1800 653 347 | www.davco.com.au |