Took a while to figure out how to turn off comments on static pages in WordPress.
Found the answer via WordPress support pages.
–  Edit the Page in question
–  In the top right of screen there should be ‘Screen Options’ menu. Click this.
–  A drop-down menu (or similar) should then appear, allowing you to tick/untick lots of selections which will then be available when you’re editing Pages. One of these selections should be ‘Discussion’ and ‘Comments’. Tick both of these – and any others you want.
–  Should then have lots of extra options added to your ‘Edit Page’ editing options, including ‘Discussion’ where you can turn off ‘Allow Comments’

Its a bit hidden away, so no wonder people (including me) have had trouble finding it.