Login to the website here. To edit most  existing pages:

1. Once you log in, navigate to a page from the menu above
2. Select the Enable Visual Builder link at the top
3. Click on the text you wish to edit and make needed changes
4. Click on the green Save button in the bottom right to save your changes
5. Click the Exit Visual Builder at the top of the page to continue navigating the site

Once logged in, more help is available from the dashboard found under the Colour Energy Works menu in the top left.