Reduce header white space

Go to Appearance → Theme Options → Tools and add these two rules to the Custom CSS:

.site-logo.f-left>a {
    padding-top: 0;
}

.site-branding {
    padding-top: 0;
    padding-bottom: 0;
}

If you have other questions about ProfitMag, please post them in the ProfitMag support forum.

Thanks, CrouchingBruin that’s ahelped quite a bit.
There still seems to be undesired white space:
https://www.aaaedinburgh.co.uk/

Compared to the theme’s live demo:
https://profitmag.wpgaint.com/

Sorry to ask again, but do you have any ideas?

Are you referring to the white space above the logo picture? That’s part of the image itself. If you want to get rid of it, crop the image using an image editor and re-upload it.