[twenty ten theme] link banner header

Try changing:

<div id="branding" role="banner">

to

<div id="branding" role="banner" onclick="location.href='https://www.hadfieldeducation.com/';" style="cursor: pointer;">

in header.php. But be warned that your customisations will be over-written the next time you upgrade WordPress or the theme. For this reason, it is recommended that you consider creating a child theme for your customisations.

or read
https://www.transformationpowertools.com/wordpress/twentyten-make-header-image-link-to-home

Thanks you both for your information, its worked!! I will look into chold themes but if you have any links esmi please do forward them on to me. Thank you alchymyth also.