Yes. Since I couldnt find a way to increase the size I used a really rough/customized Custom CSS to hide the real logo and the space for the header, and then I added an image instead.
#header {
display:none;
}
#logo {
display:none;
}
Unfortunately it doesn´t work on mobile/tablet devices though. Could you help me with that instead, bc now I have an image of the logo instead.
http://www.grabbgardenentreprenad.se