I can’t begin to tell you how crap these roofers are.

They also trade under different names- see above comments.

Beware anyone called Billy or Martin or anyone trading from 7 or 8 Crewe Avenue, Knottingley WF112AQ

Norther Roofers also trading as BD & Son Roofing and Brian Davis Roofing

Norther Roofers also trading as BD & Son Roofing and Brian Davis Roofing

These roofers are rubbish. Don’t even think about contacting them. 
They fitted new dry fix hips and ridges to my house and they were not fixed down. A strong wind would have blown them off.

once they have got your money you cannot contact them. They will not answer calls or emails.

complete set of scammers