The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
And in an error-strewn match that England dominated for large parts it was Hook who again proved decisive.
After a cagey opening half hour when Rhys Priestland and Toby Flood traded penalties to make it 6-6, England began to assert their dominance.
Danny Care and Mike Tindall both found holes in the Welsh defence to establish strong territory in the opposition 22.
But wave after wave of English attacks were repelled in and around the try-line before Hape was caught and the ball turned over.
The sides went in level but Flood pushed England ahead after the break following Jamie Roberts seeing yellow for not releasing the tackler.
But even with 14-men the Welsh defence held firm as Tindall, Hape and Matt Banahan all failed to convert impressive scoring opportunities.
And they were made to pay as that man Hook broke clear and evaded tackles from Dan Cole, Care and James Haskell to touch down and put his side in front 13-9.
Hook added two more penalties either side of another sin bin, this time for Mike Phillips, and the Welsh held firm for a confidence-boosting win ahead of their final warm-up game against Argentina next week.
For England boss Martin Johnson it is a case of back to the drawing board before they take on Ireland after a blunt performance in the final third.