We want you to be happy with your purchase, so we focus on getting it right rather than worrying about what happens when things go wrong. If there's an error on your part, we'll look at your situation on a case by case basis. We'll work with you to find a solution to ensure your shutters can fit. If they cannot be fitted with alterations you may need to purchase a new set at your own cost.
Fortunately, the number of occasions where this happens is very, very small. Our best advice is to read our measuring guides, take your time when measuring and contact us for advice before ordering if you are unsure.