DOOR GUARANTEES

XL JOINERY - https://www.xljoinery.co.uk/Documents/EXTERNALFITTING-2.pdf
                                   - https://www.xljoinery.co.uk/Documents/1381930098-Product%20Guarantee-2.pdf

LPD - https://www.lpddoors.co.uk/guarantee/

Deanta - https://deantawood.co.uk/caring-for-your-door/

JB KIND - https://www.jbkind.com/about/documents-and-policies/door-warranties
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VELUX GUARANTEE

https://velcdn.azureedge.net/~/media/marketing/master/guarantee/v-gb%20velux%20guarantee.pdf