However, if the necessary part isn’t locally available, we will order it for you and schedule a return visit to finish the repair services on your boiler at not extra cost to you. To obtain a copy of our terms and conditions contact us at 0800 0086 999. Hilton solve your blocked drain fast! In general, internal works don’t require planning permission unless you’re in a listed building this includes kitchens and bathrooms, except when they’re part of a house extension. Sometimes.