Have you had any of the following problems with your boiler? The £ callout excess does not apply to new boilers in warranty only other items you have on cover external to the boiler. There are other ways to save money, like having your boiler serviced; insulating your home; replacing your thermostat; or switching energy supplier. Anthony and jake came out and unclogged my drain! did a great job , fast , and knowledgeable! You also need to check with your local council.