ive posted a similar thread on the trade talk part of this forum, i may have a loft conversion to start and the customer is asking for a guarantee. Ive been plastering 20 years and have never needed to give a guarantee or have been asked for one but a loft conversion is different to skimming a dining room. Im not sure what kind of guarantee i can offer, without just my word or a written document to say as such what would you expect or what is on the market. What kind of guarantee do you offer? What guarantee have you got and is it worth the paper its written on? cheers.