Frequently Asked Questions Question: Are Your Site Visits Free Of Charge? Answer: All our site visits are obligation and charge free, which can be booked online or over the phone. We reserve the right to avoid site visits for services, which may fall under our Call Out Charge (for up to 2 hours) and our Minimum Charge costs. This would apply normally for works with straightforward spec, where other services or complications are not expected by us or the client. These are described in our Cost of Sanding price guide.