Please be aware that i do not quote for lock repairs or replacement over the phone or by email.Very few people can accurately describe the work required. For an accurate quote the only way is a site visit,i do not believe in quoting £40 for a job and turning up on site and telling the customer it will cost you £120.A common call is how much to change a union mortice lock,what the customer omits to tell you is the door is locked. A quote for a lock change is different from a gain entry and lock replacement.Price are only given to the customer on site, please do not send email asking for my rate as i do not have a fixed rate Please note i do not supply cheap euro cylinders for upvc doors beware they come in different grade and price