Turn2Us (a national charity that helps people to gain access to information and support around benefits, charitable grants and support services) has a scheme that enables you  to make your Will for free, using qualified solicitors within reasonable travelling distance of where you live.

This offers you the opportunity to make or amend a simple single or joint Will with a qualified solicitor, free of charge.

Making a Will is very personal and can be daunting initially. However, it is the best way to ensure that people and causes you care about are taken care of exactly as you wish.

Turn2Us say there is no obligation to include a donation to them in the will you make but they hope that you will consider a gift to them or a charity of your choice – after you have taken care of your loved ones

Here’s how it works
Register your interest on the Turn2Us website https://www.turn2us.org.uk/Support-Us/Ways-To-Donate/free-wills-service and tick the Free Will Service box.
Their partner, the National Free Wills Network, will then send you the names and addresses of at least two local firms of solicitors taking part in this scheme.
The solicitor draws up your Will and you don’t have to pay the bill.

There is also lots of other  information on the Turn2Us website that you may find useful