0 someone who decorates or repairs their home, or makes things for their home, rather than paying someone else to do it for them: --
Plastering over a large area is probably not a job for the first-time DIYer.
A drill is a basic requirement for any DIYer.
Professionals have powerful heat guns for this purpose, but for the DIYer a reasonable hairdryer and patience should do the trick.
An enthusiastic DIYer might carry out the alterations for about £50,000.
These drills are easy to operate, even for the first-time DIYer.