Dave Gibson wrote:

Perhaps more importantly, if your garage is brick built, it is well worth
emulsioning the walls/ceiling with brilliant white paint. Just doing this
will make an unbelievable difference to the level as well as the quality of
light available, as the reflected light will reduce and diffuse shadows.

How timely. I was just thinking about doing this in my garage.

Do I need to undercoat the walls first, to paint on normal house bricks,
or just slap on a couple of coats of emulsion?

It is also worth sealing the floor (if plain concrete) with a floor paint.

Again, I've seen Garage Floor Paint in various guises, and I'm a little
bemused whether it needs a sealer or primer or something, because the
literature I've seen for various brands is contradictory or just plain
confusing.

--
Ben Blaney
Must try harder