What would I use to fix this?

[Robin]

I'm not even sure what to call this. It's a 2' high wall thingy in my back garden. A couple of the pillars have come loose and the top bit has come off.

You can see a photo here:

pillars and the top bit are in good order, they just need "sticking" back together.

My question is, what would I fix this with? Just cement or is there something a bit more specific I should use?

Does the residue of the previous fixing material need hacked off first?

Any advice gratefully received.

- Robin

[Roger Mills]

It's called a balustrade - see

clean off the old mortar, and re-assemble using new mortar.

[Stuart Noble]

Car body filler. Done it many times. Make sure the surfaces are clean and dust free though.

[The Natural Philosopher]

ALMOST the same, but epoxy 'mortar' is slightly cheaper and a slightly better color.