"Hugo Nebula" wrote
| Hmm. I'd be tempted to see if a hired concrete mixer would be
| gettable in through the house, and then just get bags of sand,
| cement, and ballast and do it the hard way.
| What about a pump over the top of the house. May be a bit
| expensive for a conservatory, though.

How heavy's a little mixer? Would it be hot-air-balloon-able over the house?

Owain