Is it the same in Australia? I remember a couple of years ago just after the Brisbane floods word went out to the SE Queensland congregations to donate supplies and labour and that. It was all to be taken to the assembly hall just south of Brisbane. That was just the charity sort of stuff and tools, but I don't know about the labour.
I know when I lived in another disaster area, this time in far north Queensland (the pointy bit at the top of Australia) brothers and sisters with chainsaws and bobcats went down to the destroyed town and freed trapped JWs from their homes. I don't know about the repair to the homes because it can take up to a year for insurance moneys to be paid. Usually, insurance moneys are paid straight to whoever does the building and repairs, ie the insurance pays for the repairs rather than giving the money to the householder to spend as she/he sees fit.
How do they then scam the Australians?