We have just had £24k's worth of work done on a house by a builder. We are overall very pleased with the work, but there are one or two snagging issues. Firstly a drive way has been cracked from having a skip on it that is too heavy. Also one of the new rooms doesnt get warm enough.

We sent him an email with the snagging list on it last night, and paid him everything bar £1k. He has emailed back today saying we have no right to withold the £1k etc etc, however he has agreed to come out and look at the issues.

Was I wrong to withold £1k (the cost of what I think it will be to resolve the issues?)

Ta

You were if you did not agree to withold a snagging fee in the first place

It is entirely acceptable to withhold a reasonable sum against works which are incomplete or not fit-for-purpose, and for damage caused.