I have gotten prices back from several builders on plans which I have drawn up.
The construction cost for the building itself is fairly similar across all builders as I have also specified the specs in the home.
However, when looking through the provisional sum. there are some quite large variances. I've spoken to them and they all mention its based on their experience and they have formulas etc etc etc to work it.
My concern is, if I choose the cheapest overall builder, but then his provisional sums may be underestimated and the final price may be the highest after construction.
I've already tried to get them to reduce alot of the provisional sums, but not all and its still a fairly significant amount of money involved.
Can someone please advise how they manage this to reduce this risk?
The construction cost for the building itself is fairly similar across all builders as I have also specified the specs in the home.
However, when looking through the provisional sum. there are some quite large variances. I've spoken to them and they all mention its based on their experience and they have formulas etc etc etc to work it.
My concern is, if I choose the cheapest overall builder, but then his provisional sums may be underestimated and the final price may be the highest after construction.
I've already tried to get them to reduce alot of the provisional sums, but not all and its still a fairly significant amount of money involved.
Can someone please advise how they manage this to reduce this risk?