I have a decramastic roof, roughly 44 years old and about the stage it needs replacing. House is 110 square metres. I've been struggling to get quotes, several companies I've called and said they'd call back and haven't or some I've emailed and haven't heard back. One company came almost straight away though, got me to do an asbestos test. It came back clear, and so they quoted $17k for 40mm zinacore corrugate longrun. Is that about what is average for these specifications? It's just I have nothing to compare it with