Is the previous owner responsible for repairs up to 6 months after selling.?

We moved 5 months ago into a bungalow that had been refrubished. we had a surve carrried out and found a fault with the roof (asbestos) which we got covered by owner, but we have had to pay out a lot more for other things that weren't done properly and now we have found out there is a major leak under the new... show more We moved 5 months ago into a bungalow that had been refrubished. we had a surve carrried out and found a fault with the roof (asbestos) which we got covered by owner, but we have had to pay out a lot more for other things that weren't done properly and now we have found out there is a major leak under the new driveway and will have to have drive up. Water board will repair it and put dirve flat but we are responsible for cost of putting block paving back.
Update: We had the survey done before we bought it and he just came up with the asbestos roof.

The previous owner put the drive down.
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