Is immediate fix better or should repairs be delayed for better outcomes?

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I have a friend who ensures that anything is damaged, he would have it fixed at earliest. He does not rest till the broken item is back to normal or replaced. One of my neighbours on the other hand has been quite the opposite, he does not rush into repair immediately, rather takes time to do things. When it comes to plumbing or something similar, he clubs everything together and have it done at one go. Of course, if it is urgent, both should be fixing them immediately. It also made me think there are merits to the neighbour’s approach. One by taking time, he could analyse and find root cause of issues instead of bringing in temporary fixes. He could also at better expert to come and fix things for a better price. However, the approach can also be risky in the sense if the delay is long, it could cause troubles and serious hazards can happen. So, do you go with immediate fixes or have the repairs /replacement delayed for better outcomes?