The best time to re-grout is when you start to notice loose grout between tiles and the grout starts to be come thin or gaps appear in the joints
The best time to re-silicone is when you start to notice the existing silicone deteriorating and mould starts to build up which cannot be removed.
If you notice evidence of water damage coming from the same opposing wall to your shower taps it is best to organise an inspection immediately to prevent further damage to your home – it could be a shower tap breacher which is leaking which is a common cause for this and this can be rectified before it gets worse.
If you notice water stains or marks in your ceilings it is often a sign you have a leak from a section of your roof – this could be either a cracked or broken tile or a ridgecap that has had the pointing mix bedding break down or in metal roofing situations the roof sheeting could be rusted or a nail or screw has gone missing or even silicone may have broken down around a flashing section – these roof issues need to be addressed before they become bigger issues with large rain downpours causing further costly damage to your insulation & gyprock walls & ceilings.
As soon as you see the timber starting to have cracks appear in the paint it is best to have the timbers sanded & have the cracks filled then sanded and painted with 2 fresh coats of external paint – this will ensure longevity for your external timber from the elements of the weather without anymore expense for years to come.
It is best to always have your gutters cleaned prior to Winter and also during Autumn as the build up of debris needs to be removed from guttering to ensure valleys on your roof and downpipes don’t get blocked. If not done this can cause overflow of water back into your house via water penetrating through the eaves and entering into your ceiling & wall cavities causing further damage.