When rust or holes start appearing in your guttering, you have to make a decision as to whether you should to repair or renew.
Some of the things that need to be considered include:
+ How much of the guttering is damaged.
+ What style of guttering you have on your house and how easy it it to match the style. For instance, if it is very old or a special shape then it might not be possible to find something that will join seamlessly.
When a new house is built and guttering installed, the gutters should last between 15 - 25 years. This is because as the house settles or moves slightly in the first few years, the gutters move with the house frame and this changes the ‘fall’ or the way water runs along the gutter. When the house settles too much, the fall can become seriously faulty and the guttering will begin holding water. Where guttering holds water, dirt, leaves and debris accumulate, creating an acidic environment that corrodes the coating on the metal, accelerating the rusting process.
If your gutter is over thirty years old and holes are starting to appear, then it is usually cheaper and more efficient to replace the whole thing, including the brackets. If you just replace the guttering without changing the brackets, the gutters will still hold water because the fall hasn't been changed, encouraging guttering to rust again in a few years’ time.
We have seen people replace small sections here and there over the years, and they end up with several slightly different types of gutter that don't quite fit together. This means that:
+ It doesn't look right, which affects kerb-side appeal
+ The flow of water is impeded because lots of silicon is used to join the different sized gutters.
+ Dirt, leaves etc. are likely to be caught at the joins because the inside of the gutter isn't smooth.
After several years of doing this, you need a renewal because you still have the problem even though you will have spent more money on repairs than you would have if you had renewed it in the first place.
If your gutter is only a few years old however, a replacement and changing the fall in this area, is probably sufficient.
When you re-gutter your home the second time it should last for 30 - 50 years because the house is well and truly settled and so the fall will not change when the second lot of guttering is installed. The tradesman should put the guttering up in such a way that the water runs smoothly towards downpipes so that it doesn’t hold water. Last year, after the big Brisbane storm, we replaced one lot of guttering that was installed in the 1880s -130 years ago!