Leaking gutters are a common issue with a variety of causes. Knowing what damage a leaking gutter can cause will make a difference to how you approach gutter repairs. As well as help you understand the importance of gutter maintenance.
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Is a leaking gutter a problem?
Yes. Though how you deal with it can make all the difference to the lifespan of your roof and gutter. If you don’t clean or repair your gutter, you’re risking a whole roof repair which can cost you more as a result.
It’s also worth noting that Approved document H states all gutter joints should remain watertight during their use and that different metals should be separated by non-metallic material to prevent electrolytic corrosion (corrosion caused by electricity from the reacting metals).
What damage can a leaking gutter cause?
Leaking gutters can cause a variety of problems to the structure and appearance of a home. Below is an overview of the damages and what can happen as a result.
Find out more about the causes of leaking gutters and how to fix a leaking gutter joint through our ‘How to repair guttering’ guide. For cleaning tips, view our “How to clean gutters’ guide and see ‘Guttering cleaning tools‘ to see what we have available for maintenance at Drainage Superstore.
| Cause | Gutter damage as a result | Potential property damage as a result |
| Blocked gutter causing overflow and excessive weight on the gutter | •Splitting •Collapse | • Pooling at the side of the building - resulting in basement or building flooding (can also risk affecting building foundations) • Rotting of wooden structural elements - can pass down onto timber decking and porches causing rot • Structural instability • Increased risk of damp • Staining on wall material (such as concrete) • Damage to fascia |
| Incorrectly installed gutter with no fall towards the channel drain causing excessive weight on the gutter joints and gutter clips | •Splitting •Cracking •Collapse |
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| Joint issue such as wearing down or deterioration, as well as fluctuations in size (expansions or contractions) in different weather | •Leaking at the gutter joint •Weakened joint seals •Collapse |
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| Holes in the gutter due to corrosion, general wearing down of gutter material or sharp objects falling and damaging the gutter | •Leaking through the gutter instead of passing along the gutter run •Collapse |
Can you fix leaking gutters?
This will depend on the severity and cause of the gutter leak. In some cases, you will need to deal with one or more of the following:
- Gutter blockages
- Incorrect angle of the fall
- Gutter joints leaks
- Stop end leaks
- Gutter parts with holes
In the worst-case scenario, you may need a full gutter repair. If you’re unsure of the severity, speak to a professional.
You can find out more in-depth information about how to repair leaking gutters via our guide about ‘How to repair guttering‘.
What is the best gutter material to use?
As with any product, material matters when it comes to the durability of a gutter. Each gutter material has its benefits, but it does not mean they are immune to damage caused by the issues stated above. For example, aluminium guttering might have high durability, while cast iron guttering has decent fire resistance.
You can find out more about the different types of roof gutter materials in our guide to ‘Gutter types: which type of gutter is best for your project?‘.
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