Roof Leak Repairs
Persistent Roof Leak Repairs When Nothing Else Worked
If it's been fixed twice and still leaks, the last person missed the real cause.
There is a particular frustration in a leak that has already been repaired once or twice and still comes back every storm. It usually means the real cause was never found -- a symptom got patched while the source kept working away. We specialise in these stubborn cases. Rather than adding another patch on top of the last one, we go back to first principles, work out why every previous attempt failed, and fix what those repairs missed.
Why previous repairs keep failing
Persistent leaks almost always survive earlier repairs for one of a few reasons: the repair was made above the stain instead of at the true entry point, only one of several combined causes was addressed, or the fault is a design issue that patching cannot cure. Sometimes the earlier fix even created a new problem -- sealant trapping water, or a patch redirecting flow to a new weak spot. We identify which of these has been happening.
Stripping it back to find the truth
With a stubborn leak we do not trust assumptions, including previous ones. We often lift the earlier repairs to see what was actually done, re-run controlled hose testing across the suspect area, and inspect the cavity for every trail of water. It is more work than a quick patch, but for a leak that has beaten several attempts, thoroughness is the only thing that works.
Fixing the cause, including design faults
Once we know the real story, we fix the actual cause -- which sometimes means correcting an underlying design fault rather than just replacing a component. That might be reworking an undersized valley, correcting the fall on a box gutter, or re-detailing a flashing that was never right. We would rather do the harder, correct repair once than send you back into the same cycle.
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What's Included
- Review of all previous repairs and why they failed to hold
- Lifting and inspection of earlier patches to see what was actually done
- Thorough controlled hose testing across the whole suspect area
- Identification of combined causes and any underlying design faults
- Correct, durable repair of the true source rather than another patch
- Workmanship guarantee and honest explanation of the fix
Frequently Asked Questions
Why does my roof keep leaking after it's already been repaired?
Almost always because the real source was never found. Earlier repairs often patch above the stain, fix only one of several causes, or ignore a design fault. The water keeps entering at the point they missed, so it returns every storm. We focus on finding what those repairs overlooked.
What do you do differently to previous roofers?
We treat a persistent leak as a diagnosis problem, not a patching job. We often lift previous repairs to see what was done, re-test with water across the whole suspect area, and look for combined and design causes. Then we fix the true source, not just the nearest fault.
Could earlier repairs have made my leak worse?
It happens. Over-sealing can trap water instead of draining it, and a patch can redirect flow to a new weak point. That is why we inspect what was previously done rather than simply adding another layer on top of repairs that may be part of the problem.
Do you guarantee the fix on a leak that's failed before?
Yes. We back our workmanship with a guarantee, and for persistent leaks that means real confidence rather than crossed fingers. Because we fix the confirmed source and test it, we stand behind the result. If our repair fails, we come back and make it right.
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