It Depends On The Cause
A leak is a symptom. The right answer depends on what is causing it, how widespread the problem is and what condition the rest of the roof is in. A single failed flashing is a very different situation from a roof where fixings and coverings are failing across the whole slope.
That is why a proper inspection comes first. Anyone who tells you that you need a new roof without showing you why should be questioned.
Signs A Repair May Be Enough
Repair usually makes sense when:
Damage is isolated
A few slipped tiles, a cracked slate or a worn section of ridge.
The cause is clear
A failed flashing, a blocked gutter or a damaged valley is identified.
The rest of the roof is sound
Fixings, battens and covering elsewhere are in good order.
The roof is not near the end of its life
There are years of useful life left.
Signs You May Need Replacement
Replacement is more likely when:
Problems are widespread
Slipping, cracking or failing covering across large areas.
Repairs keep recurring
You are paying for repeated fixes in different places.
The structure is affected
Rotten battens or timbers, or a sagging roof.
The roof is at the end of its working life
Age and condition suggest it is time to plan ahead.
Think About The Long Term
A repair can be good value, but if you are likely to keep repairing a failing roof, a replacement may cost less over the years. A good roofer will weigh both with you, give you an honest view and put the numbers in a clear written quote.
Free “Is My Roof Failing?” Checklist
A one-page checklist you can use from the ground and the loft to spot the early warning signs. Free to download.
Get The Free ChecklistThe Bottom Line
Repair when the problem is isolated and the rest of the roof is sound. Replace when problems are widespread, recurring or structural. Either way, insist on an inspection and a clear explanation of the cause.
Frequently Asked Questions
Is it cheaper to repair or replace a roof?
A repair costs less up front, but repeated repairs on a failing roof can cost more in the long run. A proper inspection will show which makes sense.
Can you repair a roof that is leaking?
Usually, yes. We find the cause of the leak and repair it properly rather than patching the symptom.
What guarantee comes with a repair or a new roof?
We give a 12-month workmanship guarantee on repairs and a 10-year workmanship guarantee on new roofs and full re-roofs.
Will you tell me if I do not need a new roof?
Yes. We recommend the right repair, not unnecessary work.
How do I know the leak is from the roof?
Leaks can come from the roof, flashings, chimneys, gutters or plumbing. An inspection helps identify the real source before any work begins.
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