Is it cheaper to repair or replace a flat roof?

Our flat roof is about 20 years old and has a few problem areas. We've had a quote to repair it and one to replace it entirely. How do you decide which makes more financial sense?

Asked by Greg on 4th Jun 2026
Expert Trade Answers
"It depends on the condition of the roof because even 40-year-old roof structures are good and they just need to be properly repaired, which is not as expensive as replacing the entire roof."
Answered on 4th Jun 2026 - Member since Sep 2024 - report
"Hello, we’re all depends on how bad the damage is but yes, a repair is cheaper but sometimes not possible if you want I can come and have a look and give you some advice"
Answered on 4th Jun 2026 - Member since Mar 2023 - report
"Replacing it would make more financial sense because it's twenty years old and more issues could arrise when repairing it."
Answered on 4th Jun 2026 - Member since Jun 2026 - report
"Repairs are false economy if the roof is old needs replacing"
Answered on 4th Jun 2026 - Member since Apr 2020 - report
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