How do I choose a reliable roofer?

This is the test that matters most. A diagnosis reached without inspecting the roof, the details and the roof space is a guess, and a quotation built on a guess will change once work starts.

Ask what they inspected and what they found. A reliable contractor answers with specifics — which flashing, which valley, the state of the fixings, whether they looked in the loft — and can show you photographs.

Dated photographs of the defect are the difference between being told and being shown. They let you understand the problem, compare quotations on the same facts, and check afterwards that what was described was what was done.

Someone unwilling to show you the evidence is asking you to buy on trust alone, which is unnecessary when a camera costs nothing to use.

A good explanation connects symptom to cause to remedy: water is appearing here, the entry point is there, this is why, and this is what fixes it. If the reasoning skips the middle step, the repair may treat the symptom while the cause continues.

Where the cause genuinely is not yet certain, saying so — and proposing how to establish it — is a sign of competence rather than weakness.

Pressure to decide today. Cash discounts for immediate agreement. Quotations that are only a total with no scope. Claims that a roof is dangerous with nothing shown to support it. Work offered because the contractor happens to be nearby with scaffolding.

A roof problem that has usually developed over years rarely needs a decision within the hour. Urgency applied to your decision, rather than to your roof, is a sales technique.

Confirm the company details, insurance and a verifiable address. Look at reviews across more than one platform and for detail rather than volume. Ask to see comparable completed work. Ask who will actually be on site.

None of this is onerous, and together it removes most of the risk from the decision.