Reviewed by the S Reid Roofing Ltd team — last reviewed 2026-09-15
Quick answer
Check the contractor's real trading identity, insurance, relevant experience, previous work and independent reviews. A useful roofing contractor should also be able to explain what they found, why particular work is recommended and what is included in the quotation. Being unhurried about these checks is itself a reasonable sign, since a genuine business rarely objects to being verified before work is agreed.
At a glance
- A trading identity you can verify matters more than a memorable van livery.
- Reviews are useful evidence, but ask what work they relate to.
- A roofer who explains their diagnosis is easier to trust than one who does not.
- Written quotations protect both sides once work is agreed.
What to verify before anything is agreed
Start with the basics: a registered business name and address, a landline or fixed contact point, and confirmation of public liability insurance. These are simple to ask for and simple to check, and a legitimate contractor will not be put off by the question. Independent reviews add another layer of evidence, provided you check what work they relate to rather than taking a star rating alone. A handful of reviews describing the same type of job you need — a slope re-slated, a chimney re-flashed, a flat roof recovered — tells you more than dozens of generic five-star comments.
Relevant experience matters more than general experience. A contractor who regularly works on the type of roof and defect you have — slate, flat, chimney leadwork, heritage detailing — is more likely to diagnose correctly first time than one working outside their usual range. In a county like Cumbria, where roof coverings and exposure vary a good deal between a sheltered town roof and an exposed upland one, that local familiarity is worth asking about directly rather than assuming.
It is also reasonable to ask how long the business has been trading under its current name, and whether the person who visits to quote is the same person, or from the same team, who will actually carry out the work. A mismatch between the quoting salesperson and the working crew is not automatically a problem, but it is worth understanding before you commit.
What their explanation should sound like
A good roofer explains what they found, why it happened, and what the proposed work is intended to correct. If an explanation only describes the work and never the cause, it is worth asking a direct follow-up question before agreeing anything. For example, if you are told a section of ridge needs re-bedding, ask what caused the original bedding to fail — this distinguishes a contractor who has actually inspected the roof from one working off a standard list of jobs.
It is also worth paying attention to how the roofer handles uncertainty. Roofs sometimes have defects that only become fully clear once work is under way, particularly with timber decay or hidden flashing failures. A contractor who is upfront that further findings might change the scope, and explains how that would be communicated and priced, is generally more trustworthy than one who promises complete certainty before any covering has been lifted.
- What defect was found, and where.
- Why that defect occurred, not only what it looks like.
- What the proposed work is intended to achieve.
- What is included in the price and what is not.
- How unexpected findings during the work would be handled and costed.
Weighing price against the whole picture
Price matters, but it is only informative once you know it relates to the same scope, materials and inclusions as any other figure you are comparing it against. A lower price that excludes scaffolding, waste removal or a written guarantee is not necessarily better value. Treat the price as the last thing you compare, after you have satisfied yourself on identity, insurance, diagnosis and scope.
What we would check
During an inspection, areas we would normally look at for this include:
- Trading name, address and contact details you can verify independently.
- Evidence of relevant experience with the roof type and defect in question.
- Insurance confirmation appropriate to the scale of work.
- A written quotation that reflects what was actually found.
- Independent reviews checked against the type of work described.
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