How to Find a Trustworthy Roofer in Dorset
Red flags to avoid, questions to ask, and what a professional job actually looks like — a homeowner's guide to hiring with confidence.
In this article
Roofing Is an Unregulated Trade — Which Means You Need to Be Careful
Unlike electricians (Part P) or gas engineers (Gas Safe), there is no legal requirement for a roofer to hold any qualification or registration before trading. In theory, anyone can call themselves a roofer tomorrow and start knocking on doors. In practice, the gap between a competent professional roofer and an incompetent or dishonest trader can cost homeowners thousands of pounds — and in some cases leave their home worse off than before.
Trading Standards receive thousands of complaints each year about roofing companies — from overcharging for unnecessary work to taking deposits and disappearing. Dorset is not immune to this problem. After every significant storm we see a wave of opportunistic traders working the county.
The good news is that genuine, professional roofers are easy to identify when you know what to look for. This guide gives you the tools to make a confident, informed decision.
The bottom line: A trustworthy roofer will welcome your questions, provide verifiable credentials, offer a detailed written quote with no pressure to commit, and be easy to contact before, during and after the job. If any of those things feel difficult, walk away.
Red Flags: Walk Away If You See These
These warning signs appear consistently in Trading Standards and consumer complaint data about rogue roofers. Trust your instincts — if something feels off, it usually is.
They Arrived Uninvited After a Storm
A roofer turning up at your door claiming to have "noticed damage" on your property while passing is a classic rogue trader tactic. Legitimate roofing companies find work through recommendations, repeat customers and online searches — not cold-calling. Damage that was there before is damage they could easily invent.
Cash Only, No Receipt
Insisting on cash payment with no invoice is a reliable indicator of a trader who doesn't want a paper trail — whether for tax purposes or because they know the work won't hold up to scrutiny. Always get an invoice. Always pay by bank transfer or card where possible, which gives you a transaction record.
No Verifiable Address, Phone or Website
If a roofer can't point you to a traceable business address, a working landline or mobile number that continues to work after payment, and some online presence — reviews, a website, a social media page — they may be deliberately hard to trace when things go wrong. Always verify the address is real before committing.
Pressure to Sign or Pay Today
"This price is only available today." "We have a cancellation and can start tomorrow — but I need a deposit now." These are high-pressure sales tactics designed to prevent you getting alternative quotes. Reputable roofers are busy enough that they don't need to pressure anyone into signing. Take the time you need.
Unusually Low Quote
If one quote comes in significantly lower than two or three others, ask why. Sometimes there's a legitimate reason (e.g. they already have scaffold nearby). But more often, a rock-bottom quote means corners will be cut on materials, method or safety — or it will balloon once work has started and you're committed.
Demanding Full Payment Upfront
It's reasonable for a roofer to ask for a deposit on larger jobs — typically 10–20% to cover materials. Demanding 50% or more before starting, or full payment upfront, is a serious warning sign. Never pay the full amount until the job is complete and you're satisfied.
What to Look for in a Trustworthy Roofer
Genuine professionals are easy to identify. These are the markers of a roofer you can rely on:
Trade Body Membership
Look for membership of the National Federation of Roofing Contractors (NFRC) or the Federation of Master Builders (FMB). Members are vetted, insured and commit to a code of conduct. You can verify membership on their websites.
Public Liability Insurance
A minimum of £1 million public liability insurance is essential. Ask to see the certificate — a genuine roofer will provide it without hesitation. Without insurance, any accident on your property could leave you liable.
Established Local Reputation
A roofer who has worked in your area for years will have a visible track record — Google reviews, Checkatrade or Trustpilot ratings, word-of-mouth recommendations. Ask neighbours who they've used. Local knowledge also matters for sourcing matching materials and understanding area-specific challenges.
Written, Itemised Quote
Not a ballpark figure scrawled on a card. A proper written quote specifies exactly what work will be done, what materials will be used (manufacturer and grade), the timeline, and the total cost including VAT.
A Guarantee in Writing
Reputable roofers stand behind their work. A written guarantee on workmanship — separate from any manufacturer's material warranty — demonstrates confidence in the job they're doing. Chimney Geeks offer a 10-year workmanship guarantee on roofing work.
Responsive Communication
Can you get them on the phone? Do they return calls? A roofer who is hard to reach before you've hired them will be very hard to reach if there's a problem afterwards. Communication quality is a reliable proxy for professionalism.
5 Questions to Ask Any Roofer Before Hiring
These questions are easy to ask and very revealing. A professional roofer will answer them without hesitation.
"Can I see your public liability insurance certificate?"
Any legitimate roofer will have this and produce it readily. If they're vague, can't find it or seem offended by the question, that's a significant red flag.
"Are you a member of any trade body?"
NFRC, FMB, or similar. Ask for their membership number so you can verify it independently on the trade body's website. Genuine members will encourage you to check.
"Can you provide a written, itemised quote?"
A verbal quote or a single-line total is not enough. You need to know exactly what materials will be used, what's included, and what might change the price if additional issues are found.
"Do you offer a written guarantee on your workmanship?"
Separate from any material manufacturer's warranty. Ask what it covers, how long it lasts, and how to make a claim if needed. A roofer who won't put a guarantee in writing doesn't have confidence in their own work.
"Can you give me two or three references from recent local jobs?"
A roofer with a solid track record in the Dorset area should be able to point you to satisfied customers in your area. If they can't — or won't — that's worth noting. You can also look at their Google or Checkatrade reviews independently.
Payment terms: A reasonable deposit for a large job is 10–20% to cover materials. Stage payments for work in progress are normal on bigger contracts. Never pay more than 10–20% upfront, and always withhold a final payment (typically 5–10%) until you have inspected the completed work and are satisfied.
What a Good Roofing Quote Actually Includes
A professional written quote for roofing work should include all of the following. If any of these are missing, ask why before signing anything.
- ✓
Scope of work described clearly — exactly what will be done, what will be removed and disposed of, what structural elements will be inspected.
- ✓
Materials specified by manufacturer and grade — not just "tiles" but which tile, in what colour, from which manufacturer. Not just "lead" but which code weight.
- ✓
Start date and estimated duration — so you know when work will begin and roughly when your property will be disturbed.
- ✓
Total cost broken down by element — labour, materials, scaffold, waste disposal. And whether VAT is included or additional.
- ✓
Payment terms — deposit amount, stage payments if applicable, and final payment trigger.
- ✓
A note on variations — what happens if additional work is uncovered (e.g. rotten battens beneath old tiles)? A good roofer will agree a process for this upfront rather than surprising you with extras on the final invoice.
- ✓
Guarantee terms — clearly stated, in writing, as part of the contract.
Why Chimney Geeks?
We're a family-run business based in Poole with over 35 years' experience serving the Dorset area. We don't knock on doors, we don't use pressure tactics and we don't hide behind the small print. Every quote we provide is written, itemised and transparent. Our work is backed by a 10-year guarantee and we carry full public liability insurance.
We're HETAS registered for chimney and stove work, and our roofing team has the same commitment to doing things properly. If you're comparing quotes and want a second opinion on what another roofer has proposed, call us — we're happy to take a look and give you an honest view, even if it means telling you the other quote is perfectly reasonable.
Ready to Hire a Roofer You Can Trust?
No pressure, no hidden extras, no door-knocking. Just honest roofing advice and quality workmanship from a family-run team with 35+ years in Dorset.