How to Choose a Reliable Roofer (And Avoid Getting Ripped Off)
Published by City Roofing Repairs | Cambridge, Cambridgeshire
Finding a roofer you can trust is one of the most stressful parts of dealing with a roofing problem. You've got damage that needs fixing, you're worried about costs, and the last thing you need is to hand over money to someone who does a poor job — or worse, disappears halfway through.
You're not alone in worrying about this. Research shows that over half of UK homeowners struggle to find a trusted tradesperson, and the roofing industry has more than its share of horror stories. But it doesn't have to be that way. Here's how to spot a reliable roofer and avoid the ones who'll let you down.
The Red Flags — Warning Signs of a Roofer to Avoid
Before we get to what good looks like, here are the warning signs that should make you walk away.
They knock on your door unsolicited A roofer who knocks on your door claiming they were "just passing" and noticed a problem with your roof is one of the oldest tricks in the book. Legitimate roofers are busy with booked work — they don't need to cold-call on doorsteps. This is one of the most common tactics used by rogue traders across the UK. The "problem" they've spotted is often exaggerated or invented entirely.
They want cash upfront No reputable roofer should ask for full payment before the work is done. A deposit for materials on a large project can be reasonable, but cash upfront for a repair — particularly from someone you haven't worked with before — is a red flag. Reliable roofers are confident enough in their work to let you pay on completion.
They can't provide written quotes A verbal estimate that "it'll be about a grand" isn't good enough. A professional roofer will provide a clear, itemised written quotation that details the work to be done, the materials used, and the total cost. If someone won't put it in writing, they're leaving room to change the price later.
They pressure you into a quick decision "I can do it now if you agree today" or "this price is only good until Friday" are pressure tactics. A genuine roofing problem will still be there next week. A reliable roofer gives you a quote and lets you decide in your own time. If they're pressuring you, they're worried you'll get a second opinion — which tells you something.
They can't show proof of insurance Any roofer working on your property should carry public liability insurance. If they damage your property, you need to know you're covered. Ask to see their insurance certificate. If they can't produce one, or get evasive about it, don't let them on your roof.
They have no online presence or reviews In 2026, a legitimate roofing business should have some form of online presence — a website, Google Business profile, or reviews on a platform. A roofer with zero online footprint isn't necessarily a cowboy, but it does make it much harder for you to verify their track record or for them to be held accountable.
The Green Flags — Signs of a Roofer You Can Trust
Now here's what to look for when you're comparing roofers.
They inspect before they quote
A roofer who gives you a price over the phone based on a description hasn't seen the problem. Roof issues often look different once you're up there, and a responsible roofer knows that. A proper inspection before quoting protects you from inaccurate pricing and ensures the quote covers what actually needs doing.
They explain the problem in plain English A good roofer should be able to tell you what's wrong with your roof in language you understand. If they're using technical jargon without explanation, they're either not thinking about you as a customer or they're trying to make the problem sound more complicated than it is. Either way, it's not a good sign.
They provide a detailed written quote Look for a quote that breaks down the work — what's being repaired or replaced, what materials are being used, whether scaffolding is included, and the total cost including VAT. A clear, itemised quote shows confidence in the pricing and gives you something to hold the roofer accountable to.
They carry proper insurance Ask for proof of public liability insurance. A minimum of £2M cover is standard for roofing work. A professional roofer won't be offended by the question — they'll expect it. If anything, they'll respect you for asking.
They offer a meaningful guarantee A guarantee shows that the roofer stands behind their work. Look for a written guarantee that specifies what's covered and for how long. A verbal "we'll come back if there's a problem" isn't worth the air it's spoken into. A proper written guarantee with a named business behind it gives you real protection.
They have reviews from real customers Google reviews, Checkatrade, Trustpilot, or their own website — look for consistent positive feedback from real-sounding customers. Pay attention to what people say about communication, punctuality, tidiness, and whether the final price matched the quote. A handful of detailed 5-star reviews is worth more than hundreds of generic ones.
They use their own team Some roofing companies subcontract work to whoever is available. This means you don't know who's turning up, the quality is inconsistent, and accountability is blurred. A roofer who uses their own employed team has direct control over the work and a personal reputation attached to every job.
Questions to Ask Before Hiring a Roofer
When you've found a roofer that ticks the boxes above, here are the questions worth asking before you commit.
"Are you insured? Can I see your certificate?"
Confirms they carry public liability cover. Don't just take their word for it.
"Will you provide a written quote?" Confirms you'll get a clear, itemised price in writing before any work starts.
"Who will be doing the work?" Confirms whether it's their own team or subcontractors.
"What guarantee do you offer?" Confirms the length and terms of the guarantee, and whether it's in writing.
"What happens if you find something unexpected?" A good answer is: "We stop, explain what we've found, and get your approval before doing anything extra." A bad answer is vague or noncommittal.
"When can you start, and how long will it take?" A reliable roofer will give you a realistic timeline. Be cautious of anyone who can start immediately on a large job — good roofers are usually booked a few days or weeks ahead.
How to Compare Quotes
Getting two or three quotes is sensible for any significant roofing work. But comparing quotes isn't just about picking the cheapest.
Check what's included.
A lower quote might exclude scaffolding, waste removal, or specific materials that the higher quote includes. Compare like for like.
Look at the detail. A one-line quote that says "Roof repair — £800" tells you nothing. A quote that itemises the tile replacement, ridge repointing, flashing repair, and scaffolding gives you confidence that the roofer has properly assessed the job.
Consider the overall experience. How quickly did they respond? Did they inspect the roof properly? Did they explain the problem clearly? Did you feel pressured or informed? The cheapest quote from someone who was vague and rushed is rarely the best value. The slightly higher quote from someone who was thorough, honest, and professional usually is.
Be cautious of quotes that are dramatically cheaper. If one quote is significantly lower than the others, it's worth asking why. They may be cutting corners on materials, planning to skip scaffolding, or not including all the work that's needed. The cheapest price up front often becomes the most expensive in the long run.
A Final Thought
Finding a reliable roofer comes down to trust, and trust is built through transparency. A roofer who inspects before quoting, explains the problem honestly, puts the price in writing, carries proper insurance, uses their own team, and guarantees the work is giving you every reason to trust them.

If they do all of that and still come recommended by your neighbours, you've probably found the right one.
Need a Roofer You Can Trust in Cambridgeshire?
We provide free roof inspections with honest advice and clear written quotes. Joseph inspects every roof personally, we use our own team, we're fully insured with £2M public liability, and every job comes with a 15-year guarantee. The price we quote is the price you pay.
Call now: 01223 420691
Or request a callback and we'll be in touch within 30 minutes during business hours.
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Detailed written quotes, no hidden costs
15-year guarantee on all work
Covering Cambridge, Huntingdon, Ely, Newmarket, Bury St Edmunds, St Neots, and surrounding areas
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