How to Choose a Roofer in Farnham (Without Getting Stung)

Why This Guide Exists

Roofing is one of the trades cowboys love, for a simple reason: the work is high up where you can’t see it, expensive, and often urgent. A homeowner with water coming through the ceiling is a homeowner in a hurry, and hurried decisions are how people end up paying good money for bad work — or for work that was never needed at all. This guide is written to help Farnham homeowners tell a proper roofer from a chancer, before handing over a penny.

None of it is complicated. A few checks and a bit of healthy scepticism filter out the overwhelming majority of bad operators. The roofers worth hiring will happily meet every point below; the ones who bristle at them are telling you something.

The Warning Signs of a Cowboy Roofer

Some behaviours are near-universal among the roofers you should avoid. If you see these, be very cautious:

• They knocked on your door uninvited. Reputable roofers don’t tout for work door-to-door, and a spike in doorstep callers always follows a storm. "We’re working on a roof down the road and noticed some slipped tiles on yours" is the oldest opening in the book.
• They pressure you to decide now. "This price is only good today" or "we can start this afternoon if you sign now" exists to stop you getting other quotes or thinking it over. A genuine roofer is happy for you to compare.
• They want cash, and a lot of it upfront. Large cash deposits before any materials are on site are a classic warning. Money paid upfront to a cowboy is money gone.
• No written quote. A verbal "it’ll be about a grand" that becomes £3,000 once the scaffold’s up is a well-worn trap. Everything should be in writing before work starts.
• No verifiable address or history. A mobile number and nothing else, a business that appeared last month, or a company that can’t point to real local work — all reasons to pause.

The National Federation of Roofing Contractors requires members to hold minimum public liability insurance and pass technical vetting, while TrustMark is the government-endorsed quality scheme — both give homeowners an independent check on a roofer’s legitimacy.Source: NFRC / TrustMark

The Checks That Actually Matter

Positively, here’s what a trustworthy Farnham roofer will have and be happy to show you:

• Trade accreditation. NFRC (National Federation of Roofing Contractors) membership or TrustMark registration means the roofer has been independently vetted on insurance, standards and financial stability. It’s not a cast-iron guarantee of a perfect job, but it filters out the worst operators.
• Public liability insurance. Ask to see it. If a roofer damages your property or a neighbour’s — or worse, someone is hurt — uninsured work leaves you exposed. Any legitimate roofer carries it and will show you the certificate.
• Three written quotes. Get at least three, itemised, so you can compare like with like. The cheapest is rarely the best value and the dearest isn’t automatically the best either — what you’re looking for is the one that’s clearly costed the actual work.
• Reviews that mention specific jobs. "Great service, highly recommend" tells you little. "Fixed our leaking valley on a Victorian terrace off Hale Road, dry ever since" tells you a lot. Look for detail and local references.
• A written guarantee. Proper roofers guarantee their workmanship — ten years is standard for good ones — and put it in writing. Ask what’s covered and for how long.

Getting and Comparing Quotes

Three written quotes is the homeowner’s single best protection, but only if you compare them properly. Make sure each is quoting for the same scope — one roofer pricing a full valley replacement and another pricing a patch-up aren’t comparable, even though both say "fix the leak". A good quote itemises the work: what’s being done, what materials, whether scaffold is included, and what the guarantee is.

Be wary of the outlier in both directions. A quote far below the others usually means something’s been left out — often the scaffold, the disposal, or the proper fix in favour of a bodge. A quote far above may be padding. The cluster in the middle, from roofers who’ve clearly understood the job, is where the honest price usually sits. And if one roofer has diagnosed the problem differently — spotted that your "leak" is actually a failed flashing, not the tiles everyone else quoted to replace — that’s often the one who actually looked properly.

Farnham-Specific Things to Ask About

Farnham’s housing throws up a few local questions worth asking, because the answers separate roofers who know the area from those who don’t. If you have a period property in or near the conservation areas around The Borough and Castle Street, ask whether they use lime mortar on old brickwork — the right answer is yes, always, and a roofer who’d cheerfully point your Victorian chimney in cement will damage it.

If you’re on one of the post-war estates — Heath End, Badshot Lea, Weybourne — with an ageing concrete-tile roof, ask whether your slipping tiles need a re-nail or a full re-roof; a roofer who reaches straight for the expensive option without explaining nail sickness is worth a second opinion. And on the wooded roads, ask about the state of your valleys and gutters, because in Farnham that’s where a surprising share of "roof leaks" actually start. A roofer who knows Farnham will have views on all of these before you’ve finished asking.

What Happens When It Goes Wrong

It's worth understanding what you're protecting yourself against, because the consequences of hiring badly go beyond a poor finish. A cowboy who takes a deposit and vanishes leaves you out of pocket with the original problem unsolved. One who does the work badly leaves you worse off than before — a bodged flashing that funnels water into the wall, a re-roof with reused battens that fails BS 5534, cement pointing that spalls your Victorian brickwork. Uninsured work that damages a neighbour's property can land the bill on you. And because roofing sits high and out of sight, bad work often isn't discovered until it fails, by which time the roofer is long gone and any "guarantee" is worthless.

This is exactly why the upfront checks matter so much. The few minutes it takes to ask for an insurance certificate, get the quote in writing, and read reviews for specific local detail are trivial against the cost of getting it wrong. If a roofer makes those checks difficult — can't show insurance, won't put it in writing, gets defensive when you mention getting other quotes — that resistance is itself the answer. A roofer confident in their work has nothing to hide from a careful homeowner.

A Simple Checklist Before You Commit

Before you sign anything or pay a penny, run through this short list. Have you got at least three written, itemised quotes for the same scope of work? Have you seen or confirmed the roofer's public liability insurance? Have you checked for NFRC or TrustMark membership? Have you read reviews that mention specific, verifiable jobs rather than vague praise? Is the guarantee in writing, with its length and coverage clear? And are you free of any pressure to decide on the spot? If you can answer yes to all six, you've filtered out almost every operator worth avoiding.

One final point specific to Farnham: a good local roofer is worth more than a cheaper distant one, because they'll be here for the guarantee, they know the town's housing and its quirks, and their local reputation is on the line with every job. When water's coming through your ceiling, the roofer who's ten minutes away and wants to keep their name good in the area is the one you want — not a number that stops answering once the cheque clears.

Frequently Asked Questions

Last reviewed: 12 September 2026