It is one of the most common questions homeowners ask us, and one of the most important: should you pay a roofer upfront? The honest answer is that a deposit is normal — but the size, the timing, and the paperwork around it are what separate a legitimate business from a cowboy roofer.
Here is how roofing payments normally work in the UK, what is fair, and the red flags that should make you walk away.
Why roofers ask for deposits at all
Roofing materials are expensive, and they are ordered specifically for your job. A re-roof might need £2,000–£4,000 of tiles, membrane, battens, and lead before anyone climbs a ladder. The deposit covers those materials so the roofer is not out of pocket if a customer cancels after the order is placed. For small repairs — a slipped tile, a flashing fix — most reputable firms ask for nothing upfront at all.
So a deposit is not, by itself, a warning sign. It is a normal part of how the trade works. The problems start when the deposit is too large, demanded in cash, or paid with no paperwork.
What is a fair deposit?
As a rough guide for London roofing work:
- Small repairs (under £1,000): usually no deposit. You pay when the job is done.
- Medium jobs (£1,000–£5,000): a deposit of around 10–30% is common, mainly to cover materials ordered for your job.
- Large jobs like full re-roofs (£7,000–£15,000+): deposits of 20–30% are standard, sometimes split into stage payments as the work progresses.
Stage payments are often the fairest arrangement on big jobs: a deposit for materials, a payment when the old roof is stripped and the new membrane is on, and the balance when the work is finished and you have inspected it. Every payment should be tied to visible progress.
Payment red flags: when to walk away
Full payment demanded before work starts. This is the biggest red flag in roofing. There is almost no legitimate reason a roofer needs 100% of the money before lifting a tile. The well-known scam pattern is a large upfront payment followed by a half-finished job — or no job at all.
Cash only, no receipt. Paying by bank transfer or card creates a record. Cash does not. A roofer who insists on cash and cannot provide a proper invoice is structuring the deal so you have no proof and no comeback.
The deposit keeps growing. You agree 20%, then on day one they need “a bit more for the skip,” then “a bit more because the materials cost more than expected.” Each request on its own sounds reasonable; together they are how a 20% deposit becomes 80% before the real work begins. Agree the payment schedule in writing before work starts and stick to it.
Pressure to pay immediately. “I need the deposit today or the price goes up.” A legitimate firm will give you the quote in writing and let you take your time. Urgency around payment is about their cash flow, not your roof.
No written terms. Whatever you agree — deposit amount, stage payments, when the balance is due — get it in writing. A text message confirming the arrangement counts, but a proper written quotation with payment terms is better. Our frequently asked questions set out exactly how we handle deposits and payments.
How to protect yourself when paying
- Pay by traceable means. Bank transfer is standard and gives you a record. Avoid cash for anything beyond small sums.
- Get a receipt for every payment. Every deposit and stage payment should be acknowledged in writing, showing the amount, the date, and what it covers.
- Never pay the final balance until you have inspected the work. Walk around the property, check the roofline from the ground, look at the leadwork and verges, and check inside the loft for daylight or debris. A good roofer will walk you through the finished job themselves.
- Hold back a snagging retention on large jobs if you can. Agreeing that the final 5–10% is paid a week or two after completion, once you have had rain to test the roof, is reasonable on major work.
- Check the guarantee paperwork arrives with the final invoice. Your written guarantee should be part of the handover, not something you have to chase for months.
What if a roofer asks for more money mid-job?
Sometimes genuine extras arise — rotten battens or damaged timbers hidden under the old covering. That is normal, and it is why we recommend asking upfront how extras are handled (it is one of our 15 questions to ask a roofer before you hire).
The rule is simple: no extra work without your written agreement first, priced at rates you have accepted. A roofer who does the extra work and then presents the bill has skipped the step where you get to say yes or no. Do not pay for work you did not agree to.
The bottom line
Paying a roofer upfront is fine when the deposit is proportionate, the terms are written down, and every payment leaves a paper trail. It becomes dangerous when money changes hands in cash, in full, before work starts, with nothing in writing.
If a payment arrangement feels wrong, it probably is — get a second opinion before you transfer anything. And if you would like a clear, written quotation with fair payment terms from a firm you can check out, request a free quote from Victoria Roofing Expert Ltd. We have been family-run in Camden since 1982, and our payment terms are in writing before we start.