Finding a Roofer in Caernarfon: What You Need to Know
Your roof is doing a thankless job — keeping the Welsh weather out of your home day after day. When it needs work, you need someone who knows what they're doing, and won't leave you with a half-finished job or dodgy workmanship.
This guide is here to help you find a roofer in Caernarfon who'll do the work properly. We're not here to flog you something; we're here to give you the straight facts so you can make a sensible decision.
Whether you need a full replacement, repairs to slates or tiles, or work on guttering and flashings, knowing what to look for will save you money and stress. Caernarfon gets serious weather — wind, rain, and salt spray from the coast — which puts real pressure on roofs. A good roofer understands local conditions and won't cut corners.
In this guide, we'll walk you through typical costs, what accreditations actually matter, how hiring works in practice, and the questions you should be asking before you sign anything. We'll also cover a few things specific to Caernarfon's housing stock and climate.
Take your time reading through this. A few hours now could save you thousands later.
What You'll Actually Pay for Roofing Work in Caernarfon
Roofing costs depend on what you're having done. Let's be realistic about 2026 prices.
Minor repairs — fixing a few slipped tiles, replacing flashing around a chimney, or patching a small leak — typically run £200–£600 depending on access and severity. If a roofer has to bring in scaffolding or tackle a steep pitch, add another £300–£800 for access equipment.
Guttering and downpipes — a full replacement on a semi-detached house usually costs £1,200–£2,500. Fascia and soffit work alongside this can add £1,000–£2,000. These jobs are often overlooked but critically important in Welsh weather.
Slate or tile re-roofing — this is the big one. A full roof replacement on a three-bedroom semi in North Wales will run £6,000–£12,000 for slate, or £4,500–£8,000 for quality tiles, depending on pitch, size, and complexity. Terraced properties may cost less; larger detached homes significantly more. Removal and disposal of old materials adds 10–15% to the bill.
Flat roofs — replacing a flat roof (common on extensions) costs £3,000–£6,000 for a 40m² area, using modern materials like EPDM or felt with a gravel finish.
Velux windows and roof lights — installation of a single Velux runs £800–£1,500 fitted.
Always get three quotes. Prices vary based on the roofer's overheads, experience, and local demand. Don't automatically go for the cheapest — you're paying for skill and liability, not just materials.
Accreditations That Actually Matter
There's a lot of waffle in the trades about accreditations. Here's what matters when hiring a roofer.
NFRC (National Federation of Roofing Contractors) — This is the main one. NFRC members are vetted, insured, and held to standards. They operate a consumer helpline and have dispute resolution processes. When a roofer says they're NFRC-registered, you can check their membership on the website. This is worth looking for.
RoofCERT — An independent certification body for roofing work. RoofCERT-certified roofers have been assessed on competence and health & safety. It's not as widespread as NFRC but carries real weight. If someone's RoofCERT-accredited, they've passed proper tests.
MASTIC — The trade body for flat roofing specialists. If you're getting a flat roof done, a MASTIC member is a good sign.
Public Liability Insurance — Any roofer should carry minimum £1 million public liability insurance. Ask to see the certificate. If they hedge or say they'll "get back to you," walk away.
Safeguarding & CSCS cards — Roofers should hold Health & Safety certification (CSCS card). It costs them money to maintain, so they take it seriously.
Guarantees and warranties — Reputable roofers offer 5–10 year guarantees on labour and workmanship. Some material suppliers offer extended warranties on slates or tiles. Get this in writing.
Don't be impressed by vague claims like "trusted locally for 20 years." Membership of NFRC or RoofCERT is verifiable and means something.
Roofing Challenges Specific to Caernarfon
Caernarfon's weather and housing stock create specific roofing challenges you should understand.
The town sits on the Menai Strait with exposure to Atlantic weather systems. That means strong winds, driven rain, and salt spray — especially in winter. Roofs here take a battering. Slipped tiles and slates are common, as is damage to flashings around chimneys and valleys. The coastal salt accelerates corrosion of metal fittings and guttering, so you'll see degradation faster than inland.
Much of Caernarfon's housing stock is Victorian and Edwardian — terraced stone cottages and larger Victorian villas. Many still have original slate roofs, which are durable but need specialist knowledge to repair properly. Lime mortar bedding degrades over time in our damp climate. Roofers need to understand traditional construction; modern shortcuts won't work on older properties.
The slate itself — much of it is Welsh slate from local quarries — has character but requires experienced hands. Not every roofer can work with it confidently. Ask whether a roofer has experience with traditional Welsh slate roofing specifically.
Flat roofs on extensions are common on Victorian properties. These are particularly vulnerable to standing water in high rainfall areas. Proper drainage design is critical; cheap installations often fail within 5–10 years.
Find roofers with local experience. They'll understand Caernarfon's specific weather patterns, know what works and what doesn't, and have built relationships with local material suppliers. A roofer who knows the area will spot problems others might miss.
How to Hire a Roofer — The Sensible Way
Getting this right takes a bit of effort upfront but saves grief later.
Start with recommendations. Talk to neighbours, friends, local tradespeople. Word of mouth from someone who's actually used a roofer is gold. Local plumbers and electricians often know good roofers.
Check online directories and local resources. Use besttrades.wales and similar independent directories. Check the roofer's website, social media, and Google reviews — but treat reviews with a pinch of salt. Real patterns emerge: consistent praise for quality, complaints about timekeeping, etc.
Verify credentials. Check NFRC membership directly on their website. Ask for proof of public liability insurance and request references from recent jobs.
Get three quotes. Never hire based on one quote. Three gives you a sense of realistic pricing and lets you compare approaches. Quotes should be detailed — materials, labour, timescale, access arrangements, and cleanup.
Meet them face-to-face. A good roofer will visit, assess the roof properly, and explain what needs doing and why. If they quote over the phone without seeing the work, that's a red flag.
Check the contract. Before work starts, you should have a written agreement stating start date, completion date, total cost, payment schedule, insurance details, and warranty information. Don't hand over cash upfront; agree a staged payment plan tied to progress.
Ask about timescale and disruption. How long will the job take? What happens if weather delays work? Is scaffolding needed? How will they protect your garden and property?
Trust your gut. If a roofer makes you uncomfortable or seems to be rushing, look elsewhere. You're making a significant investment; choose someone you're confident in.
Eight Questions to Ask Before Hiring
These specific questions will help you separate the capable roofers from the cowboys.
1. Are you NFRC-registered or RoofCERT-accredited? And can you prove it? A qualified roofer will have this sorted and can show you verification.
2. How long have you been doing this work, and do you have experience with my type of roof? For slate roofs, traditional properties, or flat roofs, specific experience matters. Don't accept vague answers.
3. Can you provide three references from work completed in the last two years? Not customers from ten years ago. Recent, verifiable jobs.
4. What insurance do you carry, and what's the excess? They should have minimum £1 million public liability. Ask about employers liability if they have staff.
5. What's included in your guarantee, how long is it, and is it insured/backed? A verbal guarantee is worthless. It needs to be written and ideally insured so it's valid if the roofer disappears.
6. How will you manage weather delays and what's your contingency? Bad weather will happen. How do they handle it? Are you liable for time overruns, or is there a reasonable buffer?
7. What payment terms do you expect? Be wary of anyone asking for 100% upfront. Typical is 25–33% on confirmation, 50% halfway, and final payment on completion.
8. Will you be doing the work personally or subcontracting, and if subcontracting, are those workers your direct employees? You need to know who's actually on your roof and that they're insured.