New Roofs & Roof Replacements In Guildford
When Does a Roof Need Replacing
Rather Than Repairing?
Most homeowners don't plan for a new roof. It's rarely a decision made lightly — a full roof replacement is a significant investment, and the last thing you want is to be rushed into it by a roofer who stands to benefit from the bigger job.
At Forged Roofing, we'll always tell you honestly whether your roof genuinely needs replacing or whether targeted repairs will give it another decade of reliable life. We don't upsell. We assess, we advise, and we let you decide with the full picture in front of you.
That said, there are situations where a full replacement is the right call — and the sooner it's addressed, the less additional damage is done to the structure beneath:
- The roof is over 50–60 years old and has reached the end of its serviceable life
- Repairs have become frequent and the cumulative cost is outpacing the value of the roof
- Widespread tile or slate failure rather than isolated slipped or broken units
- The roof felt (the waterproof membrane beneath the tiles) has deteriorated and is no longer doing its job
- Significant timber damage, rot, or structural sagging visible from inside the loft
- You're planning an extension, renovation, or sale and want the roof resolved properly as part of it
- Spray foam insulation has been applied and is causing ongoing issues with moisture and timber health
If you're unsure, give us a call. We'll come out, inspect properly, and give you an honest assessment — no charge, no obligation.
New Roof Options for Guildford Properties — Materials We Install
Guildford's housing stock spans several centuries and architectural styles, each with its own appropriate roofing material. Getting the material choice right matters — both for the longevity of the roof and, in many cases, for planning compliance. Here's what we install:
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Why Guildford Homeowners Choose
Forged Roofing for New Roofs
Do You Need Planning Permission
for a New Roof in Guildford?
This is one of the most common questions we get — and it's an important one, particularly in Guildford where conservation areas and listed buildings are not uncommon.
In most cases, no. A like-for-like roof replacement — same material, same profile, same colour — typically falls under Permitted Development and does not require planning permission for standard residential properties.
However, you may need permission if:
- Your property is in a conservation area — significant parts of central Guildford, Shalford, Godalming, and surrounding villages fall under conservation area designation
- Your property is listed — in which case Listed Building Consent is required for almost any external alteration
- You are changing the roof material to something substantially different in appearance (e.g. replacing natural slate with concrete tiles on a period property in a conservation area)
- You are altering the roof shape, adding dormers, or significantly increasing the roof height
We will advise you on planning requirements as part of our initial assessment. Where there is any doubt, we recommend checking with Guildford Borough Council's planning department before proceeding — and we're happy to assist with that conversation.
We Cover Every
Corner Of Surrey
Forged Roofing operates across the whole of Surrey — from the leafy streets of Guildford and Godalming to the commuter towns of Redhill, Reigate, Epsom, and Woking. Whether you're in Weybridge, Esher, Camberley, Farnham, Dorking, Leatherhead, Oxshott, Cobham, or anywhere in between — we're your local roofer.
Roof Replacing Questions — Guildford Homeowners Ask Us
For a standard three-bedroom semi or terraced property, a full re-roof typically takes three to five days once the scaffolding is in place. Larger properties, complex roof structures, or those requiring significant timber repair work may take longer. We'll give you a realistic timeframe as part of your written quote.
In most cases, no. A roof replacement is noisy and there will be some disruption, but you can usually remain in the property throughout. We'll advise you if anything about your specific project might make temporary relocation advisable — this is rare.
This depends on the material installed. Natural slate correctly installed can last over 100 years. Clay tiles typically last 60–80 years. Concrete tiles have a lifespan of 30–50 years. Modern EPDM flat roofing carries a 50-year lifespan. GRP fibreglass flat roofing typically lasts 25–30 years. In all cases, the quality of the installation and the underlying timber structure significantly affects longevity.
We'll photograph it, explain what we've found, and give you a clear cost for replacing the affected timber before proceeding. We will never carry out additional work without your agreement first. Any timber work required is addressed before the new covering goes on — because a new roof on rotten timbers is not a new roof.
In some cases, yes — particularly where one section has failed while the rest remains in good condition and the materials can be matched. We'll advise honestly on whether a partial replacement is a sensible option for your specific situation or whether a full re-roof represents better long-term value.
All of our new roof installations come with a written workmanship guarantee. The specific terms depend on the materials and system installed — we'll confirm these clearly in your written quote before any work begins.
Yes — and we'd encourage it. Get at least two or three written, itemised quotes and compare them carefully. Make sure you're comparing like for like — the same material grade, the same inclusion of scaffolding, the same standard of ridge and verge finishing. The cheapest quote is rarely the best value, and the difference between a roof done properly and one done on the cheap is measured in decades.
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Ask Us
How Much Does a New Roof
Cost in Guildford?
A full roof replacement is a significant investment and cost varies considerably depending on the size of the property, the roofing material chosen, the condition of the existing timber structure, access requirements, and whether scaffolding is needed.
As a general guide for a standard Guildford semi-detached or terraced property:
- Concrete tile re-roof (3-bed semi): £6,000 — £10,000
- Natural slate re-roof (3-bed semi): £9,000 — £15,000
- Clay tile re-roof (3-bed semi): £8,000 — £13,000
- Fibre cement slate re-roof (3-bed semi): £7,000 — £11,000
- Flat roof replacement (EPDM or GRP, standard garage/extension): £2,000 — £5,000
These are indicative ranges only. Larger detached properties, roofs requiring significant timber work, or complex roof structures with multiple valleys, dormers, or chimney stacks will fall outside these ranges. The only accurate figure is the one based on an inspection of your specific property.
What we can guarantee is this: the quote we give you is fixed. What we quote is what you pay — no surprises on the invoice.
A note on cheap quotes: A new roof that fails in five years is not a bargain — it's a disaster. The cost of a second roof replacement, plus the internal damage caused by a failing roof in the interim, dwarfs any saving made on the original installation. We'd rather lose a job on price than cut corners to win it.
Ready For A New Roof in Guildford?
Let's Talk.
Whether you know your roof needs replacing or you're not yet sure, the first step is a free, honest assessment from a roofer you can trust. No call-out fee, no obligation, no pressure. Just a proper inspection and a clear, fixed price if work is needed.
More Roofing Services We Offer Across Surrey
Whether you've got a single slipped slate or need a full roof replacement, We're the Guildford Roofers that handles it from start to finish — with our own qualified team, not subcontractors.
