Roofing Advice
How much does a new roof cost in West Sussex?
West Sussex Roofing doesn't publish a fixed price because a new roof's actual cost depends on the specific job — roof shape, size, material, existing timber condition and access all vary property to property. As a general UK market reference, independent cost-guide site MyJobQuote states the average new roof cost around £5,250 in 2026, ranging from roughly £3,250–£3,750 for a standard gabled roof up to £7,500–£12,000 for a mansard roof, though that figure is third-party market data, not a quote for any specific West Sussex property — book a free roof survey for an exact number.
Why there's no single price for a new roof
A full roof installation on a replacement job strips the existing covering back to the rafters, so the true cost is driven by what's underneath as much as by what goes back on top — the condition of the structural timbers, the roof's shape and pitch, and the covering material all vary from one property to the next. As our roof installation page sets out, replacement genuinely means checking and replacing timbers where needed, something a like-for-like repair can never do — and that inspection can only happen once the roof is stripped, which is one reason a fixed published price would be misleading.
Roof shape and size drive the biggest swing in price
According to MyJobQuote's 2026 UK cost guide, the average new roof cost around £5,250, but shape alone moves that figure substantially: a standard gabled roof (no valleys) on a semi-detached property runs roughly £3,250–£3,750, a standard hip roof £4,250–£4,750, and a mansard roof £7,500–£12,000 — reflecting how much extra ridge, hip and valley detailing each shape needs. The same guide notes detached properties generally cost more again than semi-detached ones for the same roof shape, simply because there's more roof area to cover.
Material choice — slate, clay tile or concrete tile
Natural slate is the more expensive covering: MyJobQuote's slate-specific 2026 guide puts the average UK slate roof around £7,800, at roughly £70–£150 per square metre depending on slate type and roof complexity. Concrete tile is the lower-cost option most common on newer West Sussex estates, with clay tile — including the traditional warm Sussex red common on the county's period cottages — sitting between the two and holding its colour longer over decades.
Conservation areas and the South Downs National Park push material choice, and cost, upward
A genuinely West Sussex-specific cost factor: a large share of the towns and villages we cover sit inside a conservation area, the South Downs National Park, or the Chichester Harbour National Landscape, where natural slate, traditional clay tile or even Horsham stone is typically expected over concrete on the older, protected buildings — Arundel's castle-area streets, Petworth's town centre, Lindfield's Grade I and II* buildings, Chichester's cathedral core, Bosham's flint cottages and Amberley's thatched core among them. That's not a cost this business sets — it's a material constraint the local planning designation itself creates, and it applies before scaffolding or access are even factored in.
Access and scaffolding
How easily scaffolding can go up — a tight historic high street in Petworth or Arundel, versus a suburban driveway estate in Crawley, Southwater or Broadbridge Heath — is a genuine, separate cost driver on top of the roof covering itself. Our own free cost-factors tool flags scaffolding as one of the biggest hidden swings in a roofing quote: in the sourced data, chimney leadwork alone roughly doubles in price once scaffold is needed.
What independent UK cost data shows, and how to get an exact figure
MyJobQuote's 2026 data is genuinely useful as a rough UK-wide reference point, but it isn't a quote for a specific West Sussex property, and West Sussex Roofing doesn't publish its own price list — the only way to get a number that actually applies to your roof is a free, no-obligation roof survey, where a local roofer looks at the real shape, material, timber condition and access before giving you an honest figure.
| Cost factor | MyJobQuote 2026 reference range | Relevant West Sussex context |
|---|---|---|
| Roof shape (gabled vs hip vs mansard) | £3,250–£3,750 gabled, £4,250–£4,750 hip, £7,500–£12,000 mansard (semi-detached) | Applies regardless of area — shape alone can more than double the price |
| Roof material | Slate averages around £7,800 (£70–£150/m²); concrete and clay tile generally lower per m² | Conservation-area and South Downs National Park properties (Arundel, Petworth, Lindfield, Chichester, Amberley, Bosham) typically expected to use slate, clay tile or Horsham stone, not concrete |
| Property size | Detached properties cost more than semi-detached or terraced for the same shape | Varies with West Sussex's housing mix — dense coastal terraces (Worthing, Littlehampton, Bognor Regis) vs larger rural detached and farmhouse stock |
| Access / scaffolding | Not broken out separately in MyJobQuote's headline figures | Tight historic high streets (Petworth, Arundel, Steyning) generally need careful scaffolding; suburban estates usually don't |
| Timber condition | Not knowable until the roof is stripped | Only revealed once the existing covering comes off, whatever the property |
Frequently asked questions
Because a new roof's real cost depends on the specific job — shape, size, material, timber condition and access all vary property to property, so a published price list would either be misleadingly generic or wrong for most roofs. A free survey is the only way to get a figure that actually applies to your property.
Generally yes, per MyJobQuote's 2026 data — slate averages around £7,800 versus a lower per-square-metre cost for concrete tile — but the real answer for a specific roof also depends on size, shape and access, not material alone.
It can, because a large share of West Sussex conservation areas and the South Downs National Park typically expect natural slate, clay tile or Horsham stone rather than concrete tile on protected buildings — a material constraint set by the local planning designation, not by us. A local roofer will tell you honestly what applies to your specific property.
There's no single reliable standalone figure, but our free cost-factors tool shows the scale of the swing — on chimney leadwork alone, the difference between scaffold-included and scaffold-extra roughly doubles the price. Always ask whether a quote includes it.
Book a free, no-obligation roof survey — a local roofer will look at your roof's actual shape, material, timber condition and access, and give you an honest, itemised figure. Try the free cost-factors tool first if you want to understand what typically drives the number up or down.
Book a free roof survey
No pressure, no jargon — just an honest look at your roof and a clear answer.