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Replace fascia & soffit.
Whole-house uPVC fascia and soffit replacement — scaffolded, vented and finished with bargeboards.
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Hiring a guttering, without the regret.
Four moves that separate a smooth job from a nightmare.
Hidden rafter rot
The last 50–100mm of rafter often rots inside the fascia. Replace or sister-on a new rafter end.
No ventilation
Old soffits often have no airflow. Modern requirement is 10mm continuous vent — fit before re-closing.
Capping over rotten boards
Some cheap contractors fit uPVC over existing rotten timber. It looks fine for a year, then sags as the rot continues underneath.
Wrong colour match
White uPVC against a rendered house yellows over time. Caramel and anthracite hold their colour better.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
uPVC fascia per metreWhite or coloured
£10–£22
uPVC soffit per metrePlain or vented
£8–£18
Composite/cladded fascia per metreHeritage-look options
£22–£50
Hardwood fascia per metrePainted on site
£20–£50
Install labour, semi2–4 days
£800–£1.8k
Install labour, detached4–6 days
£1.5k–£3.5k
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
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Guttering explained
Fascia and soffit boards close the eaves of the roof — the fascia is the vertical board behind the gutter, the soffit is the horizontal board underneath. Rotten fascia is the #1 reason guttering sags or pulls away from the building. Expect to pay £1,200–£3,500 for a UK fascia and soffit replacement, typically alongside guttering renewal.
What Does the Work Invovle?
The roofer removes the existing gutters, prises the old fascia and soffit boards off the rafter ends, inspects the rafters and roof felt for rot and damp (replacing the last few millimetres of rotten rafter with sister pieces if needed), fits new soffit board with vent strips for roof ventilation, fits new fascia mechanically fixed through the rafter ends, re-fits gutter brackets, hangs new gutters and downpipes. Edge dressings and roofline trim finish the job.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| uPVC fascia per metre | 10 | 22 | White or coloured |
| uPVC soffit per metre | 8 | 18 | Plain or vented |
| Composite/cladded fascia per metre | 22 | 50 | Heritage-look options |
| Hardwood fascia per metre | 20 | 50 | Painted on site |
| Install labour, semi | 800 | 1,800 | 2–4 days |
| Install labour, detached | 1,500 | 3,500 | 4–6 days |
| Rafter end repair | 50 | 200 | Per rafter, if rot found |
| Scaffold hire | 400 | 1,200 | 5–7 days |
How Long Does It Take?
Semi-detached: 2–4 days. Detached: 4–6 days. Plus scaffolding which is usually erected for 5–7 days for safety regulations during the work.
DIY or Professional?
Professional only. The work is at height, rafter end inspection requires experience, and uPVC roofline systems have specific clip and trim arrangements that catch out DIYers. A botched job leaves water tracking into the loft.
Choosing the Right Tradesperson
Use a roofer or specialist roofline contractor. Ask the warranty period — 10 years on uPVC is standard. Insist on through-vent soffit (continuous 10mm vent strip) for adequate roof ventilation. Get the price for scaffold included so it isn't a surprise extra.
UK Regulations
Roof ventilation requirements apply: Approved Document Part C and F require eaves ventilation equivalent to a 10mm continuous strip per side. New soffit must include this. Listed buildings need consent if the appearance changes. Insulation and ventilation work near the soffit may need building control sign-off if part of a wider works.
Common Problems
- Hidden rafter rot: The last 50–100mm of rafter often rots inside the fascia. Replace or sister-on a new rafter end.
- No ventilation: Old soffits often have no airflow. Modern requirement is 10mm continuous vent — fit before re-closing.
- Capping over rotten boards: Some cheap contractors fit uPVC over existing rotten timber. It looks fine for a year, then sags as the rot continues underneath.
- Wrong colour match: White uPVC against a rendered house yellows over time. Caramel and anthracite hold their colour better.
Frequently Asked Questions
Should I replace fascia and gutters together?
Almost always yes — they share the same access and scaffolding cost. Doing them separately doubles the access cost and the new gutters depend on sound fascia.
uPVC or hardwood fascia?
uPVC for low maintenance (no painting, 20–25 year life). Hardwood for heritage look — needs repainting every 5–7 years. uPVC is the default on most modern UK homes.
How do I know if my fascia is rotten?
Soft spots when pressed with a screwdriver. Peeling paint over a stain. Sagging gutter (indicates the bracket fixings have failed in soft timber). Visible green algae or black mould.
Will replacing fascia mean lifting tiles?
No — the existing tiles overhang the fascia. New fascia goes in under the existing tiles. If rafter ends need replacement, two tiles per rafter may need lifting temporarily.
Do I need ventilation in the soffit?
Yes — Part F of Building Regs requires it for any roof with insulation at ceiling level (which is most pitched roofs). Continuous 10mm vent strip is standard.
Can fascia be capped (overclad) instead of replaced?
Only if the underlying timber is sound. Capping rotten fascia hides the problem and lets it worsen. Most reputable roofers refuse to cap on principle.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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