How to Price Fascia, Soffit and Guttering Replacement: Linear Metres, Access and Waste

Quick Answer: A full UPVC fascia, soffit and guttering replacement on a typical 3-bed semi (30-40 linear metres of eaves) prices at £1,200-£2,400 supplied and fitted, taking 2-4 days. Capping over sound timber is cheaper at £600-£1,200 but voids most manufacturers' insurance-backed guarantees. All work above 2m must comply with the Work at Height Regulations 2005, and rainwater goods discharge must satisfy Building Regulations Part H 2002 (Drainage and Waste Disposal).

Summary

Fascia, soffit and guttering (collectively "rainwater goods and eaves trim") is one of the most-quoted exterior jobs in UK domestic roofing. The market split is roughly 70% UPVC replacement, 20% capping over existing timber, and 10% timber renewal. For most installers it is a high-frequency, repeatable job — but it is also where homeowners most often shop on price alone, which means undercutting is endemic and margins are squeezed.

Pricing is dominated by three factors: linear metres of run, access method (ladder, tower or scaffold), and waste disposal. Add-ons like bargeboards, downpipes, soffit ventilation upgrades and lead flashing repairs are where margin recovers. Capping is a tempting fast-money option, but most reputable installers refuse to cap over visibly damaged or wet timber — once the new UPVC is screwed on, hidden rot continues underneath and the customer comes back inside 5 years.

This guide covers UPVC and timber, capping versus full replacement, access options, and the regulatory framework. For roof-edge detailing see scaffolding pricing guide for access pricing and the underlying scaffold logic.

Key Facts

• Typical 3-bed semi eaves run — 30-40 linear metres (front + back), excluding gable bargeboards
• Typical 3-bed detached eaves run — 40-55 linear metres
• UPVC fascia (16mm or 18mm replacement-grade) — £18-£35 per linear metre supplied and fitted
• UPVC soffit (10mm hollow or 9mm solid) — £14-£28 per linear metre supplied and fitted
• UPVC bargeboard — £22-£38 per linear metre supplied and fitted (steeper pitch, more cuts)
• Half-round gutter (UPVC, 112mm) — £8-£14 per linear metre supplied and fitted
• Square gutter (UPVC, 114mm) — £9-£16 per linear metre supplied and fitted
• Deep flow / ogee gutter — £14-£24 per linear metre (higher capacity, large roofs)
• Cast aluminium gutter — £35-£70 per linear metre supplied and fitted (heritage / conservation)
• UPVC downpipe (68mm round) — £9-£15 per linear metre supplied and fitted including clips
• Cast aluminium downpipe — £45-£80 per linear metre
• Soffit ventilation (10mm continuous vent strip) — £4-£8 per linear metre supplied
• Over-fascia vent — £6-£11 per linear metre as alternative to soffit vent
• Replacement felt eaves protector — £3-£6 per linear metre
• Tower hire (alloy, 4m platform height) — £80-£130 per week
• Scaffold hire (3-bed semi, two elevations) — £600-£1,400 for 1-2 weeks
• Skip hire (4-yard) — £180-£280 plus permit £25-£60 if on highway
• Carpenter / roofer day rate — £180-£280 regional, £260-£380 London
• Labourer day rate — £130-£190 regional
• Productivity (UPVC full replacement) — 12-18 linear metres per fitter-day
• Productivity (capping over timber) — 18-25 linear metres per fitter-day
• VAT — 20% standard rate; reduced 5% rate may apply on energy-related repairs to dwellings >2 years old where soffit ventilation is upgraded as part of an energy efficiency measure

Quick Reference Table

Detailed Guidance

UPVC vs Timber vs Cast Aluminium

UPVC dominates the modern replacement market. It does not rot, is paint-free for 20+ years, and is roughly half the installed cost of timber for the same span. Timber survives in three scenarios: conservation areas where UPVC is prohibited by planning, listed buildings, and high-end conservation-grade renewals. Timber requires repainting every 5-7 years and is sensitive to back-priming and end-grain sealing.

Cast aluminium and cast iron are a small but high-margin slice of the market. They are specified on listed buildings, by sympathetic restoration clients, and on commercial buildings with very long maintenance cycles. Cast iron itself is now rare in new installs (heavy, prone to corrosion at joints) — cast aluminium has largely replaced it, with the same period look but a 25-30 year service life and no risk of bursting in freeze conditions.

Capping vs Full Replacement

"Capping" is the practice of screwing a UPVC cover board over existing sound timber fascia, replacing the gutter, and over-cladding the timber soffit with a UPVC soffit board. The timber stays in place. Done correctly on dry, sound timber, it is a legitimate technique with a 15-20 year service life.

Done incorrectly — over wet, soft or rotting timber — it traps moisture and accelerates rot. The customer comes back inside 5 years with the new UPVC bulging where the timber underneath has collapsed. Many reputable installers refuse to cap because the lifespan is determined entirely by what is hidden underneath, and the installer carries the warranty regardless.

Decision framework:

Timber sound, dry, no soft spots?
 ├─ Yes → Capping is acceptable (cheaper, faster)
 └─ No → Full replacement required
     │
     └─ Strip back to rafters?
         ├─ Rafter ends rotten → Splice repair £80-£200 per rafter end + sister joist
         └─ Rafter ends sound → New 18mm UPVC fascia direct to rafter

Insurance-backed guarantees (IBGs) from FENSA, GGF or HomePro typically void on capped installs unless specifically endorsed. Quote full replacement as the default; offer capping as the explicit cheaper option with stated lifespan trade-off.

Half Round vs Square Gutter

Half-round (112mm) is the traditional UK domestic profile, suiting most pitched roofs up to about 80m² catchment per downpipe. Square (114mm) profile has a slightly higher capacity but is more prone to leaf and moss blockage at the angled corners. Deep-flow or ogee profiles are specified for larger catchments — typically 4-bed detached, or roofs with valley discharge.

Sizing is governed by BS EN 12056-3:2000 (Gravity drainage systems inside buildings — Roof drainage). The relevant calculation is catchment area × design rainfall intensity × runoff coefficient. For domestic UK pitched roofs, the working rule is: one 68mm downpipe per 70-90m² of roof plan area on standard 112mm half-round. Larger roofs need a second downpipe or upgrade to deep-flow.

Bargeboards

Bargeboards seal the gable ends of a pitched roof. They are typically 22mm UPVC, screwed to the verge through a starter trim. Replacement is independent of eaves fascia and is often quoted separately — the access is at the gable apex, which usually needs a tower or scaffold rather than ladders.

Bargeboards on a steep pitch (>40 degrees) require more cuts and longer board lengths. Pricing typically £22-£38 per linear metre supplied and fitted, with a minimum charge for half-day mobilisation.

Downpipes

Standard 68mm round UPVC downpipe is £9-£15 per linear metre supplied and fitted including pipe clips. Square 65mm × 65mm is a similar price. Most 3-bed semis have 2 downpipes (front and back); detached often 3-4. Where the downpipe terminates into a back-inlet gully, allow £40-£80 for a new gully or a shoe-and-paving termination.

Downpipe discharge must satisfy Building Regulations Part H 2002 — typically to a soakaway, surface water drain or combined sewer. Discharge to the ground or onto a flower bed is non-compliant on a new install. Most retrofit jobs preserve the existing discharge route, but if the existing termination is non-compliant, flag it in the quote.

Soffit Ventilation

Soffit ventilation is non-negotiable on a tiled or slated pitched roof with a cold roof construction. Building Regulations Part C (Site preparation and resistance to contaminants and moisture) and Part F (Ventilation) together require continuous ventilation at the eaves equivalent to a 10mm continuous opening on roofs with a pitch over 15 degrees, and 25mm continuous opening on roofs under 15 degrees, with cross-ventilation at the ridge or high level.

In practice this means specifying ventilated soffit board (10mm continuous slot vent or perforated soffit) or over-fascia vents. A non-ventilated soffit on a cold roof creates condensation in the loft, ruins insulation, and grows mould on rafter ends.

When capping, check whether the existing soffit is ventilated. If not, this is the moment to upgrade — adding over-fascia vents costs £6-£11 per linear metre and is a small line item compared to the cost of returning to fix condensation damage later.

Lead Flashings and Abutments

Where the eaves meet a chimney, dormer cheek or adjoining wall, there will usually be lead flashings. These are part of roof repair pricing guide but routinely come up on fascia jobs because the flashings sit on top of the eaves trim.

If lead is intact, dress back into position. If it is split, brittle (zinc oxidation), or wrongly lapped, price replacement: code 4 lead at £18-£28 per linear metre supplied and fitted, code 5 at £24-£35 per linear metre. Quote separately so the customer sees lead is not in the base fascia price.

Access — Ladders, Towers and Scaffold

Work at height drives both cost and safety on fascia work. Work at Height Regulations 2005 require a hierarchy: avoid working at height, use existing safe place of work, use work equipment to prevent falls, use work equipment to minimise the consequences of a fall.

In practice:

• Single-storey extension or bungalow eaves (<3m) — ladders with stabilisers are usually acceptable; brief job, single fitter.
• Two-storey eaves (3-6m) — alloy tower (Boss, Lyte, Youngman) for 1-2 elevations; tower hire £80-£130 per week. Most reputable installers do not work fascia from ladders at this height.
• Two-storey with gable + bargeboards — full edge scaffold to gable. £600-£1,400 for a 3-bed semi for 1-2 weeks.
• Three-storey or complex roof — full perimeter scaffold mandatory. £1,400-£3,000.

A common pricing trap: quoting fascia from ladders to win the job, then discovering on day one the customer's drive blocks ladder footing, or the gable end can't be reached, or the eaves height exceeds HSE guidance. Always survey before quoting on anything above single-storey.

Waste Disposal

A 3-bed semi fascia/soffit/gutter strip-out produces roughly 0.4-0.8 cubic metres of waste: old timber (some painted, treat as construction waste), old UPVC, old metal gutter brackets, lead clips. A 4-yard skip (3 cubic metre capacity) is the standard size — £180-£280 plus a highway permit £25-£60 if not on private ground.

Asbestos cement gutters or soffits are an occasional surprise on pre-1985 housing. Stop work, do not break, and price asbestos removal separately per asbestos removal pricing guide. Cement-fibre soffit boards are not always obvious — if in doubt, take a sample for testing before disturbing.

BS 6229 and Flat Roof Eaves

BS 6229:2018 (Flat roofs with continuously supported flexible waterproof coverings) governs eaves detail on flat roofs — typically rear extensions, garage roofs and dormer flats. The eaves trim must provide a drip 25mm minimum projection from the wall face, with a continuous bond into the waterproofing membrane.

Replacing fascia on a flat-roofed extension is more complex than a pitched roof because the membrane edge bond is disturbed. Price for re-bonding the membrane (typically EPDM, felt or single-ply) edge into the new trim, or hand the membrane work to a roofer.

Worked Example — 3-Bed Semi Full UPVC Replacement, Regional

This is a comprehensive full replacement at the upper end of the typical 3-bed semi bracket; a smaller, simpler property would run £1,800-£2,400.

Frequently Asked Questions

Do I need planning permission to replace fascia and gutter?

No, not in normal circumstances. Replacement of rainwater goods is a repair under the Town and Country Planning (General Permitted Development) (England) Order 2015 and does not require planning consent. Exceptions: listed buildings (Listed Building Consent required), conservation areas (check with the local planning authority, as material changes from timber to UPVC are often controlled by Article 4 Direction), and properties where a planning condition specifically restricts changes.

How long does UPVC fascia last?

Quality UPVC fascia from a reputable manufacturer (Eurocell, Freefoam, Marley) carries a 10-year guarantee and a typical service life of 20-30 years. UV stabilisation and pigment quality matter — cheap unbranded board can yellow or warp within 5-7 years. Insurance-backed guarantees (FENSA, GGF, HomePro) extend cover to 10 years against installer insolvency.

Should I cap over existing timber or strip everything off?

Cap if the timber is sound, dry, and accessible for inspection. Strip if the timber shows soft spots, water staining, paint flaking from underneath, or visible rot. Always look in the loft from the inside at the rafter ends — if they are dark, stained or soft, strip. The cost difference is £400-£700 on a 3-bed semi and the lifespan difference is 5+ years.

Do I need to ventilate the soffit?

Yes, on any pitched roof with a cold roof construction. Building Regulations Part C and Part F together require continuous ventilation at the eaves equivalent to a 10mm continuous opening on roofs over 15 degrees pitch, and 25mm continuous opening on roofs under 15 degrees pitch. Use ventilated soffit board or over-fascia vents.

Can I leave the existing felt eaves protector in place?

If it is intact and projects correctly into the gutter line, yes. If it is torn, brittle or has retracted up the rafter, replace it. A new felt eaves protector (or modern alternative like an eaves vent tray) costs £3-£6 per linear metre and is essential to prevent water tracking back under the tile and rotting the new fascia.

What's the difference between half-round and square gutter?

Half-round (112mm) is the traditional UK profile and is the default for most domestic pitched roofs. Square (114mm) has marginally higher capacity but more angled corners that trap leaves and moss. Both are interchangeable on standard fascia bracket spacing. For larger roofs (>80m² per downpipe), specify deep-flow or ogee profiles per BS EN 12056-3.

Regulations & Standards

• Work at Height Regulations 2005 — all work above 2m requires risk assessment and hierarchy of controls

• Building Regulations 2010 — Part C (Site preparation and resistance to contaminants and moisture), Part F (Ventilation), Part H (Drainage and waste disposal), Part L (Conservation of fuel and power where ventilation upgrade affects performance)

• BS EN 12056-3:2000 — Gravity drainage systems inside buildings, roof drainage layout and calculation

• BS 6229:2018 — Flat roofs with continuously supported flexible waterproof coverings

• BS 5534:2014+A2:2018 — Code of practice for slating and tiling (eaves detail, ventilation requirements)

• BS EN 607:2004 — Eaves gutters and fittings, dimensions

• Construction (Design and Management) Regulations 2015 — CDM 2015 applies to domestic work where notifiable (>30 days or 500 person-days)

• WEEE Regulations 2013 — disposal of any electrical eaves equipment (rare on standard installs)

• Control of Asbestos Regulations 2012 — pre-1985 cement-fibre soffits or gutters must be tested before disturbance

• FENSA / Competent Person Schemes — installer self-certification (where applicable to associated glazing work)

• Approved Document C — Site preparation and resistance to contaminants and moisture

• Approved Document F — Ventilation

• Approved Document H — Drainage and waste disposal

• HSE — Work at Height Regulations 2005

• NFRC — National Federation of Roofing Contractors — trade body, technical bulletins

• GGF — Glass and Glazing Federation — installer accreditation and IBG schemes

• BSI — BS 5534 and BS EN 12056-3

• scaffolding pricing guide — access pricing for two-storey and gable work

• asbestos removal pricing guide — pre-1985 cement-fibre soffit identification

• damp proofing pricing guide — penetrating damp from failed rainwater goods

• loft conversion pricing guide — eaves detail when converting loft space

• boiler installation pricing guide — flue plume management at eaves level