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Replace uPVC gutters.
Whole-house uPVC gutter replacement — supplied, fitted with proper fall and joint seal.
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Top tips
Hiring a guttering, without the regret.
Four moves that separate a smooth job from a nightmare.
Sagging gutters
Brackets too far apart (max 800mm centres) or screwed into rotten fascia.
Joint leaks
Rubber seals perish in 15–20 years. Re-seating or replacing the joint solves it.
Wrong fall
Too shallow and water pools; too steep and it overshoots in heavy rain. Aim for 1:600 (e.g. 8mm per 5m run).
Downpipe undersized
A 68mm round handles ~6 m² of roof. Bigger areas need 80mm or twin downpipes.
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 gutter 4m lengthHalf-round, square or ogee
£10–£25
Downpipe 2.5m length68mm round or 65mm square
£10–£25
Brackets, joints, outletsPer fitting
£2–£8
Install labour, semi (full replace)1–2 days, two fitters
£350–£800
Detached house full replace2–3 days, more downpipes
£700–£1.8k
Scaffold tower hireIf scaffolding needed
£80–£250
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
Infographic · VideoThe Guttering briefing.
Infographic
Guttering quick-view
Video guide
Guttering explained
uPVC gutters are the UK's default domestic rainwater system — cheap, light, easy to fit and good for 20–30 years. A full replacement on a typical 3-bed semi runs £450–£1,800 in the UK, including downpipes, fittings, and either ladder or scaffold-tower access.
What Does the Work Involve?
The fitter removes the existing gutters and downpipes, inspects the fascia for rot (replacing where needed), fits new gutter brackets at a 1:600 fall toward the downpipe, clips the new gutter sections in, joins them with rubber-sealed connectors, fits the running outlets and stop-ends, drops the downpipes to the drain, and tests with a hose. Cast-iron systems take longer to remove than uPVC.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| uPVC gutter 4m length | 10 | 25 | Half-round, square or ogee |
| Downpipe 2.5m length | 10 | 25 | 68mm round or 65mm square |
| Brackets, joints, outlets | 2 | 8 | Per fitting |
| Install labour, semi (full replace) | 350 | 800 | 1–2 days, two fitters |
| Detached house full replace | 700 | 1,800 | 2–3 days, more downpipes |
| Scaffold tower hire | 80 | 250 | If scaffolding needed |
| Fascia & soffit make-good | 250 | 900 | If rotten timber found |
How Long Does It Take?
Semi-detached house: 1–2 days. Detached or large house: 2–3 days. Lead time from quote to fit is usually 1–2 weeks in summer, 3–4 in winter when work is in higher demand.
DIY or Professional?
Gutters are accessible to a confident DIYer at ground level — the bracket spacing, fall and joint sealing are all simple. The risks are working at height (most domestic eaves are 4–5m), so a scaffold tower or a tower-trained installer is the right call.
Choosing the Right Tradesperson
Use a guttering contractor or general roofer. Ask for the guarantee period — 10 years is normal on uPVC systems. Confirm whether scaffolding is included. Insist on Floplast, Marshalls or Hunter brand fittings rather than generic — joint failure on cheap fittings is the commonest defect.
UK Regulations
Gutters and downpipes don't need Building Regs notification under standard works. Rainwater must discharge into a soakaway, surface-water drain or combined drain — never onto a neighbour's boundary. Approved Document Part H covers the drainage capacity. Listed buildings often require cast iron rather than uPVC to retain heritage appearance.
Common Problems
- Sagging gutters: Brackets too far apart (max 800mm centres) or screwed into rotten fascia.
- Joint leaks: Rubber seals perish in 15–20 years. Re-seating or replacing the joint solves it.
- Wrong fall: Too shallow and water pools; too steep and it overshoots in heavy rain. Aim for 1:600 (e.g. 8mm per 5m run).
- Downpipe undersized: A 68mm round handles ~6 m² of roof. Bigger areas need 80mm or twin downpipes.
Frequently Asked Questions
How long should uPVC gutters last?
20–30 years for the body. Rubber seals in the joints need replacement at 15–20 years to prevent leaks.
Can I paint uPVC gutters?
Yes — specialist plastic primer and a top coat of acrylic eggshell. Manufacturers don't recommend it and it voids the warranty, but it works for matching black gutter on a re-paint.
Do gutters need cleaning?
Yes — every 6–12 months, especially in autumn. Blocked gutters overflow and stain the rendering or run back into the soffit. Hedgehog brushes inside the gutter cut cleaning frequency.
What's the difference between half-round and ogee?
Half-round is U-shape, cheap, easy to clean. Ogee is the traditional swan-neck profile, looks more period-correct, costs 30% more.
Can I install uPVC gutter onto a Victorian house?
Yes, unless it's listed or in a conservation area. Cast-iron-effect uPVC profiles (Cascade by Brett Martin) look very close to true cast iron from the ground.
How big a gutter do I need?
Domestic semi-detached: 112mm half-round is standard. Large detached or shallow-pitch roofs: 125mm. Industrial buildings: 150mm+ deepflow.
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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