uPVC does not rot and needs no painting, which is why most replacements use it. Timber looks right on a period property and is sometimes required in a conservation area, but it needs repainting every few years to survive. The honest trade-off is maintenance against appearance — and on a listed building the decision may not be yours.
- uPVC is not maintenance-free, just maintenance-light. It still needs washing.
- Quality varies enormously within uPVC. Board thickness and foil finishes matter.
- Timber on a period property is often the right answer and sometimes the required one.
- Capping over timber with uPVC is only acceptable if the timber is sound.
The comparison
| uPVC | Timber | |
|---|---|---|
| Rots? | No | Yes, if the paint fails |
| Painting | None required | Every 3–5 years typically |
| Lifespan | Decades with minimal attention | Decades if maintained; years if not |
| Appearance | Good; can look flat on period property | Correct on older buildings |
| Repairability | Sections replaced | Can be filled, spliced and repainted |
| Cost to install | Lower | Higher |
| Whole-life cost | Lower | Higher, because of repainting |
| Conservation areas | Often restricted | Usually acceptable or required |
| Colour change | Fixed at purchase | Repaint any colour |
| Environmental | Long life, limited recycling | Renewable, but coatings and transport |
On a straightforward post-war house, uPVC is usually the sensible default. On a Victorian or Edwardian property, and particularly in a conservation area, the question deserves more thought than the maintenance argument alone.
Quality differences within uPVC
This matters more than the uPVC-or-timber decision and is almost never discussed, because all white boards look identical on a quote.
Board thickness. Fascia boards come in different thicknesses, and a thin board flexes. Since the gutter hangs off it, flex means brackets working loose over time. The difference in material cost is small and the difference in performance is not.
Full replacement versus cap-over board. A cap-over board is thinner because it is designed to be fixed to existing timber. Using one as a full replacement board, fixed straight to rafter ends, is not what it is for.
Foiled finishes. Woodgrain and coloured boards use a foil laminate. Quality varies considerably in UV stability — a cheap foil on a south-facing elevation can fade or lift within years, and it cannot be repainted.
Fixings. Stainless or polymer-headed fixings at the correct centres. Steel fixings rust and stain the board, which is a permanent mark on a white fascia.
Ventilation. Whether the soffit is a vented board or plain. This is a specification choice with real consequences for the loft.
Ask what thickness and which manufacturer. A contractor who answers specifically is using something they have chosen; one who says "standard uPVC" is using whatever the merchant had.
When timber is the right answer
- Listed buildings, where uPVC will generally not be acceptable and listed building consent is required for changes.
- Conservation areas, where the local authority frequently restricts uPVC on elevations visible from the street.
- Article 4 areas, where permitted development rights covering this have been removed.
- Period properties where appearance matters to you — a moulded timber fascia with a decorative profile has a depth that uPVC does not replicate.
- Matching a neighbour on a semi or terrace where the other half is timber.
- Where profiles are unusual — ornate Victorian bargeboards, deep moulded fascias — which can be reproduced in timber and not in standard uPVC.
If you are in a conservation area, check before ordering rather than after. Enforcement over inappropriate uPVC does happen, and removing newly fitted roofline is an expensive way to learn.
Looking after each
uPVC is maintenance-light rather than maintenance-free. Wash it down annually with warm soapy water, which deals with the green film that otherwise builds on shaded elevations. Avoid abrasive cleaners and solvents, which permanently mark the surface. Check the gutter brackets and joints once a year. That is genuinely all.
Timber needs a repaint cycle, typically every three to five years depending on exposure, and the weather-facing elevation will always need doing first. The critical discipline is repainting before the existing coating fails rather than after — once water gets behind the paint, you are into filling and splicing rather than painting.
The practical consequence worth being honest about: timber only outperforms uPVC if the repainting actually happens. Timber roofline that is not maintained fails faster than anything else on a house, and most of the rotten fascias we replace are timber that was last painted a long time ago.
Aluminium, briefly
Worth mentioning as a third option that gets overlooked.
Aluminium guttering, and to a lesser extent aluminium fascia systems, sit above uPVC in cost and in some respects in performance. Guttering can be formed seamlessly on site, so there are far fewer joints — and joints are where gutters fail. It is stiffer over long runs, handles heat better, and takes a durable powder-coated finish.
On a large property, a long elevation, or a building with heavy tree cover where joints will be tested, the reduced joint count is a genuine argument. On a standard semi it is usually more than the job needs.
It also suits period properties better than uPVC in some cases, with profiles closer to traditional cast iron at a fraction of the weight and maintenance.
What it costs
These are the roofline figures published across this site:
| Job | Typical Coventry guide price | Notes |
|---|---|---|
| Full uPVC fascia, soffit & guttering (semi) | £1,000–£1,500 | Supply & fit |
| Per elevation (fascia + gutter) | £400–£700 | Front or rear |
| Gutter clean & reseal | £80–£200 | Clears blockages, stops overflow |
| Labour | ~£30/hr | Qualified roofline fitter |
Timber sits above these figures on installation and adds a repainting cycle; aluminium guttering sits above uPVC. Over twenty years uPVC is usually the lowest whole-life cost, which is a different question from which is right for the building.
We check the designation before quoting, because on some properties the material choice is not actually yours.
Frequently asked questions
Is uPVC roofline better than timber?
For maintenance, clearly — it does not rot and needs no painting. For appearance on a period property, timber is usually better and sometimes required. The honest framing is that timber only outperforms uPVC if the repainting actually happens, and most of the rotten fascias we replace are timber that was not maintained.
Does uPVC roofline need any maintenance?
Maintenance-light rather than maintenance-free. Wash it annually with warm soapy water to remove the green film that builds on shaded elevations, avoid abrasive cleaners and solvents, and check gutter brackets and joints once a year. That is the whole regime.
Can I use uPVC in a conservation area?
Often not on elevations visible from the street, and never assume. Conservation areas frequently restrict it, Article 4 directions can remove the relevant permitted development rights, and listed buildings need consent for the change. Check with the council before ordering — removing newly fitted roofline is an expensive correction.
What thickness should a uPVC fascia be?
Thicker than the minimum, because the gutter hangs off it and a thin board flexes, working the brackets loose over time. Note also the difference between a full replacement board and a cap-over board — the latter is thinner because it is meant to be fixed to existing timber, not to rafter ends.
Is aluminium guttering worth the extra?
On a long elevation, a large property or anywhere with heavy tree cover, yes — it can be formed seamlessly on site so there are far fewer joints, and joints are where gutters fail. It is also stiffer and handles heat better. On a standard semi it is usually more than the job requires.
How often does timber roofline need painting?
Typically every three to five years, with the weather-facing elevation needing it first. The important discipline is repainting before the existing coating fails rather than after — once water gets behind the paint you are into filling and splicing, and eventually replacement.
Check the designation before the material
On some properties the choice is not yours, and finding out afterwards is expensive. We check before quoting. Free survey.