The short answer
Composite and uPVC are both low-maintenance, but they sit at different ends of the market. uPVC is rigid plastic — usually hollow, lightweight and the lowest-cost mainstream cladding — that is wipe-clean and will not rot, but reads as obviously plastic and can fade or look tired over time. Composite blends wood fibre with recycled plastic for a more convincing, textured wood-look board that is heavier, more durable and holds its appearance better, at a higher price. In short: choose uPVC for the lowest cost on a simple job, and composite when you want a more authentic, longer-lasting finish and are willing to pay more. Both contain plastic, so both are combustible and fire rules apply on taller buildings.
uPVC and composite are often compared as the two low-maintenance plastic-based claddings. The difference is mostly cost versus quality of finish.
Composite vs uPVC
- uPVClowest-cost, plastic look
- Compositewood-look, more durable
- Maintenanceboth low / wipe clean
- FadinguPVC more prone
- CostuPVC lower, composite higher
Appearance
Appearance is the clearest divide. uPVC is rigid plastic with a smooth or lightly textured surface; even woodgrain-effect versions read as plastic up close, and the look is functional rather than premium. Composite, made from wood fibre and recycled plastic, has a more natural, textured wood-like surface with deeper colour, particularly on capped boards. If the finished look matters to you, composite is the more convincing of the two. If the cladding is for a shed, soffit or budget job where appearance is secondary, uPVC's plainer look may be perfectly acceptable.
Durability, fading and maintenance
Both are low-maintenance and rot-proof, but they age differently:
- uPVC — wipe-clean and will not rot, but is more prone to fading, yellowing and looking tired over years of UV, and being hollow it can be knocked or cracked more easily. It also cannot be recoated to restore colour.
- Composite — heavier and more solid, with capped boards resisting fading and staining well; it generally holds its appearance and lasts longer.
For day-to-day upkeep both are easy. For keeping its looks over the long term, composite has the edge, which is part of what you pay extra for.
Construction and feel
The two are built differently, which you notice in handling and on the wall. uPVC planks are typically hollow-section, lightweight rigid plastic that clip together over a framework; they are quick and easy to fit, but the hollow construction can feel and sound less solid, and a knock can crack or dent a board. Composite boards are denser and more solid, closer to the weight and feel of timber, and they are fixed with clips or fixings that allow for thermal movement. That extra mass gives composite a more substantial appearance and better resistance to impact, but it also means the supporting framework must be specified for the heavier board, and installation follows the manufacturer's prescriptive fixing guidance. uPVC's lightness is an advantage for speed and simplicity on basic jobs; composite's solidity is part of why it looks and lasts more like real wood.
Cost and value
uPVC is cheaper upfront; composite costs more but can offer better whole-life value through appearance and longevity.
| Factor | uPVC | Composite |
|---|---|---|
| Fitted cost | ~£40–£90/m² | ~£60–£130/m² |
| Look | Plastic | Wood-like, textured |
| Fading | More prone | Resistant (capped) |
| Durability | Lighter, can crack | Heavier, more robust |
| Fire | Combustible | Combustible |
Indicative fitted ranges for guidance only. Sources: Checkatrade and HomeOwners Alliance cost guides.
Whole-life value
Looking beyond the sticker price changes the comparison. uPVC wins clearly on upfront cost, and for a short-to-medium-term, budget-led job that is often the deciding factor. But because uPVC can fade, cannot be re-coated, and tends to have a shorter practical life before it looks tired, a uPVC finish may need replacing sooner. Composite costs more to buy and fit, yet its better colour retention, more solid construction and longer typical life can make it better value over time, especially on a prominent elevation you want to look good for years. Maintenance is low for both, so the difference is mostly longevity and appearance retention rather than upkeep effort. The right call depends on how long you expect the cladding to last and how much the finished look matters: a quick, cheap job leans uPVC, a longer-term quality finish leans composite.
Where each is typically used
The two materials tend to gravitate to different jobs. uPVC is most at home where cost and easy upkeep outweigh appearance — soffits and fascias at the roofline, porches, garages, dormers, garden buildings and sheds, and budget-led re-clads of simple low-rise houses. It pairs naturally with uPVC windows and doors and goes up quickly because it is light and clips together. Composite is chosen where the finished look matters more — prominent house elevations, extensions, garden rooms and feature walls where a convincing wood appearance and longer life justify the higher price. Because composite is denser and heavier, it suits being the main visible finish of a home rather than a hidden detail. There is overlap — both can clad a simple wall — but as a rule of thumb, uPVC earns its place on functional, lower-visibility or budget work, while composite earns its place where the cladding is a feature people will look at for years. Matching the material to the prominence of the job is usually a better guide than price alone.
Which should you choose?
Choose uPVC when the priority is the lowest cost on a simple low-rise job — porches, soffits, garages, garden buildings or a budget re-clad — and appearance is not critical. Choose composite when you want a more convincing wood-look, better durability and colour retention, and are willing to pay more for a finish that lasts. Both are plastic-based and therefore combustible, so neither is suitable where non-combustible cladding is required; on flats, taller buildings or homes near a boundary, check the fire requirements and each product's classification. All installation must meet Building Regulations. For most homeowners the decision is simply how much the finished look and longevity are worth against the lower upfront price of uPVC.
Frequently asked questions
Is composite cladding worth the extra over uPVC?
If appearance and longevity matter, yes — composite looks more like real wood, resists fading better and tends to last longer. If you only need a cheap, functional, low-maintenance finish on a simple building, uPVC does the job for less. It comes down to how much the better finish is worth to you.
Does uPVC or composite fade more?
uPVC is generally more prone to fading and yellowing over years of UV exposure, and it cannot be recoated to restore colour. Capped composite boards resist fading much better, with most colour change happening early and then stabilising. For long-term colour retention, composite is the stronger option.
Are composite and uPVC cladding fireproof?
No. Both contain plastic and are combustible, so neither is fireproof or non-combustible. Some composites carry a stated reaction-to-fire classification, but on flats or taller buildings you may need a non-combustible material. Always check each product's certified rating and the rules for your building.
Sources & further reading
Figures on this page are typical UK ranges drawn from published sources and depend on your specific property. They are guidance, not a quotation.