Conservatory Roof Replacement Cost UK 2026
Replacing a tired polycarbonate roof is the single most effective way to make a conservatory usable all year. In Q3 2026 a solid tiled replacement roof costs about £6,000–£15,000 depending on size, a modern glass roof £3,500–£8,000, and a like-for-like polycarbonate swap £2,000–£4,500.
Conservatory Roof Replacement Cost UK 2026 — Price Table
Typical UK prices for Q3 2026, supplied and fitted where relevant. Every quote varies with access, property type and region — London and the South East typically add 10–25%.
| Item | Typical cost | Notes |
|---|---|---|
| Polycarbonate replacement | £2,000–£4,500 | Cheapest; same comfort problems remain |
| Glass (self-cleaning, solar control) | £3,500–£8,000 | Keeps the light, much better temperature |
| Solid tiled roof — 3x3 m | £6,000–£9,000 | Lightweight tile system on existing frame |
| Solid tiled roof — 4x4 m | £9,000–£13,000 | Usually includes internal plaster finish |
| Solid tiled roof — 5x4 m+ | £12,000–£15,000+ | May need frame or base strengthening |
| Tiled roof with roof windows | add £600–£1,400 each | Restores light lost by going solid |
Indicative Q3 2026 UK market ranges. Confirm the figure for your job with a written quote.
What’s Included in a Conservatory Roofing Specialist Quote
- Survey of the existing frame and base to confirm it will carry the new roof
- Removal and disposal of the old roof panels
- New roof structure, insulation and covering
- Internal plasterboard finish where a solid roof is fitted
- Building control notification and certificate where required
- Guttering, flashings and making good
Always get the scope in writing. Two quotes that look far apart on price are usually not quoting the same work — the difference is normally preparation, disposal or making good.
What Moves the Price Up or Down
Access and location
Restricted access, upper floors, scaffolding or limited parking all add labour time. Regional labour rates vary by 20–30% across the UK, with London and the South East highest.
Specification
Material grade is the biggest controllable variable. Moving one step up the range usually adds far less than people expect, because the labour stays the same.
Condition of what’s there now
Preparation and remedial work to existing fabric is the most common source of a quote coming back higher than the headline rate. A survey before quoting protects both sides.
Timing
Trades price emergency and out-of-hours work at a premium, and peak season is dearer for weather-dependent trades. Booking ahead is usually cheaper.
Conservatory Roof Replacement Cost UK 2026 — FAQs
Usually yes. Swapping a lightweight translucent roof for a solid one changes the structural loading and the thermal performance, so it normally needs building control sign-off — either through your local authority or a competent-person scheme. A reputable installer handles this and gives you the certificate.
Often, but never assume it. Modern tiled systems are designed to be lightweight for this reason, but the surveyor must check the frames, base and any dwarf wall. If strengthening is needed, expect £800–£2,500 on top.
It depends what the room is for. Tiled gives the best insulation and makes the space feel like a proper room, but you lose overhead light unless you add roof windows. Glass keeps the conservatory feel with far better temperature control than old polycarbonate.
Most roof replacements are 2–5 days on site. Solid roofs with an internal plaster finish need a few more days for plastering and drying before decorating.
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