Conservatory roof replacement cost
A solid, tiled or glass replacement roof typically runs from around £2,000 to £15,000+ fitted. Use the calculator for a tailored guide range, then see what really drives the price below.
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How much does it cost to replace a conservatory roof? For a typical mid-sized conservatory in 2026, expect roughly £2,000–£6,500 for polycarbonate, £3,500–£9,500 for solar-control glass, and £6,500–£15,000 for a solid warm roof with a tiled exterior and plastered ceiling. Roof type, size, shape and region move the figure most; a pre-2000 frame or a vaulted ceiling adds to a solid-roof price.
Price basis: these are indicative supply-and-fit ranges, not quotes. Site access, structure, specification, VAT and included fees vary. Read our calculator methodology and assumptions, then compare itemised written quotations.
Cost by roof type
The single biggest factor is the type of roof you choose. Lighter options reuse more of your existing structure and fit in a day or two; a solid warm roof is a full insulated conversion with a plastered ceiling, building-control sign-off and the highest comfort. Typical fitted prices for a mid-sized (around 4m × 4m) conservatory:
| Roof type | Typical installed cost | What you get |
|---|---|---|
| Polycarbonate | £2,000 – £6,500 | Budget like-for-like refresh; still noisy and poor insulation |
| Glass (solar-control) | £3,500 – £9,500 | Maximum light, with self-cleaning, heat-reflective glass |
| Insulated panels | £4,000 – £8,000 | Fast thermal upgrade that slots into the existing frame |
| Lightweight tiled | £5,000 – £12,000 | Warm, quiet, tiled look — a true year-round room |
| Hybrid (solid + glass) | £5,500 – £13,500 | Solid warmth plus glazed panels or a lantern for light |
| Solid warm roof (plastered) | £6,500 – £15,000 | Extension-grade insulation and a plastered vaulted ceiling |
Glass conservatory roof cost
A solar-control glass roof on a mid-sized conservatory typically costs £3,500–£9,500 fitted. The range is wide because glass specification matters: a basic low-emissivity unit sits at the bottom, while self-cleaning, tinted, argon-filled units with a lower U-value push towards the top. Glass is heavier than polycarbonate, so some quotes include frame reinforcement.
Conservatory warm roof cost (solid or tiled)
A warm roof, meaning a solid or lightweight tiled system with the insulation above the structure and a plastered ceiling below, typically costs £5,000–£15,000 fitted. Lightweight tiled systems start lower; a full solid warm roof with a vaulted ceiling, roof windows and building-control fees sits at the top. Compare the named systems in our roof options guide.
Conservatory roof conversion cost
“Conversion” usually means changing a glass or polycarbonate roof to a solid one on the existing frame, so the price is the solid warm roof figure above. Add around £2,000 if the frame is pre-2000 and needs structural goalposts, and check whether the quote includes the building-control application, which is normally required for a conversion.
Cost by conservatory style and size
Bigger conservatories and more complex shapes (more roof facets and valleys) cost more to re-roof. The table below shows typical prices for the most popular upgrade — a solid warm roof— across styles and sizes. Lighter roof types cost less; the calculator estimates a range for your selected size, style and roof type.
| Conservatory style | Small (around 3×3m) | Medium (around 4×4m) | Large (around 5×5m) |
|---|---|---|---|
| Lean-to / sunroom | £6,000 – £8,900 | £8,150 – £12,150 | £10,950 – £16,300 |
| Edwardian / Georgian | £6,050 – £9,050 | £8,300 – £12,350 | £11,150 – £16,600 |
| Victorian (3/5 facet) | £6,150 – £9,200 | £8,500 – £12,650 | £11,450 – £17,050 |
| Gable-fronted | £6,100 – £9,100 | £8,400 – £12,500 | £11,300 – £16,850 |
| P / T / L-shaped | — | £9,000 – £13,350 (5×3.5m) | £11,150 – £16,550 (6×4m) |
What drives the price
- Roof type & size — the material and the roof surface area set the base cost.
- Shape complexity — Victorian and P/T/L-shaped roofs have more facets and valleys, so they usually cost more than a simple lean-to.
- Internal finish — a standard plastered ceiling is included; pine cladding or a vaulted ceiling with exposed beams adds £800–£2,500.
- Roof windows — extra units require glazing, flashing, framing and internal finishing.
- Lighting & electrics — integrated downlights need electrical and ceiling work.
- Structural reinforcement — some older frames need extra support for a solid roof, confirmed by a structural survey.
- Region — labour and overheads vary across the UK (see below).
Regional price differences
Where you live can change labour, travel and access costs. The calculator uses these broad model adjustments:
| Region | Typical price vs UK average |
|---|---|
| Greater London | +25% |
| South-East / Home Counties (Herts, Surrey, Berks) | +15% |
| South-West | +5% |
| Midlands / East Anglia | Baseline |
| North-West / Wales | −5% |
| North-East / Scotland | −10% |
| Northern Ireland | Baseline (limited model data) |
Why can two quotes be so different?
A lower headline price may omit structural work, plastering, electrics, waste, fees, VAT or an insurance-backed guarantee; a higher one may include premium finishes or simply reflect greater overhead. Ask every installer for the same written specification and compare exclusions, payment terms, building-control responsibility and guarantee documents—not just the total.
All figures are September 2026 guide prices for standard site conditions and must be confirmed after a survey. See also our guide to roof options, insulation comparison and building regulations guide.
Helpful answers
Conservatory roof cost — FAQs
How much does it cost to replace a conservatory roof in 2026?
For a typical mid-sized conservatory, expect roughly £2,000–£6,500 for polycarbonate, £3,500–£9,500 for glass, and £6,500–£15,000 for a solid warm (tiled, plastered) roof. The exact price depends on the roof type, your conservatory's size and shape, and your region.
Is replacing the roof cheaper than a new conservatory?
Almost always. Replacing just the roof keeps your existing frames, base and glazing, so it's far less disruptive and typically costs a fraction of demolishing and rebuilding — or of a full brick extension.
Why do quotes vary by thousands of pounds for the same roof?
The written scope may differ: structural reinforcement, access, roof windows, electrics, plastering, building-control fees, waste, VAT and guarantees can all change the total. Installer overheads and regional labour also vary. Compare itemised quotes like for like.
What should an itemised roof quote include?
Ask for the roof system and insulation build-up, structural work, internal finish, electrics, roof windows, scaffolding, waste, building-control responsibility, VAT, payment stages and guarantee terms to be listed. That makes competing quotes easier to compare.
Does a new solid roof add value to my home?
It may make the room more comfortable and useful, but no uplift in property value is guaranteed. Keep the Building Control completion certificate and warranty documents, because a buyer or conveyancer may ask for them.
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