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.
Quick answer: what does it cost?
In Q3 2026, polycarbonate replacement typically costs £2,000–£4,500 in the UK. Across every option on this page prices run from £600 to £15,000. Where you land depends mostly on access, the condition of what is already there, and your region — London and the South East typically add 10–25%.
Conservatory Roof Replacement Cost UK 2026 — Full Price Table
Typical UK prices for Q3 2026, supplied and fitted where relevant. Every quote varies with access, property type and region.
| 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.
Regional Price Variation
Labour rates are the main regional driver, so the same job can differ by a third across the UK. The table below applies typical regional labour weighting to polycarbonate replacement (£2,000–£4,500 at the UK average).
| Region | Typical range | vs UK average |
|---|---|---|
| London | £2,440–£5,490 | +22% vs UK average |
| South East | £2,240–£5,040 | +12% vs UK average |
| East of England | £2,100–£4,725 | +5% vs UK average |
| South West | £2,040–£4,590 | +2% vs UK average |
| Midlands | £2,000–£4,500 | 0% vs UK average |
| North West | £1,920–£4,320 | -4% vs UK average |
| Yorkshire & North East | £1,880–£4,230 | -6% vs UK average |
| Wales | £1,880–£4,230 | -6% vs UK average |
| Scotland | £1,920–£4,320 | -4% vs UK average |
| Northern Ireland | £1,760–£3,960 | -12% vs UK average |
Regional weighting is indicative and reflects labour-rate differences, not material costs, which are broadly national.
What’s Included in a Conservatory Roofing Specialist Quote
A complete quote should cover all of the following. If any line is missing, it is not a cheaper quote — it is an incomplete one, and the gap usually reappears as a variation once work has started.
- 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
What Moves the Price Up or Down
Access
Restricted access, upper floors, scaffolding, or no parking near the property all add labour hours before any work happens. This is the most under-estimated cost on almost every quote.
Region
Labour rates vary 20–30% across the UK. Materials are broadly national, so the more labour-heavy the job, the bigger the regional swing.
Specification
Material grade is the biggest controllable variable, and stepping up one level usually adds less than people expect because the labour is unchanged.
Existing condition
Preparation and remedial work to what is already there is the most common reason a final bill exceeds the headline rate. A survey before quoting protects both sides.
Timing
Emergency and out-of-hours work carries a premium, and weather-dependent trades charge more in peak season. Booking in advance is nearly always cheaper.
Scale
Fixed costs — set-up, access equipment, waste disposal, travel — are spread across the job, so the per-unit rate falls as the job gets bigger.
Five Ways to Bring the Cost Down
- Get three like-for-like quotes. The spread between the highest and lowest quote on the same specified scope is routinely 25–40%. That is the single biggest saving available to you, and it costs nothing.
- Book out of peak season. Weather-dependent trades are busiest spring to early autumn. The same job in the quieter months is often 10–15% cheaper and you will get a faster start date.
- Combine related work into one visit. Set-up, access and travel are charged once. Bundling jobs that need the same access — especially anything requiring scaffold or a tower — avoids paying for it twice.
- Be flexible on materials, not on preparation. Dropping a grade on finish is a legitimate saving. Cutting preparation, disposal or making good is a false economy that costs more within a few years.
- Do the unskilled parts yourself. Clearing the area, moving furniture, and taking waste to the tip are chargeable hours you can remove. Agree exactly what you are doing before the quote is finalised.
How to Choose the Right Conservatory Roofing Specialist
Price is the easiest thing to compare and the least useful on its own. Before you accept a quote, check:
- Public liability insurance — ask for the certificate, not just a claim that they have it, and check it is in date.
- Relevant registration or accreditation for the trade, where one exists, and that it covers the specific work you need.
- Recent, verifiable work — ask for two addresses from the last six months, and follow them up.
- A written, itemised quote with scope, materials, timescale, payment stages and what is excluded.
- A workmanship guarantee in writing, and clarity on who honours it if the firm ceases trading.
Do You Need Building Regulations or Planning Permission
This is the part that catches people out. A conservatory is exempt from building regulations only while it keeps its lightweight, mostly-glazed character. Change that and the exemption can fall away:
- Glass-for-glass or polycarbonate-for-glass replacement is generally treated as repair and needs no approval.
- A solid or tiled replacement roof turns the room into more of an extension. Most building control bodies want it signed off for structural load, thermal performance and condensation risk. A good installer builds this into the quote.
- Planning permission is rarely needed for a like-for-like roof, but can apply in conservation areas, on listed buildings, or where the ridge height increases noticeably.
Before you sign, ask the installer in writing whether the work will be certified under building regulations and who arranges it. Our conservatory planning guide covers where permission does apply.
What changes a conservatory roof replacement quote the most
What you replace it with is the biggest choice. Swapping tired polycarbonate for modern glass is the cheapest upgrade and transforms the light; a lightweight tiled or solid warm roof costs more but turns a too-hot, too-cold conservatory into a room you can use all year, and it is the option most people are really after.
The existing structure decides whether it is simple. A solid or tiled roof is heavier than glass or polycarbonate, so the frames and base have to be checked to carry it — sometimes reinforced, occasionally rebuilt — and that structural check is what separates a straightforward reroof from a bigger job. A building notice and sign-off are usually needed for a solid roof, unlike a like-for-like glazing swap.
Size, pitch and access then scale the labour. If the conservatory itself is past saving, compare a reroof against the cost of a small extension, because the numbers can be closer than you expect — the conservatory cost guide is the one to weigh it against.
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.
Three is the sweet spot. One gives you no benchmark, two leaves you guessing when they disagree, and beyond three you are usually just delaying the job. Make sure all three are quoting the same scope — a cheap quote that excludes preparation, disposal or making good is not actually cheaper.
Ranges on this page are what a homeowner typically pays. Sole traders below the VAT registration threshold do not charge VAT; VAT-registered firms add 20%. Certain works — some energy-saving measures, and renovations of properties empty for over two years — can qualify for a reduced rate, so ask if you think you qualify.
Usually three reasons: different scope (what preparation and making good is included), different materials, and how busy the trade is — a firm with a full order book prices high because they do not need the work. Always compare the written scope line by line, not just the total.
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