Conservatory Roof Replacement Cost Calculator 2026
Instantly estimate the cost of replacing your conservatory roof with solid tiled, glass, or polycarbonate materials. Updated for 2026 UK prices.
Conservatory Roof Details
Enter your dimensions and material preferences to calculate costs
Solid tiled roofs offer the best insulation, while polycarbonate is the most affordable.
Labor costs are typically 15% higher in London and the South East.
Replacement Cost Estimate
Breakdown of materials, labor, and total project cost
Enter your conservatory dimensions and material preferences above, then click Calculate Cost to see your estimate.
Average Conservatory Roof Replacement Costs
Estimated total costs for standard conservatory sizes in the UK, including materials, labor, and VAT. Prices vary based on specification and location.
| Conservatory Size | Polycarbonate | Glass | Solid Tiled |
|---|---|---|---|
| 9m² (e.g., 3m x 3m) | £2,100 | £3,450 | £5,250 |
| 12m² (e.g., 4m x 3m) | £2,700 | £4,500 | £6,900 |
| 16m² (e.g., 4m x 4m) | £3,500 | £5,900 | £9,100 |
| 20m² (e.g., 5m x 4m) | £4,300 | £7,300 | £11,300 |
| 25m² (e.g., 5m x 5m) | £5,300 | £9,000 | £14,000 |
Conservatory Roof Replacement FAQ
Everything you need to know about upgrading your conservatory roof, from planning permission to material choices.
In 2026, the average cost to replace a conservatory roof in the UK ranges from £2,000 to £11,000. A polycarbonate roof typically costs between £180 and £250 per m², a glass roof costs between £300 and £450 per m², and a solid tiled roof costs between £450 and £650 per m². The final price depends on the size, materials, and your location.
The best type of roof depends on your needs. Solid tiled roofs are the most thermally efficient and make the conservatory feel like a true extension of your home. Glass roofs are ideal if you want to maximise natural light and maintain a traditional conservatory feel. Polycarbonate roofs are the most budget-friendly option but offer the least insulation.
In most cases, replacing a conservatory roof with a solid tiled roof does not require planning permission, as it falls under Permitted Development rights. However, if you live in a listed building, a conservation area, or an Area of Outstanding Natural Beauty (AONB), you will likely need to apply for planning permission.
A standard conservatory roof replacement typically takes between 2 to 4 days. A polycarbonate or glass roof can often be completed in 1 to 2 days, while a solid tiled roof may take 3 to 4 days due to the additional structural work and plastering required for the interior ceiling.
Yes, replacing an old or leaking conservatory roof with a modern, thermally efficient solid tiled or glass roof can add value to your home. It improves the energy efficiency of the property, reduces noise, and makes the space usable all year round, which is highly attractive to potential buyers.