Tiled conservatory roof cost
A tiled roof is the one upgrade that turns a conservatory into a room. It is also the one with the most ways to be quoted badly.
Cost by conservatory size
| Conservatory | Roof area | Typical fitted cost |
|---|---|---|
| Small lean-to, 3 x 3m | 9 – 11m² | £6,000 – £10,000 |
| Standard, 3.5 x 4m | 14 – 16m² | £7,500 – £13,000 |
| Large, 4 x 5m | 20 – 24m² | £10,000 – £16,000 |
| Victorian or P-shaped | Varies | Add 15 – 25% |
Shape drives the premium. Every hip, facet and valley on a Victorian roof is cut, formed and sealed individually, where a square lean-to is a straightforward pitched plane.
What the price should include
- Structural survey, £300 to £600. Before anything is ordered.
- Strip out and disposal of the old glazing and glazing bars.
- The new roof structure: engineered timber or an aluminium system sized for the load and the span.
- Insulation to current standards, which is what the building regs application turns on.
- Breather membrane, battens and lightweight tiles, usually a slate-effect composite at a fraction of concrete tile weight.
- Internal ceiling: plasterboard, skim and decoration-ready finish, with spotlights and often a roof window or two.
- Building control application and certificate, £150 to £400.
- Guarantee, typically 10 years on the system and workmanship. Ask whether it is insurance backed.
Where quotes differ
Three lines explain almost every gap between two quotes on the same conservatory:
- Roof windows. Each one adds £900 to £1,600 fitted, and a tiled roof without any is a dark room.
- The ceiling finish. Plastered and skimmed, or plasterboard left for you to finish. The gap is £600 to £1,500.
- Electrics. Spotlights, a new circuit and certification, or nothing at all.
Does it pay for itself?
Not in energy savings alone, because you are heating a room you previously did not use. It pays in usable floor space: a 14m² conservatory that works twelve months a year is cheaper than any extension that would give you the same room, which starts at £2,000 to £2,500 per m². Estate agents are also clear that an unusable conservatory reads as a liability to buyers and a warm one reads as a room.
The checks before you sign
Ask for the structural report in writing, confirm that building control is included with a certificate at the end, and check the tile weight per m² against what the surveyor says the frame can carry. Our guides to the structural check and building regulations cover both in detail, and the options comparison is worth a read if you are still weighing glass against solid.
Get tiled roof quotes for your conservatory
Three free quotes from vetted local installers, itemised so you can see exactly what each one includes.