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Why replace your roof
- Warmer in winter
- Cooler in summer
- Quiet when it rains
- A room you use all year
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Lean-to conservatory orangery conversion cost
A orangery conversion on a medium Lean-to conservatory typically costs £14,000 to £35,000, fitted.
A lean-to has a single roof slope running down from the house wall, like a garden shed roof. It is the simplest roof to replace and usually the cheapest, but the slope and the house wall above it set some limits.
Orangery conversions on a Lean-to conservatory
An orangery conversion of a lean-to usually adds a flat roof section with a lantern, which may need a higher wall plate.
- A shallow slope matters for tiles: every tiled system has a minimum pitch, and a very flat lean-to may need a different tile, a slate effect finish, or a raised roof line.
- The new roof is sealed into the house wall with a flashing, so the height of any upstairs windows above it can limit how thick the new roof can be.
- One slope means one gutter run and no hips, which keeps labour low.
Price by size
| Size | Low | Typical | High |
|---|---|---|---|
| Small up to about 3m x 3m | £9,000 | £15,800 | £22,500 |
| Medium about 4m x 3.5m | £14,000 | £24,500 | £35,000 |
| Large about 5m x 4m or more | £20,000 | £35,000 | £50,000 |
Other roofs for a Lean-to conservatory
| Roof | Medium Lean-to | Best for |
|---|---|---|
| Tiled roof | £7,400 to £10,600 | Using the room every month of the year |
| Glass roof | £3,500 to £5,600 | Keeping the light and the view of the sky |
| New polycarbonate roof | £2,700 to £4,100 | The lowest cost fix for a leaking roof |
| Hybrid roof | £6,600 to £10,100 | Warmth with pools of daylight |
| Insulated roof panels | £1,800 to £3,700 | A warmer room on a tighter budget |
Extras to budget for
| Plastered ceiling under a solid roof | £280 to £2,000 | Usually included in branded tiled roof prices. Check it is on the quote. |
|---|---|---|
| LED spotlights in the ceiling | £300 to £600 | A set of downlights for a conservatory ceiling. Sometimes included. |
| Roof window or glazed panel | £450 to £2,000 | Adds daylight to a solid roof. Opening windows also help in summer. |
| Roof lantern | £800 to £3,000 | The glazed centrepiece of an orangery style roof. |
| Internal insulated pelmet | £900 to £900 | A plastered perimeter band that hides the frame head and adds insulation. |
| New fascias and guttering | £150 to £775 | Most solid roof systems come with their own gutter and fascia. |
By region
Questions
How much is a orangery conversion on a Lean-to conservatory?
A orangery conversion on a medium Lean-to conservatory typically costs £14,000 to £35,000 fitted, with most quotes near £24,500. Small Lean-to conservatories start around £9,000, and large ones reach about £50,000.
Why does a Lean-to roof cost less than other shapes?
A shallow slope matters for tiles: every tiled system has a minimum pitch, and a very flat lean-to may need a different tile, a slate effect finish, or a raised roof line.
What should I check before choosing a orangery conversion for my Lean-to conservatory?
An orangery conversion of a lean-to usually adds a flat roof section with a lantern, which may need a higher wall plate.
How long will it take?
Expect 7 to 15 days on a medium Lean-to conservatory.
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