Cost guide
Conservatory roof replacement costs (2026): what you'll actually pay
"Too hot in summer, too cold in winter" is the sentence we hear on almost every conservatory survey. Replacing the old polycarbonate or glass roof with an insulated tiled roof fixes it — and turns the conservatory into a room you use all year. The first question is always the same: what does it cost?
Prices online range from suspiciously cheap to silly. Here's what jobs genuinely cost around Mansfield and the East Midlands, and what moves the number up or down.
The headline numbers
For a lightweight insulated tiled roof — the conversion most people want — realistic 2026 pricing looks like this:
- Small lean-to (up to ~3m × 3m): from £6,500
- Mid-size lean-to or Edwardian (~3m × 4m): typically £8,000–£11,000
- Larger Victorian, P-shape or gable-end: typically £11,000–£16,000+
- Full plastered ceiling with downlights: usually included in a proper quote — check, because some firms leave it out
What changes the price
Size matters, but shape matters almost as much. A rectangular lean-to is the simplest conversion; a Victorian with its faceted bay end means more cuts, more hips and more labour. Beyond that, the big variables are:
- Roof shape — lean-to is cheapest; Victorian bays and P-shapes cost more
- Tile choice — lightweight metal tiles vs synthetic slate vs real slate-effect
- Glazing — adding a glass panel or roof lantern to keep light in adds £1,000–£2,500
- Structure — older frames sometimes need strengthening or new ring beams
- Finish — plastered and skimmed ceiling, LED downlights, internal pelmet
Building regs — don't skip this
Swapping a translucent conservatory roof for a solid one is building work, and it needs building-regs approval. A proper installer designs the roof with an engineered lightweight system, insulates it to current standards, and handles the sign-off so you get a completion certificate — which you'll need when you sell the house. If a quote is dramatically cheaper than the numbers above, this is usually the part that's missing.
Is it worth it against a new extension?
A tiled conservatory roof at £8,000–£12,000 delivers most of the benefit of a small extension at a fraction of the £30,000–£50,000 an extension costs. You keep the existing frames, base and glazing; you gain a usable, insulated room. Where the existing conservatory frames are at the end of their life, we'll tell you straight — sometimes replacing the whole conservatory is the better spend.
Our verdict
Budget from £6,500 for a small lean-to and £8,000–£12,000 for the typical family conservatory, fully finished with a plastered ceiling and building-regs sign-off. Be wary of quotes far below that — the difference is usually insulation, engineering or paperwork you'll pay for later.
We survey, measure and price exactly — fixed written quote within 48 hours, and you can see completed conversions from real local jobs on our projects pages before you decide.
Common questions
How long does a conservatory roof replacement take?
Will a solid roof make my conservatory dark?
Do I need planning permission?
Can my existing conservatory frames take a tiled roof?
Want an exact price for your conservatory?
Free survey, fixed written quote within 48 hours.