A solid conservatory roof typically costs £6,000 to £15,000, depending on the size of the room, the roof shape, the system you choose and how many roof lights and spotlights you add. It sits above a glass or polycarbonate replacement in price because the job includes insulation, a plastered ceiling and often a structural check on the frame and base. This guide splits the range into three job sizes.
Solid roof cost by job size
Indicative figures for solid conservatory roof installation, including insulation and a plastered ceiling.
| Job size | What it usually looks like | Typical cost |
|---|---|---|
| Small | Small lean-to, simple pitch, lightweight tiles, one or two roof lights | £6,000 – £8,500 |
| Typical | Victorian or Edwardian, lightweight tiled roof, several roof lights, spotlights in the ceiling | £8,500 – £12,000 |
| Large or complex | P-shape or large gable roof with valleys, extra roof lights, steel or beam reinforcement | £12,000 – £15,000+ |
What changes the price
- Roof shape. Valleys, hips and a wide span take more time and materials than a plain lean-to.
- The system. Lightweight tile systems and fully warm-roof systems differ in thickness, weight and price. Ask what insulation thickness is included.
- Roof lights. They bring daylight back, but each one adds cost, and bigger ones add more.
- Reinforcement. A solid roof is heavier than glass, so beams, posts or the base may need strengthening. This is the item that most often surprises homeowners.
- Interior finish. Plastering, spotlights, electrics and decorating are sometimes priced separately.
- Access and scaffold. They affect the price on any roof job, and a solid roof usually needs scaffold.
Why the structure matters
Many older conservatories were built to carry a light roof, and a solid one can be several times heavier. A thorough installer inspects the frame, dwarf walls and foundations before quoting, and says what, if anything, needs strengthening. If the base shows movement, the honest answer may be that the room is not worth putting a heavy roof on. Our guide on whether to repair, refurbish, re-roof or replace covers that decision.
Converting a glazed roof to a solid one is normally treated as a building control matter, covering structure and thermal performance. The LABC guidance on solid-roof conservatories explains what is typically checked. Ask each installer who handles the application and who signs off the work.
Solid roof or new glass roof?
A solid roof usually keeps the room warmer in winter and cooler in summer, at the cost of daylight. A new glass roof costs less and keeps the bright feel, as set out in our roof replacement cost guide. Our cost calculator lets you compare ranges for each, and the free quote form will bring in written prices.
Frequently asked questions
Is a solid conservatory roof worth the money?
For a room you want to use in all seasons, many homeowners find it is, because it cuts both winter heat loss and summer glare. If the room is mainly used on sunny days for its light, a high-spec glass roof may suit better.
Will a solid roof make my conservatory darker?
Yes, compared with glass. Roof lights restore a good amount of daylight, and the number and size you choose affects both cost and brightness.
How long does a solid roof take to fit?
Typically 1 to 2 weeks on site, plus the survey and lead time for materials.
Does a solid roof need Building Regulations approval?
In most cases, yes. It is a change to the structure and thermal performance of the room, so check with your local building control team before work starts.
Ready to talk to a solid conservatory roof specialist?
Get Free Quotes →