Cambridge averages 1,800 heating degree days a year. That single number decides how much warmth a cold conservatory roof leaks, and in Cambridge it adds up.
Cambridge weather, 2021 to 2025
The warmest day in those five years reached 38.4°C on 19 July 2022. Averages come from Open-Meteo historical weather data for Cambridge.
What your roof lets out each year
For a typical 15 m² conservatory roof in Cambridge, kept at a comfortable temperature when you use it:
Costs use electricity at 26.32p per kWh, the Ofgem cap for 1 October to 31 December 2026. On gas central heating the money figures are about a third as big. Put in your own size on the roof builder, which uses Cambridge's weather when you pick it.
Prices in Cambridge
Small0 to 12 m²
from£3,000
Most pay £3,200 to £3,800
For example a 3 m by 3 m lean-to. Fitted in a day.
Price a small roofMedium12 to 25 m²
from£4,000
Most pay £4,200 to £4,950
For example a 4 m by 4 m Edwardian. Fitted in 1 to 2 days.
Price a medium roofLarge25 m² and over
from£5,000
Most pay £5,800 to £6,850
For example a 6 m wide P-shape. Fitted in 2 to 3 days.
Price a large roofBy shape, including removal of the old roof, panels in your colour, fitting, building control and the guarantee:
| Shape | Small, 0 to 12 m² | Medium, 12 to 25 m² | Large, 25 m² and over |
|---|---|---|---|
| Lean-to | £3,000 to £3,550 | £3,950 to £4,700 | £5,450 to £6,450 |
| Edwardian | £3,200 to £3,800 | £4,200 to £4,950 | £5,800 to £6,850 |
| Victorian | £3,300 to £3,900 | £4,350 to £5,150 | £6,000 to £7,100 |
| Gable end | £3,350 to £4,000 | £4,450 to £5,250 | £6,100 to £7,250 |
| P-Shape | £3,500 to £4,150 | £4,600 to £5,450 | £6,300 to £7,500 |
How it works in Cambridge
- Build your roof online or send us your postcode for a guide price.
- A surveyor covering Cambridge measures up and checks the frame, free of charge.
- You get a fixed written price. Nothing is ordered until you agree.
- We apply to building control, then fit the roof, usually in one or two days.
- Building control signs it off and your guarantee paperwork follows.
Thinking about a full tiled roof instead? Read what the price difference really buys before you decide.
Questions from Cambridge
How much is a new conservatory roof in Cambridge?
Insulated panel roofs in Cambridge start at £3,000 for a small lean-to. A medium Edwardian of around 17 m² is usually £4,200 to £4,950, with the old roof removed, building control and a 10 year guarantee included.
Is a solid roof worth it on Cambridge's weather?
On 1,800 heating degree days a year, a 15 m² roof of 16 mm polycarbonate lets out about 1,490 kWh if you keep the room warm. Insulated panels cut that to about 279 kWh, worth about £319 a year on an electric heater.
Do I need permission in Cambridge?
Planning permission is rarely needed because the size and height of the conservatory stay the same. Check with the council first if your home is listed or in a conservation area. Building control approval is normally needed and we apply for you.
When can a surveyor come out in Cambridge?
Surveys around Cambridge are usually booked within a week, and fitting follows three to five weeks after that.