Insulated conservatory roofs
An insulated conservatory roof for the room you gave up on
Under polycarbonate, the average English conservatory spends 1,320 waking hours a year above 25°C. We take that roof off, leave your frame where it is and fit a 75 mm insulated panel roof, normally in one or two days. Same weather afterwards: 317 hours. Guide prices from £3,000.
- Free survey, fixed written price
- Nothing to pay before the survey
- 10 year insurance backed guarantee
Panel roofs we have fitted
Real roofs on real conservatories, photographed by our fitters. Tap any photo to see it large.
A hipped conservatory with its new white panel roof
Lean-to panel roof under a rain cloud
The window seat, now usable in winter
Bungalow lean-to, glass swapped for panels
A lounge under a white panel ceiling
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Teal room, ribbed sheets out, white ceiling in. -
A Victorian bay, before and after its panel roof. -
A bungalow lean-to that swapped glass for panels.
How hot does the room get?
Every square is one hour of one month, averaged over two years of real weather. Under polycarbonate the afternoons from May to August glow amber and plum; tap Panel roof and most of that colour goes. Hounslow is shown because it overheats more than any other of the 104 towns we model.
A year inside a Hounslow conservatory
Tap a roof to compare.
- 1,501
- hours over 25°C
- 49°C
- hottest hour
- 34°C
- July, 3pm
- 1,642
- hours over 25°C
- 52°C
- hottest hour
- 36°C
- July, 3pm
- 481
- hours over 25°C
- 36°C
- hottest hour
- 26°C
- July, 3pm
Blue: heater weatherPale: comfortableAmber to plum: too warm
- 76%
- fewer waking hours above 25°C
- 1 to 2 days
- to fit most roofs
- £3,000
- guide price for a small roof
- 10 years
- insurance backed guarantee
What is wrong with yours?
Each one has a page on how to test it, what helps for little money and when only a different roof fixes it.
What goes on your frame
Each panel is a sandwich: an aluminium top skin that takes the weather, 75 mm of insulating foam, and an aluminium underside that is your finished white ceiling. No plastering, no boarding, no sheets to clean.
The panels are cut to the measurements taken at the survey, sit on your existing glazing bars and lock under capped trims. A ridge or hub joins them at the top, and new flashing seals the roof to the house.
Colours and finishes covers the outside shades and the ceiling inside.
The same year, two roofs
Average room temperature, every month and hour, across all 104 towns we model. Left: polycarbonate. Right: an insulated panel roof. The afternoons are where the difference lives.
Blue: heater weatherPale: comfortableAmber to plum: too warm
- Polycarbonate1,320 h too warm
- Glass1,467 h too warm
- Insulated panels317 h too warm
Too cold (under 12°C)Chilly (12 to 17°C)Comfortable (17 to 25°C)Warm (25 to 28°C)Too hot (over 28°C)
Comfort Calendar model: 14 m² floor (4.0 m by 3.5 m), three glazed sides, south facing, 2024 and 2025 hourly weather from Open-Meteo. Run it for your town.
Guide prices
Fitted, with the old roof taken away. Shape nudges it: a Victorian runs about 10% over a lean-to of the same size.
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Small
from £3,000
up to 12 m², for example a 3 m by 3 m lean-to
Victorian of this size from £3,300
Price mine -
Medium
from £4,000
12 to 25 m², for example a 4 m by 3.5 m Edwardian
Victorian of this size from £4,400
Price mine -
Large
from £5,000
over 25 m², for example a 6 m wide P-shape
Victorian of this size from £5,500
Price mine
The fitting day, roughly
Most roofs take one day. Here is how it usually runs; the full version covers survey to sign off.
- 8amWe arrive, sheet the floor and clear the gutters.
- 9amOld sheets or glass come off and go on the van.
- 11amFrame checked, any tired bars made good.
- 1pmPanels go in, cut to the survey measurements.
- 3pmRidge, trims, flashing and seals finished.
- 5pmSwept up, walked round, keys back to you.
Which towns overheat most?
We ranked 104 towns by the hours a polycarbonate conservatory spends above 25°C. London and the south east lead, but even Buxton, the lowest, gives 949 hours. The table is free to use, with a CSV.
Your roof shape
Five shapes cover nearly every conservatory. Each page explains how the panel roof is put together for it.
Asked before every survey
Do you keep my conservatory frame?
Yes, if it is sound, and most are. The surveyor checks the frame, the dwarf wall and the glazing bars before quoting, and the written price says what, if anything, needs work first.
How much lighter is the room?
Light still comes in through every wall, so the room is lit from the sides instead of from above. Most people find it brighter in summer because there is no squinting, and you can add a glazed roof light.
Is a panel roof as warm as a brick extension?
No, and anyone who says so is stretching it. The panel roof has a U-value of about 0.43 W/m²K and the walls are still glass. What it does is stop the roof overheating the room and cut the heater you need by about 33%.
What does a new conservatory roof cost?
Our guide prices start at £3,000 for a small roof, £4,000 for medium and £5,000 for large, fitted. The survey is free and the price is fixed in writing before any work.
How long does fitting take?
Most roofs are done in one day, bigger or more complicated ones in two. You can stay in the house; the conservatory just needs to be empty.
Where do the temperature numbers come from?
From our Comfort Calendar model: two years of hourly Open-Meteo weather for 104 towns run through one typical conservatory. The full method is on our how we model it page.
Where we fit
Eight regions of England, 104 towns with their own weather pages.
- West MidlandsWalsall, Dudley, West Bromwich and more
- East MidlandsCoalville, Market Harborough, Melton Mowbray and more
- East Anglia and HertfordshireEly, St Neots, Hitchin and more
- Thames Valley and SurreyMaidenhead, Wokingham, Henley-on-Thames and more
- West CountryTewkesbury, Malmesbury, Devizes and more
- Greater LondonRuislip, Uxbridge, Hounslow and more
- North WestBolton, Wigan, Altrincham and more
- Yorkshire and the HumberYork, Sheffield, Doncaster and more
Find out what your roof would cost
Seven short questions, a guide price on screen, then a free survey and a fixed written price. No deposit before the survey.