Rafter insulation in Purley
Looking for rafter insulation in Purley? We cover Purley and the rest of Greater London, with a free survey and a fixed written quote.
We cover the CR8, CR2 and CR5 postcode districts, inside the Croydon council area.

Where we work around Purley
Purley sits about 12 miles from central London, measured in a straight line.
Nearby, we also cover Carshalton, Croydon, Sutton and Mitcham.
| Postcode districts | CR8, CR2, CR5, SM6 |
|---|---|
| Council area | Croydon |
| County or area | Greater London |
What is rafter insulation?
Because the whole roof slope, the gables and the party walls now have to be insulated, this costs much more than insulating the floor and saves less heat for the money. It earns its place when you need a warm loft. More about rafter insulation.
- Build-up designed for your type of roof underlay
- Insulated plasterboard lining where specified
- Rigid insulation between the rafters, joints taped
Why book with us in Purley
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
We measure before we quote
Existing depth, joist spacing, wiring and the tank are checked, not guessed.
Photos of the finished loft
You see the work done without climbing the ladder.
Plain-English advice
We explain what we find in plain English, and say so when nothing needs doing.
How much does rafter insulation cost in Purley?
Part of this work can be zero-rated as energy-saving materials until 31 March 2027, and part is standard-rated. If VAT applies, your quote shows which is which.
Building regulations in England
In England, a loft insulated across more than half its area should reach a U-value of 0.16 W/m²K. Insulation alone is not usually notified to building control. How the rules work across the UK.
Questions about rafter insulation in Purley
What do I need to do before you arrive in Purley?
Clear a path to the hatch and, if you can, move stored items away from the area we will be working in. Tell us about anything heavy or fragile.
Will I get a written quote for work in Purley?
Yes. Every quote is in writing with the work, the price and what is included, so you can compare it properly.
Do you cover all of CR8?
Yes, we cover the CR8 postcode district and the districts around Purley.
Will it cause condensation?
It can if the build-up is wrong for the roof. Old bitumen felt needs a ventilation gap behind the insulation; a modern breathable membrane may not. We check before we design it.
Is insulating between the rafters better than the loft floor?
Not for saving energy alone. Insulating the floor heats less space and costs far less. Rafter insulation is the right answer when the loft itself needs to be warm.
