Loft InsulationInstallers

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.

Guide price £1,645 to £2,595 Purley, Greater London
Insulation boards fitted between roof rafters

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 districtsCR8, CR2, CR5, SM6
Council areaCroydon
County or areaGreater 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?

£1,645 to £2,595About 30 m² of roof slope. Free survey and a fixed written quote before any work.

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.

Work out a guide price for your loft

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.

Rafter insulation in other towns

Other loft work in Purley

Find out what your loft needs

Free survey and a fixed written quote for installation work. Guide prices first if you prefer.