Rafter insulation in Chertsey
Chertsey is part of the area we cover in Surrey. For rafter insulation, you get a free survey and a fixed written quote.
We cover the KT16, KT15 and TW17 postcode districts. The local authority is Surrey.

Where we work around Chertsey
Chertsey is about 5 miles from Woking as the crow flies.
Other towns close by include Weybridge, Staines-upon-Thames, Egham and Ashford (Surrey).
| Postcode districts | KT16, KT15, TW17, TW18 |
|---|---|
| Council area | Surrey |
| County or area | Surrey |
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. We check the roof underlay first: a breathable membrane and a felt with no ventilation gap need different build-ups to avoid condensation. More about rafter insulation.
- Vapour control layer where the design needs one
- Build-up designed for your type of roof underlay
- Insulated plasterboard lining where specified
Why book with us in Chertsey
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.
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
Fixed written price
The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.
How much does rafter insulation cost in Chertsey?
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 Chertsey
Do you take on jobs outside Chertsey?
Yes. We also work in Weybridge and Staines-upon-Thames and elsewhere in Surrey.
Do you cover all of KT16?
Yes, we cover the KT16 postcode district and the districts around Chertsey.
What do I need to do before you arrive in Chertsey?
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.
Can I use the loft as a bedroom after rafter insulation?
Insulation alone does not make a loft habitable. Fire escape, stairs, floor strength and headroom all come into a conversion, which needs building control.
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.
