Loft InsulationInstallers

Rafter insulation in Crawley

Crawley is part of the area we cover in West Sussex. For rafter insulation, you get a free survey and a fixed written quote.

That includes addresses in RH11 and RH10, inside the West Sussex council area.

Guide price £1,645 to £2,595 Crawley, West Sussex
Insulation boards fitted between roof rafters

Where we work around Crawley

Nearby, we also cover Horsham, East Grinstead, Haywards Heath and Burgess Hill.

Postcode districtsRH11, RH10
Council areaWest Sussex
County or areaWest Sussex

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.

  • Build-up designed for your type of roof underlay
  • Rigid insulation between the rafters, joints taped
  • Vapour control layer where the design needs one

Why book with us in Crawley

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.

Clear contact details

Your quote says who to call with questions before, during and after the work.

We measure before we quote

Existing depth, joist spacing, wiring and the tank are checked, not guessed.

Tidy work

Dust sheets on the route in and every bit of packaging taken away.

How much does rafter insulation cost in Crawley?

£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 Crawley

Do you cover all of RH11?

Yes, we cover the RH11 postcode district and the districts around Crawley.

Can you visit Crawley outside working hours?

Ask about early, late or weekend appointments when you get in touch, and we will tell you honestly what we can offer.

Can a landlord in Crawley book work for a tenanted house?

Yes. We can arrange access with the tenant directly and send you photos once the work is finished.

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.

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.

Rafter insulation in other towns

Other loft work in Crawley

Find out what your loft needs

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