Loft InsulationInstallers

Room-in-roof insulation in Crawley

Looking for room-in-roof insulation in Crawley? We cover Crawley and the rest of West Sussex, with a free survey and a fixed written quote.

That includes addresses in RH11 and RH10, which fall under West Sussex council.

Guide price £3,995 to £8,995 Crawley, West Sussex
An attic room being insulated

Where we work around Crawley

Other towns close by include Horsham, East Grinstead, Haywards Heath and Burgess Hill.

Postcode districtsRH11, RH10
Council areaWest Sussex
County or areaWest Sussex

What is room-in-roof insulation?

Most rooms-in-roof are reached by stripping the existing plasterboard on the slopes, fitting insulation between and over the rafters, and re-boarding. Dormer cheeks and roofs are included where they can be reached. More about room-in-roof insulation.

  • Eaves voids insulated where accessible
  • Boarding and finishing as agreed on the quote
  • Insulation to slopes, knee walls and flat ceiling

Why book with us in Crawley

We measure before we quote

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

Clear contact details

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

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.

Photos of the finished loft

You see the work done without climbing the ladder.

How much does room-in-roof insulation cost in Crawley?

£3,995 to £8,995One room-in-roof, depending on size and finish. 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 room-in-roof insulation in Crawley

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.

How soon can you visit a home in Crawley?

We call you back to agree a time that suits you, and confirm the date in writing. Availability changes week to week, so we will give you the earliest slot we have.

Is loft work in Crawley different from anywhere else?

The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.

Can it be done without removing the plasterboard?

Sometimes the flat ceiling and eaves voids can be reached from behind. The slopes almost always need the boards off to insulate them properly.

Will the room get smaller?

Slightly. Insulated plasterboard over the rafters takes a few centimetres off each slope.

Room-in-roof 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.