Room-in-roof insulation in Derry/Londonderry

Where we work around Derry/Londonderry

We work in neighbouring Limavady too.

Postcode districts	BT48
Council area	Derry City and Strabane
County or area	County Londonderry

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.

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

Why book with us in Derry/Londonderry

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.

Tidy work

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

Clear contact details

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

Photos of the finished loft

You see the work done without climbing the ladder.

How much does room-in-roof insulation cost in Derry/Londonderry?

£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 Northern Ireland

Northern Ireland has its own Building Regulations, with energy guidance in Technical Booklet F1. Upgrading loft insulation may count as a thermal alteration, so check with your council's building control. How the rules work across the UK.

Questions about room-in-roof insulation in Derry/Londonderry

Do you charge extra to travel to Derry/Londonderry?

Not normally. Our guide prices include normal travel to Derry/Londonderry. If an address needs a ferry or an unusually long journey, we tell you the cost before you book.

Can a landlord in Derry/Londonderry 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 do I pay for work in Derry/Londonderry?

Payment terms are set out on your quote. We never ask for payment on the doorstep or in cash.

Will the room get smaller?

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

How long does room-in-roof insulation take?

Usually three to six working days for one room, depending on how much is stripped and how it is finished.