Loft InsulationInstallers

Room-in-roof insulation in Hampshire

We provide room-in-roof insulation across Hampshire, with a free survey and a fixed written quote.

That includes Southampton, Portsmouth, Basingstoke, Gosport and Waterlooville, and the villages around them.

Guide price £3,995 to £8,995 Hampshire
An attic room being insulated

Where we work around Hampshire

We work across the Hampshire, Portsmouth and Southampton council areas.

That covers the BH, GU, PO, RG, SO and SP postcode areas.

CouncilsHampshire, Portsmouth and Southampton
Postcode areasBH, GU, PO, RG, SO, SP
Towns listed23

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. Where there is access behind the knee walls, we insulate the eaves voids and the floor behind them too. More about room-in-roof insulation.

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

Why book with us in Hampshire

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.

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.

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

£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 Hampshire

Do you cover the whole of Hampshire?

Yes. We cover every town and village in Hampshire, including Southampton, Portsmouth and Basingstoke.

How do I book a survey in Hampshire?

Send the form or call us. We call back to agree a time and confirm it in writing.

Will the room get smaller?

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

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.

Room-in-roof insulation in other towns

Other loft work in Hampshire

Find out what your loft needs

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