Loft InsulationInstallers

Rafter insulation in Wiltshire

For rafter insulation anywhere in Wiltshire, you get a free survey and a fixed written quote.

We work in Swindon, Salisbury, Trowbridge (Wiltshire), Chippenham and Melksham and everywhere in between.

Guide price £1,645 to £2,595 Wiltshire
Insulation boards fitted between roof rafters

Where we work around Wiltshire

This takes in the Wiltshire and Swindon council areas.

Postcodes starting BA, SN and SP are all inside our area.

CouncilsWiltshire and Swindon
Postcode areasBA, SN, SP
Towns listed9

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.

  • Insulated plasterboard lining where specified
  • Vapour control layer where the design needs one
  • Rigid insulation between the rafters, joints taped

Why book with us in Wiltshire

We measure before we quote

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

No pressure selling

You get everything in writing and decide in your own time.

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.

How much does rafter insulation cost in Wiltshire?

£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 Wiltshire

Do you cover the whole of Wiltshire?

Yes. We cover every town and village in Wiltshire, including Swindon, Salisbury and Trowbridge (Wiltshire).

How do I book a survey in Wiltshire?

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

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 Wiltshire

Find out what your loft needs

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