Services › Internal wall insulation
Internal Wall Insulation in Barnstaple & North Devon
A warmer home and lower heating bills: we insulate solid external walls from the inside to cut heat loss – finished with a smooth skim, ready to decorate.
Warmer rooms, lower heating bills
Many North Devon homes have solid stone, cob or brick external walls with no cavity to fill. They lose heat quickly and can feel cold and damp to the touch. Internal wall insulation means fixing insulation to the inside face of those walls, then boarding and skimming over it – a practical way to beat rising energy bills without changing the outside of the house.
Because it is fitted room by room, it suits homes where external insulation isn’t possible or wanted, such as terraces and properties in conservation areas.
Thinking about your heating bills? Read our guide: how to lower heating bills in older and solid-wall homes.
Step by step: internal wall insulation in South Molton
The boards we use
For internal wall insulation and insulated dry lining we use Celotex insulated plasterboard: a plasterboard face bonded to a rigid PIR foam insulation layer. The boards are fixed to the wall, then skimmed smooth – as on our job in South Molton.
What’s involved
- We check the wall first – any damp or water penetration must be fixed before insulating. Damp proofing →
- Insulation boards are fixed to the inside of the external wall, using a system chosen to suit the wall and the room.
- Details around windows, sockets and skirting are worked out so the room still functions well.
- The new surface is skimmed smooth, ready for decorating. Plastering & skimming →
Older solid walls
Cob, stone and other traditional walls need to manage moisture, so the insulation and finish should be chosen carefully – sometimes a breathable system is the better option. For example, on our lime and eco-cork renovation in Welcombe, breathable cork insulation was used alongside lime. Lime & heritage work →
Frequently asked questions
Will internal wall insulation make my rooms smaller?
Slightly – the wall gets thicker by the depth of the insulation and board. We’ll talk through the options for each room.
Is it messy?
It involves taking the room back to the wall, so furniture needs to be moved out. We protect the rest of the house and leave it clean and tidy.
Get a free quote
Tell Julian a little about the job – where it is in North Devon, what needs doing and roughly how big it is. Photos help a lot. All our quotes are free. Call 07881 688372 (mobile) or 01271 314623 (landline), WhatsApp, or send the details online.