Internal Wall Insulation

List of Internal Wall Insulation Companies

This is the listing page for internal/interior wall insulation, aka dry-lining, Contractors in your area.






Some brief information on Internal Wall Insulation - Dry Lining.

Internal Wall Insulation is one of three different types of wall insulation. The other two are Exterior Wall Insulation and Cavity Wall InsulationInternal wall insulation is often referred to as dry lining. Dry Lining is a composite board usually consisting of gypsum plaster on one side and an thermal insulation material on the other. This can come with a vapour barrier backing.

The installation process involves fixing these dry-lining boards to the internal faces of the external walls.  Extreme care should apply when fixing dry-lining.  Badly fitted internal wall insulation, aka dry-lining, can result in air pockets developing behind the thermal insulation side of interior wall insulation board.

There should be little or no need to install on the party walls unless the neighbouring property is cold or derelict. Although dry lining is an excellent form of interior wall insulation it is not as good as exterior wall insulation. The reason being is that it is difficult to remove all the thermal bridges.

Not all wall insulation boards are made of the same material. Two popular materials are polyurethane and polystyrene. To appreciate the difference it can be proven that 25 mm of polyurethane will yield the same u-value as 38 mm of polystyrene. It should be noted that the cost of polyurethane will be a lot higher than polystyrene.  In many cases though, the thickness design requirements will override the need to save money.  It is important, therefore, to weigh up costs versus potential decrease in room volume when comparing the these two materials.

Not every home is a suitable candidate for dry lining. Fixtures such as shelves and cabinets make it difficult to insulate some walls.   You may also, have to redo some plumbing and electric wiring and sockets. This can add to the overall cost. There is the added disadvantage of decreasing the room size.  If you are lucky enough to have interior wall insulation you will appreciate the major saving on the heating bills.

Internal wall insulation

Internal wall insulation dry lining

Much of the internal wall insulation work takes place in your living space. You will have to put up with this disruption to home life for a brief period. Make sure you get a timeline to completion from your chosen contractor. Get some references before you sign any contracts.  Make stage payments only. Pay for the completion of the individual walls, say front and back, upstairs-downstairs.   Wait until you see the work schedule before negotiating the payment plan.

You should ensure that your contractor installs an Air Tight membrane behind the dry lining. This will go a long way in eliminating draughts through from your external walls. This will result in further savings on your heating bills.

The Which website offers some excellent information on wall insulation. They are a good source for exploring the cost and savings aspects.

Interior wall Insulation using mineral wool

The use of mineral wool as a method of insulating walls is only practical for larger living spaces. This would be ideal for large sheds or barns  being converted into a living space.  For mineral wool contractors go to roof attic insulation contractors in your area.

internal wall insulation mineral wool

internal wall insulation mineral wool


  • Much cheaper than external Insulation.
  • Less time to complete than external insulation.
  • Improved heat retention.
  • Major savings on your heating bills..
  • Lower carbon footprint
  • A greater improvement in energy rating.


  • It is very difficult to resolve all the thermal bridging issues - these are areas where higher u-values mean slightly higher heat losses.
  • A reduction in room volume size.
  • Disruption to home life during installation.
  • Installation costs can be high.