
Internal wall insulation (IWI) is an effective solution for improving the thermal efficiency of your home. By insulating the interior walls of your property, you can significantly reduce heat loss, lower energy bills, and create a more comfortable living environment.
What is Internal Wall Insulation?
Internal wall insulation involves adding a layer of insulating material to the inside of external walls to prevent heat loss. This method is commonly used in older properties with solid walls that lack cavity wall insulation.


Main Services
Benefits of Internal Wall Insulation
Energy Efficiency
Enhanced Comfort
Noise Reduction
Improved Property Value
Sustainability
The Installation Process
Assessment and Preparation
Surface Preparation
Installation of Insulation
Finishing Touches
Types of Internal Wall Insulation
Insulated Plasterboard
Stud Wall Systems
Flexible Thermal Lining
FAQ
IWI is ideal for older homes with solid walls, properties in conservation areas, or listed buildings where external insulation isn’t an option.
For a standard property, internal wall insulation typically takes 1 to 2 weeks, depending on the scope of work.
While DIY installation is possible for experienced individuals, professional installation ensures compliance with building regulations and optimal results.
No, existing damp issues must be resolved before installing insulation to prevent further problems.
Generally, planning permission isn’t needed unless the property is listed or in a conservation area.