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Wall Insulation

Buy wall insulation rolls, boards & slabs for internal & external wall insulation including cavity insulation. Find the right R-Value for optimal temperatures.



Cavity wall insulation is an important addition to new-builds and renovations, to help retain warmth in winter, keep out heat in the peak of summer, and to reduce the transmission of noise around your property. Stud wall insulation boards can be installed quickly and easily, with no mess, to immediately add thermal and acoustic insulation to your project. Alternatively, wall insulation roll is a flexible way to fill walls with cavity insulation, again giving the wall immediate acoustic and thermal insulation benefits.

Jewson cavity insulation is manufactured by industry-leading brands like Celotex, Isover and Rockwool, which are already installed in many thousands of households around the UK. Cavity wall insulation is just one part of our range of insulation products to help keep homes and other premises feeling comfortable all year round. Jewson also supplies floor insulation, which can enhance comfort underfoot and prevent the transmission of sound between different storeys of a building.

To reduce heat loss through the roof of a structure, install a good quantity of loft & roof insulation, which is especially important during loft conversions to make the space habitable. Remember to ensure adequate ventilation in rooms fitted with cavity wall insulation for the first time. You'll find a range of air bricks among our bricks & blocks.

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