Save money on energy bills and live better in a warmer home — expert insulation for houses & businesses across London and South-East England. See our work 20+ Years Experience 500+ Installations completed 20+ Years of experience 9.87/10 Checkatrade rating London & SE Coverage area Our work A selection of completed insulation projects across London and South-East England. Brick slip installation instead of render

SWI undertook both Internal and External insulation, and even managed to build a porch for us. The work was carried out quickly, efficiently, and to a very high standard. The team were polite, communication was fantastic throughout, and they always tidied up at the end of each day.

I wouldn’t hesitate to recommend this company. “ Very professional, yet very kind. External insulation is only worth it if carried out properly and professionally — and that is exactly what SWI provides.

Their workers are very polite and pleasant to have around. “ I could not recommend Stay Warm Insulation enough. They delivered to a very high standard and went above and beyond to fulfil my requests.