Case study · Carshalton, Surrey
Eighteen family homes, three streets, one standard
Eighteen maisonettes on Reynolds Close, Green Wrythe Lane and Wrythe Lane, every one insulated with ROCKWOOL.

family homes, nine buildings
every home moved to EPC band C
TrustMark remediations
three guarantees on every home
The people
Behind every front door, a different family
Older residents, young families, people on low incomes and people whose health suffers in a cold home. Every home got the same work, the same finish and the same care.
The system
ROCKWOOL, fitted the right way
We fitted 100mm ROCKWOOL boards with a silicone textured finish, as one complete ROCKWOOL Wall Systems external wall insulation system. Each board is bonded with adhesive first, then fixed through with mechanical fixings, to the pattern in the design for each home.
Fire safe
Stone wool is non-combustible, rated A1, the highest fire rating there is. It adds no fuel to a fire, so your family is safer.
Naturally breathable
Stone wool lets moisture escape instead of trapping it. Your home stays dry and free of mould.
Remarkably quiet
The same fibres that hold the warmth in also soak up sound. Traffic and noisy neighbours fade into the background.
Year-round comfort
Warm in winter and cool in summer. Stone wool does not shrink, sag or break down, so it keeps working for decades.
Built right, verified independently
Designed, installed and signed off properly
Every home was designed and installed under PAS 2035, with a ventilation strategy for each one and independent sign off by Cotality, our Retrofit Coordinator. We kept a photographic record of every stage lodged with TrustMark.
Three guarantees, each for 25 years
The work is among the projects behind our Energy Efficiency Awards wins: Insulation or Fabric Installer and Contractor of the Year, Greater London, in 2025 and 2026.
Get 10% off with one word
Send ADVICE on WhatsApp. Our team will come back with ideas that fit your home, not just any home.
