EWI & Render London
External Wall Insulation LondonExternal Wall Insulation & Render London — Warmer, Better-Looking Homes
External wall insulation with silicone render finishes — cut heat loss, stop damp and transform tired pebble-dash or bare brick exteriors. Full design, supply and installation for homeowners and landlords across London within the M25.
🏠 External wall insulation can reduce heating bills and completely refresh your home's exterior — one job, two benefits. Book a free survey for a clear quote.
- External wall insulation (EWI) systems
- Silicone and mineral render finishes
- Pebble-dash removal and re-rendering
- Full supply and installation
Book Your Free Quote Visit
Pick a date and time that suits you — we will send someone out to survey your property and provide a no-obligation quote.
Or call us: 020 4634 0020
25+
Years Trading
500+
Projects Completed
EWI
& Render Systems
Fully
Insured
Insulation & Render Together
EWI boards fixed to the exterior, meshed, base-coated and finished with a through-coloured silicone render — warmer walls and a clean modern facade in one system.
Pebble-Dash & Facade Upgrades
Tired pebble-dash, cracked render and stained exteriors stripped back and re-finished. Your property looks new without the cost of recladding.
Energy Efficiency Gains
External insulation reduces heat loss through solid walls — particularly effective on pre-war terraces and properties without cavity walls.
Design, Supply & Build
Scaffolding, materials and installation managed by our team. Trade-supply pricing on render systems and insulation boards.
Our work
EWI & Silicone Render Systems
External wall insulation and high-performance render — improving energy efficiency with a clean, modern exterior finish.
Why Cheap Render Fails
Render blown off walls, cracks at corners, and water trapped behind insulation — usually because preparation was rushed, wrong products were used, or detailing at windows and sills was ignored.
- Insufficient surface preparation
- No mesh reinforcement at stress points
- Poor detailing around openings
- Wrong system for the substrate
We specify the right EWI system for your wall type and install with proper beads, mesh and weatherproof detailing.
Exterior upgrades for houses, flats and rental properties.
EWI & Render Services
External Wall Insulation
Full EWI systems
Silicone Render
Through-coloured finishes
Pebble-Dash Removal
Strip and re-render
Mineral Render Systems
Breathable finishes
Solid Wall Insulation
Pre-war & period homes
Weatherproof Detailing
Sills, beads & trims
House Rendering
Full exterior refresh
Landlord Exterior Upgrades
Portfolio properties
Simple Process. Fast Turnaround.
Exterior Survey
We assess wall condition, substrate type, access and whether EWI is appropriate for your property.
System Design & Quote
EWI specification, render colour options and itemised quote — scaffolding included.
Installation
Preparation, insulation boards, mesh, base coat and top-coat render applied to manufacturer spec.
Completion
Detailing checked, site cleared, and your upgraded exterior ready.
Trusted by Landlords, Homeowners & Property Managers
“Pebble-dash removed and silicone render applied. House looks completely different — and noticeably warmer.”
Homeowner
South East London
“EWI on our solid-wall terrace. Professional installation and neat finish around the windows.”
Homeowner
Kent
“Clear quote, scaffolding sorted, and the render still looks perfect two years on.”
Google Review
★★★★★