1950s Semi – Fishponds, Bristol
Graphite EPS External Wall Insulation + Silicone Render Finish
About This Project
This 1950s semi-detached home in Fishponds suffered from cold front rooms, high heat loss through uninsulated solid walls, and tired, cracked exterior render.
The client wanted to make the home warmer, reduce energy bills and update the appearance with a modern, clean finish.What We Did
We installed a 100mm Graphite EPS external wall insulation system, reinforced with a full mesh basecoat, and finished with a premium silicone render in a smooth white finish.
The project included:
Full removal of blown/cracked render
Substrate repair and preparation
EPS insulation installation
Mesh-reinforced basecoat
Silicone primer & silicone topcoat
New verge trims, beads, and detailing
Downpipe & service adjustments
Site protection and clean-up
Results
Warmer internal rooms with stable wall temperatures
Reduced heat loss, particularly on front elevation
Fresher, modern exterior appearance
Lower risk of condensation and mould
Significant improvement in thermal comfort during colder months
Materials Used
100mm Graphite EPS insulation board
Full mesh reinforcement system
Silicone primer
Silicone topcoat (Colour: White)
Project Duration
8 days
System Type
Graphite EPS External Wall Insulation
Silicone Render Finish
Client Feedback
“MAINCO transformed our home completely. The house feels much warmer and the finish looks brilliant. The team were tidy, organised and kept us updated throughout.”
PROJECT: Full Exterior Transformation – Bristol
Mineral Wool External Wall Insulation + Silicone Render + Full Rear Extension Upgrade
About This Project
This property in Bristol was suffering from severe thermal loss, structural deterioration, and outdated exterior finishes.
The rear elevation had:
Rotten timber structures
Failed roofing over the ground-floor extension
Cracked and aged render
Significant cold bridging
Poor overall energy performance
The homeowner wanted to modernise the entire rear elevation, improve insulation, and create a warm, dry living environment.
What We Did
This was a full external transformation. Our team carried out:
✔ Structural repair & preparation
Removed all rotten timber elements
Stripped back failing render
Reinforced the existing extension structure
Repaired substrate and stabilised weak sections
✔ Installed External Wall Insulation (Mineral Wool)
Chosen for:
Breathability (ideal for older walls)
Fire safety
Moisture tolerance
✔ Full Silicone Render System
Mesh-reinforced basecoat
Primer
Smooth silicone topcoat in anthracite grey
✔ Extension Redesign & Modernisation
New façade layout
New window and door arrangement
Slimline modern sliding doors
Integrated shading/slat system
Proper waterproofing detailing
✔ Finishing Work
New guttering and downpipe layout
Trims, beads and corner protection
Full clean-down and finishing detailing
Materials Used
Mineral Wool insulation system
Mesh basecoat + reinforcing mesh
Silicone primer
Silicone topcoat (Anthracite Grey)
Aluminium finishing trims & detailing
Structural reinforcements (as required)
Project Duration
Approx. 6–8 weeks due to structural repairs + full façade works.
System Type
Mineral Wool EWI System
Silicone Render (Black)
Client Feedback
“The transformation is unbelievable. The house is warm, dry and looks like a completely new property. MAINCO were professional from start to finish.”
