How we apply render & plastering.
No guesswork, no shortcuts. Every system we install follows the same careful process — built up over 20+ years’ hands-on experience — from the first survey to the final finish.
The exact process we follow.
Select a service below to see every stage of our application process.
Substrate Survey & Preparation
As with any render system, we start by checking the wall is sound — tapping for hollow sections, checking for damp, and cutting back any failing material to a solid base before work begins.
FoundationPriming & Suction Control
A bonding primer or spatterdash is applied to even out suction across the substrate. Monocouche is a single, thicker coat, so getting consistent suction beforehand matters more than it does with multi-coat systems — uneven suction shows up as patchiness in the finished render.
PrepSingle-Coat Application
Monocouche is applied in one main pass, typically in the region of 15–20mm thick, combining the strength of a base coat with the finish of a topcoat. It's worked in sections with a wet edge maintained throughout, so joins between sections don't show once it's finished.
Main ApplicationTexture Finishing
Before the render fully sets, the surface is worked to the agreed texture — typically a scraped or floated finish. Timing matters: worked too early and it smears, too late and the texture won't take evenly.
FinishColour Through the Full Depth
The colour is mixed into the material itself rather than painted on afterwards, so it stays consistent through the full thickness of the render — minor surface scuffs don't reveal a different colour underneath.
ColourCuring Period
Monocouche needs a period of dry weather to cure fully before it reaches its normal strength and weather resistance. We plan the application around the forecast rather than rushing the finish.
CuringSubstrate Survey & Preparation
Every job starts with a full assessment of the existing wall — tapping for hollow or loose areas, checking for damp, and inspecting any existing render for soundness. Failing areas are cut back to solid masonry and window and door reveals are protected before anything else happens.
FoundationBase Coat & Reinforcement
A polymer-modified base coat is applied across the wall, with alkali-resistant fibreglass mesh embedded into it. The mesh lets the system flex slightly with normal building movement, which is what keeps silicone render resistant to the hairline cracking that affects poorly reinforced systems.
Layer 1Priming
Once the base coat has cured, a colour-matched primer is applied. This evens out suction across the surface and gives the silicone topcoat a consistent base to bond to — skipping it risks patchy colour and weaker adhesion.
Layer 2Silicone Topcoat Application
The silicone render is applied in your chosen colour and texture. Because it's through-coloured and water-repellent, the finish sheds rain rather than absorbing it, which is what gives silicone render its low-maintenance, self-cleaning reputation.
FinishInitial Cure & Weather Protection
Freshly applied silicone render needs a dry window to cure properly. We keep a close eye on the forecast and, where needed, protect the surface from rain in the first day or two, so the finish sets exactly as it should.
CuringSurvey & Thermal Assessment
We assess the existing wall construction and condition to confirm external wall insulation is suitable, and recommend an insulation thickness appropriate for the property and the thermal improvement you're after.
SurveyPreparation & Access
Scaffolding or access equipment is put up, the existing surface is cleaned and inspected, and any repairs are carried out before insulation goes on the wall.
PreparationInsulation Board Fixing
EPS or mineral wool boards — chosen to suit the specification — are adhesive-bonded and mechanically fixed to the wall, staggered at the joints and cut tightly around windows and doors. Gaps at this stage become thermal bridges later, so boards are fitted with zero tolerance for gaps.
Layer 1Detailing at Openings
Corners, window and door reveals, and any wall penetrations are fitted with purpose-made beads and profiles, keeping the insulation envelope continuous rather than leaving weak points where heat can escape.
DetailingReinforced Base Coat & Mesh
A polymer-modified base coat is applied over the insulation boards with alkali-resistant mesh embedded into it, giving the system structural strength and crack resistance ahead of the finish coat.
Layer 2Finish Render Application
The chosen render finish — commonly silicone, for its flexibility and water resistance — is applied over the base coat in your chosen colour and texture, completing the insulated render system.
FinishSurvey & Assessment
Walls and ceilings are checked for hollow or loose plaster, damp, staining and movement cracks before we quote — a fair price is only possible once we know exactly what we're dealing with.
AssessmentPreparation
Loose and hollow material is removed back to a sound surface, dust and contamination cleaned off, PVA or bonding agent applied where needed, and metal angle beads fixed to external corners for crisp, durable edges.
PrepBase Coat (Where Needed)
Where the wall isn't already a suitable surface to skim onto — bare brick or blockwork, or freshly plasterboarded stud walls — a base coat is applied and ruled level first, giving the finish coat a flat, even surface to sit on.
Layer 1Finish Skim Coat
A smooth finish coat, around 2mm thick, is applied in two passes and worked with a trowel to a hard, even finish free of trowel marks and air bubbles.
FinishDrying & Handover
Fresh plaster needs time to properly dry out before decorating — as a rough guide, allow around a week per coat in normal conditions. We advise on the right drying conditions and the right time for a mist coat before we leave site.
HandoverAssessment
We tap test the affected area to find hollow or blown sections, check any cracks to judge whether they're cosmetic or a sign of something more serious, and look for signs of moisture getting in behind the render.
AssessmentCutting Back to Sound Material
Damaged render is cut out back to solid, well-bonded material — or bare substrate where necessary — so the repair has a proper base to key into rather than sitting on top of a failing layer.
PrepAddressing the Underlying Cause
Where damp or another underlying issue caused the render to fail, that's dealt with first. Patching over an unresolved cause just delays the same problem coming back.
FoundationRe-Rendering the Area
The repair area is built back up using the same or a compatible render system, matched to the thickness and build-up of the surrounding render.
Layer 1Blending the Finish
The new render is finished to match the surrounding texture and colour as closely as possible, so the repair sits into the wall rather than standing out — though some variation is normal with render that's weathered over time.
FinishSurvey & Condition Check
We check the wall's construction and pointing, and look for any damp course or coping issues that need addressing before rendering — garden walls are exposed on both faces and closer to the ground, so this matters more than on a house elevation.
SurveyPreparation
Loose material and failing pointing are repaired, the surface is cleaned down, and coping or capping details are checked so water is shed away from the render rather than sitting on top of the wall.
PrepBase Coat & Reinforcement
A base coat, reinforced with mesh where needed, is applied to give the render a sound structural foundation on both faces of the wall.
Layer 1Finish Coat
The chosen render system is applied to either match your property's existing render closely, or deliberately contrast with it to frame the garden as its own space.
FinishDetailing & Handover
Copings, corners and edges are finished cleanly and the site is left tidy before we hand the wall back to you.
HandoverReady to start your project?
Send us a few details and photographs and we'll get in touch about your project.