Installation

External Wall Insulation Installed Properly

External wall insulation, rendering systems and retrofit upgrades delivered with a practical understanding of system build-up, detailing and long-term performance.

Correct installation starts before the first board goes on the wall.

External wall insulation is a full system, not a decorative finish. The substrate, fixing method, insulation type, detailing, mesh, basecoat and render all need to work together.

We support installation work with a practical understanding of EWI systems, site conditions and the details that often decide whether a job performs properly over time.

LicataWeberSPS EnvirowallEWI ProSilicone RenderMonocouche

Installation scope

Substrate preparationAssessment and preparation of existing surfaces before system installation begins.
Insulation board installationAdhesive and fixing approach suited to the substrate and system specification.
Basecoat and reinforcementMesh, beads, corners and basecoat built up carefully to protect the system.
Render finishSilicone, monocouche or other system-approved finishes selected around the property and project goals.
Scaffold coordinationAccess arranged where needed so installation can be completed safely and properly.

The details that protect the system long after the scaffold comes down.

A strong EWI installation is not just about getting insulation onto the wall. It depends on preparation, sequencing, junction detailing and using the correct components as a full system.

Substrate readiness

We check surface condition, existing coatings, friability, flatness and areas that may need stabilising before the system build-up begins.

Openings and junctions

Windows, doors, sills, verges, plinths and roofline junctions are where many systems fail. These areas are considered early, not treated as afterthoughts.

Finish selection

Render texture, colour, exposure and maintenance expectations are discussed so the finished system suits both the building and the client’s priorities.

Standards-led workmanship

Our installation work is delivered to TrustMark-aligned and PAS 2030/2035-informed standards, with particular focus on detailing, moisture risk, thermal continuity and system manufacturer requirements.

  • System components kept within specification
  • Fixing and adhesive approach matched to substrate
  • Reinforcement and beadwork checked before finish coat
  • Handover guidance provided at completion

From survey to handover

A controlled approach keeps the project clear, practical and less stressful.

01

Survey

We review wall type, condition, access, openings, details and suitability before advising on the correct route.

02

Specification

The system, finish, insulation thickness and key details are clarified before work starts.

03

Installation

Boarding, fixing, meshing, basecoat and finishing are completed with attention to the details that matter.

04

Handover

Final checks, site clean-up and clear aftercare guidance once works are complete.

Installation questions

Do you arrange scaffolding?+
Yes, where scaffolding is needed we can coordinate it as part of the wider project scope.
How long does EWI installation take?+
Timescales depend on property size, access, system and weather. A typical residential project is discussed clearly during the quote stage.
Can you install different EWI systems?+
Yes, we have hands-on experience with systems including Licata, Weber, SPS Envirowall and EWI Pro.
Do you work across London and Essex?+
Yes. We primarily serve London, Essex and surrounding areas.

Need specialist input?

Speak with Andrra Property Solutions about your property, system condition or project scope. We will tell you clearly what we can help with and what the next step should be.