Licata Retrofit EWI Systems
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Sectors — Retrofit

Retrofit & Solid Wall Insulation

Complete EWI systems for the decarbonisation of the UK's solid wall housing stock — supporting councils, housing associations, landlords and installers through funded retrofit programmes.

External Wall Insulation Solid Wall Homes Social Housing PAS 2035 Compatible BBA & KIWA — Selected Systems
The Retrofit Challenge

Insulating Britain's hardest-to-treat homes

Around 8 million UK homes have solid walls — built before cavity wall construction became standard — and they are among the least energy efficient in Europe. For these properties, external wall insulation is the single most effective fabric measure available, typically cutting heat loss through walls by more than half.

EWI wraps the building in a continuous layer of insulation, finished with render or brick slips. Beyond the energy savings, it transforms the external appearance of tired housing stock, protects the structure from weathering, and eliminates the disruption and floor-space loss of internal insulation.

Licata supplies complete EWI systems for retrofit — from EPS systems for standard projects to non-combustible mineral wool systems where fire classification requirements apply — backed by U-value calculations, condensation risk analysis and specification support on every project.

Compliance Requirements

What funded retrofit requires

PAS 2035 — Retrofit Framework
All publicly funded domestic retrofit must follow PAS 2035 — requiring a Retrofit Assessor, Retrofit Coordinator, whole-house assessment and medium-term improvement plan before any measure is installed.
PAS 2030 — Installer Certification
EWI installation under funded schemes must be carried out by a PAS 2030-certified installer. Certification covers the installation process, quality management and on-site competence.
TrustMark Registration
Installers delivering government-funded work must be TrustMark-registered. TrustMark registration is a prerequisite for ECO and Warm Homes-funded EWI measures.
System Certification
Funders and warranty providers typically require third-party certified EWI systems. Licata holds BBA and KIWA certification on selected EWI systems — speak to our technical team to confirm certification for your specified system.
The Funding Landscape

A market in transition — and growing

The UK's retrofit funding landscape is shifting from supplier-obligation schemes towards direct government investment delivered through councils and housing associations. The Warm Homes Plan commits significant public funding to upgrading millions of homes — with solid wall insulation central to delivery.

For social landlords, contractors and installers, this means growing pipelines of EWI work procured through local authorities and registered providers — with compliance, system certification and supply chain reliability more important than ever.

Licata supports retrofit delivery partners with system specification, compliance documentation and reliable supply from six UK branches.

Warm Homes Plan
The government's flagship programme for home energy upgrades — funding insulation, heating and renewables through local authority and social housing delivery routes, including the Warm Homes: Social Housing Fund and Warm Homes: Local Grant.
ECO4
The Energy Company Obligation continues to fund retrofit measures for low-income and vulnerable households through to its scheduled end, with solid wall insulation a key eligible measure for pre-1950 properties.
Social Housing Decarbonisation
Registered providers are investing in fabric-first retrofit across their stock to meet EPC targets and net zero commitments — with EWI the principal measure for solid wall and non-traditional construction archetypes.
Private & Self-Funded
Beyond funded schemes, private homeowners and landlords invest in EWI for energy savings, comfort and external refurbishment — supported by Licata's property owner guidance and approved installer network.
EWI Systems for Retrofit

Masonry EWI systems for solid wall homes

Licata's masonry EWI systems cover the full range of retrofit requirements — EPS insulation for cost-effective standard projects, mineral wool where non-combustibility or vapour permeability is required, and a choice of silicone render, clay brick slip or mineral brick slip finishes.

Masonry Mineral Wool Silicone Render
LIC-EWI-001 · Mineral Wool
Masonry — Mineral Wool — Silicone Render

Non-combustible mineral wool insulation with breathable silicone render finish — the specified choice for social housing and projects requiring vapour permeability.

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Masonry Mineral Wool Clay Brick Slips
LIC-EWI-002 · Mineral Wool
Masonry — Mineral Wool — Clay Brick Slips

Genuine fired clay brick slips on mineral wool — retains a traditional brick appearance, ideal for conservation-sensitive streets and planning requirements.

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Masonry Mineral Wool Mineral Brick Slips
LIC-EWI-003 · Mineral Wool
Masonry — Mineral Wool — Mineral Brick Slips

Lightweight mineral brick slips on mineral wool insulation — brick appearance with reduced weight and faster installation than clay.

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Masonry EPS Silicone Render
LIC-EWI-004 · EPS
Masonry — EPS — Silicone Render

Cost-effective EPS insulation with silicone render finish — the workhorse system for standard retrofit projects on houses and low-rise blocks.

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Masonry EPS Clay Brick Slips
LIC-EWI-005 · EPS
Masonry — EPS — Clay Brick Slips

EPS insulation with genuine clay brick slip finish — traditional brick aesthetics at a competitive system cost for low-rise retrofit.

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Masonry EPS Mineral Brick Slips
LIC-EWI-006 · EPS
Masonry — EPS — Mineral Brick Slips

EPS insulation with lightweight mineral brick slips — the lightest brick-finish build-up in the range, fast to install at scale.

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Facade Refurbishment

Render systems for existing facades

Not every retrofit project requires insulation. Where the goal is facade renewal — over tired pebbledash, failing paint or cracked render — Licata's refurbishment render systems restore and protect existing walls without a full EWI build-up.

Existing Pebbledash Render System
Render System · Refurbishment
Existing Pebbledash Render System

Re-render directly over sound pebbledash — bonding primer, levelling coat and reinforced basecoat with a silicone or acrylic finish.

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Existing Render Paint System
Render System · Refurbishment
Existing Render / Paint Render System

Overcoat sound existing render or painted finishes — restoring weather protection and appearance without removal of the existing coating.

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Elastomeric Render System
Render System · Refurbishment
Elastomeric Render System

Crack-bridging elastomeric basecoat system for facades with microcracking — flexible, cement-free and ideal for restoring cracked render.

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Why Licata for Retrofit?

A supply partner built for retrofit delivery

Certified Systems for Funded Work

BBA and KIWA certification held on selected EWI systems — supporting the system certification requirements of funders, warranty providers and PAS 2035 retrofit designers. Our technical team confirms the certification position for every specification.

U-Values and Condensation Risk on Every Project

Project-specific U-value calculations and condensation risk analysis are provided as standard — confirming the insulation thickness required to hit target U-values and demonstrating no interstitial condensation risk for the retrofit design.

Six Branches — Reliable Supply at Scale

Retrofit programmes run on schedule when materials arrive on schedule. With six branches across England holding stock of core EWI products, Licata supports multi-property programmes with consistent, local supply.

Full Finish Flexibility

Silicone and acrylic renders in over 600 colours, plus clay and mineral brick slips — giving social landlords and planners the flexibility to match existing streetscapes or refresh entire estates with a coherent new identity.

Installer Training and Site Support

Application training for installation teams, site visits during installation, and a technical helpline throughout — helping installers deliver consistent quality across high-volume retrofit programmes.

Refurbishment Options Beyond EWI

Where insulation isn't required, our refurbishment render systems renew tired facades over pebbledash, paint and existing render — giving delivery partners a single supplier across the full scope of external works.

Compliance & Certification

Licata EWI systems support PAS 2035 retrofit delivery, with BBA and KIWA certification held on selected systems. Speak to our technical team to confirm the certification position for your specified system.

PAS 2035 Compatible
BBA — Selected Systems
KIWA — Selected Systems
U-Value Calculations
Condensation Risk Analysis

Planning a retrofit programme?

Our technical team supports councils, housing associations, contractors and installers with specification, compliance documentation and supply planning. Get in touch to discuss your project.