Leading the UK External Wall Insulation Industry
The Insulated Render and Cladding Association (INCA), is the recognised trade association for the External Wall Insulation (EWI) industry, representing the major system designers, a nationwide network of specialist installers and key component suppliers.
Welcome To INCA – The Insulated Render and Cladding Association. Formed in 1981 to represent the External Wall Insulation (EWI) industry throughout the UK and to promote technical excellence, high quality and best practice throughout the industry.
Mission Statement: Representing members of the External Wall Insulation industry through technical excellence, effective collaboration, strong marketing, communication and member benefits.
In order to join INCA, companies must satisfy the criteria for membership. This gives clients using an INCA member the confidence they are working with a reputable Specialist Contractor that meets recognised standards of competence. So the next time you choose an EWI partner look for an INCA member and the logo you can trust.
INCA – Connecting The External Wall Insulation Industry
INCA connects customers with system manufacturers and designers, installation contractors and associated organisations. Find out more about External Wall Insulation and how INCA members can help you.
INCA EWI Directory – Find An INCA Member
Whether you are a private home owner, private or social landlord, Architect / specifier or a main contractor, considering an EWI system then make sure you connect with an INCA system designer or installer.
INCA – Recognising Achievement
INCA Awards 2025 – Now Open
The 2025 INCA Awards is back in the grand ballroom of the Queens Hotel in the very heart of Leeds city centre on Thursday 6th November 2025 – drinks reception starts at 18:45 with the event itself stating at 19:45.
Booking for the event is now open and as usual we have three options – a premium table of 10, a standard table of 10 or individual tickets. Tickets are limited so early booking is recommended to avoid disappointment.
We will be judging against 11 project categories and entry is very simple – you will only need to decide if your project is new build or refurbishment, low rise (below 11m) or high rise and the type of finish (all render or brick effect / mixed).
INCA Awards Winners 2024
Below are a selection of the winners of the 2024 INCA Awards or you can visit the winners page … highly impressive we think you’ll agree!
Oak Grange School Derby
Wetherby Building Systems
Rendserve Ltd
Bull Bridge
Wetherby Building Systems
TLS Construct (SW) Ltd
Cortland Broad St
Aliva UK
PIC Construction Group
Pembroke Dock
Sto Ltd
The Meadows
PJ Mear Ltd
Orbit Housing
Structherm Ltd
SERS & Aspiration Group
Boardwalk
Alsecco UK
Kingswood Estate
Soltherm
PJ Mear
Clare Road (after)
Structherm Ltd
Victoria House.
Alsecco UK
Complete Wall Solutions
Waterloo Rd, Southport
Soltherm Ltd
Morriss House
Aliva UK
Thank You To Our Sponsors In 2024
INCA – Keeping The Industry Informed
INCA keeps you up to date with all the latest news, guidance, grants and regulations relating to External Wall Insulation systems, render and cladding in the UK.
INCA is at the forefront of transforming the energy efficiency of homes and businesses in the UK. Representing the EWI industry we seek to influence and support Government policy making decisions.
Sign up to the weekly INCA newsletter and important industry updates by email: