Why Join INCA?

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 throughout the UK. But why join INCA?

About INCA – The Insulated Render & Cladding Association

INCA, the Insulated Render and Cladding Association, was formed back in 1982 to represent a then relatively new external wall insulation industry in the UK.

Back then, with EWI being such a new concept, much of the focus was on getting the system recognised, accepted and established within the UK construction industry.

As the EWI industry has expanded and evolved so too has the role of INCA. Today it is recognised by Government as the national trade association for the external wall insulation industry in the UK and whilst it is still very much focussed on promoting the benefits of the systems and finishes, it’s now also about driving best practice, quality assurance and influencing government policy and decisions which impact the industry as a whole and hence benefit the membership.

The current INCA mission says it all: To represent members of the External Wall Insulation industry through technical excellence, effective collaboration, strong marketing, communication and member benefits.

Who INCA Represent And How We Work

As a body INCA represents all the major EWI system designers in the UK along with a nationwide network of specialist installers and all the key component suppliers to the external wall insulation (EWI) industry.

Collectively the INCA membership are delivering high quality new build and refurbishment projects in both the residential and non-residential sectors across the UK.

It is the first point of contact for Government and other key stakeholders and has active dialogue with all relevant governing departments and organisations including: BEIS, CLC, BEEF, EEIG, BUILDUK, CITB, SWIGA, Trustmark amongst others.

The managing volunteer INCA board is made up of top industry professionals from across all sectors of the membership. The board are supported by a professional, industry experienced secretariat and a number of highly active member committees including:

  • Technical: To maintain recognition of INCA as the technical experts for the industry and provide this support for the benefit of its members.
  • Marketing: To support the INCA strategy and to promote the industry through campaigns and communication to members, influencers and specifiers.
  • Training: To develop and deliver industry recognised and accredited EWI training and competency standards.
  • Stakeholder Engagement: To proactively and effectively lobby, support and engage with Government departments, regulatory bodies and key market influencers.

We also have a Scottish and a Welsh committee to focus on the market challenges within these specific geographical areas.

Nationally, INCA fully supports the Governments commitment to Net Zero carbon emissions by 2050 and EWI has a hugely important part to play in this drive and in 2024 we published our Core Messages For Retrofit. The simple fact that domestic dwellings alone account for around 18% of carbon emissions demonstrates just how important EWI is and will continue to be in both the retrofit and new build markets.

INCA is therefore committed to continue to provide its members with the guidance and support they need and to help them set the benchmark for years to come by delivering highest quality installs of energy efficient, visually stunning and technically excellent projects.

Benefits Of INCA Membership

Displaying the INCA member logo therefore shows the industry that you are a professional organisation who are committed to quality and best practice in all areas of business. It provides the client with complete confidence and assurance.

Membership will allow you to apply to join the Board of Directors or to participate in any of the committees and hence play an active role in directly influencing the industry at the highest levels. It also gives you access to all the latest news and industry developments, the INCA Code of Professional Practice, all technical guidance documentation and a forum for sharing best practice.

Membership also allows you to take full advantage of the marketing and promotional work that INCA do meaning more business for you. But, most importantly perhaps, it provides a platform for your voice to be heard and an opportunity for you to help shape the future of our industry. Download the INCA Memebr Benefits PDF >


– Use of the INCA brand / logo on digital media & communications
– Company details displayed on the INCA website providing exposure to prospective clients
– Opportunity to publish case studies
– Promotion of press releases


– Guarantees available through SWIGA – the only dedicated EWI guarantee provider
– Free initial technical & compliance consultation
– Up to 20% discount on CHAS accreditation packages
– Up to 20% discount on BS Standards via BSI
– Free, unlimited credit reports
– Contractual and legal advice
– Employment HR H&S adviceline
– 30% discount on construction, H&S and environmental manuals


– Industry weekly news bulletin
– Social media updates / shares – Linkedin
– Social media updates / shares – Twitter
– Entry into INCA Awards & associated advertising and promotional campaigns
– Case studies promotional campaigns
– Industry, best practice and quality promotional campaigns


– INCA Technical documentation
– Bespoke technical advice and support
– Meetings and seminars to discuss best practice


– Collective industry voice representing the EWI industry to Government, leading client organisations and other stakeholders
– Targeted lobbying through active partnerships with BuildUK, EEIG, BEEF, CLC, SWIGA, Trustmark and other cross industry organisations
– Opportunity to join the INCA Board of Management – Help shape the industry through participation in dedicated trailblazing committees: Technical, Marketing, Training, Stakeholders, Scottish, Welsh
– Trade Association member of Build UK – representing the contracting supply chain in construction


– Regular events to encourage collaborative working across the sector and to discuss industry issues and promote best practice
– Entry into the prestigious INCA Awards recognising EWI innovation and excellence
– Regular member meetings and forums to discuss the industry issues that matter

INCA Awards

In addition to the benefits listed above and the various member events, meetings, forums and conferences held each year, the highlight of the calendar has to be the annual INCA Awards where external wall insulation excellence is recognised and rewarded and the very best in EWI is showcased for all to see.

Award nominations are free and open to all members with categories representing all sectors of the industry.

Judging is by an independent panel of industry experts and winners are announced at a glittering “black tie” awards ceremony with winners promoted across the industry.

You can Read More About THe INCA Awards Here >.

Criteria For Joining INCA

In order to join INCA, companies must satisfy the criteria for membership. This gives clients using an INCA member the confidence and assurance that they are working with recognised system designers and component suppliers along with highly reputable specialist contractors that meet industry recognised standards of competence. INCA members have:

  • a proven track record of technical delivery
  • a commitment to health and safety
  • CSCS (or affiliated scheme) carded workforce
  • a trained and qualified workforce and an ongoing investment in training and qualifying the workforce
  • a solid financial foundation and proven trading record
  • an accredited quality management system
  • adequate levels of insurance
  • access to up-to-date guidance and information and wide-ranging business support including insurance-backed guarantees
  • Access to professional advice on employment, health and safety, legal and contractual, tax, and training matters
  • Abide by the INCA Code of Professional Practice

For more information Download the full INCA Membership Criteria >


Joining INCA has never been easier – simply fill out the online form (or email us at info@inca-ltd.org.uk for an offline copy). Fill in as much information as you can but don’t worry about uploading any doccumentation at this stage – after an initial review of your application we will then contact you to request copies of any relevent requirements.


 ~ INCA Directory Listing
 ~ Industry Representation
 ~ Member Discounts
 ~ Networking Events
 ~ Technical Support
 ~ Marketing Opportunities

Cost £4,620 pa (pro-rata)


 ~ INCA Directory Listing
 ~ Industry Representation
 ~ Member Forums
 ~ Member Discounts
 ~ Networking Events
 ~ Technical Support

Cost £995 – £1,725 pa (pro-rata)


 ~ INCA Directory Listing
 ~ Marketing Opportunities
 ~ Industry Representation
 ~ Networking Events
 ~ Technical Support
 ~ Member Discounts

Cost £1,725 pa (pro-rata)

More Information

Alternatively, if you would like some more information or to arrange for a call / meeting to discuss membership further simple let us know by using teh form below and we’ll get back to you without delay – thanks for your interest in INCA.