Insulation Boards
Insulation Boards Installation – the heart of every EWI system
The insulation board is what actually keeps heat inside the building. We install EPS, mineral wool and phenolic boards as part of a complete external wall insulation system.
About this service
Insulation boards are bonded to the external wall using adhesive and then mechanically fixed for security. The board type is chosen for the property: EPS for cost-effective performance, mineral wool for fire performance and breathability, and phenolic where slim boards with high performance are needed.
Correct fixing pattern, joint detailing and beading around openings are critical – we install to recognised EWI standards.
What's included
- Board type advice based on the building
- Bonding adhesive and mechanical fixings
- Correct fixing pattern and density
- Bead and trim detailing around openings
- Joint detailing and gap-filling
- Base coat and mesh ready for finish render
Who it's for
- Homeowners adding insulation to solid-wall properties
- Landlords improving energy performance
- Commercial owners specifying full EWI build-ups
- Architects and developers integrating EWI into projects
Common project types

Why choose Limar Construction
- 10+ years of EWI and render experience
- Public Liability Insurance held
- Skilled installation team, one accountable contact
- Full project delivery – prep, install, finish, sign-off
- Clean working practice, properties left tidy
- Fair, transparent quotes – no surprise costs
Key benefits
Real thermal performance
Properly specified and installed boards deliver real savings.
Choice of board type
EPS, mineral wool or phenolic to suit the property.
Fire-rated options
Mineral wool boards for fire-sensitive applications.
Slim-line options
Phenolic boards where space is limited.
Foundation for clean finish
Well-installed boards = a flat, even render.
Long service life
Decades of performance from a correctly installed system.
Locally rooted, nationally available
Insulation boards installed as part of EWI systems on properties in Stratford-upon-Avon, the wider Warwickshire region, and on larger schemes anywhere in the UK.
Insulation Boards – common questions
Short, useful answers about this service. For more, see our full FAQ page.
EPS is the most cost-effective and works well on most homes. Mineral wool is fire-resistant and breathable, which suits taller buildings and certain wall types. Phenolic gives the highest performance per millimetre, useful where boundary or design space is tight.
Boards are bonded with a cement-based adhesive applied either as dabs and ribbon or as a full bed, and then mechanically fixed with appropriate anchors – usually 6–8 per board, depending on the system and exposure.
Modern EWI fixings are designed with low thermal conductivity. Used at the right density and pattern, their impact on overall U-value is minimal.
Free Quote · No Obligation
Get a free, no-obligation quote
Send us photos of your property on WhatsApp and we'll come back with a clear, fair price. Residential and commercial projects across the UK.
