External Wall Insulation in Bray, Co. Wicklow
Protect your Bray home against coastal dampness, sea winds, and winter heat loss. Our own full-time crews install the NSAI-certified Baumit external wall insulation system with bespoke aluminium sills by Cills.ie, locking in comfort year-round — with up to €8,000 in SEAI grants deducted straight from your invoice.
Bray External Wall Insulation & SEAI Grants
Projects typically start from €180 to €220. Isotherm deducts the SEAI grant directly from your invoice at source.
For homes close to the sea, we apply specialized silicone-based acrylic renders (such as Baumit SilikonTop) to withstand coastal moisture, heavy driving salt rain, and prevent algae staining.
For window cills where water runoff is high, we fit bespoke aluminium over-sills manufactured with a special protective powder coating from Cills.ie to guarantee 100% watertight drainage and long-term durability.
*Starting figures vary depending on project extras, architectural detailing, finish selection, silicone-based acrylic render requirements for sea-facing locations, and special powder coating for window cills. Fixed quotation provided after a free on-site survey.
Insulating Bray Estates & Coastal Properties
Bray combines coastal exposure with diverse building eras, from Victorian solid brickwork to 1970s hollow block and 1990s suburban estates.
1980s and 1990s semi-detached homes with uninsulated concrete block cavity walls. External insulation seals heat in the masonry, curing cold bedrooms and cutting fuel bills by up to 45%.
Mature residential homes and terrace dwellings with hollow concrete blockwork. External insulation stops cold air infiltration and elevates energy performance to B1/A3 ratings.
Detached residences and coastal homes exposed to Irish Sea gale winds and salt moisture. Baumit SilikonTop silicone render provides superior rain repellency and algae resistance.
Real project photos across Bray
Every home is surveyed, scaffolded, wrapped with certified Baumit graphite EPS, and completed with custom aluminium window sills by our own direct crews.
Southern Cross & Boghall Road, Bray
1980s 4-Bed Semi-Detached House
System: Baumit ProSystem 120mm Graphite EPS
Finish: Baumit SilikonTop 1.5mm (Chalk White 0019)
Sill Detail: Bespoke RAL 7016 Anthracite Sills by Cills.ie
BER Upgrade: E1 (332 kWh/m²/yr) → B1 (84 kWh/m²/yr)
Solid block gable and front elevation wrapped. Coastal moisture penetration eliminated; heating oil usage cut by 48%.
Little Bray & Dublin Road Corridor, Bray
1970s 3-Bed End-of-Terrace Home
System: Baumit ProSystem 100mm Graphite EPS (λ 0.031)
Finish: Baumit SilikonTop 1.5mm (Oatmeal Cream 0244)
Sill Detail: Custom aluminium window over-sills with welded end caps by Cills.ie
BER Upgrade: E2 (355 kWh/m²/yr) → A3 (68 kWh/m²/yr with Attic Upgrade)
Uninsulated hollow block exterior wrapped. Severe cold draughts through bedroom walls eliminated permanently.
Old Conna & Killarney Road, Bray
1980s 4-Bed Detached Residence
System: Baumit OpenSystem Breathable Mineral Composite Wrap
Finish: Baumit NanoporTop Self-Cleaning Silicone (Pebble Grey 0876)
Sill Detail: Aluminium sills fabricated by Cills.ie in RAL 9005 Jet Black
BER Upgrade: D1 (250 kWh/m²/yr) → B1 (76 kWh/m²/yr)
Four exterior elevations fully wrapped. Standoff brackets installed for alarm units, gas meter, and garden taps.
Baumit, Sto & Weber external insulation systems
We install full NSAI-certified external wall insulation systems engineered for coastal wind-driven rain and Irish weather extremes.
Our primary system for Bray homes. High-density graphite EPS (λ = 0.031) or breathable openTherm mineral boards, finished with self-cleaning Baumit SilikonTop silicone render that resists salt spray, coastal algae, and dirt.
Cement-free, highly flexible external wall insulation system with outstanding impact resistance (up to 15 Joules) and self-cleaning Lotus-Effect silicone facade finishes for high-exposure mountain and coastal properties.
NSAI-approved mineral wool and EPS insulation systems suitable for solid concrete block, stone cottages, and modern blockwork with breathable, weather-tight silicone and acrylic topcoats.
Common questions from Bray homeowners
How much does external wall insulation cost in Bray in 2026?+
A job typically starts from €180 to €220. Final figures depend on extras, architectural details, and chosen finishes — such as whether silicone-based acrylic render is required for homes close to the sea to withstand coastal salt air, and whether window cills subject to high water runoff require special powder coating. As an SEAI Registered Contractor (#10423), Isotherm deducts your SEAI grant (up to €8,000 for detached, €6,000 for semi-detached/end-terrace, €3,500 for mid-terrace, and €3,000 for apartments) directly from your invoice at source.
How do your house wraps protect Bray homes against coastal driving rain?+
Bray’s position on the Irish Sea exposes exterior facades to driving rain and salt air. We install NSAI-certified Baumit systems incorporating high-density graphite EPS and Baumit SilikonTop silicone render. The render is hydrophobic (water-repelling) and microporous, ensuring exterior moisture beads and runs off while interior vapour escapes freely, preventing damp, salt efflorescence, and algae bloom.
How fast can Isotherm crews travel from Inchicore to Bray?+
Our operations depot and fabrication workshop are located at Unit 20, Westlink Industrial Estate, Kylemore Road, Inchicore, Dublin 10 (D10 TD35). Taking the M50 South and N11 / M11 corridor, our installation crews reach Bray in just 25 to 28 minutes, providing daily supervision, responsive scheduling, and direct project control.
Do I need planning permission for external wall insulation in Bray?+
For the vast majority of suburban housing estates across Bray (including Southern Cross, Fassaroe, Boghall, and Duncairn), external insulation is Exempted Development under Section 4(1)(h) of the Planning and Development Act 2000. For Victorian properties along the Bray Seafront or listed Protected Structures within the Main Street conservation zone, planning consultation with Wicklow County Council is required. We assess planning exemption criteria during your site survey.
How do you handle window sills on Bray house wraps?+
Adding 100mm to 150mm of external insulation extends past original concrete window sills. We install bespoke powder-coated aluminium window over-sills manufactured by our sister workshop, Cills.ie. Each sill features welded watertight end-caps, thermal separation pads, and deep drip channels to prevent coastal rainwater from running back onto the new render.
Can Bray homeowners claim the SEAI grant if they previously had cavity bead installed?+
Yes. Under the SEAI 2026 'second wall measure' regulations, homeowners who previously claimed a cavity bead injection grant are fully eligible to claim the €6,000 (semi-d) or €8,000 (detached) external wall insulation grant to reach A2/A3 building energy performance.
Book your free on-site survey in Bray
Our direct installation crews cover Southern Cross, Boghall, Little Bray, Old Conna, and all Bray areas. Up to €8,000 in SEAI grants deducted straight from your invoice.
