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External Insulation Dublin — SEAI Approved Contractors

Upgrade your home's thermal performance with high-end external wall insulation. Save thousands on energy bills with SEAI grants of up to €8,000.

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Modern Dublin home with smooth cream external insulation render — SEAI external wall insulation Dublin
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history20+ Years Expertise
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Dublin's SEAI Approved External Wall Insulation Contractors

External Insulation Dublin is a Dublin 2 based EWI specialist serving homeowners across the city and the wider Greater Dublin Area. We have installed external wall insulation on more than 1,200 Irish homes over 20+ years, helping families cut heating bills by 25-45%, raise their BER rating and unlock SEAI grants of up to €8,000.

Our crews fit NSAI-approved EWI systems engineered for Irish weather, finished in silicone and silicone-acrylic renders that resist coastal weathering. We focus on doing one thing extremely well — external wall insulation in Dublin, installed correctly first time, with all the SEAI paperwork handled on your behalf. You only see your home once at hand-over — warm, modern and ready for winter.

From terraced homes in Ranelagh and Stillorgan to coastal semi-detached properties in Blackrock and period villas in Dalkey, we tailor every external insulation install to the building stock. If you want a free, no-obligation quote for home insulation in Dublin, call us on +353 1 230 8892 or use the contact form below.

Our External Wall Insulation Services in Dublin

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SEAI External Insulation Grants

We handle the complex paperwork for you. Homeowners in Dublin can access grants of up to €8,000 for external wall insulation, significantly reducing the initial investment of making your home energy efficient.

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External Wall Insulation Across Dublin

We are Dublin's premier choice for residential and commercial insulation projects, specialising in the unique architectural requirements of South Dublin coastal regions.

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Blackrock

Specialised damp-resistant rendering for coastal properties in the Blackrock area.

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Dalkey

Preserving the aesthetic of historic Dalkey while maximising thermal gains.

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Map showing the Dublin coverage area for external wall insulation projects
Currently working in Dun Laoghaire

Our Recent Transformations

See the difference professional external insulation makes to Irish homes.

Semi-detached Stillorgan home after external wall insulation render
Before & After

Semi-Detached, Stillorgan

Terraced Ranelagh house with external wall insulation finish
Before & After

Terraced Home, Ranelagh

Malahide bungalow upgraded with external wall insulation
Before & After

Bungalow, Malahide

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“The house is so much warmer now, and the finish is impeccable. The team helped us through the entire SEAI grant process.”

— Aoife M., Blackrock
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“Professional from start to finish. Our heating bills have dropped by almost 40% since the insulation was installed.”

— Liam O'B., Dalkey
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“Incredible service. They were clean, fast, and the new render makes the house look like a new build!”

— Sinead K., Stillorgan

Why External Wall Insulation Is Worth It in Dublin

External wall insulation is the most effective wall upgrade for Irish homes. It cuts U-values, eliminates cold bridging and protects the structure — all without losing a single inch of internal floor space.

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Lower U-value, lower bills

Wall U-values typically drop from around 2.0 W/m²K to 0.27 W/m²K — a 7x improvement. Heating bills fall by 25-45% on most pre-2011 Dublin homes.

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Up to €8,000 SEAI grant

Detached homes qualify for the maximum €8,000 SEAI external wall insulation grant. Apartments and mid-terrace homes claim €3,500.

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Higher BER, higher value

External insulation typically lifts a Dublin home from a D2/E1 BER to a B3 or better, boosting resale value and rentability.

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Protects the structure

EWI keeps the masonry warm and dry, preventing cold bridging, surface condensation and the mould growth that follows.

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Cuts carbon by ~2 tons/year

External insulation is one of the highest-impact retrofit measures in Ireland's path to a Climate Action Plan-compliant housing stock.

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Modern finish, kerb appeal

A clean silicone-acrylic render refreshes tired pebbledash, painted block or brick — without losing the character of period properties.

Frequently Asked Questions

How much does external insulation cost in Dublin?

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External wall insulation in Dublin typically costs €100-€110 per m² installed, including system, mesh, render, scaffolding and labour. For a standard three-bed semi-detached Dublin home this works out at roughly €18,000 before grants, dropping to about €12,000 net of the typical €6,000 SEAI grant. Apartments and mid-terrace homes start nearer €8,500 pre-grant; large detached properties run up to €26,000. Coastal homes in Blackrock or Dalkey often need silicone render finishes, which can add 5-10% to the headline cost. We provide a fixed quote after a free site survey so you know the exact figure before any work begins.

What SEAI grants are available for external wall insulation?

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SEAI runs the Better Energy Homes scheme, which pays external wall insulation grants of €3,500 for apartments and mid-terrace homes, €6,000 for semi-detached and end-terrace homes, and up to €8,000 for detached houses. To qualify, the home must have been built and first occupied before 2011, and the work must be carried out by an SEAI registered contractor. As an SEAI registered installer we handle the grant application, BER assessment booking and post-works paperwork on your behalf, so you only see the net figure once the grant has been deducted from the final invoice.

Do I need planning permission for external wall insulation in Dublin?

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In most Dublin cases external wall insulation is treated as exempted development under Class 2 of the Planning and Development Regulations, so you do not need planning permission. The exceptions are protected structures, properties inside an Architectural Conservation Area (ACA), and any work that materially alters the character or appearance of the building. If your home is listed on the Dublin City Council or Dún Laoghaire-Rathdown record of protected structures, or sits within an ACA such as parts of Dalkey or Ranelagh, we recommend a quick pre-planning consultation with the local authority before signing off on a finish.

Is external wall insulation worth it?

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For most pre-2011 Dublin homes external wall insulation is the single highest-impact retrofit you can make. Wall U-values typically fall from around 2.0 W/m²K to 0.27 W/m²K, cutting heating bills by 25-45% and lifting the BER from a D2 or E1 up to a B3 or better. That BER uplift directly raises resale value and rentability. Combined with the SEAI grant the simple payback period is usually 7-10 years, and the wall stays warm and dry afterwards, which dramatically reduces surface condensation and the mould growth that follows it. For solid-wall and early cavity homes there is no more effective wall upgrade.
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Get Your Free External Insulation Quote

Fill out the form below or call us directly. We guarantee a response within 1 hour during business hours.

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Our Office

77 Sir John Rogerson's Quay,
Grand Canal Dock, Dublin 2, D02 VK60

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Opening Hours

Mon-Sun: 8:00 AM - 8:00 PM