Isotherm Logo

External wall insulation in Dún Laoghaire

Direct external wall insulation contractor serving Dún Laoghaire, Co. Dublin. Certified Baumit systems with direct SEAI grant deduction.

We install certified Baumit external wall insulation systems across Dún Laoghaire, Glenageary, Glasthule, Sallynoggin, and Sandycove. Direct installation crews, coastal silicone render protection, and SEAI grants deducted directly from your invoice.

Local Housing Stock
Dún Laoghaire property profiles
Dún Laoghaire features a mix of Victorian solid brick terraces, mid-century concrete block houses in Sallynoggin, and detached suburban residences in Glenageary. Proximity to the coast exposes facades to driving sea rain and salt air.
Why Wrap in Dún Laoghaire
Thermal & facade performance
We specify breathable Baumit SilikonTop and NanoporTop self-cleaning silicone topcoats that shed moisture and resist salt crystallization, protecting coastal masonry from damp while eliminating thermal bridging.

Planning Regulations in Dún Laoghaire

Planning Authority: Dublin City Council / Fingal / Dún Laoghaire-Rathdown / South Dublin County Council

For standard suburban dwellings, EWI is exempted development. For Victorian brick facades in Dún Laoghaire Architectural Conservation Areas, consult Dún Laoghaire-Rathdown County Council.

2026 SEAI Grants in Dún Laoghaire

We process your SEAI grant paperwork directly and deduct the grant value from your invoice.

Detached
€8,000
Semi-D / End
€6,000
Mid-Terrace
€3,500
Apartment
€3,000
Eligibility: Properties in Dún Laoghaire built and occupied on or before 31 December 2010 qualify for SEAI grant support. Homes with previous cavity bead insulation now qualify for the full EWI grant under the 2026 second wall measure.
Progress

Step 1 of 3

1. Property Profile

Select your building details to start your out-of-pocket calculation.

*Note: Properties must be built and occupied before 2011 to qualify for the SEAI grant.

Contractor Standards

NSAI-Certified Baumit Systems Installed in Dún Laoghaire

Every wrap in Dún Laoghaire includes bespoke powder-coated aluminium window sills fabricated by our sister workshop, Cills.ie.

Baumit external wall insulation system with custom Cills.ie aluminium sills on a completed house wrap in Dún Laoghaire

Baumit EPS System · Dún Laoghaire

NSAI-certified graphite EPS boards mechanically anchored and bonded, finished with weather-resistant SilikonTop silicone render and custom Cills.ie aluminium sills.

Baumit openSystem breathable external wall insulation on an external wall insulation project in Dún Laoghaire

Baumit openSystem & Sto (on request)

Vapour-permeable breathable systems for solid masonry walls, with unclipped gas meter box brackets and sleeved wall ventilation. Sto systems also installed on request.

Frequently Asked Questions (Dún Laoghaire)

How much does external wall insulation cost in Dún Laoghaire?+

A standard 3-bed semi-detached house in Dún Laoghaire costs €13,000 to €19,000 gross (net €7,000 to €13,000 after €6,000 SEAI grant). Detached homes receive €8,000, mid-terrace homes €3,500, and apartments €3,000.

Why is silicone render necessary for coastal Dún Laoghaire homes?+

Baumit silicone renders are water-repellent and vapour-permeable, shedding rain and preventing salt and algae damage on exposed coastal facades.

How long does a Dún Laoghaire house wrap take?+

A typical house wrap takes 2 to 3 weeks on site from scaffolding setup to final silicone render application.

Book your on-site wall survey in Dún Laoghaire

We survey your property, specify the certified Baumit system, calculate your SEAI grant, and carry out the installation with our direct crews.

Call 01 223 8774Request Survey Online