Your walls are leaking heat. We wrap them.

A standard 3-bedroom semi-detached house in Dublin or Kildare typically costs between €13,000 and €19,000 before grants, depending on wall square meterage, insulation thickness (100mm to 150mm Baumit EPS or mineral wool), window reveal details, and pipework. With the €6,000 SEAI grant deducted directly from your invoice by Isotherm, the net out-of-pocket investment is typically between €7,000 and €13,000. Mid-terrace homes range from €10,500 to €14,000 before the €3,500 SEAI grant deduction (net €7,000 to €10,500), while detached houses range from €18,000 to €26,000 before the €8,000 grant. Apartments range from €7,000 to €11,000 before the €3,000 grant. We provide fixed-price quotations following an on-site physical survey.

In 2026, the SEAI Better Energy Homes grant provides €8,000 for detached houses, €6,000 for semi-detached and end-of-terrace homes, €3,500 for mid-terrace houses, and €3,000 for apartments. To qualify, your property must have been built and occupied on or before 31 December 2010. From 2 March 2026, under the second wall measure, homes that previously received a cavity or internal wall insulation grant can also claim the EWI grant. As an SEAI registered contractor, Isotherm processes your grant application and deducts the grant amount directly from your final invoice.

We primarily install NSAI-certified Baumit external wall insulation systems (such as Baumit openSystem and Baumit EPS with breathable SilikonTop or NanoporTop silicone render). Baumit systems are specifically formulated for Ireland's wet maritime climate, offering exceptional vapour permeability, crack resistance, self-cleaning silicone surfaces, and high algae resistance. We also install Sto systems upon specific architectural request.

Yes, this is an essential part of a professional house wrap. When adding 100mm to 150mm of external insulation, existing concrete window sills lose their projection. Our sister workshop, Cills.ie (located in the same Inchicore yard), custom-fabricates bespoke powder-coated aluminium window sills with welded end-caps that sit over the new insulation. For services, we unclip your external gas meter box and ESB meter brackets, install certified standoff extension brackets, and remount them securely onto the finished render. We never bury meter boxes behind insulation.

A standard 3-bedroom semi-detached house wrap takes approximately 2 to 3 weeks on site from scaffolding erection to final Baumit render application. The timeline depends on weather conditions, as breathable basecoats and silicone topcoats require dry days above 5°C to cure properly. We plan our work around verified weather windows to ensure structural mesh embedment and render finishes bond permanently.

No, you do not need to move out. 100% of external wall insulation and rendering work is carried out from the outside of your property using scaffolding. There is zero dust, mess, or disruption inside your living areas, and you lose zero internal floor space. Your heating, electricity, and plumbing remain fully operational throughout the entire installation process.

ICF stands for Insulated Concrete Forms. It is a modern method of construction where lightweight, interlocking expanded polystyrene (EPS) hollow forms are dry-stacked on site and filled with reinforced ready-mix concrete. We build structural ICF shells across Dublin and Leinster to your engineer's drawings, including Amvic, Nudura, Logix, Quad-Lock, Fox Blocks, and Castleforms.

We operate dedicated in-house installation crews covering County Dublin (Inchicore base, Lucan, Crumlin, Tallaght, Dundrum, Swords, Dún Laoghaire), County Kildare (Naas, Newbridge, Celbridge, Maynooth, Leixlip, Straffan, Kilcock), County Meath (Dunboyne, Ashbourne, Ratoath, Trim, Navan), County Wicklow (Bray, Greystones, Delgany, Arklow), and County Louth (Drogheda, Dundalk). We do not sub-contract to third parties, allowing our site supervisors to physically inspect and manage every active job.