External wall insulation in Naas
We are Isotherm — your direct external wall insulation contractor serving Naas, Co. Kildare. We install NSAI-certified Baumit external insulation systems with our own in-house crews, deduct up to €8,000 in SEAI grants directly from your invoice, and install bespoke aluminium window sills fabricated by our sister workshop, Cills.ie.
Upgrading solid block and commuter homes in Naas
Residential areas across Naas—including Monread, Kingsfurze, Ballycane, Sunday's Well, and Sallins Road—contain numerous concrete block semi-detached houses and detached bungalows with high heat loss. Applying a breathable Baumit house wrap encloses the structural masonry, eliminates internal condensation, and transforms household energy performance.
We are the actual installation contracting company. When you book an insulation survey with Isotherm, our own surveyors assess your home, our own trained crews carry out the installation, and we process your SEAI paperwork directly.
Adding 100mm to 150mm of external insulation requires extended window sills to prevent water penetration. Every house wrap in Naas includes bespoke powder-coated aluminium window sills custom-pressed in our Inchicore yard with welded watertight end-caps.
Grant values deducted from your Naas invoice
Frequently asked questions in Naas
How much does external wall insulation cost in Naas?+
A typical 3-bedroom semi-detached house in Naas costs between €13,000 and €19,000 before grants. With our direct SEAI grant deduction of €6,000, your net out-of-pocket cost is between €7,000 and €13,000. Detached bungalows and two-storey homes in Naas receive an €8,000 grant, while mid-terrace houses receive €3,500 and apartments receive €3,000.
Do I need planning permission for EWI in Naas?+
For the vast majority of standard suburban housing estates in Naas (e.g. Monread, Kingsfurze, Ballycane, Craddockstown), external wall insulation falls under exempted development. However, if your home is a Protected Structure or is located in an Architectural Conservation Area in historic parts of Naas, check with Kildare County Council before starting.
Why does Isotherm use Baumit silicone render in Naas?+
Naas experiences high winter humidity and cold frosts. We install NSAI-certified Baumit systems with vapour-permeable insulation and self-cleaning Baumit SilikonTop silicone render that sheds dirt and prevents moisture retention in masonry.
How long does a house wrap take on site in Naas?+
A standard semi-detached or detached home in Naas takes 2 to 3 weeks from scaffolding erection to final render topcoat application, weather permitting. All work is conducted externally.
Book your Naas wall insulation survey
Direct installation crews covering Naas, Sallins, and surrounding areas. Fixed-price quotes with SEAI grant deducted directly from your invoice.