Passive & High Performance Windows for Irish Homes

Passive and high performance windows represent the pinnacle of window technology, engineered to meet the exacting standards required by Passive House (Passivhaus) certification and Irish A-rated building specifications. At Northern Storm, we supply and install triple-glazed, highly insulated window systems that dramatically reduce heat loss, eliminate cold bridging, and create a supremely comfortable indoor environment regardless of the weather outside.

What sets passive standard windows apart from conventional double glazing is the combination of three distinct performance factors. First, the triple-glazed unit itself uses two low-emissivity coatings and two argon or krypton gas-filled cavities to achieve a whole-window U-value of 0.8 W/m²K or better. Second, the window frame uses thermally broken or fully insulated profiles that prevent heat from bypassing the glazing unit through the frame edge. Third, the installation methodology ensures an airtight seal around the entire window perimeter, eliminating draughts completely.

For homeowners undertaking deep energy retrofits or building new homes to NZEB (Nearly Zero Energy Building) standards under Irish building regulations, passive windows are often the critical component that enables the required overall heat loss coefficient to be achieved. Our technical team can work directly with your architect or engineer to select the correct window specification for your specific project.

The acoustic performance of our passive windows is also exceptional. The triple glazing, combined with the wide overall frame depth, provides significantly greater sound attenuation than standard double-glazed products, making these windows ideal for urban homes, properties near airports or motorways, or simply for homeowners who value a quieter, more peaceful living environment.

SEAI Grants and Energy Upgrade Support

SEAI (the Sustainable Energy Authority of Ireland) provides substantial grants for homeowners upgrading to high-performance glazing as part of an energy retrofit project. Northern Storm is an approved SEAI contractor, meaning we can manage the entire grant application process on your behalf, from initial energy assessment through to post-installation sign-off and grant payment.

Investing in passive or high performance windows is one of the most impactful energy efficiency measures available to Irish homeowners. With grant support, significantly reduced heating bills, and a potential uplift in your home’s BER rating, the long-term financial case is compelling. Contact Northern Storm today for a detailed specification and quotation tailored to your project.