Start with a clear assessment
A practical plan begins with understanding where energy is being lost and what improvements will deliver the biggest gains. Commission an energy assessment that reviews insulation levels, airtightness, heating performance, ventilation strategy, and renewable readiness. The goal is to translate test results home deep retrofit into an upgrade roadmap that fits the building’s layout, existing systems, and comfort priorities. If you’re working with an architect or managing complex works, ask for options that balance performance targets with buildability, disruption limits, and long-term maintainability.
Choose measures that work together
Deep retrofits succeed when upgrades are coordinated rather than added in isolation. Prioritise the building envelope first—roof, walls, floors, and window upgrades—while addressing air leakage so the heating system can operate efficiently. Then align ventilation and heating: improved airtightness should be supported by a suitable ventilation approach, and heat generation deep retrofit pilot programme should match new insulation and airflow conditions. Consider controls, hot water planning, and whether heat pumps, solar thermal, or other solutions are appropriate for the property’s energy profile. A coordinated scope typically reduces overheating risk, improves indoor comfort, and avoids costly rework.
Navigate grant support and delivery steps
Funding can be the difference between a partial upgrade and a full performance-led transformation. Review available supports, including the, and confirm eligibility for your property and proposed measures. Build a delivery timeline around key stages: survey and design, contractor procurement, materials lead times, installation, commissioning, and post-works verification. Ask for clear documentation—specifications, workmanship standards, and evidence of performance—so the finished outcome is measurable, not just promised. Strong project management also helps coordinate trades and reduce delays.
Conclusion
A well-run is a practical, end-to-end project: assess properly, design coordinated upgrades, and manage funding and delivery with evidence-based verification. With ERI, homeowners and design teams can access expert guidance through assessment, project management, and grant support, helping upgrades improve energy efficiency and comfort while supporting long-term savings. For anyone planning a sustainable upgrade, eri.ie offers a structured pathway from evaluation to completion, designed to strengthen property performance and reduce uncertainty throughout the process.

