Start by checking the SEAI eligibility rules, including the qualifying social welfare payment and requirements for your home. Submit an application to SEAI with the requested details, after which SEAI may review your circumstances and arrange a home assessment. If approved, an SEAI-appointed contractor will recommend and carry out suitable energy upgrades, such as insulation or heating improvements. The exact works and timing depend on the assessment and available resources, so check the latest guidance on the official SEAI website before applying.