What is the SEAI one stop shop scheme in Ireland?

The SEAI One Stop Shop scheme is a complete home energy upgrade service. Registered providers manage the entire retrofit process for homeowners, including the initial home energy assessment, contractor selection, grant administration, and final BER certification. Grants are deducted upfront from the cost.

How much does a full home retrofit cost in Ireland?

A deep home retrofit in Ireland typically costs between €25,000 and €75,000. The cost depends on the size of the house and its starting BER. For an older, uninsulated home (BER G/F), a deep retrofit to A3 standard averages €60,000, which can be reduced to €35,000 after grants.

What SEAI grants are available for a home retrofit in 2025?

In 2025/2026, the SEAI offers grants for wall insulation (up to €8,000), heat pumps (€6,500), attic insulation (up to €1,500), solar PV panels (€2,100), and mechanical ventilation (€1,500). Homeowners can access these grants individually or as a combined package through a registered One Stop Shop.

How long does a home retrofit take in Ireland?

A full deep retrofit typically takes 4 to 8 weeks to complete. The timeline depends on the scope of work (e.g. wall insulation, window replacement, underfloor heating, heat pump installation). Minor, single-measure upgrades like attic insulation can be completed in just a couple of days.

Do I need to leave my home during a retrofit?

For minor upgrades, you can stay. However, for a deep retrofit involving window replacement, floor excavation for heating, plumbing, and electrical rewiring, it is highly recommended to temporarily relocate. The process is loud, dusty, and services like heating and water will be turned off.

What is a BER rating and how does retrofit improve it?

A Building Energy Rating (BER) measures the energy performance of a home on a scale from A (most efficient) to G (least efficient). A deep retrofit upgrades insulation and heating systems to significantly reduce energy loss, typically bringing an older C, D, or F rated home up to an A3 standard.

What trades are involved in a deep retrofit?

A deep retrofit requires multiple trades, including insulation installers, heating/plumbing technicians (for heat pumps and piping), electricians (for wiring and solar panels), window installers, plasterers, and ventilation specialists. A One Stop Shop coordinates all of these professionals.

How do I find a SEAI registered retrofit contractor?

You can find certified, SEAI-registered retrofit contractors in your area using the BuildTrade.ie directory. All listed retrofit professionals are vetted for valid credentials, public liability insurance, and registered status with the Sustainable Energy Authority of Ireland (SEAI).

Retrofit Contractors in Ireland

Are you planning a home energy upgrade in Ireland? Deep retrofitting is the most comprehensive way to transform your home into a warm, comfortable, and energy-efficient living space. At BuildTrade.ie, we connect you with vetted, fully insured, and SEAI-registered retrofit contractors in Ireland who specialize in complete home retrofits. Our certified partners act as registered One Stop Shops, managing everything from initial energy assessments to final grant administration. Claim up to €25,000+ in SEAI grants to help cover costs. Whether you need attic insulation, heat pump installation, solar panels, or window upgrades, our local professionals ensure high-quality workmanship and maximum energy savings. Start your journey toward an A-rated home today. Compare free, no-obligation quotes from trusted local retrofit specialists on Ireland's leading trades directory.

Up to €25k+

SEAI Grant Value

A-Rating

Target BER Score

50%+

Energy Bill Savings

One Stop Shop

Hassle-Free Process

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What is Home Retrofit?

A home retrofit involves upgrading a building's fabric (insulation, windows, doors) and mechanical systems (heating, ventilation) to improve energy efficiency, reduce carbon emissions, and achieve a high Building Energy Rating (BER).

How Much Does Home Retrofit Cost in Ireland?

Here are typical price ranges and baseline estimates for home retrofit in Ireland.

Starting BER	Target BER	Typical Gross Cost	Est. SEAI Grant	Net Cost
F or G Rating	A3 or Better	€55,000 - €85,000	€25,000 - €35,000	€30,000 - €50,000
D or E Rating	A3 or Better	€40,000 - €60,000	€18,000 - €25,000	€22,000 - €35,000
C Rating	A3 or Better	€25,000 - €40,000	€10,000 - €15,000	€15,000 - €25,000

* Net out-of-pocket costs vary. A free Home Energy Assessment will determine the exact upgrades required for your specific property.

SEAI Home Retrofit Grants

The SEAI One Stop Shop program offers up to 50% funding for deep retrofits, making home energy upgrades highly accessible. Learn more at SEAI.ie.

Heat Pump System Upgrade€6,500

External Wall InsulationUp to €8,000

Solar PV PanelsUp to €2,100

One Stop Shop Launch Bonus€2,000

One Stop Shops manage the grant application and deduct the grant value directly from your invoice.

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Related Categories

External Wall Insulation Ireland General Builders Ireland ICF Construction Ireland Electricians Ireland

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