An SEAI One Stop Shop is a registered company that manages your entire home energy upgrade — assessment, grant paperwork, contractors, and final BER — with all SEAI grants deducted upfront from your bill. It's the delivery route for the National Home Energy Upgrade Scheme: your home must have been built before 2011 and reach a minimum B energy rating when the work is done. One important exception: if solar panels are the only thing you want, you cannot use a One Stop Shop — the solar grant on its own must be applied for separately, with your own SEAI-registered installer. All details on this page were verified against seai.ie and citizensinformation.ie on 3 June 2026.
What the One Stop Shop Service Actually Is
"One Stop Shop" is SEAI's name for private companies registered to deliver complete home energy upgrades under the National Home Energy Upgrade Scheme. Instead of you applying for individual grants, hiring separate contractors, and coordinating the work, the One Stop Shop does all of it:
- Home energy assessment — a detailed report on what your home needs to reach a B rating, with cost estimates (there's a €350 grant towards this)
- Grant application — they apply for and receive every SEAI grant your project qualifies for
- Project management — they assign and manage the contractors (grant of €800–€2,000 depending on house type)
- The works themselves — insulation, heat pump, windows, solar, ventilation
- Follow-up BER — a registered assessor certifies the post-works rating (see what a BER assessment costs and involves)
- Finance options — including the government-backed Home Energy Upgrade Loan Scheme at below-market interest rates
The defining feature is that grants come off the price upfront. With individual SEAI grants you pay the contractor in full and claim the grant back afterwards. With a One Stop Shop, the grant goes directly to the company and you're only invoiced for the difference. On a deep retrofit where grants can total €20,000+, that's a major cash-flow difference.
Who Qualifies
- Your home was built and occupied before 2011.
- The work must bring it to a BER of B or better, and either include a heat pump or deliver a primary energy improvement of at least 100 kWh/m² per year. (If a heat pump is installed, SEAI has removed the separate energy-uplift requirement.)
- You're a homeowner, first-time buyer, private landlord, or approved housing body.
- You haven't already claimed SEAI grants for the same measures, and haven't received energy credits for them through the Energy Efficiency Obligation Scheme.
In practice the B-rating requirement means this scheme is for homes that need multiple measures — typically insulation plus a heat pump, often windows too. A home that's already a C1 needing only one upgrade is usually better served by individual grants.
One Stop Shop Grant Values (2026)
Grant amounts depend on your house type. These are the homeowner rates for the most significant measures (verified 3 June 2026; approved housing bodies get higher rates for most measures):
| Measure | Detached | Semi-D / end terrace | Mid-terrace | Apartment |
|---|---|---|---|---|
| Heat pump (air/ground/water to water) | €6,500 | €6,500 | €6,500 | €4,500 |
| Renewable heating system bonus | €4,000 | €4,000 | €4,000 | €4,000 |
| Central heating upgrade for heat pump | €2,000 | €2,000 | €2,000 | €1,000 |
| External wall insulation | €8,000 | €6,000 | €3,500 | €3,000 |
| Internal wall insulation (dry lining) | €4,500 | €3,500 | €2,000 | €1,500 |
| Cavity wall insulation | €1,800 | €1,300 | €850 | €700 |
| Attic insulation | €2,000 | €1,500 | €1,400 | €1,100 |
| Windows (complete upgrade) | €4,000 | €3,000 | €1,800 | €1,500 |
| External doors (max 2) | €800/door | €800/door | €800/door | €800/door |
| Solar PV panels | up to €1,800 | up to €1,800 | up to €1,800 | up to €1,800 |
| Floor insulation | €3,500 | €3,500 | €3,500 | €3,500 |
| Home energy assessment | €350 | €350 | €350 | €350 |
| Project management | €2,000 | €1,600 | €1,200 | €800 |
Attic insulation figures shown are for non-first-time buyers — eligible first-time buyers (second-hand home bought on or after 1 January 2025, owner-occupied, first home) get a higher attic grant: €2,500 detached / €1,900 semi-D / €1,800 mid-terrace / €1,400 apartment. The renewable heating system bonus only applies when a heat pump replaces an oil, gas, solid fuel, or electric storage heating system. Source: seai.ie and citizensinformation.ie, both verified 3 June 2026.
The solar PV grant inside the One Stop Shop scheme is the same as the standalone grant — €700 per kWp up to 2 kWp, then €1,600 at 3 kWp and €1,800 at 4 kWp, capped at €1,800. Full tier maths in our SEAI solar grant guide.
The Solar-Only Exception — Read This Before Contacting a One Stop Shop
If solar panels are the only upgrade you want, you cannot go through a One Stop Shop. Citizens Information states it plainly: "You cannot use a One Stop Shop if you are only applying for the Solar PV grant, you must do this yourself." The solar grant application goes directly to SEAI, and the install is done by an SEAI-registered solar installer of your choosing.
That's exactly what Solar Quotes Ireland is for — we match you with SEAI-registered installers in your county who handle the grant paperwork and the NC6 grid registration as part of the job.
Get free solar quotes →If solar is part of a bigger upgrade — insulation plus heat pump plus solar — then the One Stop Shop can include the solar grant in the package. The rule only bites when solar is on its own.
One Stop Shop vs Individual Grants: Which Route Fits Your Home?
| One Stop Shop | Individual grants | |
|---|---|---|
| Best for | Deep retrofit — multiple measures, older/colder homes (D, E, F, G rated) | One or two upgrades at your own pace |
| BER requirement | Must reach B after works | No minimum post-works BER |
| Grant payment | Deducted from your bill upfront | You pay in full, claim grant back after |
| Who manages it | The One Stop Shop company | You (apply, hire contractor, arrange BER) |
| Home age rule | Built before 2011 | Before 2011 (insulation/heating controls); before 2021 (heat pump, solar) |
| Solar on its own | Not possible | Yes — via SEAI-registered installer |
The full list of individual grants and amounts is on our SEAI grants guide. If cost is the constraint, note that the Warmer Homes Scheme provides fully funded upgrades for homeowners on qualifying welfare payments — no One Stop Shop or contribution needed.
How It Works — 3 Steps
- Find a One Stop Shop and get quotes. SEAI publishes the list of registered providers at seai.ie. SEAI's own advice: "Be sure to shop around to get the best quote" — prices for the same works vary significantly between providers.
- Home energy assessment. The One Stop Shop surveys your home and produces a report showing which upgrades get you to a B rating and what they'll cost. The €350 grant offsets the assessment fee.
- The works are carried out. The One Stop Shop manages the contractors, deducts all grants from your invoice, and arranges the final BER assessment. The grant money goes directly to the company — you never have to front it.
What It Costs After Grants
SEAI publishes median costs for One Stop Shop projects (the "Median Costs and Grants" document on seai.ie). The honest answer is that a deep retrofit is a significant investment even after grants — typically tens of thousands of euro for a full D-to-B upgrade with a heat pump. Three things reduce the net cost:
- The grants themselves — on a detached house doing external insulation (€8,000), a heat pump with bonus (€12,500), windows (€4,000) and attic insulation (€2,000), the grant total exceeds €26,000 before assessment and project management grants.
- The Home Energy Upgrade Loan Scheme — government-backed loans at lower rates than personal loans, available only to people receiving an SEAI home energy upgrade grant.
- Energy savings — the running-cost difference between a D2 and an A2/B1 home is substantial, particularly when a heat pump replaces oil heating.
Older homes built before 1940 (stone walls, single-leaf brick) may need conservation advice before insulating — SEAI runs a Traditional Homes Pilot through selected One Stop Shops for exactly these properties.
Frequently Asked Questions
An SEAI One Stop Shop is a private company registered with SEAI to deliver complete home energy upgrades under the National Home Energy Upgrade Scheme. It manages the entire project — home energy assessment, grant applications, contractors, project management, and the final BER certificate — and deducts all SEAI grants from your bill upfront, so you only pay the net cost. Your home must have been built before 2011 and reach a minimum B energy rating after the works.
No. If solar PV is the only grant you're applying for, you cannot use a One Stop Shop — you apply for the €1,800 SEAI solar grant yourself and have the system installed by an SEAI-registered solar installer. The One Stop Shop route only applies when solar is part of a larger package of upgrades that brings your home to a B rating. For solar on its own, get quotes directly from registered installers.
One Stop Shop grants for a detached house in 2026 include: heat pump €6,500 plus a €4,000 renewable heating bonus, external wall insulation €8,000, windows €4,000, attic insulation €2,000, cavity wall insulation €1,800, solar PV up to €1,800, floor insulation €3,500, plus €350 for the home energy assessment and €2,000 for project management. Amounts are lower for semi-detached, terraced and apartment homes. All grants are deducted upfront from the cost of works.
Homeowners, first-time buyers, private landlords and approved housing bodies qualify, provided the property was built and occupied before 2011, the works bring it to a BER of B or better, and the project either includes a heat pump or improves primary energy performance by at least 100 kWh/m² per year. Homes that already received SEAI grants for the same measures are excluded.
Upfront. The One Stop Shop deducts the full value of all applicable grants from your invoice before you pay anything, and SEAI pays the grant money directly to the company. This is the key difference from individual SEAI grants, where you pay the contractor in full first and claim the grant back after the work is completed and inspected.
Yes. The National Home Energy Upgrade Scheme requires your home to achieve a minimum post-works BER of B. If that target isn't realistic for your budget, the individual SEAI grants route has no minimum BER requirement — you can do one upgrade at a time, though you'll pay upfront and claim each grant back afterwards.
Published: 3 June 2026. Author: Neil Russell. All grant amounts, eligibility rules and scheme mechanics verified against seai.ie (One Stop Shop pages) and citizensinformation.ie (page edited 27 May 2026) on 3 June 2026. Grant amounts change — check seai.ie before committing to works.