A One Stop Shop upgrade
A One Stop Shop can assess and manage a whole-home energy upgrade. It checks which works and grant route suit your home.
HomeGrants does not arrange quotes for this route yet. Use the guide and official link below.
National Home Energy Upgrade Scheme
One Stop Shop grants: whole-home upgrades (2026)
A One Stop Shop plans and manages a full home energy upgrade, claims your SEAI grants and takes them off the price up front. Here is what you get, what it pays and who it suits.
Quick answer: A One Stop Shop is an SEAI-registered company that manages a whole-home energy upgrade for you, from assessment to final BER, and deducts the SEAI grants from your bill up front. For the standard One Stop Shop route, the home must have been built and occupied before 2011 and reach at least a B BER after the work, with either a heat pump or a large energy improvement. The Traditional Homes Pilot does not require a final B BER; see the traditional-home checks. You also get grants not available individually, such as floor insulation, ventilation and project management.
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At a glance
| What you get | Home energy assessment, grant application, contractors, project management, final BER and finance options |
|---|---|
| Grants | Deducted from the price up front and paid to the One Stop Shop |
| Home must be | Built and occupied before 2011 |
| Target | Standard route: at least a B BER after the works, plus a heat pump or a primary energy improvement of 100 kWh/m²/yr. Traditional Homes Pilot conditions |
| Who can apply | Homeowners, first-time buyers, private landlords and approved housing bodies |
| Extra grants | Floor insulation €3,500, rafter insulation up to €3,000, mechanical ventilation €1,500, airtightness €1,000, energy assessment €350, project management up to €2,000 |
| Finance | Government-backed Home Energy Upgrade Loans of €5,000 to €75,000, until 31 December 2026 |
One Stop Shop grant amounts
| Measure | Detached | Semi-d or end of terrace | Mid-terrace | Apartment |
|---|---|---|---|---|
| Heat pump system (up to) | €10,500 | €10,500 | €10,500 | €8,500 |
| Central heating for a heat pump | €2,000 | €2,000 | €2,000 | €1,000 |
| Boiler scrappage (where eligible) | €2,000 | €2,000 | €2,000 | €2,000 |
| Air-to-air heat pump | €7,500 | €7,500 | €7,500 | €7,500 |
| Attic insulation | €2,000 (€2,500 first-time buyers) | €1,500 (€1,900) | €1,400 (€1,800) | €1,100 (€1,400) |
| Rafter insulation | €3,000 | €3,000 | €2,000 | €1,500 |
| Cavity wall insulation | €1,800 | €1,300 | €850 | €700 |
| Internal wall insulation | €4,500 | €3,500 | €2,000 | €1,500 |
| External wall insulation | €8,000 | €6,000 | €3,500 | €3,000 |
| Windows (complete upgrade) | €4,000 | €3,000 | €1,800 | €1,500 |
| External doors (up to 2) | €800 each | €800 each | €800 each | €800 each |
| Floor insulation | €3,500 | €3,500 | €3,500 | €3,500 |
| Heating controls | €700 | €700 | €700 | €700 |
| Solar water heating | €1,200 | €1,200 | €1,200 | €1,200 |
| Solar PV | Up to €1,800 | Up to €1,800 | Up to €1,800 | Up to €1,800 |
| Mechanical ventilation | €1,500 | €1,500 | €1,500 | €1,500 |
| Airtightness | €1,000 | €1,000 | €1,000 | €1,000 |
| Home energy assessment | €350 | €350 | €350 | €350 |
| Project management | €2,000 | €1,600 | €1,200 | €800 |
Source: SEAI One Stop Shop grant values. Heat-pump, central-heating and scrappage rows checked ; the remaining rows retain their review. Approved housing bodies get different amounts.
- Central heating: support is for required upgrades to the heat distribution system, such as radiators.
- Boiler scrappage: with a heat-pump installation, applies when an oil or gas boiler, electric storage heating or a solid-fuel system is removed, or when the home had no central heating.
- Replacing an existing heat pump: the old system must never have received funding under an SEAI domestic grant scheme. The replacement maximum is €6,500 for a house or €4,500 for an apartment, without central-heating or scrappage support.
Ask your One Stop Shop to confirm which measures and amounts apply together in your Grant Offer before work starts. The air-to-air row is a separate measure; the table is not a combined award.
What a One Stop Shop does
- Home energy assessment: a report on suitable upgrades and their cost; the standard route targets B BER or better. SEAI pays €350 towards it.
- Grant application: the One Stop Shop applies for and accepts all the SEAI grants for your project and deducts them from your bill.
- Project management: it assigns the contractors, manages the works and checks the quality.
- Final BER: a registered BER assessor completes and publishes your post-works BER.
- Finance: it can help you apply for a government-backed Home Energy Upgrade Loan (€5,000 to €75,000 over up to 10 years). The loan is only for work done through a One Stop Shop or Community Project Co-ordinator.
Compare individual upgrades in our 3D explorer before weighing them against a One Stop Shop quote.
Check my grantsWho is a One Stop Shop for?
The standard route suits homeowners ready for a substantial upgrade: in most homes, reaching a B BER takes several measures, such as insulation, windows and a heat pump. The home must have been built and occupied before 2011.
- Eligible: homeowners, first-time buyers (who get the higher attic grant), private landlords and approved housing bodies.
- Traditional homes: traditionally constructed homes may qualify for the Traditional Homes Pilot, with a Traditional Building Professional and a One Stop Shop offering this service. Build date alone does not decide the route. Traditional Homes Pilot conditions.
- Not eligible: measures your home already had an SEAI grant for, or energy credits from your supplier under the Energy Efficiency Obligation Scheme. Check with the One Stop Shop.
If a whole-home upgrade is more than you need, the individual grants let you upgrade one step at a time with your own contractors.
How the One Stop Shop route works
Find a registered One Stop Shop
Check the scheme suits you, then contact a few One Stop Shops from SEAI’s list and compare quotes. For the traditional-home pilot, engage the Traditional Building Professional first: see the traditional-home checks.
Home energy assessment
The One Stop Shop assesses the home and recommends the upgrades and cost. SEAI pays €350 towards it.
Agree the plan and price
Your quote shows the cost with the grants already taken off.
The works are done
The One Stop Shop manages the contractors and the quality checks.
Final BER
A registered assessor publishes your post-works BER. The standard One Stop Shop route must reach at least B. The Traditional Homes Pilot does not require a final B BER; see the traditional-home checks.
Your home in 3D
Explore the upgrades before you decide.
Select an upgrade on our 3D home to compare grant options, conditions and typical costs. When you are ready, choose the work you want and request a quote from one registered contractor who covers your county. The figures are guidance; your contractor checks the work and SEAI decides grant eligibility.
Frequently asked questions
What is a One Stop Shop?
An SEAI-registered company that manages a whole-home energy upgrade for you: the assessment, grant application, contractors, project management and final BER. It deducts the grants from your bill up front.
What BER do I need to reach?
For the standard One Stop Shop route, at least a B after the work, and either a heat pump or a primary energy improvement of at least 100 kWh/m²/yr. Before the BER scale changed in May 2026 this target was B2. The Traditional Homes Pilot does not require a final B BER; see the traditional-home checks.
Do I get more grants with a One Stop Shop?
Yes. Only One Stop Shops can claim grants for floor insulation, mechanical ventilation, airtightness, the home energy assessment and project management.
Do I have to pay the full cost up front?
No. The One Stop Shop takes the grants off the price, so you pay the balance. You can also apply for a Home Energy Upgrade Loan.
Is a One Stop Shop more expensive?
The total job is bigger, but the grants are deducted up front and extra grants are available. Compare quotes from a few One Stop Shops, and compare with doing the work step by step.
Can HomeGrants help?
Yes. Our 3D home explorer shows the main individual upgrades, grant conditions and typical costs, so you can compare that route with a One Stop Shop quote. For a whole-home package, follow the One Stop Shop guidance and choose a provider from SEAI’s register.
Related guides
Sources and review
The full source review for this guide is dated . Traditional Homes Pilot eligibility, its BER exception and the application sequence were checked again on . One Stop Shop heat-pump values, central-heating and scrappage conditions, replacement limits and the Grant Offer requirements were checked on . Other grant values and scheme rules retain their earlier review date.
- SEAI: One Stop Shop grant values and eligibility
- SEAI: National Home Energy Upgrade Scheme terms and conditions, version 3.1
- SEAI: One Stop Shop services for homes
- SEAI: Upgrade traditional homes and heritage buildings
- SEAI: Traditional Homes Pilot Homeowners Guide, version 3.0
- SEAI: Home Energy Upgrade Loan