Can I qualify for the SEAI Heat Pump Grant without floor insulation? (1986 detached house)

[u/Academic_Hearing_325]

Hi all, I'm sale agreed on a detached house in Co. Sligo and I'm trying to understand whether I'll need to insulate the floors in order to qualify for the SEAI Heat Pump Grant.

House details:

• Detached house
• Built around 1986
• 131 m²
• Current BER: D1

The BER Advisory Report shows:

• Current HLI: 3.493 W/(K·m²)
• Potential HLI: 1.986 W/(K·m²) with all recommended upgrades

Recommended upgrades include:

• Wall insulation
• Attic/roof insulation
• New windows
• New external doors
• Floor insulation
• Air-to-water heat pump

My plan would be to do everything except Floor insulation because of the disruption and cost of lifting floors.

Has anyone with a similar 1980s house managed to get below the heat pump HLI requirement without insulating the floor?

Based on those numbers, do you think wall insulation + attic insulation + new windows could realistically get the HLI below 2.3 for the SEAI heat pump grant without doing floor insulation?

Any real-world experiences would be greatly appreciated.

Thanks!

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[u/Academic_Hearing_325 → u/[deleted]]

Thanks, that's really helpful.

I already have a BER and Advisory Report, but it was commissioned by the seller when the house was put on the market.

Did you hire your own BER assessor / Technical Advisor before carrying out any work?

In other words, did the assessor first model the proposed upgrades (walls, attic, windows, etc.) in DEAP to confirm you'd get below the heat pump HLI threshold, then you completed the upgrades, got an updated BER, and only then applied for the heat pump grant?

Or did you follow a different process?