Filling suspended floor for UFH

chalky_ie · 14-02-2025 11:32PM #1

Does anyone have a rough idea of the cost to fill in a suspended timber floor with concrete and do UFH, for roughly 100m2 floor area? Around 25m2 of said area is already (very old) uninsulated solid floor with tiles, so not sure what would be needed there, but the suspended area is just earth below. I don't know the depth of the void or any specifics, just trying to understand a ball park figure. Any info would be great, thanks!

Markcheese · 15-02-2025 12:08AM

How deep is space beneath the current floor boards , ( assume you're keeping the finished floor level ) ,

You're taking out the 25m² of uninsulated concrete floor you'd be a bit mad not too ,

chalky_ie · 15-02-2025 12:40AM

https://www.boards.ie/discussion/comment/123172946#Comment_123172946

I don't know the depth unfortunately, as it's currently insulated. I'd say we would take the old solid floor out yeah, I guess it would be required.

Alkers · 15-02-2025 01:10AM

There was a recent post on here with someone planning a retrofit and their builder costed them in the region of 20k for similar

chalky_ie · 15-02-2025 11:22PM

https://www.boards.ie/discussion/comment/123173056#Comment_123173056

Thank you, that's not too bad! Well, it is but I'm used to it being far worse than I can imagine usually.

Filling suspended floor for UFH

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