A roughcast bungalow on the Moray Firth with unfilled cavity walls and a cold suspended floor. Both done in one visit: beads into the walls, Earthwool under the boards.
A detached bungalow in Nairn: roughcast render over cavity block walls, a suspended timber floor with air bricks at low level, and a cold house despite decent windows. Classic Highland post-war construction, and one of the most common jobs we do north of Inverness.
The borescope survey confirmed a clear, unfilled cavity with sound pointing and no damp, so it was a straightforward fill. The floor was the other half of the problem: nothing between the joists and a well-ventilated void underneath, which is exactly what you want for the timbers and exactly what makes the floor freezing.
Small holes drilled through the roughcast on a set grid, tighter around openings and at the eaves so no corner is missed.
Bonded expanded polystyrene beads blown in under pressure from the bottom up, with the operator working the hose up the ladder until each section is full.
Holes filled and sealed to blend with the wall. On the granite section at the front the fill is barely visible.
Sealed holes on the granite front elevation. This is what a finished cavity job should look like: nothing.
Floorboards lifted in runs, Knauf Earthwool fitted snugly between the joists, breathable netting to hold it, boards relaid and screwed back down. No boards damaged, no gaps, and the room back in use the same day.
That's the bit a joiner-led firm does differently. Lifting and relaying a floor without splitting boards or leaving squeaks is a trade skill, and it's the part customers notice when we've gone.
Cavity walls stop heat going sideways; the floor stops it going down. Doing both in one visit costs less than two visits and the difference in the house is immediate. In Nairn, a 40-minute drive from Inverness, one trip matters.
Nairn, Inverness, the Black Isle, Moray and up to Caithness: we price Highland work with travel included and group jobs so nobody pays for the drive twice. Highland addresses qualify for the rural uplift on Scottish Government funding. Cavity wall insulation in the Highlands · Underfloor insulation in the Highlands
Roughcast, post-war, cold floor, cavity never filled: it's the most common house in Scotland and one of the cheapest to fix. Free borescope survey, written quote, and we'll tell you if the walls aren't suitable. Call 0800 069 9339.
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