Breaking-down foam removal, Winchester: a builder's referral
A local building contractor was repointing and repairing the house when they found damp patches inside. Their rod-camera survey showed the pumped cavity insulation was bridging moisture from the outer wall to the inner wall. It also showed shrinkage and breakdown commonly associated with urea-formaldehyde foam, and gaps where the original install was uneven.
- Urea-formaldehyde foam extracted
- Full rubble clearance
- Cavity refilled with new insulation
- Referred by a local building contractor
- Extract Vac specialist equipment used
The problem
Old foam insulation had broken down inside the cavity. The builder's camera showed it bridging moisture from the outer leaf to the inner leaf — the opposite of what insulation is supposed to do. Shrinkage and uneven coverage meant cold spots had developed alongside the damp patches.
What we did
The builder brought us in as the specialist. We met on site to agree the scope, extracted the old foam, cleared the rubble from the cavity, and refilled with new insulation. All of this was done as part of the builder's wider repair project.
Why it matters
Old foam insulation is one of the hardest fills to remove. It breaks into pieces and sticks to the inside of the cavity. It is exactly the kind of job the Extract Vac was designed for. It also shows other trades trusting us with work they cannot do themselves.
Found damp patches or suspect failed foam?
We carry out borescope surveys and extract foam insulation that other contractors cannot remove. Builders and surveyors can refer jobs directly.