Case Studies / Horsforth, Leeds
Spray Foam Removal & 300mm Re-Insulation — Horsforth, Leeds (55m²)
Open-cell spray foam flagged by a surveyor was fully removed, ventilation restored, and the loft re-insulated to 300mm so the sale could proceed.
Completed February 2026 • Semi-detached house
Measured Area
55m²
Duration
2 days
Location
Horsforth, Leeds
The Problem
The homeowner was preparing the property for sale when a surveyor flagged open-cell spray foam insulation applied to the underside of the roof. The lender raised concerns about the inability to inspect the roof timbers and covering, and the sale was at risk of falling through.
Assessment & Specification
Based on information provided and photographs, the spray foam was identified as having been applied directly to the roofing felt without preserving ventilation pathways. On the day of installation, early evidence of moisture retention at the eaves was confirmed. The most appropriate course of action was full removal of the spray foam, reinstatement of ventilation, and installation of conventional joist-level insulation.
Scope of Work
Complete removal of open-cell spray foam from the roof slope. Installation of lap vents to restore airflow. Full 300mm mineral wool installation at joist level. Draught-proofed and insulated loft hatch. All waste removed from site.
Outcome
The loft was returned to a fully inspectable, conventionally insulated condition. The subsequent survey raised no further concerns and the sale proceeded.
How the Loft Was Assessed
The roof footprint was measured remotely from satellite imagery and cross-checked against photographs of the loft interior, which is how around 90% of our projects are quoted. The fixed price was issued in writing before the work was booked, so the figure agreed at the start was the figure paid at the end.
Ventilation, condensation risk and any pipe or tank insulation were assessed on the day of installation and dealt with then. Because those items are included as standard, no additional charge arose once work was underway.
Included at No Extra Cost
- Loft hatch insulation
- Lap vents at the eaves where ventilation needed protecting
- Pipe and cold water tank insulation
- Removal and disposal of all waste materials
- A completion certificate confirming the work carried out, the materials used and the insulation depths installed
Work Carried Out
- Spray foam removal
- 300mm mineral wool installation
- Lap vents
- Loft hatch insulation
How This Project Was Priced
Every element of this project was priced using our published square-metre rates, with the full cost confirmed in writing before any work began. Standard inclusions — hatch insulation, lap vents where needed, pipe and tank insulation, waste removal and a completion certificate — were provided at no extra cost.
Other Case Studies
Standard of Work
Representative images of the standard of work we deliver on every loft — measured, specified and finished properly.
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