Closed-cell spray foam extraction
Unapproved polyurethane roof foam traps moisture against structural rafters, triggering surveyor flags and mortgage refusals. Our technicians meticulously chisel and clear foam back to bare timber, treating all joists with biocidal preservatives before issuing photographic survey clearance.
Rodent-fouled insulation renewal
Persistent rodent activity compromises attic thermal efficiency and introduces airborne pathogens. We execute complete containment vacuum extraction of fouled material, mist the entire roof void with broad-spectrum antimicrobials, and install compliant 300mm mineral wool blankets.
Architectural proofing and barriers
Heavy infestations demand permanent physical exclusion rather than superficial treatments. We install bespoke stainless steel solar mesh, ridge tile barriers, chimney cowls, and non-intrusive bird wire systems engineered to preserve structural brickwork without altering street-facing elevations.
Rigorous technical governance
100%
RICS survey sign-off rate
0.3µm
HEPA extraction filtration
25 yr
structural timber guarantee
Grade 1
licensed waste transfer
Arrange a certified loft diagnostic survey
Receive an on-site structural timber assessment, moisture readings, and a detailed remedial specification accepted by high-street lenders and local building control officers.