# NQB Passive Fire Protection > UK subcontractor specialising in passive fire protection: fire doors and fire compartmentation for residential, commercial and public sector projects. Full supply and installation service. ## Services - Fire barriers: Stonewall, Firefly, Rockwool - Fire penetration seals: intumescent mastics, pipe wraps & collars, coated fire batt, structural compound, compression seals - Fire rated ductwork: mineral fibre site-fabricated boards, Promat composite boards, Fermasteel panels - Intumescent paint: solvent based and water based - Fire doors: installation and maintenance ## Key clients Persimmon Homes, Lambeth Council, Guinness Partnership, Harlow Council, Morgan Sindall ## How we work Survey → Specify → Install → Evidence. Tested, certificated systems installed to the manufacturer's specification and documented at handover, supporting the golden thread under the Building Safety Act 2022 and Fire Safety Act 2021. ## Track record Penetration sealing and riser compartmentation across occupied residential blocks; soffit replacement achieving Class 0 spread of flame; loft compartmentation with Firefly cavity barriers. ## Contact - Website: https://www.nqbfireprotection.co.uk/ - Email: info@nqbpassivefire.co.uk