Firestopping experts
since 2014.

Trusted by contractors, building owners and compliance professionals who need passive fire protection done right, on time, every time.

We make firestopping simple with:

  • Transparent pricing
  • Coordinated delivery
  • Audit-ready documentation

Get a free quote:

Get a free quotation

Fully accredited, 5* rated fire protection covering London and the UK

Middlesex Firestopping: proud to be part of the £70m+ group of Middlesex companies.

Penetrations, Cavity Barriers & Linear Gap Seals
01.

Penetrations, Cavity Barriers & Linear Gap Seals

Certified systems that maintain fire compartment integrity and compliance across every building type. We install tested, approved and traceable firestopping solutions around service penetrations, linear joints and structural gaps, ensuring that fire and smoke are contained as designed. Our LPCB-accredited teams deliver to the highest standards, using manufacturer-approved systems that meet current Part B and BS 476 / EN 1366 requirements.

Intumescent & Cementitious Coatings
02.

Intumescent & Cementitious Coatings

Advanced surface protection for structural steel and critical components. We apply tested and approved intumescent and cementitious coatings that protect steelwork and other load-bearing elements from fire. Our experienced teams ensure each application is performed to the manufacturer’s specification and certified for the required fire resistance period. We apply tested and approved intumescent and cementitious coatings that protect steelwork and other load-bearing elements from fire. Our experienced teams ensure each application is performed to the manufacturer’s specification and certified for the required fire resistance period.

Grit Blasting
03.

Grit Blasting

Clean, consistent surface preparation for coatings and fire protection systems. We provide professional grit blasting services to prepare steelwork and substrates for the application of fire protection coatings and finishes. Our controlled process ensures maximum adhesion, coating performance and long-term durability, whether on-site or off-site.

Fire-Resistant Boarding & Cladding
04.

Fire-Resistant Boarding & Cladding

Structural fire protection that combines safety, strength and design integrity. We install tested fire-resistant boarding and cladding systems to protect structural steel, ductwork and wall assemblies. Every solution is selected, installed and documented to meet the required fire resistance period for each project. Our work supports compliance with BS 476 Part 22 and EN 1364–1365 standards, ensuring the integrity of your fire protection strategy.

Core Drilling
05.

Core Drilling

We provide professional core drilling services for firestopping, M&E and structural works. Our trained operatives use dust-controlled methods to maintain safety and cleanliness, ensuring all penetrations are reinstated with tested fire-rated seals.

Fire Doors
06.

Fire Doors

Certified installation and maintenance that keeps your buildings safe, compliant and audit-ready. We supply, install, and maintain fully certified fire doorsets for both new build and occupied environments. Our teams deliver complete solutions including frame installation, ironmongery fitting, and documentation to support Golden Thread compliance.

  • Penetrations, Cavity Barriers & Linear Gap Seals
  • Intumescent & Cementitious Coatings
  • Grit Blasting
  • Fire-Resistant Boarding & Cladding
  • Core Drilling
  • Fire Doors

Get a free quotation

Speak to our friendly, experienced staff

Commercial
01.

Commercial

Reliable, compliant fire protection for offices, workplaces, and mixed use developments. Middlesex Firestopping supports main contractors and developers with stress free delivery, clear documentation, and proven coordination on complex builds.

Data Centres
02.

Data Centres

Precision fire protection for mission critical environments. Middlesex Firestopping delivers compliant, traceable installations that align with tight programmes and complex sequencing requirements.

Residential
03.

Residential

Compliant, audit ready fire protection for residential developments and occupied buildings. Middlesex Firestopping delivers fast mobilisation, clear documentation, and dependable quality that helps housing providers and contractors stay compliant with confidence.

Education
04.

Education

Safe, compliant learning environments delivered without disruption. Middlesex Firestopping works across schools, colleges, and universities to protect people, property, and performance, all backed by transparent documentation and trusted delivery.

Healthcare
05.

Healthcare

Compliant, controlled fire protection for hospitals, clinics, and care environments. Middlesex Firestopping delivers safe, well documented installations that meet healthcare standards without disrupting patient care or critical operations.

Aviation
06.

Aviation

Compliant, coordinated fire protection for aviation and airside environments. Middlesex Firestopping delivers safe, traceable installations that meet the highest standards of safety and security.

Leisure
07.

Leisure

Durable, discreet fire protection for hotels, gyms, and public venues. Middlesex Firestopping delivers compliant, well documented installations that maintain safety, access, and design intent in every environment.

Ministry of Justice & Defence
08.

Ministry of Justice & Defence

Secure, compliant fire protection for government and defence environments. Middlesex Firestopping delivers fully verified installations under strict security and operational control.

  • Commercial
  • Data Centres
  • Residential
  • Education
  • Healthcare
  • Aviation
  • Leisure
  • Ministry of Justice & Defence

Get a free quotation

Speak to our friendly, experienced staff

OUR TEAM

10+ years in the business

We’re a friendly, experienced team who understands the pace and pressure of principal partner delivery. If you’d like to see how we can bring clarity, quality and calm to your next project, get in touch.

Mike DeBono
Managing Director
Tom Boczko
Contracts Director