Business Details
50+ Years
experience
Fire Protection & Roofing Specialists Since 1975
Established in 1975, Double L has built a reputation as a trusted provider of fire protection, roofing, and joinery services across the South East of England and London. Our expertise spans passive fire protection systems, including fire-resistant walls, floors, and door sets, alongside comprehensive roofing solutions for flat, pitched, and lead applications. Accredited by the National Federation of Roofing Contractors and the Competent Roofer Scheme, we combine decades of technical knowledge with a commitment to safety and quality. Our team, including dedicated professionals like Nikki Geaney (Office Manager), Karen Pogson (Health and Safety Manager), and Charntelle Horsman (Passive Fire Protection Lead, Manager), ensures every project meets exacting standards. As a preferred supplier to local authorities, housing associations, and commercial clients, we deliver tailored solutions for schools, hospitals, universities, and commercial premises.Our family-run ethos maintains the roofing expertise that founded the business while embracing diversification into joinery and fire protection. With workshops in Rayleigh, Essex, and operations throughout London and the South East, we provide responsive service supported by industry-recognised accreditations. Client satisfaction is guaranteed through transparent communication, adherence to health and safety protocols, and a focus on durable, compliant installations. Our case studies, including projects at Meadgate School and Royal Free Hospital, demonstrate our capability to handle complex, high-specification requirements. This combination of experience, accreditation, and local market understanding positions Double L as a reliable partner for construction professionals seeking specialist fire protection and roofing expertise.
Services
Fire Protection
Roofing
Joinery
Compartmentation
Fire Screens
Details
- Year established: 1975
Highlights and features
- 48 years of specialist experience in roofing and fire protection
- Accredited by leading industry bodies including NFRC
- Experienced team with dedicated fire protection management
- Proven track record with public sector clients including NHS and local authorities
- Family-run business maintaining personal service standards
Associations and certifications
- National Federation of Roofing Contractors
- Competent Roofer Scheme
- Accredited Supplier for Passive Fire Protection
What people say
Proven track record
Accredited specialists
Experienced team
Public sector clients
Technical expertise
Services
Fire Protection
Passive fire protection systems including fire-resistant walls, floors, and door sets. Our solutions slow fire spread through compartmentation and fire screens, meeting current building regulations. Specialists in fire protection for schools, hospitals, and commercial buildings.
Roofing
Comprehensive roofing services covering flat, pitched, and lead roofing systems. We handle roof renewals, repairs, and installations including three-layer felt waterproofing and single-ply membranes. Experienced in both residential and commercial projects.
Joinery
Custom joinery solutions including windows, doors, and staircases. Our skilled craftsmen produce high-quality timber components to exact specifications, serving both new build and refurbishment projects across London and the South East.
Compartmentation
Fire compartmentation services creating fire-resistant zones within buildings. We install fire barriers and seals to prevent uncontrolled fire spread, ensuring compliance with safety standards for educational and healthcare facilities.
Fire Screens
Installation of fire screens and curtains to protect openings in fire-rated walls. Our systems integrate with building infrastructure while maintaining aesthetic requirements for commercial and public sector clients.
People
Nikki Geaney
Office Manager
Joined Double L in 2004, progressing from Administration Assistant to Office Manager. Oversees daily operations with 18 years' experience in business administration within the construction sector.
Karen Pogson
Health and Safety Manager
Appointed in 2023 with prior management experience in pharmacy operations. Ensures full compliance with health and safety regulations across all projects, bringing fresh perspective to risk management.
Charntelle Horsman
Passive Fire Protection Lead
Started with Double L in 2009, progressing through training to lead fire protection operations. Combines technical expertise with management skills developed through years of hands-on experience in fire safety systems.
Questions
What areas do you cover for fire protection services?
We operate throughout London and the South East of England, serving both urban and rural locations from our Rayleigh base.
Are your fire protection systems certified?
Yes, we are accredited by the National Federation of Roofing Contractors and operate within the Competent Roofer Scheme for fire protection work.
What types of roofing projects do you handle?
We work on flat, pitched, and lead roofing systems for both new builds and refurbishment projects across commercial and public sector buildings.
Can you provide examples of completed projects?
Our case studies include work at Meadgate School, Royal Free Hospital, and Lomond House, demonstrating our capability across different building types.
How experienced is your team in fire safety?
Our team includes dedicated fire protection specialists with decades of combined experience, including Charntelle Horsman who has led this division since 2009.
