Fire and security solutions for construction and M&E projects
London’s leading fire and security company
With over 40 years of experience, we understand the critical importance of delivering solutions that align with specifications, project timelines and industry regulations.
Whether you’re a principal contractor, M&E consultant, or facilities engineer, WLS offers end-to-end support—from design to commissioning—ensuring your site is protected and your building is delivered to spec.
Call us on 020 8676 4300
Call us on
020 8676 4300
Talk to one of our experts today or request a free, no-obligation quote
Fire Protection Systems
We work collaboratively with construction teams, consultants, and contractors to supply, design, install, commission, and maintain robust fire and security systems, including:
- Addressable and conventional fire alarm systems
- Emergency lighting installation and testing
- Aspirating smoke detection for data centres, risers, and critical zones
- Fire doors (BM TRADA-compliant options available)
- Fire extinguisher supply and scheduled maintenance
Whether as part of a CAT A or CAT B fit-out, our fire safety systems are designed to meet all relevant British Standards
Security systems
With over 40 years’ experience and NSI GOLD and Safecontractor accreditations, WLS has the experience and the qualifications necessary to assist any construction project.
- Intruder alarms and perimeter detection
- CCTV systems with remote monitoring
- Access control and video/audio intercoms
- Turnstiles, automatic doors and fire doors.
- Automated gates, barriers and bollards.
Designed for the construction and M&E sector
We understand the pressures of working to programme, budget, and regulatory frameworks. Our team is experienced in delivering on live construction sites, coordinating with multiple trades, and adapting to changing end-customer requirements. We regularly work alongside:
- Main contractors and M&E integrators
- Electrical consultants and project managers
- Building services engineers
- Fit-out specialists and D&B contractors
- Facilities management teams
Where we work
Fire prevention and security for London and the South East
We’re based in Crystal Palace, South London, but our work takes us much further. We cover all of central London, Greater London and the whole of the South East from Surrey, Sussex and Essex, to Berkshire, Hertfordshire and Hampshire. For reliable fire or security systems, call us.
Our fire & security engineers are trusted by








Call us on 020 8676 4300
Call us on
020 8676 4300
Talk to one of our experts today or request a free, no-obligation quote
Industry leading
Our accreditations
At WLS, creating safe space is what we do and our engineers are fully NSI Gold, Safe Contractor and BAFE accredited. We are proud of our industry-leading accreditations that reflect our commitment to high standards.
“WLS transformed our security infrastructure, providing us with peace of mind and unparalleled service. Their expertise in fire and security systems is truly commendable.”
Gareth Brimley
Blackmoor Knight
“WLS were extremely prompt in providing their services. They attended our premises within 24hrs of our request, sending an engineer before we even had time to pay the call out invoice. The engineer fixed our entry system within a matter of minutes and the guy I was corresponding with on the phone was v friendly - an all round great experience - Thanks!”
Joseph Pryce
Gainsbury & Whiting Productions
Work with a fire and security partner that understands construction
From pre-construction to post-handover, WLS delivers compliant, cost-effective, and dependable fire and security systems tailored to the construction and M&E sector.
- Over 40 years of experience delivering systems into construction projects
- NSI Gold, Safecontractor and BAFE approved and accredited for fire and security system design, installation, and servicing
- Trusted by leading contractors, M&E firms, and consultants across London and the South East
Your questions answered
Explore our frequently asked questions to understand our sector-specific approach better.
Need more help?
WLS has over four decades of experience maintaining and servicing warehouse and logistics facilities across the region. Our dedicated team of qualified engineers ensures that every fire and security system remains fully operational, legally compliant, and ready to perform in critical moments. We provide tailored maintenance packages and rapid-response support to minimise downtime and keep your operation running smoothly.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sed urna maximus, volutpat odio ac, mollis nisi. Duis quis ligula luctus risus euismod mollis ut ut tortor. Morbi commodo rhoncus lacinia. Suspendisse quis urna sed nulla vulputate egestas. Nulla pulvinar eget leo et ullamcorper. Morbi felis lacus, pulvinar a diam non, auctor volutpat nulla. Vivamus id ipsum nunc.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sed urna maximus, volutpat odio ac, mollis nisi. Duis quis ligula luctus risus euismod mollis ut ut tortor. Morbi commodo rhoncus lacinia. Suspendisse quis urna sed nulla vulputate egestas. Nulla pulvinar eget leo et ullamcorper. Morbi felis lacus, pulvinar a diam non, auctor volutpat nulla. Vivamus id ipsum nunc.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sed urna maximus, volutpat odio ac, mollis nisi. Duis quis ligula luctus risus euismod mollis ut ut tortor. Morbi commodo rhoncus lacinia. Suspendisse quis urna sed nulla vulputate egestas. Nulla pulvinar eget leo et ullamcorper. Morbi felis lacus, pulvinar a diam non, auctor volutpat nulla. Vivamus id ipsum nunc.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sed urna maximus, volutpat odio ac, mollis nisi. Duis quis ligula luctus risus euismod mollis ut ut tortor. Morbi commodo rhoncus lacinia. Suspendisse quis urna sed nulla vulputate egestas. Nulla pulvinar eget leo et ullamcorper. Morbi felis lacus, pulvinar a diam non, auctor volutpat nulla. Vivamus id ipsum nunc.
The WLS Guarantee
* First time fix or solution provided every time *
We strive to be the UK's leading fire and security company, with an uncompromising focus on our customers and the solutions we deliver. Our team knows how important it is to create safe spaces you can trust.
With over 40 years experience in the industry, our expert team continues to closely follow the latest developments in fire and security technology. From our first installation to where we are today, our customers have always been our focus. They trust us to consistently provide an effective and high-quality result.
We’re proud to offer the WLS Guarantee to each of our customers.
- We will arrive at your premises within the specified time slot.
- We treat our customers as we wish to be treated ourselves.
- We will act professionally at all times, arrive on time, smartly dressed in uniform.
- We will do our work quickly and without fuss.
- Once the work is completed we will ask you to review what we have done to ensure you are happy with the results.
- We will leave the site clean and tidy.
- We guarantee a first-time fix or to provide a solution on every call out.
- We fix 90% of problems first-time.
- If we cannot propose a solution we will refund the call out charge.
- We guarantee transparency in our pricing.
- We provide a full breakdown of costs with every quotation.
- We will get your approval for any additional work required to ensure you are kept up to date throughout the installation.
- Our customer support team is available 24/7 to assist you with any issues.
- You can reach us via phone or email for prompt assistance.
- We are committed to ensuring your satisfaction and security.
- We will specify the best solution to meet your needs and budget.
- We only install systems that are reliable and easy to use.
- We will install the solution to the very highest standards.
- All our systems come with a 12-month parts and labour guarantee.
- We will offer a free service 6 months after installation to ensure everything is in working order.
Resources
Fire safety and security: insights and updates
Stay informed with our latest news and resources.