Great experience. Engineer lovely, friendly, efficient. The engineer went the extra mile, helping us with an additional task that probably was not within his remit - which we were very grateful for. H... See more
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Complii is a leading integrated provider of safety and regulatory compliance services across water and air, fire and security, electrical, and lifts and escalators. We support teams across complex, multi-site estates throughout the UK. As a trusted compliance partner, we work across many sectors, including hospitality, leisure, healthcare, education, retail and commercial property to reduce risk, assure regulatory compliance, and protect people, businesses and assets. Delivered through specialist divisions, our services provide high-quality, reliable outcomes. By consolidating multiple compliance disciplines under one trusted partner, Complii reduces supplier fragmentation, providing clear, comprehensive, cost-effective solutions all in one place. We simplify complex compliance legislation, providing you with assurance and confidence that compliance is being managed effectively. Working side by side with our clients, we deliver essential risk, regulatory, and compliance services across the built environment – helping to meet obligations, protect assets and reputations, and ensure the safety of customers and your workforce. From assessment and advice through to servicing, testing, and ongoing support, we focus on quality. We’re not just a supplier – we’re your trusted compliance partner, offering clarity, control, and peace of mind. We’re by your side, every step of the way.
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85 Great Portland Street, W1W 7LT, London, United Kingdom
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We have worked with Celtic Fire across a number of developments and have always been impressed by the service provided. James is always responsive, organised, and proactive, making compliance management straightforward and stress-free.
Owen is excellent on site, providing a professional, reliable, and knowledgeable service every time he attends.
Both are a credit to Celtic Fire, and we would highly recommend the company to anyone seeking a dependable fire safety partner.

Reply from Complii
Sebastian Barat your representative was quick, knowledgeable and very helpful during his 4 days on site doing our Fixed Wire Inspections at our company. We would have no problems recommending Complii for your inspection work.

Reply from Complii
PAT Testing
Craig was very professional, thorough, and patient throughout the process. He answered all the queries we had and ensured everything was completed to a high standard. He is a great asset to your team.

Reply from Complii
Prompt support, Alpha's engineer, Jason was very helpful and fixed the problem very quick.

Reply from Complii
Courtney was professional, friendly, and courteous throughout the visit. He took the time to clearly explain the work being carried out. I’m extremely pleased with the service and would highly recommend Courtney and the team.

Reply from Complii
Celtic Fire have always provided a great service with excellent customer support, special thank you to Jay Mawdsley who recently attended to complete some remedial work. Jay was very informative and friendly towards to the tenants to keep them at ease while he completed his work. Much appreciated!

Reply from Complii

Reply from Complii
Service was great, the gentleman who attended the job was professional and friendly, completed everything to a high standard and answered any and all questions.

Reply from Complii
very competant and confident checks, all done in optimum time, no hassle at all

Reply from Complii
Fire Alarm altered and serviced by James Collins of Celtic Fire really nice guy nothing to much trouble I would recommend James & Celtic Everytime

Reply from Complii
There was a problem with our toilet being blocked and that set off the alarm in the control panel .Fortunately your technician. Michael was working 3 doors down.He came to help us and sorted out the control panel and looked at the lights and safety alarms.All done quickly and efficiently.

Reply from Complii
We have used Celtic for all of our fire alarm installations and servicing for many years now, and they have provided excellent service throughout.
James Collins has been outstanding during this time, providing us with excellent knowledge on ever-changing regulations to keep us compliant.

Reply from Complii
Job well done, engineer was nice and polite, he replaced the parts which needed replacing. Very satisfied with the service

Reply from Complii
Efficient company who came out quickly. It turned out to just be a battery replacement but the man was very friendly and didn't make us feel silly at all! Better to be safe than sorry.

Reply from Complii
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