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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Review summary
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We have been using Alpha Fire for our fire alarm commissioning across multiple sites for the past three years, and their service has been consistently excellent. I want to give a special mention... See more
5 stars for Jack at Fire Safe in the Bromsgrove team today! Jack quickly and efficiently resolved a problem I had regarding follow up work following an alarm installation. When I called the office,... See more
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Rebecca Burton was my first point of contact via the phone and she made a great first impression of Intrasafe. Then dealing with Henry Scriven was easy and professional; he made the extra effort to vi... See more
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Company details
- Contractor
- Electrical Engineer
- Elevator Service
- Environmental Health Service
- Fire Alarm Supplier
- Fire Protection Consultant
Written by the company
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.
Your Trusted Partner for Building Compliance
Written by the company
- By your side, every step of the way.
- We’re your trusted partner, here to help you navigate the often complex and confusing regulations surrounding building compliance. We work alongside your business, and the challenges you face, to provide end-to-end cost-effective solutions to meet all your building compliance needs. We pursue the highest standards and embrace continuous improvement in everything we do, helping to cultivate lasting relationships with our customers built on reliability and respect.
Contact info
85 Great Portland Street, W1W 7LT, London, United Kingdom
- 0330 043 4344
- trustpilot@complii.com
- www.complii.com
4.9
Excellent
228 reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
How this company uses Trustpilot
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Always done well on their services with…
Always done well on their services with our water testing - clear communication and no issues
June 15, 2026
Reply from Complii
Hi Madeline,
We're so glad to hear about your positive experience with our water testing services. Thank you for your feedback!
Best wishes,
Complii
We have worked with Celtic Fire across…
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.
June 1, 2026
Unprompted review
Reply from Complii
Hi,
We are so pleased to hear about your positive experience with our team and services. We truly appreciate your kind words and recommendation, and look forward to working with you again.
We'll let James and Owen know what a great job they're doing!
Best wishes,
Complii
Reply from Complii
Hi Lucy,
We are glad you had a great experience with us. Thank you for your kind words.
Best wishes,
Complii
Sebastian Barat Fixed Wire Inspections.
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.
June 8, 2026
Unprompted review
Reply from Complii
Hi Steven,
We are delighted to hear about your positive experience with our representative. We appreciate your kind words and recommendation. Thank you for your valuable feedback!
Best wishes,
Complii
Good service and staff
June 12, 2026
Reply from Complii
Hi Marina,
We appreciate your kind words. We are so glad the job went well.
Best wishes,
Complii
Very friendly and proffesional!!!
June 12, 2026
Reply from Complii
Thank you for your review.
We're delighted to hear that you found our service friendly and professional. Providing a positive experience for our customers is something we take great pride in.
Jay Roome will be pleased to receive your feedback. His commitment to delivering professional service with a friendly approach is greatly valued, and we're glad this was reflected during your visit.
Thank you for choosing Zeta Compliance Services. We appreciate your support and look forward to assisting you again in the future.
fast and efficient
June 11, 2026
Reply from Complii
Hi Gordon,
Thank you for leaving us a review, we hope to work with you again soon!
Best wishes,
Complii
PAT Testing
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.
June 11, 2026
Reply from Complii
Hi Vivienne,
We are so pleased to hear about your positive experience with Craig. We truly appreciate your kind words and feedback!
Best wishes,
Complii
Prompt support
Prompt support, Alpha's engineer, Jason was very helpful and fixed the problem very quick.
June 11, 2026
Reply from Complii
Thank you for your feedback.
Courtney was professional
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.
June 11, 2026
Unprompted review
Reply from Complii
Hi Liz,
We are so glad to hear you had such a positive experience with us! Your kind words about our team are greatly appreciated. Thank you for your recommendation.
Best wishes,
Complii
Celtic Fire have always provided a…
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!
June 1, 2026
Unprompted review
Reply from Complii
Hi Abbie,
Thank you for your review and for your continued support of Celtic Fire & Security.
We're delighted to hear that you've consistently received great service and excellent customer support from our team. It's especially pleasing to know that Jay made such a positive impression during his recent visit.
Jay will appreciate your recognition. His friendly and professional approach, along with his commitment to keeping tenants informed and at ease while work is carried out, reflects the high standards we strive to deliver on every job.
We look forward to continuing to support your fire safety requirements in the future.
Reply from Complii
Hi Karly,
We are so glad you consistently have a great experience with us. Thank you for your kind words - we look forward to working with you again!
Best wishes,
Complii
Reply from Complii
Hi,
Thank you for leaving us a review, we're glad to hear that we did a good job!
Best wishes,
Complii
Excellent
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.
June 10, 2026
Reply from Complii
Hi,
We're so happy to hear about your positive experience! We appreciate you acknowledging our team's professionalism and high standards. Thank you for your kind words.
Best wishes,
Complii
very competant and confident checks
very competant and confident checks, all done in optimum time, no hassle at all
June 10, 2026
Reply from Complii
Hi Nicholas,
We are so pleased to hear you had such a positive and efficient experience with us. Thank you for your kind words!
Best wishes,
Complii
Mission Service Solutions
Fire Alarm altered and serviced by James Collins of Celtic Fire really nice guy nothing to much trouble I would recommend James & Celtic Everytime
June 10, 2026
Unprompted review
Reply from Complii
Hi Brian,
We are so glad to hear you had such a positive experience with our services. Your kind words mean a lot to us, we'll let James know what a great job he did!
Best wishes,
Complii
Great help !
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.
June 10, 2026
Reply from Complii
Hi Michael,
We're so glad to hear our technician was able to assist you promptly and efficiently. We appreciate you sharing your positive experience!
Best wishes,
Complii
Celtic fire
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.
June 10, 2026
Unprompted review
Reply from Complii
HI Michael, Thank you for taking the time to leave a review and for placing your trust in Celtic Fire for your fire alarm installation and servicing over many years.
James will be pleased to receive your feedback. His commitment to keeping ahead of changing regulations and to providing our clients with clear, practical guidance is something that we value. It's great to hear that it has made a positive difference for your business.
Thank you again for your continued support. We look forward to working with you for many years to come.
Reply from Complii
Hi Mel, Thank you for taking the time to provide us with feedback.
We're happy to hear that you found our staff polite and efficient. Providing a professional, reliable service and a positive experience for our customers is always our priority.
We appreciate your feedback and look forward to supporting you again in the future.
Job well done
Job well done, engineer was nice and polite, he replaced the parts which needed replacing. Very satisfied with the service
June 9, 2026
Reply from Complii
Thank you for taking the time to leave us a review.
We are pleased to hear that you were very satisfied with the service you received. It's great to know that our engineer was polite, professional, and able to quickly replace the necessary parts to get everything working as it should.
We appreciate your feedback and your trust in Logic Fire & Security.
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