My installation was an upgrade to an old wired house alarm system and went really well. It was arranged after a routine service visit with good communication pre update. Robbie the installer was brill... See more
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About ADT UK&I
Written by the company
Since 1874, we’ve been the leading provider of fire and security systems for homes and businesses across the UK and Ireland. 145 years on, we now provide over 400,000 residential and small to medium business customers with round the clock protection. We offer 24/7 monitored burglar alarms, the latest smart security, CCTV systems, monitored smoke & carbon monoxide detectors and the peace of mind that our experts are on hand 24/7/365. For urgent customer support simply call 0344 800 1999.
MyADT
The quickest way to access support and help.

Contact info
Security House, The Summit, TW16 5DB, Sunbury on Thames, United Kingdom
- 0344 800 1999 / MyADT app or web portal
- www.adt.co.uk
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Really efficient and helpful
Really efficient and helpful. Told me about features of the alarm I didn’t know about and how to use them. Great customer service

Reply from ADT UK&I
Helpful, supportive and very informative throughout
We were kept in touch throughout the process, advised what will be done, kept interruption to the minimum, answered all queries, were helpful and supportive. Made sure all was running and setup before leaving.

Reply from ADT UK&I
Rubbish new alarm systems (stay away)
I had a ADT Alarm system installed many years ago (hardwired) was a great system, did the job perfect, very loud very loud and had a CO2 system as part of the deal. That alarm system recently developed a fault and I stupidly instead of getting repaired maybe chose a new ADT system these new WIFI enabled systems WHAT A LOAD OF RUBBISH, please keep away maybe perfect for business premises but not the home. The system is not loud at all there is no chance a intruder would be deterred by the sound of this alarm system, I know ADT will reply and state they are a monitoring alarm service company but what will that do for me if my alarm system goes off at night while me and my family sleep how will we prepare ourselves in that event as we would not hear the alarm go off and I may not hear phone notiications.
Very poor alarm system please look for alternatives Verisure being one who offered me a internal siren as part of the package and ADT wanting to charge me over £250 for a internal siren, even though being a customer for over 26 years!!!!
Now ADT will not allow me to cancel my contact even though its been around 6 days since I had the alarm installed but complained on the day of the installation, very rude, arrogant customer services and complaints team..
Shop around guys ADT is not always the best !!!!

Reply from ADT UK&I
ADT Failure to have technical support from 7pm to 7am for residential alarm systems…
Failure to have technical support for domestic customers from 7pm -7am has been the company position currently and for at least most of this year . Having been a customer for more than 14 years , i have seen unacceptable changes in standards of service since mergers with other companies over the years. Including over many months no technical qualified support in the evenings. Sadly i had to monitor my own system, when alarm went off in the early hours and calling to find out why I and key holders had not been called. To learn the system had not been receiving appropriate signals ( due to engineer visits) to upgrade system and alleged failed to reset and set up correctly after upgrade. This was to say a very worrying experience and to have to do the investigations ADT should be doing. The customer should not be monitoring and being expected to scrutinise standards that fall below what the customer is paying for in their contract, is unsafe and unacceptable.
I would urge other customers to seek their records from ADT of signals and system setting. Insurers in the event of an incident will no doubt be checking your policy and declarations and system record of alarms to central station. I have had to raise an issue with NSI due to lack of adequate responses from ADT. Engineers are always pleasant when they attend but where the failure truly arise and the cause and clarity are factually severely lacking.

Reply from ADT UK&I
It didn't take long for the appointment…
It didn't take long for the appointment and he turned up on time and was very approachable.

Reply from ADT UK&I
ADT engineers were very thorough in…
ADT engineers were very thorough in whatever they were doing and were very helpful and explained in detail how the new system works.

Reply from ADT UK&I
Alarm had minor fault
Alarm had minor fault. Hastin came quickly and did an amazing job!

Reply from ADT UK&I
The person I spoke to was able to help…
The person I spoke to was able to help me with my problem of resetting my cameras after my Internet changed

Reply from ADT UK&I
5* to Jack who came to upgrade our home…
5* to Jack who came to upgrade our home alarm system. He explained everything he was going to do. Asked if there was anything we were unsure about. When he had finished, he showed us and explained how to use the new system. Very happy customers.

Reply from ADT UK&I
The entire team I spoke with were very…
The entire team I spoke with were very professional and helpful, always happy to help and knowledgeable. The problem was resolved after the team call every day until the time was right to update and resolve once and for all. The problem is now resolved, thanks to the team, not one but a few persons who called daily to check on things. A very big five start and hundred percent satisfaction. Thank you

Reply from ADT UK&I
I ordered a system and paid a £250…
I ordered a system and paid a £250 deposit, the system wasn't right for us so we cancelled on the 19th june and told it will take 10 working days for a credit, this never happened so I phoned again and was told it has been cancelled and will receive my refund. Another wk later I phoned again and was told its definitely been cancelled on the 6th July and ill get a refund in 10 working days, im now on day 12 and still no refund I think I need to contact the ombudsman this is just a shocking service I have to give at least one star on here or it would have been a zero

Reply from ADT UK&I
Lovely polite quick engineer
Lovely polite quick engineer he was a great guy provided a great service

Reply from ADT UK&I
The two engineers were extremely…
The two engineers were extremely professional, informative, helpful and polite

Reply from ADT UK&I
Engineer did a fabulous job.
Engineer did a fabulous job.
I would definitely recommend him.
Alarm is working fine is a big upgrade on my previous one.

Reply from ADT UK&I
Hastin Harris - very professional and polite
Hastin Harris was very professional and polite.

Reply from ADT UK&I
Member of staff on time.yes
Member of staff on time.
Very efficient, helpful and very pleasant. Completed the entire job in a good time.

Reply from ADT UK&I
10/10 thank you ADT!
I cannot over emphasise the care and attention to the installation of my updated ADT alarm system today. The engineer was patient despite some issues and explained exactly what the delay was caused by. He ensured that I was happy with the new system and confident to use it. Thank you!

Reply from ADT UK&I
Matthew Woodall did his best as usual
Matthew Woodall did his best as usual. Very efficient.

Reply from ADT UK&I
Glen Clarke from ADT Alarms was…
Glen Clarke from ADT Alarms was fantastic from start to finish. He was polite, professional, and genuinely friendly throughout the whole visit. He took the time to explain everything in detail, walking us through how the system worked and answering all our questions patiently. His knowledge and clear communication gave us real confidence in the installation, and made us feel great about choosing ADT as our intruder alarm provider. Highly recommend Glen and the team — couldn't have asked for a better experience.

Reply from ADT UK&I
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