ADT UK&I Reviews 

36,240
TrustScore 4.5 out of 5

4.6

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Evaluating 4,342 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their professionalism, helpfulness, and clear explanations during installation and service visits, ensuring a confident user experience. Many highlight the exceptional customer service and efficient approach from initial contact through to issue resolution, with installations often described as neat and thorough. However, some people mentioned issues with the product itself, such as alarm system loudness or cameras not functioning as expected. A few other people also felt after-sales support could be improved, noting long waits for engineers, limited technical support hours, or difficulties with accounts and refunds. Some customers also noted that initial property surveys might be beneficial to avoid unexpected installation limitations.

What people talk about most

Staff

Clients share positive opinions on staff, frequently highlighting their professionalism, helpfulness, and... See more

Service

Reviewers highlight positive aspects of service, with many praising the professionalism, politeness, and... See more

User experience

Customers consistently note positive experiences with user experience, highlighting thorough and polite... See more

Customer service

Customers had positive experiences with customer service, often praising the friendly, helpful, and... See more

Product

People report ambiguous experiences with product, with some customers expressing satisfaction with the... See more

Reviews shaping this summary

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

After discussing where cameras were best placed George soon had them installed. He worked without creating any mess. He explained clearly how the cameras worked and set them to my initial preferences,... See more

Rated 5 out of 5 stars

First time calling the tech support as appeared to have an issue with our pad who h kept stating low battery after a power cut. Chadra was excellent and explained everything in laymen's terms which wa... See more

Company replied

Rated 5 out of 5 stars

HI BROKLYN I AM VERY HAPPY WITH THE ISTALATION OF MY ALARM SYSTEM AND CAMERAS YOU INSTALED TODAY. YOU DID A VERY GODD JOB AND YOU WAS VERY POLITE . YOU ANSWERED ANY QUESTIONS I HAD AND YOU EXPLAIN... See more

Company replied


Company details

  1. Security Equipment Store
  2. Security Service
  3. Security System Installer
  4. Security System Supplier

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.

The quickest way to access support and help.
Using either the mobile app or web portal, MyADT is designed with you in mind and is the quickest and easiest way to securely manage your account and access help and support, without the need to call or email. MyADT is available for all UK customers and allows you to: • Update keyholders • Update account and billing details • Review and pay bills • Log faults and request technical support – such as battery changes and devices not responding. • Book and amend inspections • Log requests for additional equipment and devices To find out more or to get started please visit www.adt.co.uk/myadt or download MyADT from the app store, new and first-time users may be required to register first.

Contact info

4.6

Excellent

TrustScore 4.5 out of 5

36K reviews

5-star
4-star
3-star
2-star
1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

At Trustpilot, it's all about human content. This business can also access our AI-assisted response tool which helps them draft replies.

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.6

All reviews

(36,240)

3,961 reviews in the last 12 months

Write a review
Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

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

22 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

Hello,
We're delighted to hear about the efficient and helpful service you received! We're especially pleased that our team could inform you about features of your alarm you didn't know about.

Best Wishes
Blake

Rated 5 out of 5 stars

Professional

Professional, helpful neat tidy

14 July 2026
ADT UK&I logo

Reply from ADT UK&I

Hello,
We're happy our service was professional, helpful, neat, and tidy. Thank you for your positive feedback, we appreciate your time.

Best Wishes
Blake

Rated 4 out of 5 stars

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.

22 July 2026
ADT UK&I logo

Reply from ADT UK&I

Hello,
We're happy to hear you were kept informed throughout the process and that interruptions were minimal. We appreciate that all your queries were answered and that everything was running smoothly before we left.

Best Wishes
Blake

Rated 1 out of 5 stars

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 !!!!

17 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

Hello,
Thank you for sharing your experience with us, we are sorry to hear you were disappointed with the service. We have reached out to you for further information but have sadly had no response and can therefore offer no further assistance at this time.

Best Wishes
Blake

Rated 1 out of 5 stars

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.

20 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

Hello,
I am sorry you are dissatisfied.
I can see a member of our dedicated team are in communication with yourself regarding this matter.
Thank you for providing your feedback, I can advise that it will be used, for improving the levels of customer service that we provide in the future.


Best Wishes
Blake

Rated 5 out of 5 stars

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.

14 July 2026
ADT UK&I logo

Reply from ADT UK&I

Hello,
We're so glad to hear that your appointment was scheduled quickly and that our team member arrived on time and was approachable. We appreciate your positive feedback!

Best Wishes
Blake

Rated 5 out of 5 stars

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.

14 July 2026
ADT UK&I logo

Reply from ADT UK&I

Hello,
We're delighted to hear our engineers were thorough, helpful, and explained the new system in detail. We appreciate your positive feedback!

Best Wishes
Blake

Rated 5 out of 5 stars

Alarm had minor fault

Alarm had minor fault. Hastin came quickly and did an amazing job!

22 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

Hello,
We're so glad to hear Hastin provided amazing service and resolved the alarm issue quickly for you. We appreciate your positive feedback!

Best Wishes
Blake

Rated 5 out of 5 stars

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

21 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

We're delighted to hear that our team was able to successfully assist you with resetting your cameras after your internet change. Thank you for sharing your positive experience!

Rated 5 out of 5 stars

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.

14 July 2026
ADT UK&I logo

Reply from ADT UK&I

We're happy to hear that the alarm system upgrade was a positive experience. We appreciate your feedback regarding the clear explanations and demonstration of the new system. We're glad you're very happy customers.

Rated 5 out of 5 stars

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

16 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

We're delighted to hear that our team was professional, helpful, and knowledgeable in resolving your issue. It's wonderful to know that daily calls ensured a complete resolution. Thank you for your very positive feedback and 5-star satisfaction!

Rated 1 out of 5 stars

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

19 June 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

Hello,
Thank you for your review, I can confirm a member of our dedicated team will investigate further and contact you.

Best Wishes
Blake

Rated 5 out of 5 stars

Lovely polite quick engineer

Lovely polite quick engineer he was a great guy provided a great service

21 July 2026
ADT UK&I logo

Reply from ADT UK&I

We appreciate your wonderful feedback and 5-star rating! We're so glad our engineer was polite and quick, and provided a great service.

Rated 5 out of 5 stars

The two engineers were extremely…

The two engineers were extremely professional, informative, helpful and polite

18 July 2026
ADT UK&I logo

Reply from ADT UK&I

We appreciate your wonderful feedback and 5-star rating! We're so glad our engineers were professional, informative, helpful, and polite.

Rated 5 out of 5 stars

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.

21 July 2026
ADT UK&I logo

Reply from ADT UK&I

We're delighted to hear our engineer did a fabulous job and that you would recommend them! We're also pleased your new alarm is a big upgrade and working fine.

Rated 5 out of 5 stars

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.

21 July 2026
ADT UK&I logo

Reply from ADT UK&I

We're delighted to hear that our team member was punctual and completed the job efficiently. We appreciate your kind words about their helpfulness and pleasant demeanor.

Rated 5 out of 5 stars

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!

21 July 2026
ADT UK&I logo

Reply from ADT UK&I

Hello,
We're so pleased to hear about the care and attention given to your alarm system installation. It's wonderful that our engineer was patient, explained the delay, and ensured you were happy and confident with the new system.

Best Wishes
Blake

Rated 5 out of 5 stars

Matthew Woodall did his best as usual

Matthew Woodall did his best as usual. Very efficient.

21 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

We appreciate your positive feedback and 5-star rating! We're so glad our team member was efficient and did their best for you.

Rated 5 out of 5 stars

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.

21 July 2026
Unprompted review
ADT UK&I logo

Reply from ADT UK&I

We're delighted to hear about your fantastic experience from start to finish. It's wonderful to know that our team member was polite, professional, and friendly, taking the time to explain everything in detail and patiently answer all your questions. We appreciate your confidence in the installation and your positive feedback!

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look