David (our engineer/installer) was super friendly, polite and explained every item and user instructions perfectly, offering sound advice too. He also helped set up our mobile apps and tested the whol... See more
Company replied
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
Vince was nothing short of brilliant. He was incredibly patient when talking us through the new system, clearly explained how everything worked and what each item was for, and was fantastic with our... See more
Company replied
George has been absolutely amazing, so friendly and professional, was a pleasure and didn't feel like having work done. The installation has been so quick, no noise issues and completely clean, ca... See more
Company replied
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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Company details
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.
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
Security House, The Summit, TW16 5DB, Sunbury on Thames, United Kingdom
- 0344 800 1999 / MyADT app or web portal
- www.adt.co.uk
4.6
Excellent
36K reviews
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Review
Very friendly guy with here to serve attitude. Accommodated all my requests. Tidied up all after installation.
27 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We're so pleased to hear that our team member was friendly and accommodating, and ensured everything was tidy after the installation. We appreciate your wonderful feedback!
Best Wishes
Blake
very good professional and quickly…
very good professional and quickly resolved the issue.
31 July 2025
Reply from ADT UK&I
Hello,
We appreciate your 5-star rating! We are glad our team was professional and quickly resolved the issue.
Best Wishes
Blake
From the very first phone call with…
From the very first phone call with Angela who was excellent and very thorough and informative through to the installation by Luke the service has been excellent . The technical support team has also been very helpful and efficient . Thank you
1 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We're so pleased to hear about your excellent service from the very first phone call through to the installation. It's wonderful that our team was thorough, informative, helpful, and efficient. Thank you for your positive feedback.
Best Wishes
Blake
Excellent Installation Engineer
Helpful advice from the sales team when deciding on the system
Installation an excellent process. First class engineer, friendly, patient, helpful, clear explanations, neat and tidy work, he gave us great confidence and we felt he went the extra mile to understand our wishes and meet our needs.
28 July 2026
Reply from ADT UK&I
Hello,
We're happy to hear you received helpful advice from our sales team. We appreciate that the installation was an excellent process and that our engineer provided clear explanations, making you feel confident in their work.
Best Wishes
Blake
Friendly and efficient serviceman
Friendly and efficient serviceman. Resolved the issue promptly and gave good notice of arrival.
21 July 2026
Reply from ADT UK&I
Hello,
We're delighted to hear our serviceman was friendly and efficient, resolving the issue promptly. We appreciate your positive feedback and the 5-star rating!
Best Wishes
Blake
ADT Alarm installation by Glen Clarke
Glen Clarke came on time to install my alarm, doorbell etc. He was very pleasant and friendly. He explained everything clearly, discussed where I would like certain equipment to be placed and explained where other things would be placed. He cleared up as he went along and was very respectful of my home. I would recommend ADT but I home the aftercare is just as good. Thank you Glen
28 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We're delighted to hear about your positive experience with your alarm and doorbell installation. It's wonderful that our installer was pleasant, friendly, and explained everything clearly while being respectful of your home. We appreciate your kind words.
Best Wishes
Blake
Unprofessional Installation and Poor Respect for My Home
I had my first experience with ADT today, and unfortunately it was very disappointing.
I was not informed beforehand that a trainee would be attending the installation. Although I was told the trainee would only be observing, they actually carried out part of the work. As a result, the door sensor was initially positioned incorrectly, leaving an unnecessary screw hole, and the final installation is not even properly aligned.
What concerned me even more was the lack of professionalism. Before they entered my home, I specifically asked them to cover their shoes because my house is a new build with brand-new carpets, and it was a rainy day. Despite this, they wore their outdoor shoes upstairs onto the bedroom carpets while installing cables.
Throughout the visit, they spent a lot of time chatting and laughing instead of focusing on the work. They also left my furniture out of place after moving it and only put it back after I asked. One of them even sat on my new sofa without asking permission.
These may seem like small things individually, but together they gave a very poor first impression of ADT. I expected a much higher standard of professionalism, respect for my home, and attention to detail. I hope ADT takes this feedback seriously and improves both staff training and customer service.
28 July 2026
Unprompted review
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
THE MEN WHO CAME TO UPDATE THE
THE MEN WHO CAME TO UPDATE THE
SYSTEM, WERE CHEERFUL EFFICIENT,AND PLEASANT.BUT DID NOT TELL US IF WE STILL HAD TO SHUT ALL THE INTERIOR DOORS DOWN STAIRS , BEFORE ARMING THE SYSTEM ABD LEAVING THE BUILDING-- AS WE USED TO DO WITH THE OLD ADTSYSTEM IS THIS STILL NECESASRY? PLEASE TELL ME, THANKS, J. LAMBERT.
20 July 2026
Reply from ADT UK&I
Hello,
We're glad to hear our team was cheerful and efficient! We understand your question about shutting interior doors. A member of our team will be in contact to answer your query.
Many Thanks
Blake
Reply from ADT UK&I
Hello,
We appreciate your positive feedback and 5-star rating! We're so glad our service was good and that our staff and engineer were friendly.
Best Wishes
Blake
FrADT FITTING om start to finish absolutely…
From start to finish absolutely fantastic and explained everything, would highly recommend ADT SECURITY!
The guy who came out was so helpful and explained everything bit by bit, brilliant guy.
28 July 2026
Reply from ADT UK&I
Hello,
We're so pleased to hear that your experience was fantastic from start to finish and that everything was explained clearly. It's wonderful to know our team member was helpful and brilliant.
Best Wishes
Blake
ADT engineer visit
A thorough routine inspection of the intruder alarm and the wireless smoke detectors
28 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We're glad to hear that the inspection of your alarm and detectors was thorough. We appreciate your feedback.
Best Wishes
Blake
Friendly and Helpful
Initial sales contact by Trevor was friendly and very helpful. It was a pleasure to arrange my requirements and get the right solution. Installation was prompt and engineer (Ellie) was capable, friendly and helpful. The only slight disappointment was that two visits were required as not all the required parts were stocked on her van first time. But a minor inconvenience.
9 July 2026
Reply from ADT UK&I
Hello,
We're delighted to hear about your positive experience with our sales team and the efficient installation. We appreciate your feedback regarding the two visits and will use it to improve our service.
Best Wishes
Blake
Matthew Woodhall came out and got our…
Matthew Woodhall came out and got our alarm working again. Fast and friendly service. Would recommend.
28 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We're so glad our team could get your alarm working again quickly and efficiently. We appreciate you recommending our service!
Best Wishes
Blake
HI BROKLYN I AM VERY HAPPY WITH THE…
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 EXPLAINED EVERYTHING ON HOW CAMERAS WORKED ON THE PHONE AND THE MAIN PANE BOX SO TIFFANY AND MYSELF ARE VERY SATIFIED WITH YOUR WORK THANK YOU VERY MUCH MATE
28 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We're happy to hear you're very satisfied with the installation of your alarm system and cameras. It's great that our team member did a good job, was polite, and explained everything clearly. Thank you for your positive feedback!
Best Wishes
Blake
Rather a long wait for engineer reset
Rather a long wait for engineer reset. Eight minutes in queue then another six or seven minutes while they did the job. Last time it was all done and dusted inside a few minutes. Other than that, staff very pleasant and polite.
27 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We appreciate you sharing your experience. We understand that waiting can be frustrating, and we're reviewing our processes to reduce wait times for engineer resets. We're glad our staff was pleasant.
Best Wishes
Blake
Home alarm install
Very professional, efficient, customer focused fact find and installation. I was very impressed with both parts of the service offering.
24 July 2026
Reply from ADT UK&I
Hello,
We're delighted to hear you were very impressed with both the professional and efficient fact-finding process and the installation. We appreciate your positive feedback!
Best Wishes
Blake
Renato was brilliant
Renato was brilliant, very patient and thorough. Friendly and very knowledgeable. Highly recommended
28 July 2026
Unprompted review
Reply from ADT UK&I
Hello,
We're delighted to hear our team member was brilliant, patient, and thorough. We appreciate your wonderful feedback and high recommendation!
Best Wishes
Blake
Great experience!
Amazing service for Gary(Salesman)and then incredible service for James(the installer) thank you for keeping everything so straight forward and stress free!
27 July 2026
Reply from ADT UK&I
Hello,
We're so pleased to hear about the amazing service you received from our team members. It's wonderful to know everything was straightforward and stress-free. Thank you for your positive feedback!
Best Wishes
Blake
Reply from ADT UK&I
Hello,
We appreciate your positive feedback and 5-star rating! We're so glad our team was friendly, knowledgeable, and completed the job efficiently.
Best Wishes
Blake
Very poor after sales service when you…
Very poor after sales service when you have a problem quick to take your money then when have a problem they leave you in limbo waiting a day to get an engineer out …. Would not recommend them to anyone … be careful people
27 July 2026
Unprompted review
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
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