Alder Security
Be Safe • Be Sure • Be Alder Secure
Wireless Alarm Install with 3 Detectors, Remote Fob, External Bell & App Control from only £475 ex vat (normally £495 ex vat)...Call 01235 376003 or email [email protected] for details.
24/7 Engineer Support
Before Calling !!!
BEFORE Calling why not try our FAQ and Tech Video Pages which has many video links and user guides direct from the manufactures...please click here.
Latest News
August 2025
Currently taking bookings for September onwards - call 01235 376003 or email [email protected] for details
New Staff
We are pleased wo welcome Jack Quaterman as an Apprentice. Jack will doing a two year apprentice program with Skills for Security.
We Want To Secure You
Where To Find Us
Areas Covered
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Contact Us
Office location
116 Oxford Road, Cumnor, Oxfordshire, OX2 9PQGive us a ring
01235 376003Send us an email
[email protected]Other website
www.aldercare.co.ukTestimonials
"Brilliant service thank you Alder Security. Smoke detectors started going off randomly and Alder provided and installed new ones within days. Excellent communication throughout and just so friendly and helpful. Will use them again. Can recommend. "
"Excellent friendly and professional service from Simon, I would always recommend Alder Security to anyone."
"I was pleased with the price of the security system, and the installation was carried out promptly, professionally and carefully. I was given a full description of the system features and an explanation of the app. Full marks!"
"We run a charity of supported houses and needed work done and advice. We couldn't be happier with how helpful and open Alder security was and their flexibility, we will definitely continue to use them and recommend them!"
"Can’t speak highly enough of Simon. He kitted our house out front and back, security and smoke detectors. We have cats so he found ways to secure the house without the detectors picking up our 4-pawed friends.
We now have remote control over our house, and fully understand it thanks to Simon taking the time to explain. Awesome service."
Highly recommended. I found these guys by chance doing a quick search. The products are great and the guys installing at friendly and really willing to help you to ensure you understand how to use the systems.
They also take the time to really assess the best security needs of the property and advise you where to place cameras.
Great service!
Simon and colleagues did my cctv and alarm system. I am very pleased with the work, all completed and up and running! They were very respectful of my property throughout and left everything clean and tidy.
"Needed an Alarm Engineer to take over and subsequently maintain the installation. No problem for Alder Security. Totally competent."
Brilliant service from Alder security today, Simon and Sam were brilliant and efficient, would highly recommend to anyone!
"Really impressed with Alder Security. Professional, courteous and prompt, Simon was able to identify, attend and solve the problem with our alarm system before other engineers had even returned my phone call. Thank you Simon, see you soon for our alarm takeover!"
"Excellent customer service from initial contact through to installing the alarm system and cameras and the after service. They made the whole process so easy and you could tell they are a hard working and solid team who take pride in what they do. We are so happy with the end result and would definitely recommend Alder Security to anyone thinking about having security."
This company was fast, efficient, brilliantly priced and friendly and knowledgeable. They fitted security cameras for us and walked us through the app and instructions. We are hoping to use again for smoke detector alarms
"Hi Simon, It was a pleasure doing business with your company Alder Security. We were delighted with the CCTV installation work carried out on the house. You and your assistant Calum were a credit to your company having conducted yourselves in a very professional, knowledgeable and friendly manner and left everything neat and tidy upon completion. The results were excellent, and I would have no hesitation whatsoever in recommending the company to my colleagues and friends. "
Wanting to improve our home security we contacted Simon at Alder Security for advice and a quote. Simon Alder visited us and was really helpful in assisting us to select the system that best suited our needs. That was in terms of the areas covered by the sensors and, importantly for us 'non-techies', the ease with which the systems actually operated. Simon identified openly and clearly up front the benefits/dis-benefits of wireless and wired systems in our situation, and the cost implications of installing and maintaining the systems (replacement batteries, servicing, adding additional sensors if required for smoke and carbon-monoxide etc.). We had all the information we needed to make an informed decision on how to proceed. Installation was very painless, very well executed and explained, and we actually enjoyed the experience! Throughout we received a very helpful, considerate, professional and informative service and we would thoroughly recommend Alder Security to anyone.
Alder security were quick to install our cctv & alarm system. Just before Christmas when everyone is so busy we thank you so much and would highly recommend this very professional company. Thank you Simon & Callum. Merry Christmas !
Brilliant service, really neat and tidy, explained everything thoroughly and system is really easy to use feel much more secure now thank you.
"I HAD AN ISSUE WITH CCTV AT THE GARAGE AND CALLED SIMON, NEXT DAY IT WAS FIXED. GOOD JOB SIMON"
QUICK FIX (GARAGE)
"Brilliant service thank you Alder Security. Smoke detectors started going off randomly and Alder provided and installed new ones within days. Excellent communication throughout and just so friendly and helpful. Will use them again. Can recommend. "
"Excellent friendly and professional service from Simon, I would always recommend Alder Security to anyone."
"I was pleased with the price of the security system, and the installation was carried out promptly, professionally and carefully. I was given a full description of the system features and an explanation of the app. Full marks!"
"We run a charity of supported houses and needed work done and advice. We couldn't be happier with how helpful and open Alder security was and their flexibility, we will definitely continue to use them and recommend them!"
"Can’t speak highly enough of Simon. He kitted our house out front and back, security and smoke detectors. We have cats so he found ways to secure the house without the detectors picking up our 4-pawed friends.
We now have remote control over our house, and fully understand it thanks to Simon taking the time to explain. Awesome service."
Highly recommended. I found these guys by chance doing a quick search. The products are great and the guys installing at friendly and really willing to help you to ensure you understand how to use the systems.
They also take the time to really assess the best security needs of the property and advise you where to place cameras.
Great service!
Simon and colleagues did my cctv and alarm system. I am very pleased with the work, all completed and up and running! They were very respectful of my property throughout and left everything clean and tidy.
"Needed an Alarm Engineer to take over and subsequently maintain the installation. No problem for Alder Security. Totally competent."
Brilliant service from Alder security today, Simon and Sam were brilliant and efficient, would highly recommend to anyone!
"Really impressed with Alder Security. Professional, courteous and prompt, Simon was able to identify, attend and solve the problem with our alarm system before other engineers had even returned my phone call. Thank you Simon, see you soon for our alarm takeover!"
"Excellent customer service from initial contact through to installing the alarm system and cameras and the after service. They made the whole process so easy and you could tell they are a hard working and solid team who take pride in what they do. We are so happy with the end result and would definitely recommend Alder Security to anyone thinking about having security."
This company was fast, efficient, brilliantly priced and friendly and knowledgeable. They fitted security cameras for us and walked us through the app and instructions. We are hoping to use again for smoke detector alarms
"Hi Simon, It was a pleasure doing business with your company Alder Security. We were delighted with the CCTV installation work carried out on the house. You and your assistant Calum were a credit to your company having conducted yourselves in a very professional, knowledgeable and friendly manner and left everything neat and tidy upon completion. The results were excellent, and I would have no hesitation whatsoever in recommending the company to my colleagues and friends. "
Wanting to improve our home security we contacted Simon at Alder Security for advice and a quote. Simon Alder visited us and was really helpful in assisting us to select the system that best suited our needs. That was in terms of the areas covered by the sensors and, importantly for us 'non-techies', the ease with which the systems actually operated. Simon identified openly and clearly up front the benefits/dis-benefits of wireless and wired systems in our situation, and the cost implications of installing and maintaining the systems (replacement batteries, servicing, adding additional sensors if required for smoke and carbon-monoxide etc.). We had all the information we needed to make an informed decision on how to proceed. Installation was very painless, very well executed and explained, and we actually enjoyed the experience! Throughout we received a very helpful, considerate, professional and informative service and we would thoroughly recommend Alder Security to anyone.
Alder security were quick to install our cctv & alarm system. Just before Christmas when everyone is so busy we thank you so much and would highly recommend this very professional company. Thank you Simon & Callum. Merry Christmas !
Brilliant service, really neat and tidy, explained everything thoroughly and system is really easy to use feel much more secure now thank you.
"I HAD AN ISSUE WITH CCTV AT THE GARAGE AND CALLED SIMON, NEXT DAY IT WAS FIXED. GOOD JOB SIMON"
QUICK FIX (GARAGE)
"Brilliant service thank you Alder Security. Smoke detectors started going off randomly and Alder provided and installed new ones within days. Excellent communication throughout and just so friendly and helpful. Will use them again. Can recommend. "
"Excellent friendly and professional service from Simon, I would always recommend Alder Security to anyone."
"I was pleased with the price of the security system, and the installation was carried out promptly, professionally and carefully. I was given a full description of the system features and an explanation of the app. Full marks!"
"We run a charity of supported houses and needed work done and advice. We couldn't be happier with how helpful and open Alder security was and their flexibility, we will definitely continue to use them and recommend them!"
"Can’t speak highly enough of Simon. He kitted our house out front and back, security and smoke detectors. We have cats so he found ways to secure the house without the detectors picking up our 4-pawed friends.
We now have remote control over our house, and fully understand it thanks to Simon taking the time to explain. Awesome service."
Highly recommended. I found these guys by chance doing a quick search. The products are great and the guys installing at friendly and really willing to help you to ensure you understand how to use the systems.
They also take the time to really assess the best security needs of the property and advise you where to place cameras.
Great service!
Simon and colleagues did my cctv and alarm system. I am very pleased with the work, all completed and up and running! They were very respectful of my property throughout and left everything clean and tidy.
"Needed an Alarm Engineer to take over and subsequently maintain the installation. No problem for Alder Security. Totally competent."
Brilliant service from Alder security today, Simon and Sam were brilliant and efficient, would highly recommend to anyone!
"Really impressed with Alder Security. Professional, courteous and prompt, Simon was able to identify, attend and solve the problem with our alarm system before other engineers had even returned my phone call. Thank you Simon, see you soon for our alarm takeover!"
"Excellent customer service from initial contact through to installing the alarm system and cameras and the after service. They made the whole process so easy and you could tell they are a hard working and solid team who take pride in what they do. We are so happy with the end result and would definitely recommend Alder Security to anyone thinking about having security."
This company was fast, efficient, brilliantly priced and friendly and knowledgeable. They fitted security cameras for us and walked us through the app and instructions. We are hoping to use again for smoke detector alarms
"Hi Simon, It was a pleasure doing business with your company Alder Security. We were delighted with the CCTV installation work carried out on the house. You and your assistant Calum were a credit to your company having conducted yourselves in a very professional, knowledgeable and friendly manner and left everything neat and tidy upon completion. The results were excellent, and I would have no hesitation whatsoever in recommending the company to my colleagues and friends. "
Wanting to improve our home security we contacted Simon at Alder Security for advice and a quote. Simon Alder visited us and was really helpful in assisting us to select the system that best suited our needs. That was in terms of the areas covered by the sensors and, importantly for us 'non-techies', the ease with which the systems actually operated. Simon identified openly and clearly up front the benefits/dis-benefits of wireless and wired systems in our situation, and the cost implications of installing and maintaining the systems (replacement batteries, servicing, adding additional sensors if required for smoke and carbon-monoxide etc.). We had all the information we needed to make an informed decision on how to proceed. Installation was very painless, very well executed and explained, and we actually enjoyed the experience! Throughout we received a very helpful, considerate, professional and informative service and we would thoroughly recommend Alder Security to anyone.
Alder security were quick to install our cctv & alarm system. Just before Christmas when everyone is so busy we thank you so much and would highly recommend this very professional company. Thank you Simon & Callum. Merry Christmas !
Brilliant service, really neat and tidy, explained everything thoroughly and system is really easy to use feel much more secure now thank you.
"I HAD AN ISSUE WITH CCTV AT THE GARAGE AND CALLED SIMON, NEXT DAY IT WAS FIXED. GOOD JOB SIMON"