CMS Keyholding is a Banham Group Company dedicated to looking after you and your property by providing Key Guards who will attend your premises following specific requests or alarm activations. We are also able to provide pre-arranged visits at timed intervals and Static Guards when required. In addition, your keys may be held for other purposes, such as being locked out of your property, or to attend in the event of other types of emergency.

Serviced Areas

  • London

Contact Details

  City Earlsfield
  Postcode SW18 4EF
  Address 20 Thornsett Road
  Phone Number 020 7627 0344

Products & Services

Alarm Response

CMS Keyholding offers emergency alarm response services for all properties. If your security system has been activated whilst you are away from your home or office, our SIA-trained Key Guards can provide fast response at any time, day or night. Our alarm response services include rapid response to:
Alarm system activations
Reports of break-ins
Attendance requests from emergency services

  • I would recommend this business

CMS Keyholding/Banham were called out to the alarm at a property.
They had to come back twice. Both Paul Karaolis and Martin Brown were very helpful, very professional and great customer service.

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Overall ratingExcellent

  • I would recommend this business

Telephone and email contact with CMS Keyholding
I phoned CMS to tell them about a change in my email address. I then remembered another change in my details so I emailed them. I had a response within an hour, which was very efficient.If only every firm I have had to notify were as competent!

Value for money
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Overall ratingExcellent

  • I would recommend this business

Attempted break in.
We had an attempted break in at our property and CMS handled this as we were away at the time. Edward who attended our home was professional, courteous and kept us informed. He arranged for the broken window to be boarded up and stayed whilst this was done, he reset the alarm and secured the house before he left. This gave us great peace of mind.

Value for money
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Overall ratingExcellent

  • I would recommend this business

I have recently signed up to CMS as we used to have a 24 hour concierge, but no longer do. Martyn from CMS was excllent as he came within 25 minutes of me being locked out. Very friendly and helpful and great service.

Value for money
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Overall ratingExcellent

  • I would recommend this business

I needed CMS to be present at my property to arrange delivery of a particularly bulky parcel. The delivery company were concerned about the over size and weight of the parcel and getting it from the van to inside the house. CMS offered to assist with the off loading and got everything done with the minimum of fuss.

Value for money
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Overall ratingExcellent

Customer Testimonials

Superb service and great value for money. Thanks to Paul and Lukas for getting us out of trouble yesterday (not for the first time). CMS are a fantastic and well-priced insurance. I can’t recommend them too highly


As usual, I can only praise CMS Keyholding for their professional service. The Key Guard’s name was Paul Williamson on the night that I had my key fobs stolen from my car and he was there, at my premises, before I arrived which was most reassuring and quite amazing. He was calm and efficient and I can only praise and thank you for having such professional employees. Yours faithfully.


I would like to pass on my thanks and appreciation for the excellent service your staff provided. I have been in the security industry for over 30 years and have to say it has been a long time since I have used a security service provider who has excelled so much on the first occasion. Both the operators on the ground and your call centre and office staff were outstanding.

Social Activity

Lost Your House Keys? Don't panic! Here at CMS Keyholding we will hold a copy of your key and our SIA-accredited K https://t.co/2hnPmLDMks
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October is National Home @SecurityMonth! Discover 4 things you didn't know a key holding company could do #NHSM17 https://t.co/8ZvHWPyyob
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When letters are visible in or around your letter box this gives #burglars a clue that your #home is unoccupied https://t.co/v6SpEbKepP
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Our attendance meant that we were able to deal with the situation quickly & the #clients repair costs were reduced. https://t.co/Qh0atTAVkT
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