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CSS - Connelly Security Systems

CSS are one of the market leaders in the supply and installation of new generation security systems for both the commercial and residential markets in Scotland. We have direct links to the emergency services headquarters across Scotland and we operate a 24hr manned alarm receiving centre offering genuine customer support services available for you 24hrs a day.

CSS have achieved recognition from the National Security Inspectore (NSI) by becoming approved as a Gold Installer (the highest level of accreditation) for the following services we provide to our extensive customer base.

Intruder alarms, CCTV systems, Access Control systems, Fire alarms, & Alarm Receiving Centre.

"Unfortunately many of our enquiries come from customers who have been unfortunate to be a victim of a house break-in. We would rather bolt the door before the horse runs off."

Paul Connelly, Managing Director of CSS

Serious about business security

If you are serious about business security talk to us, we have been providing turn-key solutions to our customers for over 25 years and always take a long term view in ensuring the equipment we offer is robust with an acceptable life cycle.

CSS do not operate in the cheap and cheerful market; the products we source from our supply chain must be rigorously tested and be of a substantially high quality. In fact there are hundreds of our systems that are over 20 years old and still in good working order.

Providing quality security for your home

CSS are the market leader in the supply and installation of new generation intelligent security systems for both the business and domestic markets in Scotland.

Most new generation intelligent CSS security systems link to our 24h hour alarm receiving centre. When we receive a confirmed alarm we will notify the Police service and a nominated key-holder to attend your home.

Our Clients

  • Cash4Gold logo
  • Glasgow City Council logo
  • Ryden International logo
  • Marley logo
  • Strathclyde Police logo
  • Costa Coffee logo
  • Subway logo
  • East Dunbartonshire Council logo
  • Perfume Shop logo
  • Bellway Homes logo
  • Church Of Scotland logo
  • University of Glasgow logo
  • Travel Inn logo
  • Clackmannanshire Council logo
  • Britannia Life logo
  • O'Brien Homes logo
  • David Wilson homes logo
  • Cornhill Insurance logo
  • ASDA logo
  • Clydesdale Bank logo
  • Tulloch Homes logo
  • Rox Jewellery logo
  • Glasgow Caledonian University logo
  • National Trust for Scotland logo
  • Macfarlane Homes logo
  • CBRE logo
  • Daily Record logo
  • Charles Church Homes logo
  • Stanley Casinos logo
  • Persimmon Homes logo
  • GVA Grimley logo
  • Bryant Homes logo
  • Jones Lang LaSalle logo
  • Beefeater Restaurants logo
  • Speirs gumley logo
  • TGI Friday's logo
  • Brewers Fayre logo
  • Scottish Water logo
  • Whitbread PLC logo
  • Strathclyde Fire Brigade logo
  • West Lothian Council logo
  • Chicken Cottage logo
  • Carronvale Homes logo
  • South Lanarkshire Council logo

Our Customers

  • "I had a problem and you came out the same day , not many firms respond that quick thanks. I didnt need to take time off work."

    Mr Thomson, Falkirk
  • "I cant think of anything that you can improve in customer service."

    Mrs McLay, Bearsden
  • "System was installed well, I had a teething problem that was attended to promptly thank you."

    Mr Holmes, Edinburgh
  • "I would highly recommend your firm as the service was first class. I would also like to say that the surveyor was the best ive came across he was honest, helpful and did not pressure me in any way."

    Mrs Devlin, Glasgow
  • "System was not 100% at first but was rectified quickly thank you!"

    Mr McComb, Milngavie
  • "I had a problem that was attended to straight away Thank you!"

    Mr Wong, Glasgow
  • "No complaints, excellent service."

    M.G C, Musselburgh
  • "No complaints your engineers were first class."

    Mr Mrs Martin, Bishopbriggs
  • "We are entirely satisfied many thanks for a job well done. The wiring is scarcely visible."

    Mr Mrs Fabb, Glasgow
  • "At your standard theres no need to improve but dont get complacent."

    Mr Graham, Dalry
  • "Standard of service was excellent from start to finish completely hassle free. Thanks!"

    Mr Mrs Deverill, Old Kilpatrick
  • "I would recommend CSS to friends and colleagues."

    Dr Mckean, Alva
  • "We are delighted with every aspect of the service provided by CSS, many thanks."

    Mr Young, Stirling
  • "Don't think you can improve in any way - excellent service + very helpful staff"

    Mr Conlan, Beith
  • "I had a complaint that was dealt with promptly and efficiently to my complete satisfaction."

    Mr Turner, Bearsden
  • "Unfortunately I got the system installed after I had a break-in. I was distressed & much appreciated the speed at which this was all dealt with. Your Surveyor was very helpful and re-assuring."

    M. Donaldson, Edinburgh
  • "You cant improve on service! perfection."

    Mrs Thomson, Bearsden
  • "Very pleased with service."

    Mr Logan, Edinburgh
  • "The service from your rep and engineer was excellent."

    Mr Pia, Eskbank
  • "I had a problem and it was handled efficiently and to my satisfaction."

    Mr Wilson, Kirkintilloch
  • "There is always room for improvement but in our case with CSS we cant put our finger on it."

    Mr Mrs Ghaznau, Edinburgh
  • "The engineer was excellent in manner, attitude, and his competence very impressive."

    Mr Albutt, Glasgow
  • "Good quality service."

    Mr Wilson, Glasgow
  • "Everything you did for us was excellent."

    Mrs Campbell, Glasgow
  • "Every aspect of our installation was perfect hassle free and an excellent job."

    E.Wilson, Milngavie
  • "We are very pleased with our system so far."

    Mr Cumming, Lenzie
  • "Very good service."

    Mr Lloyd, Bothwell
  • "Excellent service across the board."

    Mr Dario, Glasgow
  • "Cant suggest any improvements to you, I have found every situation dealt with in a professional manner."

    Mrs Johnston, Largs
  • "Initial fault was rectified immediately. Great service."

    Mrs Gordon, Bearsden
  • "Remedial works carried out quickly. Thanks."

    Mr Mckay, Lenzie
  • "The two engineers who did the work were extremely helpful and the quality of their work exceptional I am completely satisfied."

    K Mcwilliam, Ardrossan
  • "Very good service no complaints at all."

    M Beveridge, Kilmacolm
  • "Very happy with service given."

    Mr Duffin, Glasgow
  • "Overall service was excellent especially from your surveyor who was very very helpful."

    L N G, Glasgow
  • "Please maintain your standards."

    Mrs Irvine, Kirkintilloch
  • "The Installation engineer is a credit to your company. Overall im very satisfied with your service."

    Mr Best, Milngavie
  • "Entirely happy with the system."

    Mr Dearden, Renfrew
  • "Your service is prompt and efficient."

    Mrs Melville, Bishopbriggs
  • "Very pleased with your company especially the surveyor who was always ready to answer my queries. Wouldnt hesitate to recommend your services."

    F D, Glasgow

CSS Accreditation

CSS are accreditied by the following organisations

BT Redcare accreditation Nacoss accreditation

Inverstors in people accreditation