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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

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

Our Customers

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

    Mr Holmes, Edinburgh
  • "We are delighted with every aspect of the service provided by CSS, many thanks."

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

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

    Mr Logan, Edinburgh
  • "Very good service."

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

    Mr Dario, Glasgow
  • "No complaints your engineers were first class."

    Mr Mrs Martin, Bishopbriggs
  • "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
  • "Your service is prompt and efficient."

    Mrs Melville, Bishopbriggs
  • "Very good service no complaints at all."

    M Beveridge, Kilmacolm
  • "There is always room for improvement but in our case with CSS we cant put our finger on it."

    Mr Mrs Ghaznau, Edinburgh
  • "You cant improve on service! perfection."

    Mrs Thomson, Bearsden
  • "The engineer was excellent in manner, attitude, and his competence very impressive."

    Mr Albutt, Glasgow
  • "The Installation engineer is a credit to your company. Overall im very satisfied with your service."

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

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

    Mrs Campbell, Glasgow
  • "Entirely happy with the system."

    Mr Dearden, Renfrew
  • "Remedial works carried out quickly. Thanks."

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

    Mr Conlan, Beith
  • "No complaints, excellent service."

    M.G C, Musselburgh
  • "System was not 100% at first but was rectified quickly thank you!"

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

    Mr Mrs Fabb, Glasgow
  • "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 had a complaint that was dealt with promptly and efficiently to my complete satisfaction."

    Mr Turner, Bearsden
  • "We are very pleased with our system so far."

    Mr Cumming, Lenzie
  • "The service from your rep and engineer was excellent."

    Mr Pia, Eskbank
  • "Very happy with service given."

    Mr Duffin, Glasgow
  • "Good quality service."

    Mr Wilson, Glasgow
  • "Please maintain your standards."

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

    E.Wilson, Milngavie
  • "I would recommend CSS to friends and colleagues."

    Dr Mckean, Alva
  • "The two engineers who did the work were extremely helpful and the quality of their work exceptional I am completely satisfied."

    K Mcwilliam, Ardrossan
  • "Overall service was excellent especially from your surveyor who was very very helpful."

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

    Mrs Johnston, Largs
  • "I had a problem and it was handled efficiently and to my satisfaction."

    Mr Wilson, Kirkintilloch
  • "Initial fault was rectified immediately. Great service."

    Mrs Gordon, Bearsden
  • "Standard of service was excellent from start to finish completely hassle free. Thanks!"

    Mr Mrs Deverill, Old Kilpatrick
  • "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
  • "At your standard theres no need to improve but dont get complacent."

    Mr Graham, Dalry

CSS Accreditation

CSS are accreditied by the following organisations

BT Redcare accreditation Nacoss accreditation

Inverstors in people accreditation