System Maintenance

Our maintenance department is one of the best in the industry thanks to the very experienced team we have running it and our long-standing NSI Gold certification is evidence of that.

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    As one of the very last security companies that still operates from an office in central London, with friendly and experienced staff who are dedicated to providing excellent customer service.

    We pride ourselves in our flexible and efficient service that truly puts the customer first.

    Why Have a Maintenance Agreement?

    It is a well known fact that regularly maintained systems are cheaper to run in the long term and much more reliable day to day.  Police forces require all monitored intruder alarms to be professionally maintained in order to get a police response. Insurance companies often make this a requirement too.

    In addition, our contracts give you 24/7 access to engineers, maximum 4 hour response times and preferential rates for call outs and replacement equipment.

    We’re There For You

    Most of our staff have been with SDS for a long time meaning they have had time to form strong relationships with clients. The same goes for our home security specialists, we always try to send an engineer that you are familiar with.

    When routine servicing comes around we offer guaranteed AM/PM appointments. However, if possible, we can carry out remote diagnostics to save you time.

    Home Security Takeovers

    We are happy to takeover or repair non-SDS systems. This includes emergency call-outs, depending on availability. We tend to send a surveyor to assess the system who then provides a quote. If you’re interested in a free surveyor or want to know more about our maintenance services, please don’t hesitate to get in contact.


    Gold Level Service

    SDS have been NSI Gold approved for 23 consecutive years.

    Gold status is only awarded to companies who consistently meet the industry’s highest standards through ISO9000 Quality Management as well as the relevant British and European Standards. NSI inspectors visit us, and random installations every six months.

    This is proof of our commitment to quality assurance and demonstrates that SDS work to the highest recognised industry standards as demanded by the police, fire and rescue services and insurance industry.

    Why SDS Security

    Free Property Security Survey from an experienced surveyor

    NSI Gold accredited for 23 consecutive years

    Over 30 years experience in installation and maintenance

    Kent and London-based fitting/maintenance teams

    SMS alerts or 24/7 security monitoring with police and keyholder notifications

    All staff are police checked for complete peace of mind