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About National Fire & Security Ltd

Your first line of defence.

Real People, Real Homes

Who We Are

National Fire & Security Ltd is a national security company that provides a wide range of fire and security solutions to residential and commercial premises throughout the UK. As a company we strive to provide the highest level of service with exemplary aftersales care, offering a dedicated customer support team with a 24 hour technical support line and a 24 hour emergency callout service. Our consultants and engineers possess vast experience and are DBS checked for your security, and we take great care and pride with every customer installation utilising the security market’s finest products. Gain complete piece of mind and the protection you deserve with National Fire & Security.

Points Of Focus & Testimonials

  • Free no obligation quote
  • Your peace of mind is our business 24 / 7 / 365
  • Free plan & design service
  • Fully trained and certified professional installers
  • Fixed costs
  • Fully insured up to £1,000,000
  • No call out fees
  • 24 hour emergency support service
  • Fully guaranteed products
  • Monitoring secure by design award

Fantastic Company To Deal With

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Very efficient from start to finish and my pet shop is completely safe and protected with a fantastic 24hr Monitored alarm system. Grovehurst Pet Shop.

Most Importantly Trust Worthy

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Thank you for a very good job installing our new alarm system, great company and most importantly trust worthy. Mr and Mrs Drury.

Great Understanding Great Service

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I was surprised how simple and easy the alarm system is to use, as I have a guide dog and the system is able to cope with animals. Mr P Wiles.

I Couldn't Recommend Highly Enough

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Friendly, professional and delivered exactly what they promised. A high quality alarm system that is really easy to use. Mr C Hare.

Fantastic Service And Professional

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Enquired about medical and panic alarms for my nan. National Fire & Security were understanding and professional from 1st call to installation. Mrs Hamish.

Areas We Cover

  • Kent
  • East Sussex
  • West Sussex
  • Surrey
  • Hampshire
  • Wiltshire
  • Dorset
  • Somerset
  • Devon
  • Cornwall
  • Gloucestershire
  • Oxfordshire
  • Berkshire
  • Greater London
  • Essex
  • Hertfordshire
  • Buckinghamshire
  • Bedfordshire
  • North Hampshire
  • Suffolk
  • Cambridgeshire
  • Leicestershire
  • West Midlands
  • Shropshire
  • Staffordshire
  • Derbyshire
  • Nottinghamshire
  • Cheshire
  • Merseyside
  • Greater Manchester

Intrusion / Fire / Panic

Working With National Fire & Security, your ultimate home security solution.

Placing Your Order

Every order placed with National Fire & Security is carefully processed and checked by our sales and administration team, and prepared by our installation team to ensure customers receive the highest level of professional and personal service. Following your security installation, you are then passed to our aftersales customer care team who help with any on-going questions and support. Our company mission is to provide the ultimate fire and security solution. We do this by installing the very highest quality and most reliable market leading security devices, by working in partnership with the UK’s premier monitoring provider, and most important of all by working with unrivalled expertise, experience, passion and enthusiasm for our customers.


Our partner of choice for intruder alarm systems is Daitem, who are the inventors and European leaders in wireless security systems with over 35 years of experience and more than one million installations across Europe (holding accreditations such as EN50131). Utilising state-of-the-art technology (such as motion detectors with image recording that detect rising volumes of heat), Daitem products offer the finest 5 year product and battery manufacturer guarantees, plus Daitem smoke alarms combine both heat and smoke detection for utmost awareness and carry a 10 year manufacturer guarantee.

Cougar Monitoring

Cougar Monitoring are a national alarm receiving centre operating 24 hours per day, 365 days per year. Established in 1996 by two senior ex-police officers, the company has grown into the UK’s premier monitoring provider, with accreditations such as NSI Gold and the only monitoring company to be awarded ‘Secured By Design’ the Official Police Security Initiative. Utilising a national network of vehicles Cougar Monitoring achieves an average response time of less than 20 minutes, which enables our customers to feel safe and secure in their home. Click here to visit Cougar Monitoring.

Need Help With Your Daitem?

If you already own a Daitem intruder alarm system and require help with it, then look no further than National Fire and Security Ltd. Our fully trained Daitem installers can service and upgrade your system to meet today’s standards, including connecting you to Cougar Monitoring for ultimate security if required. You chose the market leading system, now enjoy some piece of mind that your investment into your family and home is secure. Contact us for a free no obligation survey.

We Do Not Compromise

  • Fully guaranteed service
  • Fully insured company
  • Fully trained & certified installers
  • Fully guaranteed products
  • 24 hour emergency support service
  • Monitoring holds Secured by Design (Police Initiative)

National Statistics

  • 600,000+ attempted break-ins per year across the UK
  • 71% of homes do not have intruder alarms
  • 9/10 burglars avoid homes with visible intruder alarms
  • Up to 40,000 dwelling fires per year across the UK
  • With over 50% of fatalities aged between 60 & 80
  • Ref: National statistics Police Scotland / Fire & Rescue

Working Together

Intercom / CCTV

Protecting the perimeters of your home.


By installing an intercom you are inserting a hurdle for visitors and unwanted guests to cross in order to gain access to you and your home. They must reveal themselves before any physical contact can be gained, which also reduces the likelihood that an intruder will attempt to target your home. Again National Fire and Security work alongside our technology partner Daitem in providing wireless remote entry for our customers to welcome and filter visitors. Using the portable indoor handset, you can remotely open one or several entrances, and also activate external lighting to facilitate access.


The security of your home starts with the perimeters, and by simply showing potential intruders and opportunist thieves that they are being recorded through CCTV, you are vastly reducing their interest in your home and possessions. As CCTV specialists, we can design and install a range of CCTV systems, utilising HD cameras, DVRs and video management software from Hikvision, the world’s largest supplier of video surveillance products and solutions. Position cameras in full view as deterrents or more subtly to blend in with building architecture. With National Fire & Security you are in safe hands.

Sentry21 Fire & Security Ltd

Our previous company name before changing in July 2016.

Our Previous Name & Why We Changed

In July 2016 we changed our company name at Companies House from Sentry21 Fire & Security Ltd to National Fire & Security Ltd. The reason for the change was due to several other companies within Kent and the South East that also used the name ‘Sentry’ and unfortunately this was causing confusion for many of our customers. With excellent growth and success throughout 2016, we felt the need to maintain a unique identity and reputation.

The decision to make the change mid-year in July 2016 was to coincide with our move from our existing head office at that time over to our new larger head office. Our company registration number and VAT number remained the same, and as an act of reassurance for our existing customers, we wrote to each and every one explaining the change.

If you have any questions or require assistance in any way with regards our name change, please don’t hesitate to contact us using the details below.

Contact National Fire & Security Ltd

To contact us please either submit the online form below or use the other contact methods listed.

Send Us A Message

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Our Company Details

  • National Fire & Security Ltd,
    Company No: 09618989 / VAT No: 216005947
  • Our office locations and opening times:
    – The Panorama, Park Street, Ashford, Kent TN24 8EZ
    – Houldsworth Mill, Houldsworth Street, Reddish, Stockport SK5 6DA
    – 93 George Street, Edinburgh, EH2 3ES
    Opening times: 10am to 6pm Monday to Friday
  • 0800 999 77 66
    Out of office hours calls are automatcially transfered to our emergency support service