★ Rated 10/10 on CheckatradeSSAIB AccreditedISO 9001 & ISO 14001 Certified600+ Systems Installed
Gate Safe Trained EngineersPaxton Gold PartnerHikvision Platinum PartnerAjax Approved Installer
More Than an Installer
Watch the 1-minute welcome from Dr Threadgold, co-owner. (1:23)
We work as partners with the organisations we protect. That means understanding your compliance requirements, rather than just your floor plan. See how we approach security differently.
What We Do
Six core services. One accountable team.
CCTV Systems
HD and 4K surveillance designed around your site. Remote viewing, intelligent alerts, and footage that stands up as evidence. Over 500 cameras monitored daily.
Fire Alarm Systems
BS 5839 compliant fire detection designed to the correct category for your building. Addressable, conventional, and wireless systems. SSAIB certified installation.
Intruder Alarms
SSAIB approved intruder detection with police response capability. Wireless or hardwired systems with intelligent motion sensors that filter false alarms. Monitored 24/7 from our UK control room.
Access Control
Card, fob, biometric, and keypad systems with full audit trails. Integrated with CCTV so you can see who entered, not just which credential was used.
24/7 Monitoring
UK-based control room staffed around the clock. Live video verification, emergency services liaison, and system health monitoring. Your security does not clock off.
Nurse Call Systems
HTM 08-03 and BS 5839-9 compliant systems for care homes, hospitals, and assisted living. Every call logged, every response tracked, CQC audit-ready.
Trusted by Leading UK Businesses
A Different Standard
Hawthorne's ownership comes from medicine, the most regulated profession in the UK. In that world, ethics are not a company value on a wall. They are a condition of practice.
In December 2024, that same ownership team acquired SSY Group and rebuilt it as Hawthorne. The client relationships SSY had built over two decades were worth protecting. The standards behind them were not. So we replaced the standards, rebuilt the team, and kept the clients.
Transparent pricing. Honest assessments. Accountability that does not disappear after the invoice is paid. In an industry where that remains the exception, we intend to make it unremarkable.
Why Choose Us
Monitored Round the Clock
Every system we install connects to our 24/7 UK control room. When an alarm triggers, trained operators verify it with live video before escalating. Real alerts, real response.
Engineers Who Care
Our installation teams treat every site like it matters. Clean cable runs, tidy finishes, minimal disruption. The kind of work you notice because it looks right, not because something went wrong.
One Company, Full Coverage
CCTV, fire, access control, intruder alarms, and monitoring. All from one team. One point of contact, one standard of care, one company accountable for the whole system.
Clients Who Stay
Porsche, Del Monte, Banham Poultry, Spire Healthcare. Our clients stay because we deliver what we promise. 600+ returning customers is not a marketing claim. It is a retention rate.
What Our Customers Think
About Us
Packserve were happy recommended this company to a commercial client of ours with a large food manufacturing facility that needed a new system and 24/7 monitoring. The feedback received was superb. From initial call to installation and ongoing support, this company have been incredibly professional and clearly care about their service. Happy to recommend to our other partners.
Jon Puleston-Jones
Where We Work
Based in Norwich, working across East Anglia and beyond.
Ready to Talk?
Our Accreditations
FAQ's & Latest Insights
Hawthorne has promoted Leanne Osborne to Managing Director following a strong start to 2026, as the business grows, wins new contracts, and continues its development after the acquisition and rebrand of SSY.
New cabling rules. Mandatory evacuation plans. Second staircases in high-rises. Three separate regulatory changes are landing in 2026, and the window for catching up is closing.
Realistic UK pricing for commercial CCTV in 2026. From cost per camera to full site installations - we break down what you should actually expect to pay.