Covering the whole of the East Midlands

COMMERCIAL SECURITY SPECIALISTS

Commercial Intruder Alarm Systems In The East Midlands

Protect your business with a professionally installed commercial intruder alarm system from Trisec Ltd. We design, install and maintain reliable alarm systems for businesses across Newark, Nottingham, Grantham, Lincoln and the wider East Midlands.
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Protect Your Business With Confidence
Whether you’re securing a single office or multiple commercial premises, our experienced engineers can recommend the right intruder alarm system for your business. Contact us today to arrange a free site survey and quotation.
  • WHY PARTNER WITH TRISEC

Commercial Security You Can Depend On

For over 30 years, Trisec Ltd has helped businesses protect their staff, premises and assets with professionally installed intruder alarm systems. Every system is designed around your building, your operating hours and your security requirements to provide reliable protection without unnecessary complexity.

Over 30 years of industry experience

SSAIB-accredited security specialists

Bespoke alarm systems for commercial premises

Wired and wireless alarm solutions

Professional installation and maintenance

24-hour emergency engineer support

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  • COMMERCIAL INTRUDER ALARM SYSTEMS

Tailored Protection For Every Business

Every business has different security requirements. Our experienced engineers design intruder alarm systems that provide effective protection while fitting seamlessly into your day-to-day operations.

We install alarm systems for offices, retail stores, warehouses, factories, industrial estates, schools, healthcare facilities, vehicle dealerships, farms, construction sites and apartment developments. Whether you’re protecting a single unit or a multi-site operation, we’ll recommend a solution that meets your requirements today and allows room for future expansion.

Every installation begins with a detailed site survey so we can identify potential risks and design a system that delivers dependable protection.
  • OUR SECTORS

Commercial Alarm Systems Across Every Industry

Trisec Ltd works with businesses across a wide range of sectors including offices, retail premises, shopping centres, warehouses, factories, industrial estates, schools, public sector buildings, farms, vehicle dealerships and commercial developments throughout Newark, Nottingham, Grantham, Lincoln and the wider East Midlands.
Homes & Apartments
Shopping Centres & Retail Stores
Car Dealers & Vehicle Storage
Commercial Offices
Factories & Manufacturing
Industrial Estates & Business parks
Warehouses & Distribution
Construction Sites
Power Stations & Utility Sites
Farms & Rural Properties
Apartment Developments
Car Parks & Vehicle Sites
Schools & Educational Sites
Public Sector & Community
Homes & Apartments
Shopping Centres & Retail Stores
Car Dealers & Vehicle Storage
Commercial Offices
Factories & Manufacturing
Industrial Estates & Business parks
Warehouses & Distribution
Construction Sites
Power Stations & Utility Sites
Farms & Rural Properties
Apartment Developments
Car Parks & Vehicle Sites
Schools & Educational Sites
Public Sector & Community
  • TRUSTED COMMERCIAL SECURITY

Supporting Your Business Long After Installation

Our service doesn’t end once your alarm has been installed. We provide ongoing servicing, repairs, upgrades and technical support to keep your security system operating as it should.

If an issue arises outside normal business hours, our engineers are available with a 24-hour emergency callout service to minimise disruption and restore your security as quickly as possible.

Free Commercial Site Surveys

Scalable Alarm Systems

24-Hour Emergency Support

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  • WHAT OUR CLIENTS SAY
Trusted By Homes And Businesses
Across The East Midlands

We’re proud of the relationships we’ve built over 30 years. Here’s what some of our clients have to say about working with us.

Scott B

Outstanding Service & Pricing

“I can not recommend this company highly enough! Really speedy and friendly communication, very fair pricing, wonderful care and attention during whole process including installation by the lovely Connor….i have dealt with numerous alarm and CCTV companies over the last 20 years and Mark the MD and his team are a dream to deal with and better than any others i have ever dealt with.”
Andrew D

Great customer service

“Really great customer service from Mark who went through our alarm system requirements followed up by engineer Connor who installed the detectors and control box and went through the user set up and menu options.

I would definitely recommend.”
Julie B

Five star service

“I received an excellent all round friendly and professional service from Trisec. Good value product with ongoing support and i would highly recommend Trisec.”
Chris B

CCTV Installation

“Mark & his team were excellent! – the site visit to final installation all went really smoothly – very professional team!”
Tahir A

Outstanding Company So glad we found them

“Our initial interactions with Trisec were warm and technically oriented. Mark consistently provided precise responses, instilling confidence in their capabilities. The alignment between Trisec’s approach and our values drove our decision to choose them as our service provider…”
Doreen M

A very professional company

“A very good experience from the outset. Mark explained the system well and Connor was very efficient during the installation.”
Ann H

Top quality service from start to finish

“Top quality service from start to finish.
Super quick response from Mark to my enquiry and then my new cctv system was installed within 2 weeks by Connor, who was personable, helpful and informative about our new system.”
Alan H

Great service & products

“Top company
Installed new alarm system to a large house in a day and cleaned up and took the rubbish away.
Excellent service”
Ray J

thank you to Mark and team

“They installed four camera recording system. The end results were excellent. When we wanted a change to the final system, they make the change and did not charge any extra! Cannot fault their professionalism. Wouldn’t hesitate to recommend them”
Dave A

Dream team

“Needed an alarm and cctv system after several breaking in the area. Rang three companies, one just wanted to sell me anything, the next was just like a car salesman, plenty of banter but no idea!! Mark was fantastic!!”
Richard H

If only everything was this easy

“Trisec have been looking after my alarm systems for many years now. Naturally, the Covid lockdown was the time selected by my system to throw a ‘dicky fit’ and reward me with a call from Central Station at 1.00am. I contacted Trisec and the response was a visit from Mark at a speed that would be envied by Road Runner and Wile E Coyote.”
Tim E

Excellent in every way

“Today we had a Home CCTV system fitted by Mark & Connor from Trisec. From the initial site assessment and quotation to the installation being carried out today, everything has been perfect. Both guys treated my house like it was their own, taking great care to carry out a seamless and tidy installation without unsightly wiring….they even went as far as hoovering up afterwards!”
  • WHAT OUR CLIENTS SAY

Our Latest Projects At Trisec

We’re proud of the relationships we’ve built over 30 years. Here’s what some of our clients have to say about working with us.

Alarm With App

Domestic Intruder Alarm

CCTV & Alarm

Commercial CCTV

CCTV With Alarm Keypad

Domestic CCTV & Alarm

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  • accredited & trusted

Recognised For Doing Security Properly

Accreditation isn’t a box-ticking exercise for us. It’s proof that every system we install meets a recognised standard, not just our own. Combined with industry-leading monitoring technology, you get protection you can actually rely on.

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