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CI

Crosby Intruder Alarms

5.0(21 reviews)See reviews ↓·Liverpool

About the company

Crosby Intruder Alarms was established in 1984 and is a family owned business. The firm is an SSAIB Registered Firm, and some of its technicians are CTSP certified. It offers installations throughout the UK, providing a nationwide installation and back-up service. The company provides CCTV, fire alarms, door entry and monitoring services.

What customers say

Based on genuine customer reviews

Intruder alarms and CCTV systems rank among the services most often described by customers of this Crosby-based security firm. A number of reviews mention the professionalism and courtesy of the team, with several singling out individual engineers by name, including Anthony, Lee, Jay and Jack, for their helpful and polite manner during camera and alarm upgrades. Tidiness is a recurring theme, with customers noting that engineers leave the property clean and tidy once the job is finished. Clear communication runs throughout the accounts, from the initial quote stage through to aftercare, including one instance of a fault being resolved without fuss and a text confirming the engineer's arrival time.

The speed of response is another point that comes up often, with a same-day fitting following a break-in and a rapid call-out for an emergency alarm issue both described. Knowledgeable advice and fair pricing are highlighted, as is the smooth running of installations completed within a day. Reviews also cover alarm upgrades, digital systems and multi-camera setups, with long-standing customers noting equipment that has remained reliable for decades. Support continues well after the initial fitting, according to the accounts.

Security serviceSecurity system supplierTraining provider

Reviews

Reviews are taken from publicly available sources.

PG
peter geoghegan30 May 2026

Now and again you deal with a company which actually does tick all the boxes. Crosby Intruder Alarms is one such company. 2 years ago this company installed a fully comprehensive security camera system in my home. Until we had a power failure it worked flawlessly. Following the power failure one camera was faulty. A call to Crosby Alarms secured a site visit the following day. The technician arrived on time, found the fault and the cause, fixed the fault and made some software changes to prevent the fault happening again. Anthony was experienced, thorough, polite and cleaned up after the work was complete. I would absolutely recommend this company.

AS
Angela Suzanne12 March 2026

I am totally appreciative of the excellent work undertaken yesterday by Anthony and Jay. They were efficient, communicative, approachable throughout and respected my property. CIA has been professional from first contact and I would have no reservations in using the company for any future work and recommendation to other potential clients. Thank you

SH
Sue Highton13 February 2026

CIA have installed 4 security cameras around the outside of our property. The team were courteous, polite & hard working & the installation was completed in one day. The cameras are of the highest quality & we are very happy with the service received from CIA.

MS
Marie Smith20 January 2026

I could not recommend this company enough. I had an emergency with my house alarm in Crosby. An engineer was here within 20 minutes and sorted it out. Fast and amazing service.

SB
Sandra B15 December 2025

Excellent customer service from start to finish. Very courteous, polite and considerate - would recommend without doubt.

F
Fiona12 September 2025

Brilliant service. Had Lee, Anthony, Jay and Jack at my house today updating our cctv system and couldnt recommend them more. Very professional, helpful, polite and most importantly very clean workers.

MP
Matthew Parry3 July 2025

I cannot recommend this company highly enough. They first fitted an alarm on my property 30 years ago and, apart from the odd fault easily sorted, it's still going strong however I decided that the time was right to upgrade to a digital system. This was effortlessly installed over half a day by their engineer Anthony who is an absolute credit to the company. Top rate all round. A fantastic local company. 10/10 well done 👏

CCTV & alarm installers in Liverpool compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 12 businesses in this category in Liverpool are compared.

RankProviderRatingReviewsOpen Sat.
1Crosby Intruder Alarms (this page)★ 5,021No
2Alarm Repairs★ 5,02Yes
3AOK Digital & Security Solutions★ 5,04Yes
4WOSS:UK Fire & Security Services★ 5,022Yes
5King Alarms★ 5,02Yes
Contact
+441519206912www.crosbyintruder.co.uk20 Endbutt Ln, Crosby, Liverpool L23 0TR
Working hours
Monday09:00–17:00
Tuesday09:00–17:00
Wednesday09:00–17:00
Thursday09:00–17:00
Friday09:00–17:00
SaturdayClosed
SundayClosed