Black and White Key Security Ltd

Black and White Key Security Ltd Professional security company with many years experience, specialising in alarm response. David Kirk founded Black and White Key Security Ltd in 2001.

Our dedicated team will tailor-make your security requirements ensuring that your home or business is safe. David had a long Police and Security industry background before starting the company and utilised all of the skills he learned during his time to build Black and White Key Security into the professional efficient security company you see today. Family owned security company who specialise in

alarm response. We are a professional security company with many years experience, specialising in alarm response. Our dedicated team will tailor make your security requirements ensuring that your home or business is always left in safe hands.

Vacant Property Inspections - 🏁Call us for more information about all of our security services 0808 169 9913
26/01/2026

Vacant Property Inspections - 🏁
Call us for more information about all of our security services
0808 169 9913

For more information on any of our services or if you just want some free security advice please give us a call on 0808 ...
13/01/2026

For more information on any of our services or if you just want some free security advice please give us a call on 0808 169 9913
:ourconcern

Openings & Lock-UpsAt the end of the working day, who locks up and secures your premises? Don’t leave this responsibilit...
10/01/2026

Openings & Lock-Ups
At the end of the working day, who locks up and secures your premises? Don’t leave this responsibility to staff or cleaners.

We are fully insured and SIA-approved contractors, providing reliable and professional security services.

📞 Call 0808 169 9913 for more information.

For more information on our alarm response service or if you just want some free security advice please give us a call o...
03/12/2025

For more information on our alarm response service or if you just want some free security advice please give us a call on 0808 169 9913
:ourconcern

Open/Lock ups - At the end of the working day who locks up and secures your premises? Do not leave the responsibility to...
25/11/2025

Open/Lock ups - At the end of the working day who locks up and secures your premises? Do not leave the responsibility to staff or cleaners. We are fully insured and endorsed by the SIA as an approved contractor. Call 0808 1699913 for more information

Is your property ‘Winter Secure’?As the days grow shorter and the temperatures drop, many of us spend more time indoors—...
17/11/2025

Is your property ‘Winter Secure’?

As the days grow shorter and the temperatures drop, many of us spend more time indoors—or away on winter vacations. Unfortunately, this season can also invite an increase in home break-ins and weather-related damage. Here are a few simple winter home security tips to help keep your home safe and sound all season long.

1. Keep It Well-Lit

Dark evenings make it easier for burglars to go unnoticed. Install motion-sensor lights around entryways, garages, and driveways. Consider using smart bulbs or timers to keep your home looking occupied even when you’re away.

2. Lock Up and Double-Check

Cold weather can cause doors and windows to warp slightly, which might prevent them from locking properly. Before winter sets in, inspect all locks and latches to ensure they’re secure. Don’t forget to lock side doors & gates as well as garage entrances.

3. Secure Packages and Deliveries

Online shopping often spikes during the holidays—making porch thefts more common. Use a secure parcel box, request delivery notifications, or have packages sent to a pickup location if you’re not home. Also consider how you dispose of packaging that details what its contents was.

4. Be Smart When Traveling

Heading out for the holidays? Avoid posting travel plans publicly online. You can also use smart security cameras to monitor your property remotely.

5. Protect Against the Elements

Home security isn’t just about intruders—winter weather can do its own damage. Check that pipes are insulated, gutters are clear, and your heating system is functioning safely. A small maintenance check now can prevent major issues later.

Please get in touch for any security advice, enquiries into CCTV and alarm systems and our keyholding and alarm response service. For existing customers don't forget you can book in additional patrols while you're away, where we can check for leaks, move post etc.

We wish you a safe and happy Winter!
Please share this post far & wide and spread these useful winter security reminders!


All secure here! Who attends your intruder alarm when it has been activated? Our team of fully trained, insured and lice...
02/07/2025

All secure here!
Who attends your intruder alarm when it has been activated? Our team of fully trained, insured and licensed response officers are on call 24/7. Call 0808 1699913 for more information

Who attends your intruder alarm when it has been activated? Our team of fully trained, insured and licensed response off...
20/06/2025

Who attends your intruder alarm when it has been activated?
Our team of fully trained, insured and licensed response officers are on call 24/7.
Call 0808 1699913 for more information
:Ourconcern

Who attends your intruder alarm when it has been activated? Our team of fully trained, insured and licensed response off...
17/06/2025

Who attends your intruder alarm when it has been activated?
Our team of fully trained, insured and licensed response officers are on call 24/7.
Call 0808 1699913 for more information
:Ourconcern

Celebrating 10 Years of Outstanding Service 🎉Please join us in congratulating Terry on reaching an incredible 10-year mi...
05/06/2025

Celebrating 10 Years of Outstanding Service 🎉
Please join us in congratulating Terry on reaching an incredible 10-year milestone with Black and White Key Security!

Terry’s loyalty and dedication over the past decade have been nothing short of exemplary. In an industry where long service is rare, Terry has stood out with his commitment, reliability, and professionalism.

We’re incredibly proud to have him as part of the Black and White family and are truly grateful for everything he’s contributed over the years.

Here’s to many more successful years ahead, thank you, Terry!

PROUD MOMENT FOR BLACK AND WHITE KEY SECURITY LIMITED 🎉Today, we completed our 16th year SIA Approved Contractor Scheme ...
21/05/2025

PROUD MOMENT FOR BLACK AND WHITE KEY SECURITY LIMITED 🎉

Today, we completed our 16th year SIA Approved Contractor Scheme (ACS) assessment and are thrilled to announce we scored an incredible 66 points!

To put that into perspective, most companies of our size aim for around 40 points and many don’t even reach that. So to achieve 66 points is truly outstanding.

The assessor described our score as exceptional, and that speaks volumes about the dedication, professionalism, and excellence of our entire team.

This achievement is a true testament to the hard work of our management, staff, and everyone affiliated with Black and White Key Security Limited. Everything we do, we do to a standard that goes above and beyond and this result proves it.

We couldn’t be prouder of our team, and we want everyone involved to know just how valued and appreciated they are.

If you work for us, you should feel proud. If you work with us or are looked after by us, you should feel comforted and proud too.

Here’s to many more years of excellence and raising the standard in security. 👌🏼

Address

233 London Road
Hemel Hempstead
HP39RL

Opening Hours

Monday 7am - 10pm
Tuesday 7am - 10pm
Wednesday 7am - 10pm
Thursday 7am - 10pm
Friday 7am - 10pm
Saturday 7am - 10pm
Sunday 7am - 10pm

Telephone

+441442254555

Website

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