Burglar Alarm Servicing & Repair London
Tamper warnings, low battery, false alarms, app disconnections — we fix them all. Service any major brand, even if we didn’t install it. DBS-checked engineers, transparent fixed-price quotes from £120 inc VAT.
Trusted Local Engineers, Not a Call Centre
Your alarm engineer is the same person who walks through the door — DBS-checked, fully insured, and accountable.
DBS Checked
Every engineer is DBS-checked, fully insured, and uniformed. Photo ID provided on every visit.
Checkatrade Verified
4.9★ rated across 200+ reviews. We work for our reputation, not a faceless brand.
Which? Trusted Trader
Independently vetted by Which? Magazine — held to UK consumer standards.
3,000+ Installations
A decade installing & servicing alarms across West and Greater London. Yours won’t be our first.
Common Alarm Faults We Fix
Most alarm problems fall into one of these six categories. We diagnose the cause on-site and fix it the same day where possible.
Tamper Warnings
“Tamper” or “T” displayed on your keypad. Usually a sensor cover, panel lid, or bell-box switch issue.
Low Battery Alerts
Beeping every 30s or “low battery” warning. Standby battery typically needs replacement every 3–5 years.
False Alarms
Activating with no intruder. Often caused by faulty PIRs, insects, draughts, or pet-immunity miscalibration.
App Disconnection
Texecom Connect, HomeControl+, Visonic-NEXT, or RISCO Cloud showing offline. Usually a SmartCom/SIM issue.
Sounder & Siren Faults
External siren chirping, strobe stuck on, or no sound on activation. Often a bell-box battery or wiring fault.
Communication Failure
Lost signal to monitoring centre, 4G/IP comms fault, or PSTN dialler offline. We re-test & re-route.
Choose Your Service Package
Fixed prices, no hidden costs. All prices include VAT. Same-day callouts available across London & Home Counties.
- On-site fault diagnosis
- Reset tamper / low battery alerts
- Test all wired & wireless devices
- Walk-through user re-training
- Written fault report
- Quote for any required parts
- 1-hour engineer time included
- Everything in Diagnostic, plus:
- New 12V 7Ah panel battery
- Sensor & keypad clean & test
- Sounder/siren battery check
- App connectivity re-pair
- Walktest & sensitivity tune
- Annual service certificate
- Insurance compliance check
- Recommission abandoned/legacy install
- Reset all engineer & user codes
- Full system audit & documentation
- Wiring & cable trace
- Replace faulty keypad if needed
- Smart upgrade options quoted
- Issue Takeover & Test Certificate
- BS EN 50131 / PD 6662 verified
- Multiple panels / multi-site
- Commercial premises & HMOs
- ARC / police response re-registration
- Complex fault investigation
- Cable run repairs in walls/voids
- Maintenance contracts (annual / quarterly)
- Out-of-hours emergency callouts
We Service Every Major Alarm Brand
Whether we installed it or not, we’ll service, repair, or upgrade your existing system. We carry parts and engineering software for all the brands below.
Don’t see your brand? We also service Risco, Honeywell Galaxy, Orisec, ADT legacy panels, Yale, and Castle Care-Tech. Call us with your panel model — we likely cover it.
How an Alarm Service Visit Works
From your first call to a fully working alarm — most jobs done in a single visit.
Call or Request Online
Tell us your panel make/model and the symptoms. Initial advice is always free.
Same/Next-Day Visit
We schedule an engineer typically within 24 hours. Urgent jobs same-day where possible.
Diagnose & Quote
Engineer identifies the issue on-site and confirms the fix cost before any work.
Fix & Certify
Repair completed, system tested, walk-through with you, written report and certificate emailed.
Thorough, Documented, Insurance-Ready
Whether you choose a diagnostic visit or a full annual service, you get the same engineering rigour.
Burglar Alarm Service FAQs
How much does a burglar alarm service cost in London?
Can you service an alarm system that wasn’t installed by SatFocus?
How often should a burglar alarm be serviced?
My alarm is beeping every 30 seconds — what’s wrong?
Can you upgrade my old wired alarm to app control?
Do you replace alarm batteries?
What if my alarm panel is too old to repair?
Do you offer same-day or emergency callouts?
Alarm Playing Up? Let’s Sort It Today.
Call now for a free phone diagnosis. Most jobs booked within 24 hours. DBS-checked engineers, fixed prices, no surprises.
