Wireless alarms
Ajax wireless systems for finished, lived-in homes. No chasing, no redecorating, app control and instant alerts.
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Bexleyheath · Sidcup · Welling · DA
Burglar alarm installation in Bexley
Bexley is a borough of family houses: 1930s semis across Bexleyheath, Welling and Blackfen, Victorian villas in Old Bexley, and terraces and newer flats along the river at Erith and Belvedere. Your burglar alarm is planned around your own doors, windows and garden. It is surveyed in person, priced in writing, fitted and set up on your phone.
- Installing since 2012
- 3,000+ installations
- 12-month guarantee on the installation
- Covering all of Bexley
Alarms we install in Bexley
Burglar and intruder alarms, designed for your property
New systems, upgrades of old panels, takeovers of alarms other companies fitted, and servicing — for houses, flats, shops and offices. Every system is designed from a survey of the property, never from a fixed kit.
Wired & hybrid alarms
Texecom and Pyronix wired systems for renovations and new builds, cabled at first fix and installed at second fix.
Texecom alarms →Upgrades & takeovers
Old panel, lost engineer code, or an alarm the last owner left behind? We keep sound wiring and sensors and replace the panel.
Alarm upgrades →Servicing & repairs
Beeping keypads, false alarms, flat batteries and faulty detectors on Texecom, Pyronix, Visonic, Risco and other makes.
Alarm servicing →Designed for the property in front of us
Alarm design for Bexley properties
Much of Bexley was built out between the wars, so semi-detached houses with bay windows, side gates and long gardens are the norm in Bexleyheath, Welling, Blackfen and Sidcup. Old Bexley and parts of Sidcup keep older Victorian and Edwardian houses, while Erith, Belvedere and Thamesmead have more terraces, flats and newer developments. Garden access and extensions drive most alarm designs here.
Bay-fronted semis in Bexleyheath, Welling and Blackfen
The typical layout has a front door, back or patio doors, a side gate and often a garage converted into a room. Each external door gets a contact, every ground-floor room gets a motion detector, and a converted garage is treated as its own entry point because its window is often the weakest.
- Wireless system, normally fitted in a day
- Pet-tolerant detectors for homes with cats or dogs
- Garden-facing patio doors on contacts, with shock sensors if wanted
Victorian and Edwardian houses in Old Bexley and Sidcup
Older houses tend to have more ground-floor rooms, sash windows, cellars and rear additions with flat roofs. We cover each room, add shock sensors to sash windows that can be reached from the garden, and protect any first-floor room that sits above a flat-roofed rear addition.
Terraces and flats in Erith, Belvedere and Thamesmead
Terraced houses here often open straight onto the pavement with an alley behind, so the back of the house matters as much as the front. In flats, a compact wireless kit covers the entrance door and living areas, and nothing goes on the building's exterior unless the freeholder agrees.
- Back gates and alley-facing doors covered first
- Indoor siren for flats unless an external one is approved
- App alerts sent to each household member's phone
Existing alarms in Crayford, Bexleyheath and beyond
Many Bexley homes already have a wired alarm fitted years ago. Where the cables and detectors are sound, we keep them, replace the panel and keypad and add app control. It is a quicker, tidier route than a full replacement, and it brings older Texecom, Pyronix, Risco or Visonic installations up to date.
Bexley has a number of conservation areas, including Old Bexley; if your home is in one, or is listed, check with the council before fixing a siren or other equipment to the front elevation.
Guide prices
What a burglar alarm costs in Bexley
Starting prices so you can budget. Your exact price comes from the survey and is fixed in writing before anything is booked.
Most homes
Wireless Ajax alarm
From £995 inc VAT
- Finished, lived-in homes
- App control and instant alerts
- Usually fitted in a day
Wired or hybrid alarm
From £1,995 inc VAT
- Renovations and new builds
- Cable already in, or run at first fix
- Texecom, Pyronix or Ajax Hybrid
Alarm upgrade
From £495 + VAT
- New panel and keypad
- Existing wired sensors kept
- Takeovers of other firms' systems
Prices depend on the number of doors, windows and rooms. Anything that adds cost — an outbuilding, long cable runs, scaffolding — is flagged at the survey, never on the day. Monitoring and SIM connectivity are optional extras quoted separately.
How it works
From first call to protected
Free site survey
We walk the property with you and check every door, window and approach before anything is priced.
Fixed written quote
Every device by make and model, the labour and the payment terms. Usually with you within 24 hours.
Installation day
Dust sheets down, tidy cable routes, and every detector walk-tested before we leave.
Handover
App set up on your phones, everyone shown how to arm and disarm, and a completion certificate for your records.
Where we work
Covering every part of Bexley
We install burglar alarms across the London Borough of Bexley — postcodes DA1, DA5, DA6, DA7, DA8, DA14, DA15, DA16, DA17, DA18, SE2 — and the neighbouring boroughs.
BexleyheathSidcupWellingErithOld BexleyCrayfordBelvedereBlackfenAll London boroughs →Greenwich →Bromley →Havering →
Free, no obligation
Book a free alarm survey in Bexley
Tell us a little about the property and what's worrying you. We'll call back the same working day to book a time.
- ✓Call us020 8422 7918
- ✓Emailinfo@satfocussecurity.co.uk
- ✓HoursMon–Fri 8am–6pm · Sat 8am–5pm
FAQs
Burglar alarms in Bexley: your questions answered
Our Bexleyheath semi has a converted garage. Does it need extra protection?
Usually, yes. Converted garages often keep a lighter front window or door than the rest of the house, and they sit right at the front. We fit a contact on any external door, a motion detector in the room, and a shock sensor on the window if you want protection that triggers before anyone is inside.
We have a dog in Sidcup. Will it set the alarm off?
Not with the right detectors. Pet-tolerant motion detectors are designed to ignore animals up to a set size, and positioning matters as much as the model: we avoid aiming detectors at stairs or furniture a dog can climb. Tell us your pet's size at the survey and the design is built around it.
Can an alarm protect the patio doors and conservatory at the back of a Blackfen house?
Yes. Patio and bi-fold doors get contacts on the opening leaves, and a conservatory gets its own motion detector. Where glass is the main risk, shock sensors can raise the alarm earlier. With so many Bexley homes backing onto gardens or alleys, the rear is often where most of the protection goes.
I commute into London from Welling. Can I check the alarm while I'm at work?
Yes. The app shows whether the system is armed, which doors are open and every event in the log, so you can arm it remotely if someone forgot, or see who disarmed it and when. Alerts reach every household member you add. Professional monitoring is optional if you would rather someone else responded.
How much does a burglar alarm cost in Bexley?
A wireless Ajax alarm starts from £995 including VAT, a wired or hybrid system from £1,995 including VAT, and upgrading an old panel while keeping your existing wired sensors from £495 + VAT. Your exact price depends on the number of doors, windows and rooms, and is fixed in writing after a free survey.
Wired or wireless — which is right for my home?
If your home is finished and lived in, wireless is usually best: no chasing walls, no redecorating, and most homes are done in a day. If you are renovating, a wired system run at first fix before plastering is the better long-term choice, installed at second fix once decorating is done.
Can you take over or upgrade my existing alarm?
Usually, yes — including systems we did not install. Where the existing wiring and detectors prove sound we keep them and replace the panel and keypad, which costs far less than a new system and can add smartphone control.
What guarantee do I get?
A 12-month guarantee on our installation work, alongside the manufacturer's warranty on the equipment we supply. You also receive a completion certificate for your records.
Ready to protect your Bexley property?
Free survey, fixed written price, no obligation.