Wireless alarms
Ajax wireless systems for finished, lived-in homes. No chasing, no redecorating, app control and instant alerts.
Ajax alarm systems →
Chiswick · Isleworth · Feltham · TW & W4
Burglar alarm installation in Hounslow
From Edwardian family houses in Chiswick to interwar semis around Heston, Cranford and Feltham, Hounslow homes vary a great deal, and so should the alarm protecting them. We design each system around the layout, the doors and the way you live, survey it in person, price it in writing, then fit it and set it up on your phone.
- Installing since 2012
- 3,000+ installations
- 12-month guarantee on the installation
- Covering all of Hounslow
Alarms we install in Hounslow
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 Hounslow properties
Hounslow stretches from the riverside streets of Chiswick and Strand-on-the-Green out to the airport-side estates of Bedfont and Feltham. In between sit Isleworth's older cottages, the long semi-detached roads of Hounslow West and Heston, and a growing number of new flats around Brentford. Each type has different entry points and outbuildings, so the detector plan is drawn for the house, not copied from a kit list.
1930s semis in Heston, Cranford and Hounslow West
These roads are full of bay-fronted semis, many with a side return, a rear kitchen extension and a garage or converted outbuilding. A wireless system suits a finished home: contacts on the front, back and side doors, motion detection in each ground-floor room, and a separate detector or contact covering the garage where tools and bikes are kept.
- Door contact on every external door, including the side passage door
- Garage or shed covered as its own zone on the app
- Flat-roofed rear extensions trigger cover for the rooms above
Edwardian and Victorian houses in Chiswick and Isleworth
Larger period homes around Turnham Green, Grove Park and Old Isleworth often have deep gardens, French doors and sash windows at ground level. Shock sensors on the accessible sashes give early warning before anyone is inside, and wireless detectors avoid disturbing original plasterwork, cornicing and picture rails.
- Shock sensors on ground-floor sashes and French doors
- Wireless devices keep period plaster and joinery intact
- Pet-tolerant detectors where a dog has the run of the house
Riverside and town-centre flats in Brentford and Hounslow
Recent developments near Brentford Lock, the High Street and Hounslow town centre are mostly apartments with a single entrance door and a balcony. A compact wireless kit with a door contact and one or two detectors is usually enough, and nothing goes on the outside of the building unless the managing agent agrees.
Extensions and refurbishments across Feltham and Osterley
Where a house is being gutted or extended, a wired system makes sense. Cables are run to every detector and keypad position at first fix, before plastering, and the panel and devices go in at second fix once decorating is finished. That keeps cable runs hidden and lets the alarm plan follow the new layout.
- First-fix cabling planned against the builder's drawings
- Second-fix install and commissioning after decoration
- Wired panels from Texecom, Pyronix or Ajax Fibra
Parts of Chiswick, Isleworth and Brentford fall within conservation areas, and some properties are listed, so check with the council before fixing a bell box or anything else to the front of a listed building.
Guide prices
What a burglar alarm costs in Hounslow
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 Hounslow
We install burglar alarms across the London Borough of Hounslow — postcodes TW3, TW4, TW5, TW7, TW8, TW13, TW14, W4 — and the neighbouring boroughs.
ChiswickBrentfordIsleworthOsterleyHestonCranfordFelthamHanworthAll London boroughs →Ealing →Richmond →Hillingdon →
Free, no obligation
Book a free alarm survey in Hounslow
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 Hounslow: your questions answered
Can my garage or garden office in Hounslow be included in the alarm?
Usually, yes. Many semis in Heston, Hounslow West and Feltham have a garage, workshop or garden room. A wireless detector or door contact can be added as its own zone, so you can arm the outbuilding separately from the house at night. Range depends on distance and building materials, which we check during the survey and, if needed, solve with a signal repeater.
Will an alarm be affected by being close to Heathrow?
Aircraft noise does not affect a modern alarm. Motion detectors respond to body heat and movement rather than sound, and wireless devices use encrypted radio rather than anything that vibration would trouble. Shock sensors are set at a sensitivity that ignores normal traffic and window rattle but responds to a forced entry attempt.
I have an old alarm in my Chiswick house. Do I need a whole new system?
Not always. If the existing wiring and detectors are in good order, we can take the system over by replacing the control panel and keypad, then reuse what still works. That gives you app control and phone alerts without lifting floorboards. Where detectors are faulty or obsolete, we replace only those and explain why in the written quote.
Can I have an alarm in my Brentford flat without the managing agent's permission?
An alarm inside your own flat is generally fine, as wireless devices fix lightly to your walls and doors. Anything on the outside of the building, such as an external siren or bell box, needs the freeholder or managing agent's agreement first. Many flat owners rely on an internal siren and phone alerts instead, which needs no external fixings.
How much does a burglar alarm cost in Hounslow?
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 Hounslow property?
Free survey, fixed written price, no obligation.