Wireless alarms
Ajax wireless systems for finished, lived-in homes. No chasing, no redecorating, app control and instant alerts.
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Pinner · Stanmore · Rayners Lane · HA
Burglar alarm installation in Harrow
Harrow is Metro-land at heart, with 1930s semis around Rayners Lane, North Harrow and Kenton, village houses in Pinner and on Harrow on the Hill, and larger detached homes in Stanmore. As a business based in the borough, we survey each home in person, price it in writing, then fit the alarm and set it up on your phone.
- Installing since 2012
- 3,000+ installations
- 12-month guarantee on the installation
- Covering all of Harrow
Alarms we install in Harrow
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 Harrow properties
Most Harrow homes were built between the wars, when the Metropolitan line opened up the area, but the borough also has village centres in Pinner and on Harrow on the Hill, detached houses towards Stanmore, and growing numbers of flats in Harrow town centre and Wealdstone. Semis with converted garages, loft dormers and rear extensions are especially common, and each alteration changes the detector plan.
1930s semis in Rayners Lane, North Harrow and Kenton
Bay-fronted semis, often with a side garage converted into a room, a rear extension and a loft dormer. Each alteration adds an entry point: the garage door, wide rear doors and any bedroom window above a flat roof. A wireless system covers all of these, typically in a day, without disturbing decoration.
- Contacts on front, side and rear doors, including converted garages
- Motion detection in every ground-floor room
- First-floor rooms above flat-roofed extensions covered
Period houses in Pinner and Harrow on the Hill
Older cottages and Victorian villas sit within conservation areas around Pinner High Street and Harrow on the Hill. Thick walls and irregular rooms suit wireless detectors, placed carefully so they stay discreet. Listed properties need consent before anything is fixed to them, so device positions are planned with that in mind.
Detached houses in Stanmore, Harrow Weald and Hatch End
Larger plots bring more glazing, double garages, gates and outbuildings such as gyms or garden offices. We extend the wireless system to those buildings, add shock sensors on accessible windows and patio doors, and can split the house into areas so a guest wing or annexe is armed separately.
- Outbuildings linked using wireless range extenders
- Shock sensors on glazing reachable from the garden
- Separate areas for annexes, garages and the main house
Flats and shops in Harrow town centre and Wealdstone
Newer apartment blocks around Station Road and Wealdstone suit a compact wireless kit fitted inside the flat, with no external siren unless the managing agent agrees. Shops along Station Road, St Ann's Road and Northolt Road in South Harrow need staff codes, shutter contacts and phone alerts for the owner.
Harrow Council manages a number of conservation areas, including Harrow on the Hill and Pinner, and the borough's listed buildings need listed building consent before anything is fixed to them.
Guide prices
What a burglar alarm costs in Harrow
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 Harrow
We install burglar alarms across the London Borough of Harrow — postcodes HA1, HA2, HA3, HA5, HA7 — and the neighbouring boroughs.
Harrow on the HillPinnerStanmoreRayners LaneNorth HarrowKentonWealdstoneHatch EndAll London boroughs →Brent →Barnet →Hillingdon →
Free, no obligation
Book a free alarm survey in Harrow
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 Harrow: your questions answered
Our Rayners Lane semi has a garage converted into a bedroom. Does it need its own protection?
Yes. A converted garage often keeps a ground-level window at the front and sometimes a door to the side passage, so it is treated as a ground-floor room: a contact on any door and window, plus a motion detector inside. If someone sleeps there, the contacts can stay armed overnight while the detector is left off.
Are you based in Harrow?
Yes, SatFocus is based in Harrow, in HA2, and covers homes and businesses across the borough, from Pinner and Hatch End to Stanmore, Kenton and Wealdstone. Every job starts with a visit to the property, after which you receive a written price and a clear plan showing where each detector and contact will go.
Can you upgrade an old Texecom or Pyronix alarm in a Pinner house?
Usually. If the existing wiring and detectors are sound, we keep them and fit a new control panel and keypad, which brings app control and phone alerts. Detectors that are faulty or past their best are replaced. It is far less disruptive than starting again, and suits finished homes where nobody wants walls opened up.
What can we fit in a flat in an older converted building on Harrow on the Hill?
A compact wireless system inside the flat is usually the answer. It needs no cable runs through period walls and nothing on the exterior. Because the Hill is a conservation area and some buildings are listed, fixing anything outside would need the freeholder's agreement and possibly council consent, so an indoor siren with phone alerts keeps things simple.
How much does a burglar alarm cost in Harrow?
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 Harrow property?
Free survey, fixed written price, no obligation.