Mobile burglar alarm supplier and fitter

Sell and fit intruder alarms at homes and small businesses, working from a van with no shop to pay for.

A technician installing an intruder alarm sensor on a house wall.
Startup cost£2k to £8k
Monthly revenue£1k to £5k
Time needed15+ h/week
First incomeWeeks
  • £2k-8k
  • Part-time
  • Out and about

Estimates for a small start in the UK, not guarantees.

Official data

10,030 UK companies in this field, 26% registered in the last 2 years

SIC 80200 “Security systems service activities”. Source: Companies House, November 2026.

What it is

You visit homes and small businesses, recommend a suitable alarm, supply the equipment and fit it. You also offer servicing, repairs and upgrades to existing systems, usually working from a van and a small stock of kit.

Your first three steps

  1. Get trained in alarm installation and electrical basics, and ask suppliers about trade accounts and training
  2. Look into the standards and inspection bodies used for alarms in your area and what insurers and police expect
  3. Get insurance, set up a simple quote template and offer a few discounted installs to neighbours and local landlords
Who pays

Homeowners, landlords, shops, offices and small firms that want to protect their property or meet an insurer's request.

How it makes money

A fixed price per installation covering equipment and labour, plus extra income from annual servicing, call-outs and add-ons such as cameras or smoke detectors.

Skills that help
  • Electrical and wiring know-how
  • Clear advice for worried customers
  • Tidy, careful fitting work
  • Quoting and basic record keeping
Watch out for
  • Public liability insurance, and professional indemnity cover is worth checking
  • Check whether you need to be registered with an inspectorate body for insurers or police response to accept your systems
  • Alarm wiring may fall under electrical safety rules, so check what qualifications apply
  • Data protection rules if you install cameras, check what you must tell customers
  • Check rules on running a security business, as monitoring or key holding can bring extra requirements

Deep research report · UK

Everything you need to start: mobile burglar alarm supplier and fitter

Researched with live web search for United Kingdom: real startup prices, the licences and rules, what others charge, a break-even example, how to find your first customers and a 30-day launch plan. With sources.

  • Startup costs with real prices
  • Licences, registration and rules
  • Pricing: what others charge
  • Break-even example
  • Finding your first customers
  • 30-day launch plan
  • Risks and how to reduce them
Ready in about 2 minutes · one-off payment, tax included

See a full sample report

Questions people ask

How much does it cost to start a mobile alarm fitting business?

Startup costs are estimated at typically around £2,000 to £8,000, depending on your van, tools, starting stock of alarm kit and insurance. Using a vehicle you already own may keep costs towards the lower end.

How much can a mobile alarm fitter earn?

Monthly revenue is estimated at typically around £1,000 to £5,000, depending on how many installs and servicing jobs you win, your prices and the hours you work. The idea assumes at least about 15 hours a week.

What rules should I check before fitting burglar alarms?

Check public liability insurance and whether professional indemnity is worth having. Check whether you need inspectorate registration for insurers or police response, what electrical qualifications apply to alarm wiring, data protection duties for cameras, and extra requirements if you offer monitoring or key holding.

Other ways to run this business

Similar home services ideas

Photo: geralt on Pixabay

More ideas →