Preparing Your Security Business for Sale

Does the profit leave enough cash to keep the business healthy?

Show the margin on monitoring, maintenance, installation and guarding separately, along with collections and the cash needed to run payroll on guarding contracts. A busy year of installations needs context.

Cash conversion shows whether the reported profit reaches the bank, including how payroll on guarding contracts moves the balance through the month.

What income can I reasonably expect after the handover?

Monitoring and maintenance agreements, and term guarding contracts, give evidence of future work. Show renewal terms, customers who leave and the split between contracted income, repeat callouts and one-off installations.

Written contracts with renewal dates and prices beat handshake arrangements, and a buyer will usually ask for a schedule showing each client, monthly value, start and renewal dates, notice period and whether the contract can pass to a new owner.

How much would losing the biggest account hurt?

Show any dependence on one large client or managing agent, the contract behind that work and who holds the day-to-day relationship.

A concentrated customer list need not stop a sale, but a buyer will price the risk, especially where the relationship sits with you personally rather than with someone in your team. Written terms with the largest customers reduce that risk.

Which jobs or decisions would stop if you stepped away?

Look at quoting, technical sign-off and key accounts. Check reliance on individual engineers and licensed officers, and what an ownership change means for SIA approved contractor status and NSI or SSAIB approval. Include control of the website, domains and business profiles: work through the online presence check and see the help Martin offers.

Who can run the team without asking the owner?

An operations manager or senior engineer needs clear responsibilities and room to make decisions. A buyer will want to understand who stays, their incentives and how they plan ahead.

Moving client relationships, quoting and day-to-day decisions to an operations manager or senior engineer is one of the most fixable risks, and it takes time to show, which is why it starts early.

Can the business take on more jobs without standards slipping?

Show how you schedule engineers and officers, plan rotas, record jobs and check quality. Written routines and usable systems make the work less dependent on memory.

A buyer will look at how jobs are booked and recorded, how rotas are covered, whether the vans and equipment are in serviceable condition, and whether the engineers, officers and systems could take on more work.

What keeps customers here when competitors quote?

Evidence might include specialist capability, reliable response and a reputation shared across the team. Show why customers accept your pricing and whether those strengths stay after a sale. Your website and recent reviews should show the services you provide today. Use the online presence check or Buyer-ready presence to put that evidence in order.

Can I follow the accounts and trust the plan?

Timely management accounts, sensible forecasts and clear checks on costs let a buyer follow the business. Someone should own the budget and investigate differences from it. Keep supporting records in a controlled place, ready for agreed buyer access rather than sending everything at the first enquiry.

Reporting that arrives soon after each month end, and that someone other than the owner can produce, is part of what a buyer is checking.

Where could the next owner grow from here?

Separate enquiries from agreed work. Explain which customers could take monitoring or maintenance after an installation, or additional services, and whether the engineers and capacity are there to deliver.

A buyer also looks at whether recent installations are leading to monitoring or maintenance agreements, because that is income a new owner can build on. Show the customers where this has already happened, not only the ones where it could.

Accreditation is one of the first things a buyer checks, because it underpins tender eligibility, insurance, and self-certification. A business holding current approvals is a lower-risk, more attractive acquisition than an unaccredited operator, who tends to attract a discount to cover re-certification cost and lost contract eligibility.

What to do

• Confirm your SIA Approved Contractor Scheme (ACS) status is current, with no outstanding conditions, for every licensable service you supply
• For electronic security work, verify your NSI Gold (or NSI Silver) or SSAIB certification is in date and that your next audit will not fall awkwardly across the likely sale timeline
• Make sure you are operating to the relevant EN standards, including EN 50131 for intruder and hold-up alarms, EN 50132 for CCTV and video surveillance, EN 50136 for alarm transmission, and EN 50518 if you run a monitoring or alarm receiving centre
• If you hold ISO 9001 or other scheme memberships, confirm they are current and that the supporting documentation is accessible

Recurring monitoring revenue (RMR) is the single most important value driver in electronic security. A book of monitored or ARC-connected accounts represents contracted, predictable income that arrives without new selling, and it is what separates a premium business from an operation valued at a lower multiple of its yearly profit. Buyers will want to understand it in detail.

What to do

• Build a schedule of every monitoring, maintenance, and service contract: client, monthly value, start and renewal dates, notice periods, and whether the contract can be transferred to a new owner
• Separate genuinely recurring income (monitoring, planned maintenance, managed services) from one-off install and project revenue in your reporting
• Track attrition: how many accounts you lose each year and why. Low, stable attrition supports a stronger valuation
• Note client concentration. A diverse base across retail, commercial, and public sector is lower risk than a book that leans on one or two large accounts

For manned guarding in particular, value sits in stable, transferable contracts and a clear staffing position. Buyers pay a premium for clean, long-term commercial contracts and clarity on the staffing position. In a sale of the company's shares the employer does not change; in a sale of its assets, or when a contract moves provider, TUPE moves employees to the new employer on their existing terms. Uncertainty here is one of the most common reasons a deal slows down.

What to do

• Schedule all commercial contracts with their value, term, renewal dates, and any clauses that let the client end or move the contract when the owner changes
• Identify which contracts renew or come up for re-tender during the likely sale period, and address any that are overdue for a formal renewal
• Map your TUPE position: which staff transfer with which contracts, their length of service, and any continuity-of-employment considerations
• Resolve any contracts running on expired terms or informal arrangements, as these create avoidable buyer questions

Your licensed, vetted, and retained workforce is a core part of what a buyer is acquiring, and it directly reduces owner dependency, how far the business relies on you. Complete records demonstrate the depth and compliance of your team and shorten due diligence.

What to do

• Prepare a register of every operative's SIA licence, including type (door supervision, security guarding, CCTV public space surveillance, close protection, key holding) and expiry date
• Document BS 7858 security screening and vetting for all staff working in secure environments, with renewal dates clearly recorded
• Record specialist competencies and training: ARC operator training, systems engineering certifications, first aid, and any sector-specific qualifications
• Capture supervisory structure and rota cover so a buyer can see the business runs without daily input from you

Technical compliance is a real due-diligence point in electronic security. With the analogue PSTN telephone network due to close at the end of January 2027, legacy alarms still signalling over copper lines need upgrading, so buyers want to know your installed base is ready.

What to do

• Audit your monitored estate and identify any accounts still signalling over PSTN copper lines rather than IP or dual-path signalling
• Plan and, where possible, begin the migration of those accounts to IP or cellular signalling ahead of the switch-off, as this both protects continuity and creates additional service revenue
• Keep maintenance and service records, commissioning certificates, and as-fitted documentation organised and accessible for your installed systems
• Confirm your equipment and installation practice meet the current EN and PD 6662 standards a buyer's technical adviser will expect

Buyers will scrutinise your accounts and assess how much the business depends on you personally. Margins in guarding are thin, with wages forming the bulk of cost, so clear financials and a business that runs without you both reduce negotiation friction and support a stronger outcome.

What to do

• Separate personal expenses from business expenses. If you run personal costs through the company, buyers will discount your profitability
• Prepare a schedule of add-backs: owner salary, non-recurring expenses, and one-off costs, so your true earnings are visible
• Show the split clearly between recurring monitoring and maintenance revenue and one-off install or project revenue
• Strengthen your second line of management so client relationships, rostering, and operations do not rest solely with you
• Create an asset and equipment inventory with condition notes, lease terms, and replacement timelines, and address any deferred capital expenditure