Reactive versus planned, with the numbers

Reactive maintenance has one great advantage: it spends nothing until something breaks. That is exactly why it is so often chosen, and why it so often costs more in the end. A building run on reaction pays for failures at the worst possible time, at emergency rates, with collateral damage, while a building run on a plan spends steadily and avoids most of the failures altogether. The argument between the two approaches is not really about money in the abstract; it is about when the money lands and how much of it you control.

What reactive really costs

The headline appeal of reactive maintenance is the empty budget line until a fault appears. The hidden cost is everything that fault drags with it. An emergency call-out is dearer than a scheduled visit. A component that fails in service often damages the things around it. A lift that breaks down strands residents and may breach the duty to keep it examined. A leak found late has soaked into structure that a planned inspection would have caught dry.

There is a compliance cost too, and it is the one that bites hardest. Several maintenance items are not discretionary. Lifting equipment that carries people needs a thorough examination every six months under LOLER, and load-only lifting every twelve months. An electrical installation in a rented home needs an inspection at least every five years under the landlord rules, with the report given to tenants within 28 days. A reactive approach that waits for failure has no answer when a regulator asks for the examination that was due and never booked.

What planned maintenance buys

Planned maintenance spends earlier and, usually, less. By servicing equipment before it fails, you avoid the emergency premium and the collateral damage, and you keep the statutory examinations on their cycle so the compliance question never arises. The spend becomes predictable, which means it can be budgeted, and budgeted work is work you can defend.

The contrast is clearest when set side by side.

The numbers in any individual building will vary, and we make no claim about a universal saving, because the honest position is that it depends on the building. What does not vary is the shape of the trade-off: reactive maintenance moves cost into the future and into the uncontrolled, while planned maintenance brings it forward into the predictable.

The work you can predict

A great deal of building maintenance is genuinely foreseeable. The lift examination is due on a known cycle. The fire alarm needs its service. The gutters need clearing before winter. The electrical inspection has a five-year horizon you can see coming for years. None of this should ever be a surprise, and the buildings that run on reaction are usually the ones that have simply never written the predictable work down.

Writing it down is most of the battle. Once the foreseeable tasks sit on a calendar with their due dates, the plan largely manages itself, and the only genuinely reactive work left is the unforeseeable, the storm damage, the vandalism, the component that fails before its time. We look at how to put a figure on the foreseeable in budgeting for the compliance work you can predict.

Proving it was done

A planned approach has a second benefit that reactive work can never match: it produces evidence as a by-product. Each scheduled task, once done, leaves a dated record, and over a year those records become a continuous account of how the building has been looked after. That account is what an insurer, an incoming owner or a regulator wants to see, and it is exactly what a reactive building cannot produce, because its history is a series of crises rather than a routine.

• Schedule the foreseeable work against its due dates, statutory items first.
• Let each completed task leave a dated record automatically.
• Keep the reactive budget for genuine surprises, not for the predictable.
• Treat the maintenance log as evidence, not just a to-do list.

A maintenance log kept this way earns its place twice over: once by keeping the building running, and again by proving it. We cover that in a maintenance log that earns its keep.

Choosing the cheaper option honestly

The reason planned maintenance loses arguments is that its cost is visible and reactive maintenance's cost is hidden until it arrives. Made visible, the comparison usually favours the plan, because the plan controls when the money is spent and avoids the failures that reaction pays for in full. The building that looks cheapest to run on reaction is often the one quietly accumulating the dearest bill.

SAMRISK keeps the predictable work on a compliance calendar that chains its own deadlines, so the foreseeable tasks are scheduled and each one leaves a dated record in the building's maintenance history. This is general guidance rather than legal advice, and any building's specific obligations should be confirmed against the current rules.