Anyone who's tried to get fit after a decade of takeaways and no exercise knows the hard part isn't the first run. It's undoing ten years. The joints complain, the progress is slow, and every week you're paying for choices you made years ago.

Buildings work exactly the same way. Skip a filter change here and a manufacturer's service there, and nothing happens straight away. The lights stay on and the lifts keep running. But the wear compounds quietly. By the time something fails, deferred maintenance can cost three to seven times what the routine work would have. Some of your warranties may have lapsed along the way too.

01Preventive or predictive? Timing matters more.

A lot of maintenance writing focuses on which strategy to choose. Preventive maintenance means servicing assets on a fixed schedule: inspections, cleaning, filter changes. Predictive maintenance uses sensors and data to service assets only when they show signs of failing.

Both have their place. But the debate skips a more basic question: when does the plan actually start?

Predictive maintenance is like a smartwatch. It's useful, and it tells you when something's off. But it doesn't replace eating well every day. A building with sensors on every chiller but no one servicing the fire doors, cleaning the gutters or keeping up the manufacturer-required checks still ends up with the ten-year problem. The best strategy on paper is only as good as the day it starts being followed.

02Where it goes wrong: the handover

In most buildings, the maintenance plan exists from day one. It's in the O&M manuals: hundreds of pages of equipment schedules, service intervals and manufacturers' literature, handed over at practical completion.

Then it goes on a shelf, or into a shared drive. It's the building version of buying a gym membership and never going.

Nobody means for this to happen. Facilities teams are busy, the manuals are dense, and turning them into a working schedule takes weeks of manual effort. So it gets put off. Meanwhile the building carries on as normal, until it doesn't.

Illustrative

Maintenance debt compounds

Handover Year 3 Year 5 Year 8 Year 10 Deferred Maintained from day one
The shape, not the numbers: routine care costs a little every year, and deferred care costs nothing until it costs a lot.

03Starting the plan on day one

The easiest way to keep a building healthy is to start on handover day, while the manuals are fresh, the warranties are live and every asset is new.

That's what Prospero is built for. Upload the O&M manuals and Prospero reads them. It pulls out every asset, every service interval and every warranty obligation, and turns them into a live asset register and maintenance schedule. Every task links back to the page it came from, so nothing relies on guesswork. Your team gets alerts before work is due and logs evidence as they go.

Warranties

Your immune system

Many manufacturer warranties depend on servicing being done, and being able to prove it. Prospero tracks those obligations and alerts you before they lapse, so a missed service doesn't quietly void a warranty. Before committing to reactive works, your team can check whether the asset is still covered. And when the warranty ends, the maintenance stays on the schedule, because the asset still needs it.

Compliance

Your annual check-up

BWoF specified systems are flagged clearly and kept separate from general maintenance. Evidence is captured as the work happens, so the annual sign-off is a routine step rather than a scramble through inboxes.

Lifecycle

Living longer

Assets that are serviced properly last longer. That means capital replacements come later, there are fewer surprises, and the building keeps performing well into its life.

04Already ten years in? Start today.

Most buildings don't get a fresh start. They've changed hands, contractors have come and gone, and the maintenance records are split across the council, three service providers and a filing cabinet nobody has opened since 2016.

That's fine. A good physio doesn't need your whole medical history before building you a plan. They work with what you've got: an old scan, your last check-up, what your trainer noticed. They start from where you are now.

Prospero works the same way. You don't need a perfect set of O&M manuals to get started. It can take in:

  • 01Council property filesConsents, code compliance certificates, compliance schedules and past BWoF records.
  • 02Product data sheetsPDF manufacturer literature with the maintenance and warranty requirements for each asset.
  • 03Contractor asset registersThe spreadsheets your HVAC, fire and lift contractors already keep.
  • 04Old O&M manuals and plansLong-term maintenance plans, condition reports and whatever else is on file, however incomplete.

Prospero brings these into one register, with each task linked back to its source. What was scattered across ten years of paperwork becomes a single baseline your team can work from, and a live schedule from today on.

The best time to start was handover. The second best time is today, and you don't need a perfect paper trail to do it.

You can't undo ten years. But you can make sure year eleven doesn't add to the bill.

05The takeaway

Choosing preventive or predictive maintenance matters less than whether the plan is being followed. For new buildings, start at handover, when it's cheapest and easiest. For existing buildings, start now with the records you have.

Either way, the goal is a building that lasts longer, keeps its warranties and passes its compliance checks without a last-minute rush.