Preventive Maintenance List for a Building: What Goes In and How to Keep the Work History
A preventive maintenance list is the full set of recurring jobs a building needs — filter changes, pump checks, roof and gutter inspections, emergency lighting tests — each with a frequency, an owner and a record of when it was last done. In most small facility teams that list exists, but it lives in three places: a spreadsheet the manager updated last spring, a binder in the plant room and the memory of the technician who has been there longest. When a tenant asks when the ventilation filters were last replaced, nobody can answer without digging. The facility inspection checklist app article covered the daily round; this one is about the longer cycle — what goes on the list and how to keep the history of every job done against it.
Why a preventive maintenance list falls apart in small teams
The list itself is rarely the problem. Most facility managers can write down what their building needs in one afternoon. The trouble starts when the list has to turn into work, week after week, with the same three or four people who also handle every urgent call.
Jobs have no owner. "Check the sump pumps quarterly" is on the list, but no name is next to it, so it waits until someone remembers.
Planned work and repairs live in different places. Repairs arrive through calls and chats, planned jobs sit in a spreadsheet, and the team only ever sees the repairs. A maintenance work order template brings order to the repairs; the planned list needs the same discipline.
A tick is not a record. "Done" in a spreadsheet cell says nothing about what was found, what was replaced or what the filter looked like.
The history leaves with people. When a technician moves on, so does the knowledge of which valve sticks and which roof drain clogs every October.
What goes into a preventive maintenance list
A useful list is organised by system, not by date. Each line needs four things: what is checked or serviced, how often, who does it, and what proof of the result you expect. The example below is a starting point for an office building or a small business centre, not a standard. Intervals depend on the equipment, so confirm them against the equipment passport, the manufacturer's instructions and your service contractor.
Building services and plant rooms
Ventilation and air conditioning: filter inspection or replacement, drain pans, belts — for example monthly to quarterly.
Heating: visual check of the boiler or heat-exchanger room, pressure readings, leaks — for example weekly during the season.
Pumps and water: sump and booster pumps, valves, visible leaks — for example monthly.
Electrical: visual check of distribution boards, signs of overheating, labelling — for example quarterly, with formal testing left to qualified electricians.
Building envelope and common areas
Roof, gutters and drains — in spring and autumn, and after heavy storms.
Facade, windows and entrance doors — for example quarterly.
Lighting in corridors, stairwells and the car park — for example monthly.
Restrooms and kitchens: taps, flush mechanisms, extractor fans — for example monthly.
Safety-related items
Emergency lighting and exit signs — visual check, for example monthly.
Fire doors close properly and are not blocked — for example weekly.
Fire extinguishers in place and sealed — visual check; servicing stays with a licensed contractor.
Twenty to forty lines is normal for a single building. If the list grows beyond that, split it by system instead of adding more columns.
Why the list needs a work history, not just ticks
A preventive maintenance list answers the question "what should happen". The work history answers "what actually happened" — and that is what you need when a tenant complains, the owner asks or a contractor insists the unit was serviced. A good history entry is short: the date, who did the job, what was found, a photo of the result and any follow-up job that was created.
Many buildings also keep an official maintenance logbook required by local rules or by the owner. An app does not replace that document. What it gives you is a dated, photo-backed record of each job, from which the official logbook can be filled in within minutes instead of being reconstructed from memory.
How a preventive maintenance list works in CosaNostra
In CosaNostra, each group of lines on the list becomes a recurring task on the team calendar. "Replace ventilation filters, floors 1–3" repeats every three months, "Check sump pumps" every month, "Autumn roof and gutter inspection" once a year. Each task has one assignee, a due date and its own checklist.
Group the list by system and frequency: monthly plant room, quarterly ventilation, seasonal roof, and so on.
Create each group as a recurring task — with a double tap on the calendar or by voice: "Every first Monday of the month, check the sump and booster pumps, assign Pedro."
Add a checklist to each task with the items from your list.
On the items that need proof, add a reference photo and a short description of what "done" looks like, and set a threshold for the AI check.
Keep shifts in the same calendar, so you can see who is on site when a task is due and reassign it when someone is on vacation.
The technician gets a notification, works through the checklist on the phone and closes photo items with a picture. AI photo verification compares it with the reference and gives a score; location can be added as an option.
Anything wrong becomes a separate task with its own assignee and date, created by voice in a few seconds.
Edit a recurring task once and every future repetition picks up the change, so the list stays current without rebuilding the schedule.
What the facility manager sees at the end of the week
The calendar shows every planned job with the technician's avatar and checklist progress in day, week or month view. Instead of opening every task, the manager looks only at the items the AI scored below the threshold, leaves a comment and sends the job back if it needs another visit.
Completed tasks keep the checklist, photos, AI scores, comments and time on their date. Six months later, when someone asks when the second-floor filters were last changed, the answer is a few taps away in the calendar — with a photo.
Turn the list into a schedule your team follows
A preventive maintenance list only protects the building when every line has an owner, a date and a record of the result. Start with one system — ventilation or the plant room — move it into recurring tasks with photo checkpoints, and add the rest over a few weeks. See how CosaNostra keeps planned maintenance, repairs and shifts in one calendar for small facility teams.
Frequently asked questions
What should a preventive maintenance list include?
Every recurring job the building needs, grouped by system, with a frequency, one responsible person and the proof you expect, such as a photo of the result. Take the intervals from the equipment passport, the manufacturer's instructions and your service contractor.
How often should the list be reviewed?
Review it at least once a year and whenever equipment is added or replaced or a contractor changes. In CosaNostra, editing a recurring task once updates all of its future repetitions.
Does an app replace the official maintenance logbook?
No. It keeps a dated record of each job with the checklist, photos, AI scores and comments, from which the official logbook is filled in. The official document itself stays as your local rules require.
How do I check that planned maintenance was actually done?
Add a reference photo and a threshold to the key checklist items. The technician closes each item with a photo, AI compares it with the reference and gives a score, and the manager reviews only the items below the threshold.
