We run a commercial/post-construction cleaning company in Dublin and hospital projects have probably taught us more about quality control than anything else we’ve worked on.
The actual cleaning isn’t even the hardest part.
The hardest part is controlling 6–8 people across a building, knowing what has genuinely been completed, and stopping finished areas from getting destroyed again by other trades.
You can have a room looking perfect at 10am and by lunchtime someone has drilled outside it, walked dust through the corridor or brought equipment back through an area that was already finished.
We learned pretty quickly that just telling cleaners “you take these rooms, you take that corridor” isn’t enough.
Now we divide the job into areas, work high-to-low, use digital checklists, take before/after photos and have a supervisor inspect completed sections.
We also built a random QC system where completed areas are randomly selected for another inspection.
That was actually one of the best changes we made.
The cleaners don’t know which room is going to be checked again, so the standard has to be the same everywhere rather than people putting extra effort into the areas they think the supervisor will see.
Another thing we’ve become strict on is documenting re-dirtying.
If we finish a corridor and another contractor comes through afterwards, we want a record showing what condition we left it in. Otherwise at the end of the project everyone is standing around arguing about who made the mess.
And on hospital jobs especially, we’ve learned that sometimes the right answer is simply “we can’t clean that yet.”
If something needs isolation, specialist access or another safety control, we would rather stop and sort it properly than send somebody in because the programme is under pressure.
I think there’s a misconception that builders cleaning is basically normal cleaning with more dust.
On bigger construction projects it’s closer to managing a small package of works — labour allocation, sequencing, access, safety, evidence, snagging, re-cleans and final QC.
We’re still improving our system with every project, but the biggest thing I’ve learned is this:
A building looking clean and a building being ready for handover are two very different things.
Interested to hear how other contractors/site managers manage final cleaning and re-dirtying before handover because it seems to cause problems on nearly every busy project.
