Post-renovation cleaning:
the complete guide.

01What post-renovation cleaning actually is

It is the clean a property needs between the contractors finishing and anyone moving in, and it exists as a separate trade because renovation leaves behind a different class of material from daily life. Household soil sits on surfaces. Construction residue bonds to them.

In practice the job is four overlapping problems: mineral residue on hard surfaces, cured materials such as paint and silicone, adhesives, and an enormous volume of very fine dust that has had days to settle into every opening in the property. Each needs a different response, and the only one that a general clean handles well is the dust — which is why a property can be cleaned and still look wrong.

02The residues, one by one

Cement film and grout haze. A thin mineral layer left across tile faces after grouting or rendering. It reads as a dull grey cast in daylight and vanishes while the floor is wet, which is exactly why it survives repeated mopping. It requires an acidic treatment matched to the tile, agitated and then neutralised.

Paint. Spots on glass, frames, ironmongery and sanitaryware. Removed mechanically rather than with solvent, because the solvents that shift cured paint attack grout and seals.

Silicone and adhesive. Smeared where sealant was tooled, or left under vinyl and skirting edges. Slow, careful, entirely manual work.

Fine dust. The one everybody underestimates. It behaves like a liquid and ends up in window tracks, curtain channels, on top of door frames and cabinet carcasses, inside light fittings and around switch plates.

03Why the dust is a health question, not only a tidiness one

Construction dust is fine enough to stay airborne for a long time and to be redistributed every time a door opens or an air conditioner runs. Guidance on indoor air quality from the US Environmental Protection Agency is consistent on the general point: particulates indoors matter, and removing the source matters more than filtering afterwards.

The practical consequence for a renovated property is that dust in the unreachable places is not a cosmetic problem to be left. It is the reservoir that keeps re-dusting the rooms you did clean, for weeks.

04The order of work, and why it is repeated

Anything disturbed high in a room lands on everything below it, so the sequence is fixed and it only runs one way: debris and packaging out, then high-level work — fittings, cabinet tops, ledges, rails, door frames — then walls, joinery and glass, then sanitaryware, and floors last.

Then it is repeated. Fine dust keeps falling for a day or two after the heavy work stops, so a property finished in one visit will look dusty again by the next morning. The repeat pass is not padding; it is the difference between a property that is clean and one that was cleaned.

05What good looks like: the places people forget

The honest test of a post-renovation clean is not the middle of the floor. It is the tops of the kitchen cabinets, the inside of the light fittings, the window tracks, the tops of the door frames, behind and under the sanitaryware, and the edges of the skirting.

That is not a stylistic preference. Those are the places construction dust collects and the places a rushed job skips, so they are the reliable indicator. It is also what customers themselves single out: one review of this company's work notes that even the tops of the cabinets, light fixtures, and corners is clean.

06How long it takes

Three to five days from handover is realistic for a typical unit, and that is the promise this company works to. The range is not hedging: a compact property that was well protected during the works sits at the short end, and a larger one where tiling and painting overlapped sits at the long end.

What stretches it is floors that need restoration rather than cleaning, glass that turns out to need height access, and a contractor still working while the cleaning crew is on site. The last is the most common cause of a slipped date anywhere in this trade.

07What moves the price

Condition and access, far ahead of floor area. Two identical units can differ by half again if one has cement skim across every tile and the other does not. The specific drivers are the state of the floors, whether the glass needs equipment, how much residue there is rather than how much dust, and whether anything has to be cleared before cleaning can begin.

This is why any contractor who quotes a firm price from a floor area alone is either padding to cover the worst case or about to revise the number. Photographs of the floors and the worst of the bathrooms will get you an accurate range.

08Five questions to ask before you book

Does the price include a second pass after the dust settles? If not, the quote is for a different job.

How will you remove cement film, and have you tested my tile? The answer should mention matching the treatment to the surface, and a test area.

Who checks the work, and when? A check by someone other than the person who cleaned is worth more than a promise that the owner inspects everything.

Is the glass at height included? Facades and high panes are a separate activity with separate equipment and should be priced explicitly.

What happens if something is missed? The only good answer is that they come back.

09When you do not need a specialist

If no building work has been done — no tiling, painting, plastering, carpentry, no new kitchen or bathroom — then this is not the job you need, however dirty the property is. A thorough deep clean will do it, and it will cost considerably less.

There is a fuller side-by-side of the two on post-renovation cleaning vs regular deep cleaning, including why a deep clean booked for a renovated unit usually has to be done twice.

The same applies to a very small area of work: one re-tiled bathroom in an otherwise untouched home is usually within reach of a good regular cleaner plus a little patience with the grout haze. It is worth saying that plainly, because the opposite advice is the easiest sale in this trade.