FHN 
Before — the work has just finished
Dust sheets on the floor, a paint tin, cutting dust, tools on the window sills. This is how the trades leave a property.
Contractors · Developers · Architects
Post-construction cleaning in Belgium
Full restoration clean after building work: deep dust removal, marks, glazing, construction residue. The building is handed over ready for acceptance.
In the field
Before / after, on a real site
An attic bedroom, photographed at two moments: as the trades moved out, then after our visit. Same room, same angle, no retouching.
After — the same room, ready to live in
Floor cleaned, sills cleared, frames and glazing spotless, no residue. Between these two photos there was no building work and no retouching: only a visit from our teams.
Other handovers
Living room at the end of the works
Bags of tile adhesive, tile offcuts, protective coverings: the handover cannot take place in this state.
Living room ready for handover
Floors washed, plaster and silicone marks removed. The home can be handed over to its owner.
New kitchen, ready for first use
Worktops, cabinet fronts, appliances and cupboard interiors: packaging, labels and dust.
Our teams on site
Garages, cellars and plant rooms are part of the handover. Our equipment travels with us.
Overview
Who it’s for, and what you get
Post-construction cleaning is the final step before a building is handed over or formally accepted. It shapes the client’s final impression, the clearing of snagging items and, often, the release of the final contract payment. FHN Clean provides the full restoration clean after building work for contractors, developers, architects and private individuals in Mons, across Hainaut, in Wallonia and in Brussels. We work in new flats as well as on office floors, in detached houses, shops and service-sector building sites.
Included services
- ✓ Full dusting: floors, walls, ceilings, skirting boards, frames
- ✓ Interior and exterior glazing: sealant marks, labels, paint
- ✓ Bathrooms and WCs: limescale removal, joints, taps, mirrors
- ✓ Kitchen: appliances (outside), worktops, extractor hoods, cupboard interiors
- ✓ Floors: vacuuming + suitable washing (concrete, tiles, parquet, vinyl), mark removal
- ✓ Fine details: handles, switches, sockets, hinges
- ✓ Removal of the last building-site residues (with the client’s agreement)
- ✓ Preparation for handover: airing, visual check, final pass
Quote within 24h
Save time: send us the floor area, the frequency you want and photos.
The quote form lets you upload images (current condition / access constraints), which speeds up the handling of your request.
📞 +32 65 22 92 44 · contact form
Typical clients
- • General contractors and trade contractors
- • Property developers (residential, commercial)
- • Architects delivering turnkey projects
- • Public-sector project owners
- • Retailers and restaurateurs fitting out premises
- • Private individuals with a major renovation or new build
The FHN Clean method
Analysis, planning, on-site work, quality follow-up
A structured method that delivers consistent, documented and repeatable results from one visit to the next.
1
Site visit
Visual assessment, identifying the tough spots (paint, sealant, residues), handover schedule.
2
Work plan
Split into zones, logical order (top → bottom, dry → wet), right-sized team.
3
First pass
Deep dusting, glazing, bathrooms, removal of heavy marks.
4
Second pass
Fine details, finishing, checking the difficult areas (joints, frames).
5
Quality control
Walk-round of the site with a checklist, before/after photos if needed.
6
Handover
Building handed over ready for acceptance, with no surprises for the project owner.
Frequency
One-off or recurring, depending on your needs
One-off job
This is the standard format: a single job with a set start date and handover on a fixed date.
Multi-phase
For large sites: an intermediate clean (once the structural work is finished), then a final clean before handover.
Developer contract
For developers with regular flat handovers: negotiated rate, dedicated team.
Areas covered
Where we work
FHN Clean provides post-construction cleaning in Mons, throughout Hainaut, in Charleroi, La Louvière, Tournai and in Brussels. For sites in the neighbouring Flemish region, contact us and we will look at each case individually.
FAQ
Frequently asked questions
Other services
Round out your specification
Communal areas
Entrance halls, stairwells, car parks, contracts for property managers (syndics).
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A real contract
126 student units, 3,145.72 m², handed over in phases
Rue André Masquelier, Mons. A new student residence of 126 units, handed over in phases between February and June 2026. We carried out the handover clean — the clean that turns a unit finished by the trades into one that can be handed to an occupant. 193.9 hours logged, over 49 visits.
What a “handover clean” actually means
It isn’t cleaning, and that is where most of the quotes we are asked to redo go wrong. A new home does not contain dirt: it contains construction residues, and each one calls for a different technique.
- Cement haze on tiles — water won’t shift it. It takes an acid cleaner, a dwell time and thorough rinsing, or the grout will turn dull.
- Labels and protective films on window frames, glass, sanitaryware and switch plates. Across 126 units, it is the item that takes the most time, and nobody prices it.
- Paint and filler splashes on floors, thresholds and glazing — scraped off with a blade, never with solvent on a PVC frame.
- Cutting dust, which gets everywhere: in shutter guide rails, ventilation grilles, skirting grooves, the tops of doors.
- Excess silicone and sealant marks around bathroom fittings.
Why two passes, not one
That is the lesson this contract taught us, and we now build it into every proposal. A new unit cleaned only once gets dirty again before the keys are handed over: there is always one trade still to come back, a paint touch-up, a door to adjust. The first clean then serves to have the completion of the works formally recorded; the second, to hand over.
Hence our rates, which are public because they are ours: €3.50 per m² for the first pass, €3.00 for the second. The second costs less because it covers a unit that has already been treated — not because we take less care over it.
The detail that sets the schedule: phasing
In a residence this size, the units are never all finished at the same time. Clean too early and you clean twice at your own expense; too late and you hold up the handing over of keys. So we work in phases, timed to actual progress, and it is the site manager who gives the go-ahead for each phase, not the calendar.
Between February and June 2026, that came to 49 separate visits. Each one is logged, time-stamped and geolocated in our system: the client can see who came, where, and for how long.
Site welfare cabins — what almost nobody offers
On the same site we also looked after the site welfare cabins: offices, canteen, changing rooms, toilets. Every week, on Tuesdays — never on site-meeting day, so as not to get under the feet of the site management. €85.00 excl. VAT per visit, fixed price.
It is a small job, and it is the one we are asked for most, because nobody wants to do it: too small for the big firms and too demanding for the small ones.
High-level windows: the cherry picker is charged for, or it doesn’t get done
A new residence has glazing that no pole can reach. So we price the 17-metre cherry picker as an option, per day, charged only if it is used. A post-construction cleaning quote that says nothing about high-level glazing is a quote that will blow up along the way — or a site that will be handed over with dirty windows.
Subcontracting: what a project owner should check
On a construction site, the handover clean is almost always subcontracted. We are asked for two things every time, and you should demand them from any provider:
- The Checkin@work declaration (ONSS) — every person present on site is declared the same day. We do this for every one of our visits.
- Staff registered under Joint Committee 121, covered by public liability insurance, and equipped.
This isn’t mere paperwork: an undeclared worker on your site makes you jointly and severally liable, not just us.
What to allow for, in rough figures
For a new home of typical size, allow half a day for one person on the first pass, and noticeably less on the second. What drives the time is not floor area: it is the number of wet rooms (a new bathroom takes twice as long per m² as a bedroom) and the amount of glazing.
We price after a site visit, from plans if the site is not accessible, and we commit to the condition at handover — not to a number of hours.
The guide
Getting post-construction cleaning right
A site is handed over once. If the cleaning is badly placed in the schedule, it has to be redone — and it is always the cleaning that gets the blame, never the order of the works. Here is how we avoid that.
A site is cleaned in two passes, not one
That is the rule that makes the difference between a handover that goes through and one that stalls.
1. The rough clean
As soon as the messy trades have finished: removal of fine debris, lifting plaster, filler and paint splashes, taking off protective coverings and joinery labels, first pass on the floors.
2. The finishing clean, just before handover
As close to handover as possible: full dusting, windows and frames, bathrooms, touch points, final floor clean. After this pass, nobody works in the premises any more.
Why two: construction dust is fine and stays suspended in the air. Cleaned too early, it settles again within forty-eight hours and the result seems undone. A single pass placed too early therefore costs twice: the first time for nothing, the second in a rush.
What takes time, and is always underestimated
- Labels and protective films. On new frames, bathroom fittings, appliances. If they come off late, the adhesive has baked in the sun and has to be dissolved.
- Paint splashes on the floor. They are scraped off one by one. A floor protected during the works saves hours; one that wasn’t can double the job.
- Windows. Cement, silicone, fingerprints, dust: a building-site window isn’t a dirty window, it’s a window that needs stripping. Always count them.
- High areas. Ducting, light fittings, door tops, ventilation grilles. Invisible on the site visit, very visible at handover, when someone runs a finger along them.
What makes the price per square metre vary
The price of post-construction cleaning is often quoted per m², and that is misleading: two sites of the same size can differ by a factor of three. What really matters:
| Factor | What difference it makes |
|---|---|
| New build or renovation | A renovation in occupied premises creates more mess and is worked area by area |
| Density of bathrooms and kitchens | These are the slowest rooms; a bare floor plate goes quickly |
| Glazed area | A cost item in its own right, often forgotten in comparisons |
| Cleanliness on arrival | Rubble left on site means clearing before cleaning |
| Access and floors | Without a lift, equipment and water go up by hand |
We price after a site visit. On large developments — student housing, buildings handed over in batches — we work per unit delivered, with a first-pass rate and a follow-up rate, so the project owner can track progress instead of waiting for one overall invoice.
The handover
We always ask for an inspection walk-round with you before the keys are handed over. Anything noted is put right there and then, not on the next visit. It is quicker for everyone than a snagging list circulating by email for three weeks.
Take the first step
A quote for post-construction cleaning?
Describe what you need in a few lines. We’ll reply within 24 working hours with a clear proposal.