Your contractor does a basic clean at handover. That's fine for the purpose of handing over the flat, but it's not deep enough to actually move into comfortably. Post-renovation dust is pervasive, fine, and stubborn. Here's how to actually get the flat clean.
Why post-renovation cleaning is different from regular cleaning
Construction dust from hacking and tiling is ultrafine silica and cement particles. Regular cleaning products and techniques move this dust around more than they remove it. The order of operations matters significantly — clean in the wrong sequence and you're cleaning the same surfaces twice.
The single rule: always clean top to bottom, dry before wet.
Step 1: Ventilate first
Before any cleaning begins, open every window and door. Run fans. Let the flat air out for at least 2 hours. This removes the highest concentration of airborne particles before you start disturbing settled dust.
If there's a strong "new house smell" — the chemical off-gassing from new carpentry, paint, and adhesives — this ventilation phase is even more important. Run your air purifier during this time. The smell typically reduces significantly over 1–3 days of good ventilation. For persistent VOC smell, especially formaldehyde off-gassing from new carpentry, longer ventilation or activated charcoal bags help.
Step 2: Dry dust all surfaces from ceiling to floor
Using a dry microfibre cloth or mop (not a wet one), dust every surface from highest to lowest. The sequence:
- Ceiling — light fixtures, cornices, fan blades if installed
- Wall surfaces including tops of door frames and window frames
- Carpentry tops — wardrobe tops, kitchen cabinet tops
- Countertops
- Inside all cabinets and wardrobes (construction dust penetrates everything)
- Floor — dry sweep or vacuum before any mopping
This dry phase removes the bulk of settled dust. Wet cleaning on top of unremoved dust creates muddy streaks that are much harder to clean than the original dust.
Step 3: Vacuum everything before wet mopping
A vacuum with a HEPA filter is more effective than a broom at this stage — brooms lift fine dust back into the air where it resettles. Vacuum all floor surfaces, inside all cabinets, and along all skirting edges.
Pay special attention to: tile grout lines (dust accumulates here and is hard to dislodge once wet), inside wardrobe track systems, and the joins between wall and floor.
Step 4: Wet clean in sections
Use appropriate cleaning solutions for each surface:
Porcelain and ceramic tiles — diluted tile cleaner or mild pH-neutral cleaner. Avoid acidic cleaners on natural stone tiles (marble, granite) as they etch the surface.
Vinyl flooring — diluted neutral pH cleaner. Never use steam cleaners on vinyl — the heat degrades the wear layer. Never use abrasive scrubbers.
Carpentry and laminate surfaces — barely damp cloth with mild cleaner. Never allow water to pool on laminate edges or surface. Dry immediately after.
Bathroom tiles and fittings — tile cleaner for tiles, warm water and soft cloth for chrome and stainless fittings. For limescale on fittings from construction water, a diluted white vinegar solution (not on chrome fittings — use citric acid-based cleaner instead).
Windows — glass cleaner on the glass, and importantly, clean the window tracks and frames which collect construction debris. A small brush or vacuum crevice tool followed by a damp cloth.
Step 5: The often-skipped areas
Air vents and aircon — flush your aircon filters with water and let dry fully before reinstalling. Construction dust clogs aircon filters rapidly.
Plumbing fixtures — run all taps for 2–3 minutes before use. Construction sediment in the pipes can affect water quality initially.
Electrical points — wipe down with a dry cloth. Check that all covers are properly seated.
The professional cleaning option
If the scale of post-renovation cleaning feels overwhelming, professional post-renovation cleaning services in Singapore typically cost $200–$450 for a 4-room flat, depending on scope and condition. They come with commercial-grade equipment, specialised cleaning solutions, and typically complete the work in 3–4 hours.
For most homeowners, professional post-renovation cleaning is worth the cost — it's a few hundred dollars to start your new home life without spending a weekend cleaning.
The bottom line
Plan for two rounds of cleaning: one immediately after handover (removing bulk dust), and another 3–4 days later (after remaining particles have settled). Your flat won't feel truly clean on day one — that's normal. It will feel genuinely clean by the end of the first week.
