Resale HDB Renovation: Fix These Before Finishes
You have bought a resale HDB flat and want fresh walls and floors. Before you choose any finish, find out what lies under the old ones: flaking paint, hollow tiles, damp patches and uneven slabs decide what you can install and what it costs. This guide lists the checks to make before you order, explains the overlay-or-hack decision for old floors, and shows what each fix means for wallpaper, vinyl and carpet.
Quick Takeaways
- Inspect walls, floors and ceilings before ordering any finish
- Find the source of damp before covering it, or it will return
- Sound, level tiles can often take a vinyl overlay; hollow or cracked ones cannot
- Overlays raise the floor, so check door clearance and thresholds first
Planning finishes for a resale flat? Visit the Monli showroom at Tampines or WhatsApp +65 8112 4866 for a free recommendation.
Resale HDB Renovation: Wall Checks
Walk each room with the lights off and a torch held low along the wall. Raking light shows ripples and patches that daylight hides. Then work through the table below.
| What you see | What it may mean | Before finishing |
|---|---|---|
| Flaking or powdery paint | Loose paint layers | Scrape, seal and prime; wallpaper will not hold on a loose base |
| Old wallpaper, lifting edges | Failed adhesive, old residue | Remove fully and clean residue |
| Hairline cracks near corners or windows | Minor movement | Patch and prime; ask a contractor about wide or recurring cracks |
| Brown stains, white powder, musty smell | Moisture from a leak or condensation | Find and fix the source first |
| Ripples under raking light | Uneven surface | Skim coat, or choose a more forgiving material |
Our guides on wallpaper removal and wall preparation explain each step in detail.
Resale HDB Floors: Overlay or Hack?
Tap each floor tile with a hard object, such as a coin or screwdriver handle. A hollow, drum-like sound can mean the tile has lifted from the screed. Note cracked tiles, big level differences and any tiles that move underfoot.
| Overlay on existing tiles | Hack and re-lay | |
|---|---|---|
| Best when | Tiles are sound, flat and dry | Tiles are hollow, cracked or uneven |
| Speed and mess | Faster, less dust and noise | Slower, noisy, dusty |
| Floor height | Raises the floor slightly | Can keep original height |
| Rules and extras | Check door clearance and thresholds | Check HDB renovation guidelines; wet areas need waterproofing |
Hacking in HDB flats follows renovation rules, and some works need a permit and a registered contractor. Confirm with your contractor and with HDB's current guidelines before deciding. Read more in our guides to installing flooring over existing tiles, floor levelling and resale HDB flooring.
Want to compare overlay-friendly floors? Visit the Monli showroom at Tampines to check thickness and finish in person.
Damp: Find the Source First
Damp patches should never be covered over. Wallpaper, paint and flooring will not cure a moisture source, and trapped moisture can cause bubbling, staining and mould. Look for leaks from pipes, windows, the ceiling above, or condensation on cooler walls.
If a stain returns after cleaning, ask a contractor to trace it. Our guides on condensation behind wallpaper and water-damaged wallpaper show what moisture damage looks like once finishes are on.
Singapore Context: Older Flats and Humidity
Older resale flats often have worn paint, past repairs and uneven plaster. Singapore's 70–90% humidity speeds up peeling in poorly ventilated rooms, particularly bathrooms and kitchens, so improve ventilation as part of the renovation.
Also check electrical points, ceiling stains and window seals before finishing. Moving a socket after wallpaper is up is far harder than moving it before. Plan walls, floors and electrical together, as our order of works guide explains.
Cost Guide: Finishes After Preparation (S$)
| Tier | Wallpaper | Flooring |
|---|---|---|
| Budget | From S$8/roll | Vinyl sheet from S$3/sqm |
| Mid-range | S$18–35/roll | Standard LVT S$6–10/sqm |
| Premium | From S$28/sqm | Designer LVT S$12–18/sqm |
| Installation | From S$15/roll | S$3–6/sqm |
Prices are indicative and exclude preparation, levelling, hacking and waterproofing, which are quoted after a site visit. Contact Monli for a project-specific quote.
FAQs
Can I wallpaper over old paint in a resale HDB flat?
Yes, if the paint is sound, clean and well bonded. Flaking or powdery paint must be scraped and sealed first, because wallpaper will only be as strong as the surface it sticks to.
Can I lay vinyl flooring over existing tiles?
Often yes, if the tiles are sound, flat and dry. Hollow or cracked tiles should be fixed or removed first. An overlay raises the floor, so check door clearance before ordering.
How much do finishes cost for a resale HDB flat?
Vinyl sheet starts from about S$3/sqm and standard LVT from S$6–10/sqm, with installation from S$3–6/sqm. Wallpaper starts from about S$8/roll, with installation from S$15/roll. Preparation is quoted after a site visit.
Do I need an HDB permit to hack floor tiles?
Some renovation works need a permit and a registered contractor, and rules change over time. Check HDB's current renovation guidelines and ask your contractor to confirm what applies to your flat.
What is the biggest mistake with resale flats?
Covering damp or flaking walls with new finishes. The problem returns and often damages the new material, so fix the source and the surface first.
How do I tell if a floor tile is hollow?
Tap it with a hard object. A hollow, drum-like sound compared with nearby tiles suggests it has lifted. Mark these tiles and ask your contractor whether to repair them or hack the floor.
Related Reading
- Interior Knowledge Singapore: Complete Guide
- Renovation Order of Works for Finishes Singapore
- HDB Wallpaper Singapore: Complete Guide
- Resale HDB Flooring Singapore: Renovation Guide
Visit the Monli showroom at Tampines to plan finishes for your resale flat.
WhatsApp +65 8112 4866 for advice.
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