Renovating an HDB flat in Singapore can feel overwhelming — especially if it’s your first time. Many homeowners jump in with excitement, but soon discover that the renovation process involves far more steps than they expected. From hacking walls to electrical works and carpentry installation, there’s a lot happening behind the scenes.
The good news? With the right contractor and a clear understanding of the timeline, you can better prepare yourself for what’s ahead. In this guide, we’ll break down the step-by-step timeline of a full HDB renovation in Singapore, explain how long each phase typically takes, and share practical tips to keep your project on track.
Average HDB Renovation Timeline in Singapore
The duration of an HDB renovation depends on the scope of work, but for a standard 4-room resale flat, you can expect the process to take around 8–12 weeks. Minor upgrades may take less, while extensive overhauls (like hacking and full carpentry works) can take longer.
Here’s the general timeline breakdown:
- Planning & Permits – 1 to 2 weeks
- Hacking & Demolition – 1 week
- Plumbing & Electrical Works – 1 to 2 weeks
- Masonry & Flooring – 2 weeks
- Carpentry & Fabrication – 3 to 4 weeks (overlaps with other works)
- Painting & Final Touches – 1 week
- Cleaning & Handover – 1 to 2 days
Step 1: Planning & HDB Renovation Permits (1–2 Weeks)
Before any work can begin, your contractor will need to submit renovation plans to HDB for approval. This is crucial, especially if you’re making structural changes like hacking walls, changing windows, or repositioning bathrooms.
Key Tasks:
- Submit layout drawings and renovation plans for HDB approval
- Confirm material choices, finishes, and carpentry designs
- Finalize project timeline with your contractor
Pro Tip:
Engage an HDB-licensed renovation contractor early to avoid delays. Without the right approvals, your renovation could be stopped midway.
Step 2: Hacking & Demolition (Approx. 1 Week)
This is the noisiest and messiest part of the renovation. If you’re renovating a resale HDB, old fittings like kitchen cabinets, floor tiles, and built-in wardrobes will be hacked away.
Key Tasks:
- Hacking walls (if permitted by HDB)
- Removing old tiles, flooring, and wall finishes
- Stripping old carpentry and fixtures
Pro Tip:
Discuss with your contractor what can be retained or refurbished. For example, keeping existing doors or sanitary fittings can save thousands.
Step 3: Plumbing & Electrical Works (1–2 Weeks)
Once the space is cleared, it’s time to work on the invisible but critical parts of your home — plumbing and electrical systems.
Key Tasks:
- Rewiring and installing new electrical points
- Laying water pipes for bathrooms and kitchens
- Installing aircon trunking
Pro Tip:
Plan your electrical outlets carefully. Adding extra points later means hacking walls again, which is costly and time-consuming.
Step 4: Masonry & Flooring (Approx. 2 Weeks)
Masonry work refers to all the tiling and wet works. This is where your home starts taking shape visually.
Key Tasks:
- Laying new floor tiles or vinyl flooring
- Wall tiling for kitchens and bathrooms
- Constructing shower kerbs and kitchen backsplashes
Pro Tip:
Consider vinyl flooring for a budget-friendly and faster option. It can be laid over existing floors without hacking, saving time and money.
Step 5: Carpentry & Fabrication (3–4 Weeks)
Carpentry usually takes the longest because it involves off-site fabrication and on-site installation. While carpentry is being fabricated, other tasks like painting can proceed in parallel.
Key Tasks:
- Kitchen cabinets, wardrobes, and storage units fabricated off-site
- Countertops installed
- On-site fitting of built-in furniture
Pro Tip:
Keep carpentry minimal to save costs. Focus on essential built-ins like the kitchen and wardrobes. Use modular or ready-made furniture for the rest.
Step 6: Painting & Final Touches (Approx. 1 Week)
Once the major works are complete, your contractor will move on to painting and installing finishing touches.
Key Tasks:
- Painting walls and ceilings
- Installing doors, windows, and sanitary fittings
- Mounting light fixtures, fans, and switches
Pro Tip:
Choose neutral paint colors for a timeless look and better resale value.
Step 7: Cleaning & Handover (1–2 Days)
At the end of the renovation, your contractor will do a thorough clean-up and hand over your completed home.
Key Tasks:
- Acid wash for tiled areas
- General cleaning and debris removal
- Walkthrough with the contractor to check for defects
Pro Tip:
Prepare a defect checklist. Test electrical switches, plumbing, doors, and drawers before signing off.
Renovation Timeline: HDB vs. Condo vs. Landed
While this article focuses on HDBs, it’s helpful to know how timelines compare:
- HDB Flats: 8–12 weeks (due to HDB approval requirements)
- Condo Units: 6–10 weeks (approval depends on MCST rules)
- Landed Homes: 12–20 weeks (larger space, more complex works)
Common Delays and How to Avoid Them
Even with the best planning, delays can happen. Here are some common causes and how to minimize them:
- Late Material Delivery – Order tiles, fittings, and appliances early.
- Design Changes Midway – Stick to your initial plan to avoid rework.
- Permit Delays – Engage a licensed contractor familiar with HDB regulations.
- Manpower Shortages – Choose a contractor with strong project management.
Tips for Homeowners Planning an HDB Renovation
To maximize both your renovation results and online visibility, keep these tips in mind:
- Search for “HDB renovation timeline Singapore” or “step-by-step HDB renovation” when researching contractors.
- Always check if your contractor is HDB-licensed.
- Look for transparent renovation packages that list costs clearly.
- Ask for a detailed schedule before works begin so you know what to expect.
Final Thoughts
A full HDB renovation may seem daunting, but understanding the step-by-step timeline helps you stay in control. From permits to final handover, every stage has its purpose, and knowing what to expect will reduce stress, save money, and ensure a smoother renovation journey.
If you’re ready to renovate your HDB flat in Singapore, skip the unnecessary designer markups and work directly with a trusted contractor. With the right partner, your renovation can be efficient, budget-friendly, and beautifully executed.
Speak To Us
At SG Contractor Quote, we specialize in hassle-free HDB renovations with clear timelines and transparent pricing. Whether you’re upgrading a resale flat or remodeling your current home, we’ll guide you through every step. Contact us today for a free consultation and quotation.