DIY Reinstatement vs Licensed Contractor
Short answer: For most Singapore office, retail or F&B units, DIY only really covers the cosmetic end of reinstatement: electrical work must be carried out or supervised by a Licensed Electrical Worker regardless of who else is on site.
What DIY can actually mean here
Reinstatement is not one task, it's a sequence: demolition and strip-out, electrical and M&E disconnection, patching, then finishing. A tenant with time and some renovation experience can genuinely do parts of that sequence alone, mostly at the finishing end, clearing out furniture and fixtures the lease doesn't require a specialist to remove, minor patching, repainting. The technical middle of the job is where DIY runs into a legal wall, not just a skill one.
That distinction matters more than it sounds. A tenant who handles the cosmetic parts themselves and engages licensed trades for the rest is doing something different from a tenant trying to complete the whole job solo. The second carries more risk of cost overruns and landlord rejection.
What the law actually requires
Electrical work is the clearest line. Under the Electricity Act 2001, electrical work in Singapore, covering installation, repair, maintenance and inspection, must be carried out or supervised by a Licensed Electrical Worker (LEW), in residential, commercial or industrial premises alike. A typical office reinstatement disconnects lighting circuits and power points as part of ceiling and partition removal, which puts this inside most jobs.
F&B units add a second licensed-trade requirement on top, gas line decommissioning, covered in our F&B reinstatement guide. Reinstatement that crosses into structural changes or larger-scale demolition can also need regulatory approval before work starts, arranged through a professional engineer or your contractor. See our reinstatement permits guide for what triggers that and what's involved.
DIY vs licensed contractor, side by side
The comparison is about what you're legally allowed to do yourself against what you're trading away by trying.
| Doing it yourself | Licensed contractor | |
|---|---|---|
| Electrical and gas work | Must be carried out or supervised by an LEW; gas needs a licensed technician. | The contractor holds, or properly subcontracts, the licensed trades as part of the job. |
| Structural work or larger demolition | Generally needs BCA approval; ask a professional engineer to confirm for your unit. | An experienced contractor typically manages the approval process for you. |
| Time | You coordinate every trade yourself, on top of your own work, over weeks. | One point of contact manages sequencing across trades. |
| Landlord acceptance risk | Higher: a self-managed job that misses expectations means redoing work under time pressure. | Lower: an experienced reinstatement contractor knows what most landlords expect. |
| What you're actually saving | Labour cost on the cosmetic portion; licensed trades are still needed for the rest. | A single itemised quote covering the whole scope of work. |
Which fits whom
If your unit's scope is genuinely light, for example a simple office with no partitions or ceiling changes that just needs repainting and a clean, doing that sliver yourself and checking it against your landlord's written scope is reasonable. Anything involving partition removal, ceiling and M&E work, or a full strip-out to bare shell needs licensed trades regardless of who manages the job, and that's most of what a typical office, retail or F&B reinstatement actually involves.
Splitting the job, handling the cosmetic parts yourself and hiring a contractor only for the licensed scope, can save some money, but check your lease first: some reinstatement clauses expect a single contractor to complete and take responsibility for the whole scope. Requesting quotes from a full-scope contractor, even if you plan to do part of it yourself, is a useful way to see what you'd actually be saving before committing to managing multiple trades.
Frequently asked questions
Does using an unlicensed handyman for the electrical work void my landlord's acceptance?
If unlicensed electrical work causes damage, or is later found non-compliant, you carry that liability and the redo cost yourself, on top of whatever you already paid for it.
Get quotes
Tell us about your space and lease end date and we will pass your details to reinstatement contractors serving your area.
Related guides
Sources
- i2r.com.sg: The Complete Guide to Licensed Electrical Worker (LEW) Requirements in Singapore
- Energy Market Authority: Worker Licences
Checked July 2026.