Pest Control in HDB Flats and Condos: What You Can Handle, and When to Call Someone
Most pests come down to food, water and a way in, so prevention does most of the work. Bed bugs and termites are the exceptions — and mosquitoes are a public-health matter.
The short answer
- Preventcockroaches, ants and rodents: food, water, gaps
- Call a profor bed bugs and termites
- Every weekclear stagnant water — NEA inspects for breeding
For cockroaches, ants and rodents, prevention does most of the work: remove food and water, seal the ways in, and clear clutter. Bed bugs and termites are different — they rarely go away without professional treatment, and the sooner it's done the better. Mosquitoes are a public-health matter: clear stagnant water every week, because NEA inspects homes for breeding.
Whose problem is it?
- Inside your flat or unit — yours.
- HDB common areas such as corridors, void decks, lift lobbies and bin centres — your town council's. Report pests there to them.
- Condo common areas — the management office's.
If you're renting, check your tenancy agreement for how pest treatment inside the unit is handled.
Cockroaches
Signs: droppings like ground pepper in drawers and cabinet corners, a musty smell, and the cockroaches themselves at night.
What works: cockroaches need food, water and shelter, so take away all three. Wipe down counters, and don't leave food or dirty dishes out overnight. Fix dripping taps and leaks. Clear stacks of cardboard, which they shelter and breed in. Seal gaps around pipes and under sinks. Gel baits placed along the routes they use work better than sprays, which just scatter them.
Call someone when: you're seeing them in daylight, which usually means a large population, or when baiting hasn't made a difference after a few weeks.
Ants
Signs: trails along walls, skirting and counters, usually heading for food or water.
What works: follow the trail to where they're coming in and seal the gap. Keep food sealed. Baits work better than sprays, because the ants carry the bait back to the colony; spraying kills the ants you can see and leaves the colony untouched.
Call someone when: they're coming from inside a wall, or keep returning despite baiting.
Bed bugs
Signs: itchy bites that appear overnight, often in a line or cluster; small blood spots on sheets; tiny dark specks along mattress seams, bed frames and headboards.
Where they come from: most often travel — luggage from a hotel — or second-hand furniture and mattresses.
Why DIY rarely works: bed bugs hide deep in seams, joints and cracks, survive a long time without feeding, and shrug off most household sprays. Professional treatment, usually with a follow-up visit, is the reliable route.
- Don't move bedding or furniture into other rooms — it spreads the problem.
- Wash bedding and clothes on a hot cycle and dry them on high heat.
- If a mattress has to go, wrap it fully in plastic before it leaves the room, so it doesn't spread bed bugs on the way out.
Termites
Signs: thin mud tubes running up walls or along skirting, timber that sounds hollow when tapped or gives when pressed, small piles of discarded wings near windows and lights, and doors or frames that start to sag or stick.
What to do: don't break open the tubes or disturb them — it can drive the colony elsewhere in your home. Call a professional quickly. Termites in built-in carpentry or timber flooring can do expensive damage long before it becomes visible.
Rodents
Signs: droppings, gnaw marks on food packaging or cables, and scratching sounds at night.
What works: seal the gaps they're getting in through — rats and mice fit through surprisingly small openings — and remove food sources. If you're seeing rodents in HDB common areas or bin centres, report it to your town council, because treating your flat alone won't solve it.
Mosquitoes: the one with a legal side
Mosquito control in Singapore is about dengue as much as comfort. NEA inspects homes for mosquito breeding and can take enforcement action if it finds breeding. Once a week, go around your home and:
- Change the water in vases and pots, and scrub their inner sides.
- Turn over pails and containers, and don't leave water standing in them.
- Empty the water from plant saucers.
- Keep roof gutters and scupper drains clear, if you have them.
- Cover bamboo pole holders when they're not in use.
Choosing a pest control service
Pest control operators in Singapore are regulated by NEA, so it's reasonable to ask a company for its licence details. It's also worth asking:
- What treatment they'll use, and whether it's suitable with children or pets at home.
- How many visits it will take, and whether a follow-up is included.
- What happens if the problem comes back within a set period.
- What you need to do to prepare, and how long to stay out afterwards.
Common questions
Who is responsible for pests in HDB common areas?
Your town council looks after common property such as corridors, void decks and bin centres, so report pests there to them. Inside your flat, it's up to you.
Can I get rid of bed bugs myself?
Rarely. Bed bugs hide in seams, joints and cracks and survive most household sprays, so professional treatment — usually with a follow-up visit — is the reliable route. Washing bedding on a hot cycle helps alongside it.
How do I know if I have termites?
Look for thin mud tubes along walls or skirting, timber that sounds hollow when tapped, small piles of discarded wings near windows, and doors or frames that start to sag or stick. Don't disturb them — call a professional.
Can I be fined for mosquito breeding at home?
Yes. NEA inspects homes for mosquito breeding and can take enforcement action if it finds breeding. Clearing stagnant water every week — in vases, pails, plant saucers and roof gutters — is the best prevention.