Pest-Proofing Old Pakistani Houses: A Room-by-Room Checklist
A lizard on the wall at 2am, a cockroach that vanishes under the fridge the second the light goes on, a snake sighting near the drain in monsoon season. Old Pakistani houses see all three, and spraying the room is the least effective thing you can do about it.
Before you start
- Real fix: seal entry gaps first, sprays are a distant second step
- Cockroach magnets: standing water under sinks, uncovered food, cardboard boxes
- Common lizard entry: gaps around window frames and exhaust fan holes
- Snake caution: never handle or corner one yourself, call a local wildlife or municipal helpline
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Why spraying alone never fully works
Most totka posts jump straight to a spray, phenyl in a bucket, neem oil on cotton balls, kerosene near drains. Some of it does repel insects for a few hours. None of it closes the gap the cockroach walked through in the first place. Old houses with hairline cracks in plaster, gaps under doors, and drains without proper traps will keep producing new arrivals no matter how much you spray, because the building itself is the problem, not any single insect.
Structural fixes take longer to do once but need repeating far less often. That is the trade worth making.
Room by room: kitchen
The kitchen draws roaches for food and water, both. Start here.
- Fix any dripping tap under the sink, even a slow drip gives roaches a water source overnight.
- Seal the gap where the drain pipe passes through the cabinet wall with steel wool packed tight, then a bead of silicone sealant over it, roughly a 5 mm bead is enough.
- Store dry goods (atta, rice, daal) in airtight containers with tight lids, not the original paper or thin plastic packaging.
- Wipe stove and counter crumbs before bed, every night, not “most nights.”
- Empty the bin daily in summer, roach eggs can hatch inside a bin left three days.
Room by room: bathrooms and drains
Roaches and small lizards both travel through open drains. A P-trap (the curved pipe under a sink or floor drain) that holds standing water blocks this route completely, but many older homes have traps that have dried out or were never installed with the right bend.
| Problem | Fix |
|---|---|
| Floor drain with no water seal | Pour a mug of water down it weekly to keep the trap full |
| Gap around exhaust fan | Install a fan cover with a one-way flap, costs little and blocks direct entry |
| Cracked tile grout near drains | Regrout, gaps here are a favourite geckos and small roaches use |
Room by room: bedrooms and living areas
Lizards mostly follow insects, which they eat, so a room with fewer flying insects around a light bulb usually has fewer geckos too. Window and door gaps are the other entry point worth checking.
- Run a strip of foam door seal, about 1 cm thick, along the base of external doors where you can see daylight through the gap.
- Fill hairline cracks in window frames with a paintable acrylic filler, then repaint if needed.
- Fit fine mesh (roughly 1 mm gauge) over any exhaust or ventilation opening larger than a fingertip.
- Switch outdoor porch bulbs to a yellow “bug light” where possible, insects gather far less around warm-toned light.
Neem leaves scattered in cupboards, garlic cloves near entry points, and eggshells at doorways are all part of older household pest lore. None of these are proven repellents in the way modern sealing is, but neem’s smell genuinely does put off some insects for a short time, and there is little harm in using it alongside, not instead of, sealing gaps.
When it is a snake, not an insect
Snakes near older houses usually follow rodents or come in through drain openings and overgrown boundary walls in monsoon months. This is the one situation where you do nothing yourself beyond keeping people and pets away from the area.
Any snakebite, even one you think might be from a non-venomous species, needs immediate hospital assessment. Do not apply a tourniquet, do not cut or suck the wound, do not apply ice. Keep the person as still as possible and get to the nearest hospital emergency department right away. Never attempt to catch, kill or identify the snake yourself; describe it to hospital staff or wildlife control instead.
For prevention, keep grass cut short near boundary walls, clear woodpiles and rubble away from the house, and seal gaps under external doors and around drain covers, the same structural work that keeps insects out also removes hiding spots snakes use to approach a house unseen.
Storage areas and the store room nobody checks
Most old Pakistani houses have a store room or under-stairs storage that gets opened once a month, which is exactly the kind of undisturbed, dark, slightly damp space cockroaches and silverfish prefer over a busy kitchen. Cardboard boxes are the worst offender here, roaches lay eggs in the corrugated layer itself, not just on top of it. Moving stored goods into plastic crates with lids, even old paint buckets with lids repurposed for this, removes that habitat almost completely.
- Empty the store room once, in daylight, and check every cardboard box for droppings (small, dark, pepper-like specks) or shed roach skins before deciding what to keep.
- Replace cardboard with plastic storage bins, sealed with a lid, for anything staying more than a month.
- Leave a 5 to 8 cm gap between the wall and any stacked boxes or furniture, this alone removes a huge share of hiding spots roaches and lizards use.
- Sweep and check the room every two weeks rather than monthly, once pest-proofing is done, this catches new problems before they establish themselves.
Rodents matter too, not just insects and reptiles
Mice and rats are often the reason snakes approach a house boundary in the first place, since snakes follow their food source. Sealing gaps under external doors to under 6 mm, keeping pet food and grain stored in metal or thick plastic containers rather than sacks, and clearing rubble or overgrown vegetation near boundary walls all reduce the rodent population that draws snakes closer. Treat rodent control as part of the same structural project as insect sealing, not a separate task.
Keeping a cat in the house or courtyard was, for generations, the standard rodent control method in South Asian homes, and it remains genuinely effective where a household can care for one properly. It works alongside structural sealing, not instead of it, a house full of gaps will still draw new mice even with a cat patrolling it.
This week
Pick one room, walk its perimeter at floor level with a torch at night, lights off elsewhere in the house. Every place you see a gap of light or draft is a real entry point, not a guess. Mark each with tape and seal them over the weekend.
Do ultrasonic pest repellers actually work?
Evidence for these is weak and inconsistent across independent tests. Sealing gaps and removing food and water sources does far more, reliably.
Is it safe to use kerosene as a roach repellent indoors?
Kerosene fumes indoors are a genuine respiratory irritant, especially for children, asthmatics and in poorly ventilated rooms. Skip it; use sealing and boric acid gel bait stations placed out of children’s reach instead if you want a chemical option.
Why do lizards keep appearing even after I clean?
Lizards follow insects, not food crumbs the way roaches do. If insects are still getting in through window or vent gaps, lizards will keep following them regardless of how clean the kitchen is.
None of this needs to be expensive. Steel wool, sealant, a torch and one focused evening per room will do more for a pest problem than a season of sprays. Explore more practical household guides in Desi Remedies, or see our piece on a gentler baking soda alternative for underarm skin if you liked this room-by-room approach applied to something else in the house.