Lizards in the House: What Actually Works in Delhi

Why is my house full of lizards?

Because your house is feeding them. A gecko is a small insect hunter, and it sits wherever the insects gather. Once you see it that way, the pattern in your own flat starts to make sense.

• Lights are the whole story. Tube lights, balcony lights, the porch bulb, a lit window at night, a corridor light in a society building — each one pulls in moths and small flies from a wide area, and the geckos follow. This is why they cluster on the wall above and beside lights, and why the same wall gets them year after year.
• The kitchen and the bathroom. Warmth, a bit of moisture, small insects around the bin and the drain, and gaps behind the fridge and the cabinets to sit in during the day. The gap behind a wall-mounted kitchen unit is a favourite daytime resting spot.
• Monsoon and just after. Late June through September, insect numbers in Delhi jump, and lizard sightings jump with them. Households who saw one all winter suddenly see five. It is not that lizards bred in your house that week; it is that the food arrived. Our monsoon pest prevention tips cover the wider seasonal surge.
• The building, not the flat. They travel along external walls, pipe shafts, ducts, false ceilings and the gap under doors, so a high floor is no protection at all. In a society building they move between flats freely.

The practical consequence: chasing the lizard is chasing the symptom. Reduce the night-time insects around your home and the geckos thin out on their own, because there is nothing left to hunt.

What actually reduces lizards (and it is mostly free)

Two levers do nearly all the work: take away the insects and close the gaps. Neither is dramatic, both are cheap, and together they are the only approach that keeps working after the first week.

• Change what your lights do at night. Keep balcony, porch and stairwell lights off when you do not need them, and switch outdoor fittings to warmer-toned lamps, which pull in noticeably fewer flying insects than cool white ones. Draw curtains at night so an interior light does not advertise your window to every moth on the street. This single change does more than any product sold as a lizard repellent.
• Fit and repair mesh. Fine mesh on windows, on kitchen and bathroom ventilators, and on the exhaust fan opening keeps out both the insects and the geckos themselves. A torn corner of an old mesh is the usual entry route people never look at. Check the mesh on the kitchen ventilator specifically — in most Delhi flats it is either missing or long since torn.
• Close the gaps. Gaps under doors (a door sweep or brush strip), around pipe entries under the sink and behind the WC, around the AC pipe sleeve through the wall, and the open edge of a false ceiling or a boxed-in duct. Geckos flatten remarkably thin. The pest-proofing checklist goes through this room by room.
• Cut the smaller pests they eat. Fewer flies, fewer moths, fewer silverfish and fewer mosquitoes means fewer geckos. That means a lidded wet-waste bin, dry kitchen counters at night, no standing water in balcony saucers, and dealing with any fly problem at its source.
• Clear the daytime hiding places. Move stacked cartons off the top of wardrobes, clear the gap behind wall units and picture frames, and clean behind the fridge. A wall with nowhere to hide during the day is a wall they use less.

Give this a few weeks before you judge it. Insect numbers fall first, and the geckos drift away after, because they are following the food and not you.

The remedies that do not work

This is the part most pages leave out. A large industry sells lizard remedies, and most of them fail the simple test: does the lizard actually leave and stay gone? Save your money and your evening.

• Naphthalene balls. The most common suggestion in Delhi and among the least effective. Geckos walk straight past them. They are also strongly scented in a closed room, which is a reason to be careful with them around children and pets rather than a reason to scatter more.
• Ultrasonic plug-in devices. Widely marketed for lizards, rodents and insects alike. Independent testing of these devices has generally not supported the claims made for them, and households who buy them usually report the animals adapting within days. If a seller cannot show you evidence, treat the claim as advertising.
• Kitchen folklore. Eggshells on the shelf, garlic or onion cloves, coffee powder, pepper, tobacco, peacock feathers, chalk lines. These are traditional and harmless to try, and none of them empties a wall of geckos. If a gecko leaves the day you put out eggshells, it left because the moths did.
• Glue traps and killing individual lizards. Beyond being an unpleasant business, it does not solve anything: as long as the insects are there, the next gecko moves into the vacancy within days. You end up doing it again every month.
• A general insecticide spray on the wall. No spray is meant for or reliably works on a gecko, and spraying a living area is a decision with its own precautions. Reducing their food is the route that works.

How do I get a lizard out of a room right now?

Calmly, with a door or window open and something to guide it, and without cornering it. A gecko that feels trapped runs upward and into furniture, which is exactly what you do not want.

• Open one exit and close the rest. Open the window or balcony door nearest to it, shut the doors to other rooms, and switch off the lights in the room you are in while leaving the outside route lit or bright. They move towards the open air on their own more often than people expect.
• Guide, do not chase. A long broom held low and moved slowly behind it, or a sheet of stiff cardboard, steers it far better than swatting. Approach from the side away from the exit so the open window is the easy direction.
• Trap and release, if you must handle it. Put a container over it against a flat surface, slide thin card underneath, and carry it out. Do not grab it by the tail: house geckos shed their tail when held, which leaves you with a wriggling tail, a stressed animal and the same problem.
• Behind the wardrobe or inside the sofa. Leave the room quiet with an exit open for an hour rather than dismantling furniture. They move at night; most resolve themselves by morning.
• If one gets into an appliance or a switchboard. Do not poke inside a switchboard or an electrical panel and do not spray into it. Switch off at the mains and call an electrician.

Afterwards is when to do the useful part: find how it got in. Nine times out of ten it is a torn ventilator mesh, a gap under a door, or an open kitchen window at night.

Does pest control get rid of lizards?

Not directly, and you should be careful with anyone who says otherwise. There is no standard household treatment that targets geckos in an Indian home. What a competent pest control round does is work on the layer underneath: it reduces the insect population the lizards feed on, which reduces the reason they stay.

So the sensible framing when you call someone is this. If you also have cockroaches, ants, mosquitoes or a fly problem, treating those is worth doing on its own terms, and a quieter wall is a side effect rather than the deliverable. If lizards are your only complaint, the honest answer is that meshing, sealing and lighting changes will do more for you than any treatment, and a good professional will tell you that.

• Ask what is actually being applied and where. If someone quotes a “lizard spray” for your walls, ask what it is meant to do and how long it lasts. Vague answers are your signal.
• Ask about precautions, not about safety. Ask how long to stay out of the room, how long to ventilate, what to cover, what to do about pets, a fish tank or a birdcage, and what to wipe down afterwards. Ask for the product label to be shown to you. Never accept the word “harmless” as an answer — ask for the instructions instead.
• Get the scope and follow-up in a message. What is being treated, how many visits, and what the follow-up covers, agreed in writing before work starts.

On money: we do not quote figures here and we do not set anyone’s price. What drives it is the size of the home, which pests are actually being treated, and whether it is a one-off round or a running contract — see the pest control cost guide, or the AMC guide if you are thinking about a yearly arrangement. If the smell of a treatment is your concern, the low-odour options guide explains what those actually are and are not.