Signs of a Termite Infestation in Your Delhi Home (2026)

The tell-tale signs, in the order you will notice them

Termites give themselves away in a handful of specific ways. Any one of these is worth a proper look; two together is a reason to get an inspection.

• 1. Mud tubes. The clearest sign of all. Subterranean termites — the common Delhi kind — build thin, pencil-width tunnels of mud and saliva to travel from the soil to their food without exposure to air and light. Look for these earthy brown lines running up the outside of walls, along skirting, over the base of door frames, or emerging from cracks in the floor. A fresh tube is damp inside; that means an active colony.
• 2. Wood that sounds hollow. Termites eat wood from the inside out, leaving a thin skin intact. Tap along skirting boards, door and window frames, and the back and underside of wooden furniture against outer walls. A dull, hollow, papery sound where you expect solid wood is a classic sign, especially if the surface still looks fine.
• 3. Discarded wings. At certain times of year, reproductive termites ("alates") swarm, fly a short distance, then shed their wings. Small piles of identical, translucent, teardrop-shaped wings on a windowsill, near a light, or on the floor in a corner are a strong signal that a colony is nearby and breeding.
• 4. Paint that buckles, blisters or bubbles. As termites eat the wood or plaster behind a painted surface and bring moisture with them, the paint above can blister, bubble or look uneven — much like water damage. If it is over wood or at a skirting line and there is no obvious leak, suspect termites.
• 5. Frass — the fine "sawdust". Drywood termites (less common here but present) push their droppings out of tiny holes, leaving small mounds of what looks like fine, gritty sawdust or coffee grounds beneath the infested wood. Subterranean termites do not leave this, so its absence does not clear you.
• 6. Doors and windows that suddenly stick. Termite activity and the moisture it brings can warp frames, so a door or window that has newly become stiff or hard to close — with no weather reason — can be a quiet early clue.

None of these needs a specialist to spot. What they need is for you to actually look — behind furniture, along skirting, at door frames — before the damage becomes structural.

Where termites hide in a Delhi home

Termites follow moisture and cellulose — damp and wood. In a Delhi flat, that narrows the search to a predictable set of places, and the monsoon makes all of them worse.

The moisture link is why the monsoon and its aftermath are the season termites take hold — the same damp that lets them in is covered in our monsoon pest prevention tips for Delhi. Fixing a lingering leak or damp wall removes the conditions they need; if you have a damp problem feeding the timber, our guide on wall seepage and waterproofing covers dealing with the moisture at source.

Why catching them early matters so much

With most household pests, waiting a week costs you nothing. With termites it costs you wood. A colony does not pause — it works continuously, and quietly, through whatever cellulose it can reach. The difference between finding a mud tube early and finding a hollow door frame late is the difference between a routine treatment and replacing joinery.

Two things make termites uniquely worth acting on fast. First, the damage is hidden and cumulative — you are never seeing the current state, only the state of some weeks ago, because the surface stays intact long after the inside has gone. Second, the colony itself is usually out of reach, in the soil or deep in the structure, so a can of spray on the visible tubes kills a few workers and does nothing to the nest. The problem you can see is a fraction of the problem that exists.

This is also why termites are never a DIY job once they are inside the structure. Breaking a mud tube feels like progress, but the colony simply reroutes. A real treatment works on the colony — creating a treated barrier in the soil or baiting the nest — and that needs the right chemicals, the right placement and the training to know where the termites actually are. What that involves, and what it typically costs, is set out in our termite treatment cost guide.

What to do — and what not to do — if you find them

Finding termites is unsettling, but it is not an emergency in the fire-alarm sense — it is a this-week problem, not a this-minute one. Do the useful things and avoid the counterproductive ones.

• Do leave the mud tubes alone until an inspection. They are the map. A specialist reads active tubes to find where the termites are entering; scrubbing them off first destroys that information and does not stop the colony.
• Do note where you found the signs. Which walls, which frames, which furniture, and whether the tubes look fresh and damp or old and crumbly. It helps the inspection and helps you judge the scope you are quoted.
• Do fix the moisture feeding them. A leak or damp wall is what invited them; dealing with it — see wall seepage and waterproofing — removes the conditions they need to return.
• Do not rely on hardware-shop sprays. They clear visible workers and leave the nest intact, which buys a few weeks and a false sense of safety while the colony carries on.
• Do not accept a flat "whole-house termite spray" sold at the door. A real treatment is matched to where the termites actually are and how they enter. Get an inspection and a written quote first, and compare it — our note on hiring without being overcharged covers how.

The independent, ID-verified professional you choose will inspect, explain what they have found, and quote you free before any treatment starts — and you pay them directly. For the indicative ranges to judge that quote against, see the termite treatment cost guide for Delhi NCR.