Anti-Termite Treatment Cost in Delhi: Per Sq-Ft Pricing Explained (2026)

Why anti-termite treatment is priced per square foot

Here is the thing nobody explains before they quote you. Termite work is sold by the square foot because that is genuinely how the cost is built up. The technician is either treating a volume of soil under and around your building, or drilling a grid of holes through your floor and injecting chemical into the soil beneath — and both of those scale directly with floor area. A 1,000 sq-ft flat needs roughly half the chemical, half the drilling and half the labour of a 2,000 sq-ft one. So when a provider says “₹12 per sq-ft”, the real bill is that rate multiplied by your area. Know your area and you control the conversation.

But — and this trips up almost everyone — there isn’t one per-sq-ft rate. There are two completely separate rate cards, because there are two completely different jobs hiding under the words ‘anti-termite treatment’:

• Pre-construction anti-termite treatment is done while the house is being built, before the floor is laid. The soil itself — the foundation pits, the plinth fill, the area around pipes — is drenched with termiticide so the building sits on a treated barrier from day one. It’s priced per sq-ft of plinth area (the ground-floor footprint).
• Post-construction (curative) treatment is the drill-fill-inject job you call for when the house already exists — either as a precaution or because deemak has shown up. Holes are drilled along the wall-floor junction, chemical is injected under pressure, and the holes are sealed. It’s priced per sq-ft of built-up area, and it costs more per foot because it’s slow, manual and disruptive.

For most people reading this in a finished Delhi flat in 2026, the second one — post-construction — is what you actually need. But if you’re building, the first one is the single cheapest insurance you’ll ever buy against termites. Let’s price both, honestly.

Pre-construction anti-termite cost (per sq-ft of plinth)

If you’re building a home anywhere from Dwarka to Chattarpur to the new floors going up across South Delhi, this is the stage to act — and it’s cheap relative to the protection. The soil is treated in stages: the bottom and sides of foundation pits, the top surface of the plinth fill before the floor slab, the junction where the building meets the earth, and around all the points where pipes and conduits pierce the slab. Because the soil is open and accessible, labour is low and the rate per sq-ft is the lowest you’ll see.

Realistic Delhi 2026 ranges, on plinth area:

A worked example: a 1,200 sq-ft plinth treated with imidacloprid at ₹10/sq-ft is about ₹12,000 plus GST — for a barrier under the entire house, done once, while it’s easy. Compare that to drilling the same house open later and you’ll see why builders who skip this to save a few thousand rupees are being penny-wise. One caveat worth knowing: pre-construction treatment has to be timed to the construction schedule. Miss the plinth stage and you can’t go back — you’re now a post-construction job at double the rate. Coordinate with your contractor early.

Post-construction anti-termite cost (per sq-ft of built-up area)

This is the one most Delhi homeowners pay for. The house is finished, the floor is tiled, and now someone has to create that soil barrier the hard way — by drilling. The standard method is drill-fill-inject: holes about 12mm wide are drilled roughly 30cm apart along the wall-floor junction (and around door frames, expansion joints and pipe entries), termiticide is injected into each hole under pressure to saturate the soil below, and the holes are sealed flush with white cement. It’s methodical, dusty work, and that labour is why the per-sq-ft rate runs higher than pre-construction.

Worked example: a 1,000 sq-ft built-up flat treated with imidacloprid at ₹15/sq-ft is around ₹15,000 plus GST. The same flat done in fipronil for an active infestation might be ₹20,000. Two honest notes on how this is measured. First, many providers quote on built-up (carpet plus walls) area, not just the area being drilled — ask which, so you’re comparing like with like. Second, very small jobs — a single bathroom, a doorframe, one affected wall — usually don’t go by pure per-sq-ft. They carry a minimum job charge, which is why our termite work starts from ₹2,499: sending a trained technician with pressure equipment for ten holes still costs what it costs.

How chemical choice changes the price — and the longevity

The single biggest lever on your per-sq-ft rate is which termiticide goes in the ground. All three below are approved by the Central Insecticides Board & Registration Committee (CIB&RC) for anti-termite use; the difference is chemistry, persistence and cost.

*Longevity is not a fixed promise. How long a barrier holds depends on the chemical, the dose actually applied, soil type, drainage, moisture and whether the barrier was ever broken by later plumbing or renovation work. Treatment longevity varies — typically multi-year when done properly — so always ask your provider for their specific, written re-treatment terms rather than trusting a round-number “guarantee” said aloud on the doorstep. The newer non-repellent chemicals (imidacloprid, fipronil) have an edge worth understanding: instead of just repelling termites, they let the insect walk through the treated zone and carry the active back to the nest, which can knock out the colony rather than merely fencing it off. That’s often worth the higher per-sq-ft rate when you have an active infestation.

How to measure your area before you ask for a quote

You don’t need a survey diploma to sanity-check a quote — you need a number. Here’s how to get it for each job type so nobody can fog you with “trust me, it’s a big house”.

• For post-construction (built-up area): take the external length × external width of your flat or floor in feet. A standard 2 BHK in Delhi is commonly 900–1,200 sq-ft built-up; a 3 BHK 1,300–1,800. If you have your registry or builder agreement, the super built-up / built-up figure is printed on it — though super built-up includes common areas, so it slightly overstates what gets drilled. Ask the provider whether they’re quoting on built-up or carpet.
• For pre-construction (plinth area): it’s the ground-floor footprint — the outer dimensions of the building at plinth level. Your architect’s drawing or the sanctioned plan has this exactly.
• Reality check the multiplication: if you’re quoted a flat lump sum, divide it by your area to back out the per-sq-ft. If a “1,000 sq-ft” flat is quoted at ₹40,000 for a routine imidacloprid job, that’s ₹40/sq-ft — well above the 2026 range, and worth questioning.

One more practical tip from years of doing this in Delhi: measure the perimeter too, roughly. Post-construction drilling follows the wall-floor junction, so a flat with lots of internal walls and partitions has more linear drilling than an open-plan one of the same area — which is one honest reason two same-size flats can be quoted differently.

Why two quotes for the ‘same’ house can differ so much

People send me two quotes that are ₹8,000 apart and ask which one is the scam. Usually neither is — they’re pricing different work and calling it the same name. Here’s what actually moves the per-sq-ft number, so you can read a quote properly:

• Chemical and brand. Chlorpyrifos vs imidacloprid vs fipronil is the biggest swing, as the table above shows. A “cheap” quote is often a cheaper chemical at a lower dose.
• Dose and dilution. The cut-price operator’s real trick is over-diluting the chemical — same litres of liquid, far less active ingredient in the ground. You can’t see it on the day, only when termites come back. Ask for the product name and the dilution ratio in writing.
• Built-up vs carpet vs drilled area. One firm quotes ₹15/sq-ft on carpet area, another ₹13 on built-up — the second can end up dearer. Always confirm the base.
• Pre vs post and access. Ground-floor units, basements, and homes with lots of tiled hard flooring to drill cost more in labour than an open under-construction plinth.
• Re-treatment terms. A provider offering a longer written re-service period prices it in — and that’s usually money well spent versus a bare one-day job.
• GST. Pest control is taxed at 18%. A quote “inclusive” vs “plus GST” is an 18% difference before you compare anything else.

My honest steer for a Delhi home in 2026: don’t chase the lowest per-sq-ft. Pick a non-repellent chemical (imidacloprid or fipronil), get the product, dose and re-treatment terms in writing, and treat a mid-range rate as the sensible zone. The cheapest drill-and-spray that fails in a year isn’t cheap — you pay twice and lose a season of flooring to deemak in between.

What you should get on paper — and where we treat

Whatever you pay per sq-ft, insist the job leaves a paper trail. A proper anti-termite treatment should come with a GST invoice stating the area treated, the chemical and dose used, the method, and the written re-treatment terms — plus before/after photos of the drilling and sealing. Those are your audit-ready records if you ever sell, hand over to a tenant, or need a re-service called. If a provider won’t put the chemical, dose and area on the bill, that tells you something about what actually went in the ground.

We do both pre- and post-construction anti-termite work across Delhi — from South Delhi colonies like Greater Kailash, Vasant Vihar, Saket and Defence Colony, to West and North Delhi, the East Delhi belt around Mayur Vihar and Preet Vihar, and Central Delhi. Coming soon: Gurgaon, Noida, Faridabad and Ghaziabad. Tell us your area and whether you’re building or already moved in, and we’ll give you an itemised per-sq-ft quote with the chemical and terms spelled out — termite treatment from ₹2,499. Call 95603 66362.