Built to end the spray-and-leave
Adrian Goh started Sentry after years in the trade watching the same thing: customers paying for a quick spray that killed the pests they could see, then calling back a fortnight later when the problem returned. The source was never touched.
So he built a company around the opposite idea — find the source, treat it properly, and stand behind the work. Bait the colony, proof the entry points, reduce the breeding sites, and write an honest report. No scare tactics, no upselling treatments you don’t need.
Fourteen years later, that’s still the whole company — and the reason our customers stay pest-free, not just pest-free until next month.
What a Sentry treatment means
Source-first treatment
We bait colonies, proof entry points and reduce breeding sites — the work that ends an infestation, not the spray-and-leave that just postpones it.
NEA-aware & family-safe
Products approved for use here, applied by trained technicians, and used carefully around children, pets and food. Tough on pests, gentle on everyone else.
Warranty-backed
A 60-day warranty on treatments. If the pests return in that window, we do too, free. Confidence comes from doing the job right the first time.
Trained, vetted technicians
In-house, certified technicians who explain what they’re doing and why — not an ever-changing crew of casual sprayers who treat your home as just another stop.
Honest reports
A clear written report after every visit: what we found, what we treated, and what to watch for. No mystery, no upsell to treatments you don’t need.
Homes & businesses alike
From an HDB kitchen to a restaurant chain or a warehouse, the same source-first approach — scaled, scheduled and documented for whoever needs it.
The people on the tools
Adrian Goh
Started Sentry after years of watching customers pay for spray-and-leave that never worked. Built the company on source-first treatment and honest reports, and still runs the tricky termite jobs himself.
Kumar Raj
Trains every technician and runs the schedule. The reason a Sentry treatment is done the same thorough way whether it’s your first visit or your fortieth.
Marcus Sim
Looks after F&B, warehouse and office contracts. Knows exactly what passes an inspection and keeps premises pest-free and audit-ready.
Singapore, pest-free
We’d tried every supermarket spray and the roaches kept coming back. Sentry baited the source and within two weeks they were gone — properly gone, months later still nothing. The technician talked me through every step and we paid precisely what was quoted, not a cent more.
Found mud tubes in the store room and panicked. Adrian inspected, baited the colony and set up an annual plan. Thorough, honest, and no scare tactics to upsell. I finally stopped worrying about the timber in our place.
We have the quarterly contract and it’s the best home decision we’ve made. Same technician each time, a clear report after every visit, and we just don’t have pests anymore. Worth every cent for the peace of mind.
Running an F&B outlet, a pest sighting can shut you down. Sentry keeps our premises audit-ready with scheduled treatments and proper documentation. Reliable, discreet, and they work around our hours. Couldn’t run without them.