Mosquito Control & Dengue Spray in Karachi
Pest Tech has provided mosquito control and dengue spray in Karachi since 2005. We find and treat breeding water first, then apply a residual spray to indoor resting surfaces and fog outdoor areas to knock down adult mosquitoes — the combination that actually reduces dengue risk around your home, school or compound.
Signs you have a mosquito problem
Dengue in Karachi is spread by the Aedes mosquito, which bites during the day and breeds in small amounts of clean standing water. After the monsoon (roughly July to September) the risk climbs sharply as containers, tanks and roofs hold water for weeks.
- Bites during daytime or early evening, especially around ankles and under desks
- Mosquitoes resting in dark corners, behind curtains and under beds
- Wriggling larvae in water tanks, flower pots, buckets, coolers or AC drip trays
- Standing water on flat roofs, in blocked gutters or in construction pits nearby
- Night-time humming and bites from Culex mosquitoes breeding in drains and nalas
- Someone in the building or street recently diagnosed with dengue
Our mosquito treatment process
- 01
Breeding-site survey (free inspection)
We walk the property with you — roof, tanks, drains, pots, AC drip points and plant saucers — and mark every place water collects.
- 02
Plan
You get a plan for source removal, larviciding, indoor spray and outdoor fogging, with a schedule if you want repeat treatments through the season.
- 03
Larviciding and drain treatment
Biological larvicide (Bti) or a label-approved larvicide goes into water that cannot be emptied — open tanks, ponds, fountains and drains — killing larvae before they become adults.
- 04
Indoor residual spray and outdoor fogging
A residual insecticide is applied to indoor walls and dark resting areas; gardens, lawns and compounds are fogged with ULV or thermal equipment to knock down adults.
- 05
Aftercare and repeat visits
We leave a short checklist for your household or staff. During peak dengue season a monthly visit keeps new breeding under control.
Methods: larviciding, residual spray and fogging
Fogging alone looks impressive but only kills mosquitoes flying at that moment. Lasting control needs all three layers:
| Method | What it targets | Where |
|---|---|---|
| Source reduction | Future mosquitoes | Emptying containers, clearing gutters, covering tanks |
| Larviciding | Larvae in water that cannot be emptied | Tanks, ponds, fountains, drains |
| Indoor residual spray | Adults resting indoors | Walls, ceilings, behind furniture, under stairs |
| ULV or thermal fogging | Adults outdoors | Gardens, lawns, compounds, school grounds |
Typical actives include Bti (a biological larvicide that is safe in water bodies when used as directed), a pyrethroid such as deltamethrin or cypermethrin for residual spraying, and approved fogging formulations. Every product is used per label, and fogging is timed for when fewer people and beneficial insects are outdoors.
The World Health Organization describes vector control — removing breeding sites and controlling mosquitoes — as the main way to prevent dengue transmission. Read the WHO dengue fact sheet for symptoms and warning signs.
Dengue season plan for Karachi homes and buildings
For a house or flat, most of the work is weekly household habit plus one or two professional treatments at the start of the season. For buildings, schools and housing societies, a monthly programme from July to November keeps shared areas under control.
Weekly household checklist
- Empty, scrub and refill flower vases, pet bowls and bird baths.
- Keep overhead and underground water tanks tightly covered, with mesh on overflow pipes.
- Clear roof gutters and flat roofs after every rain.
- Tip out AC drip trays, cooler water and bucket water.
- Store tyres and junk under cover or remove them.
Housing societies in DHA, Clifton and North Nazimabad often ask us to treat common areas, parks and drains on a schedule while residents handle their own homes. We can split the work that way.
Pests covered
- Aedes aegypti (dengue, chikungunya)
- Culex (nuisance and filariasis)
- Anopheles (malaria)
- Drain and sand flies
Safety for children, pets and food areas
- Children and pets stay indoors with windows closed during outdoor fogging and until the mist has settled; your technician confirms when it is safe to go out.
- Indoor residual spray goes on walls and resting surfaces only — not on food, utensils, bedding or toys.
- Larvicide for drinking-water tanks is used only where the product label allows it, at the label dose.
- Cover fish ponds and aquariums, and move birds, before fogging.
- Fogging of gardens is timed to reduce impact on bees and other beneficial insects.
How much does mosquito & dengue control cost in Karachi?
Mosquito control is priced by the size of the property and the outdoor area to fog, with lower per-visit rates on a monthly season plan. Housing societies and schools are quoted by area. Use the calculator for an instant estimate; the final price is confirmed after a free survey.
Pest Control Cost CalculatorEvery figure is an estimate until a free inspection confirms the scope of work.
Why Karachi chooses Pest Tech for mosquito & dengue control
We start with the water, not the fogger. That is the approach that protects families and staff during Karachi’s dengue season, and it is how we look after schools like Beaconhouse where child safety comes first.
Trusted by Khalid Foods, Beaconhouse School System, Dunkin' Donuts — plus thousands of Karachi homes.
Mosquito & Dengue Control across Karachi
We treat every district of Karachi from our base in Operative Housing Society. Popular areas:
Related guides
Related services
- Flies Control — Breeding-source removal, drain treatment and fly lights.
- Home Fumigation — Whole-house general pest treatment for flats and bungalows.
- Commercial Pest Control — Annual contracts with scheduled visits and audit-ready reports.
Mosquito & Dengue Control: frequently asked questions
Keep children and pets indoors with windows closed during fogging and until the mist settles; your technician confirms the time. Once it has dispersed, the area can be used normally.
During dengue season (roughly July to November) a monthly treatment is recommended, plus weekly checks of water containers by the household.
No. Fogging kills adult mosquitoes that are flying at the time. Removing and treating breeding water and residual spraying indoors are what keep numbers down.
Yes. We treat residential blocks, societies, hospitals, schools and commercial compounds, including parks, drains and common areas.
Only with a larvicide whose label permits use in that kind of water, at the label dose. Covering the tank properly is always the first step.
Yes, same-day visits are available in Karachi when you message us early in the day, especially during outbreaks.
Book mosquito & dengue control in Karachi
Send your area and a photo of the problem — we reply with the next free inspection slot.
Mon–Sat, 9:00 AM – 7:00 PM · Free inspection · Written guarantee