A pest control technician checking a drainage point at a building perimeter

Mosquito control in Al Harazat Jeddah

Al Harazat is a densely packed residential district that grew rapidly on former agricultural land through informal subdivisions. The drainage infrastructure has never caught up with the population, water pools in narrow streets and cannot evaporate quickly, and buildings stand so close that mosquitoes travel freely from one apartment to the next. Humidity is trapped year round.

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Targeted, not broadcast

Product goes into cracks and runways, never sprayed across open surfaces.
Told before we start

What we will use, where it goes, and what to cover or move before we arrive.
A follow-up visit

We return after the first treatment, because what survives it does not show on the day.
Homes and businesses

Apartments and villas, and kitchens and stores that need a record of each visit.

Why they keep coming back in Al Harazat

In Al Harazat the windows and air vents of neighbouring flats are so close that a mosquito colony bred in one apartment drifts effortlessly into the next within days of emergence. The method is set out in full on Mosquito control in detail.

The first reason

Narrow streets trap water and humidity indefinitely

Streets in Al Harazat are narrower than modern standards, creating pockets where water gathers in ruts and cannot dry quickly. Buildings block air circulation, so humidity stays high even in dry weather. Larval breeding is continuous.

The second reason

Shared drainage is older than the district itself

The neighbourhood was built quickly and the original agricultural drainage lines beneath it are still the main sewer system. Water collects in underground voids and inter-building cavities that no single apartment owner can access or maintain.

The third reason

Population density accelerates spread between units

Window to window distance is minimal, permitting immediate migration of adults from treated flats to untreated neighbours. Single apartment treatment fails because adjacent units replenish the colony within days of emergence.

Al Harazat on the map

Al Harazat sits about 4.5 km from Umm Al Salam and about 5.5 km from Al Mahamid.

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Before treatment

Standing water and shade decide the method

The district was built outside municipal planning regulations on land with inadequate stormwater capacity. Narrow streets and tight building spacing mean standing water persists for days after rain or irrigation.

The daytime biter

Daytime mosquitoes in Al Harazat rest in the cavities between buildings and the shadowed corners of narrow streets where air does not move and humidity stays high.

A drainage grate over dark standing water

The one that comes out after sunset

After sunset the colonies emerge from underground voids and shared drains, with the heaviest flight occurring in every narrow passage and between buildings after dusk.

An outdoor air-conditioning unit fixed to a building wall

Air-conditioning condensate

Each apartment air conditioner leaks water that pools immediately outside windows and in foundation cracks, creating dozens of micro breeding sites across the district.

The tank and its openings

Water tanks are filled from the shared underground main that also feeds drainage, meaning tank water may be contaminated and attracts mosquitoes that would ignore clean systems.

Potted plants in a garden standing in saucers

Garden containers and irrigation

Small courtyard gardens and pot plants are common, daily watering is necessary in the heat, and overflow water runs into gaps and cavities beneath the buildings.

The shade it rests in

Permanent shade fills the narrow alleys between buildings, creating cool refuges where adults rest by day, and the trapped humidity prevents the desiccation that would naturally kill them.

How we work

1
Inspect and map the water

We walk the perimeter, the roof, the garden, the meter chambers and the condensate runs, record everything that holds water, and read the species from the breeding site and the time of biting.
2
Remove the water that can go

Empty, invert, cover: saucers, containers, old tyres and roof gullies. Every point that disappears is a treatment that never needs repeating.
3
Larval treatment, then the resting surfaces

Water that cannot be drained is treated so the larva never completes, then a residual goes under planting, beneath outdoor furniture and along low shaded walls.
4
The follow-up visit

We come back once the generation that was in the water on the first visit has completed, review every point we recorded and re-treat where needed.

What mosquito control includes

A recorded water survey

Roof, perimeter, garden, meter chambers and condensate lines, written down before anything is applied.
Draining and covering the sources

Emptying what can be emptied, draining what can be drained, and covering what has to stay full.
Larval treatment for the water that stays

For ground tanks, inspection chambers, water features and any permanent water that has to remain.
A residual on the resting places

Under trees and shrubs, beneath outdoor furniture and on shaded walls, where the adult sits out the day.
Aftercare instructions

What stays inverted, what gets covered, which openings need mesh, and when watering goes back to normal.
A scheduled follow-up

A set date after the first treatment, with every recorded water point reviewed and re-treated if the water came back.

The character of Al Harazat

Apartment district: residential blocks, repeated floors and shared entrances

In Al Harazat's dense apartment district, flats are so closely spaced that a mosquito colony bred in one unit drifts into neighbours within forty-eight hours of emergence. Treating a single apartment leaves you neighbour-dependent.

Questions about this district

Why does Al Harazat have more mosquitoes than newer districts?

The district grew on old farmland and was never replanned. Original agricultural drainage runs beneath it remain the primary sewer, with weak capacity and poor gradient. Water collects in underground gaps and remains standing.

Do the narrow streets actually cause the mosquito problem?

Yes. Narrow streets trap air and humidity, and rainwater or irrigation remains on the surface longer. The shade and moisture create continuous breeding conditions. Drying times are half those in wider, sunlit areas.

Do mosquitoes move freely between flats in this district?

Extremely freely. Windows are metres apart, air intakes nearly touch, and adult mosquitoes navigate the distance easily. If you treat one flat, neighbours will introduce new colonies within two days of adult emergence.

Does garden watering in small courtyards feed the problem?

Garden water and rooftop runoff do contribute, but the primary source is the ancient drainage system trapped underground. Overflow from that system creates standing water independent of household watering practices.

Does treatment need to happen more often here than in other areas?

Yes. Environmental conditions in Al Harazat support continuous breeding and cross-flat migration is rapid. Treatment intervals must be shorter and geographically broader to contain the population.

Does the mosquito population explode immediately after heavy rain?

Yes, visibly and within three days. The narrow streets and poor drainage create hundreds of temporary pools, each one a larval breeding site, and the cohesion of flats means they mature together.

How much does mosquito control in Al Harazat cost?

It is set after the inspection, because the price follows the type of infestation, the size of the space, how far it has spread and the number of visits it needs. Send a photo and a description on WhatsApp and we will give you an estimate before we reach Al Harazat.