Preventive treatment in Harat Al Yaman, Jeddah

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 Harat Al Yaman

Insects shelter in cracks in the ancient stone and in the narrow gaps between tightly joined houses before crossing into living spaces. The method is set out in full on how we approach Preventive treatment.

The first reason

Stone and chronic dampness in the base

Coral stone absorbs water from soil and rain and dries slowly. The base of the exterior wall stays damp for long periods, creating an ideal environment for insects and mould. The external residual band must be thick, cover all the historical cracks and be checked more often because its effectiveness fades faster on old stone than on modern concrete.

The second reason

The market nearby and stored goods below

Souq Al Alawi nearby attracts food insects and rodents all year. Goods stored in the spaces under houses and in shops create direct migration routes. Monitoring points are placed at storage exits, not just at the public doors above, to detect movement before it enters occupied rooms.

The third reason

Shared drains and inter-house gaps

The old houses share underground drainage channels that may be decades old. Insects move through these channels from house to house. The preventive programme must treat the connection points below ground, not just the upper entrances, and the monitoring points read these shared routes directly.

Harat Al Yaman on the map

Harat Al Yaman sits about 0.5 km from Harat Al Bahr and about 0.5 km from Harat Al Mazloum.

Open in Google Maps

Before treatment

What a preventive visit reads

Old coral stone foundations absorb water from soil and rainfall, and closely spaced buildings prevent adequate air flow through the spaces beneath the lowest floors.

The base of an exterior wall where the building meets the ground

The base of the outside wall

The coral stone base absorbs moisture and cracks easily, so it needs close monitoring and the external residual band is applied carefully not to damage ancient stone.

An exterior door threshold and the gap beneath it

Gaps and openings

The narrow gaps between tightly joined houses are waterlogged after rain and may become silted or packed with mud, creating hidden pathways for insects.

An outdoor air conditioning unit with a condensate pipe on the wall

Air conditioning condensate

Air conditioning condensate drips onto damp ground that never dries, becoming part of the chronic dampness problem rather than a separate issue.

Floor drains

The floors of spaces below houses and shops may be bare earth or old stone with no modern drainage, staying wet throughout the year.

A drip irrigation line in damp soil beside planting

Irrigation against the wall

Traditional irrigation on rooftops and courtyards seeps through cracks in the walls into the interior; there is no clear boundary between outside and inside.

A closed monitoring station at the foot of a wall

The monitoring points

Monitoring points are placed at multiple levels: underground at the drainage channels, on the base wall, at shop entrances, and at upper level openings.

How we work

1
The baseline survey

We walk the outside boundary and then the inside: gaps under doors, pipe runs, vents, condensate lines, drains, the bin area and the store, and we fix the monitoring points before anything is applied.
2
Close the routes

Mesh on the vents, the gap under the door dealt with, the sleeve around a pipe run closed, and water put back into the drain nobody uses. Exclusion saves a spray that would otherwise repeat forever.
3
The band and the placed product

A residual band at the base of the wall outside and around door and window openings, with placed product inside joints and closed voids where it is warranted, and no open spray across living surfaces.
4
The scheduled visit: read, renew, record

We read the points to see which side is under pressure, renew the band where sun or irrigation has taken it, aim the visit at what the coming season opens up, and write down what was found and what was used.

What the preventive programme includes

A survey, then a check every visit

Entry points, moisture sources and storage, recorded before anything is applied and revisited each time.
Monitoring points that get read

At the wall and floor junction, under sinks and in the store, checked on every visit rather than only the last one.
A renewed exterior band

At the wall base and around the openings, put back wherever sun or irrigation took it between visits.
Drains, water lines and waste

The water seal in the drains, the condensate line and the ground around the bins, which are the standing water and food sources.
Between the visits

What to keep dry, what to keep closed, and what is worth a call before the next date. Ventilation we tell you before the visit.
A scheduled visit and a record of each

An agreed date, what the points held, what was treated, and what changed since last time.

The character of Harat Al Yaman

Historic district: close-set buildings, narrow lanes and ageing services

Historic district means the building is not isolated and spaces are shared between houses. Prevention here protects against insect migration between homes via underground channels and gaps that cannot be sealed, not just the individual house.

Questions about this district

Why is preventive treatment especially recommended near the popular market?

The market attracts food insects and rodents all year round. Stacked goods and constant dampness create an ideal breeding ground. Preventive treatment protects neighbouring homes from the natural migration of insects from the market into residential floors and storage spaces.

Does the programme cover the commercial shops on the ground floor?

Yes, monitoring points are placed at the boundaries of clothing shops, spice stores and small groceries. Treatment of the shared base wall prevents insects crossing from the ground floor shops into residential upper floors.

How does the programme handle the old coral stone foundations?

Coral stone absorbs moisture and cracks over time. The external residual band is applied thicker and monitored more frequently because its effectiveness on old stone is shorter than on modern concrete, requiring more careful management.

Are the old cracks in the historic stone treated separately?

The historical cracks in the stone are natural shelters for insects and small reptiles. The programme includes targeted spraying of these cracks in addition to the general exterior band.

How often are monitoring points checked in the crowded old quarter?

Harat Al Yaman requires more frequent visits because population density and chronic dampness accelerate insect activity. Visits follow what the monitoring points reveal, not a fixed calendar.

Are there risks to treating the foundation near old underground water tanks?

Old cisterns that may lie beneath houses are located first. Treatment is placed at a safe distance and products are chosen for safety near water storage, ensuring no contamination reaches stored water.

How much does preventive treatment in Harat Al Yaman 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 Harat Al Yaman.