Disinfection in Harat Al Baharah, 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 Baharah

Buildings in Harat Al Baharah face constant problems with rust, mould and high moisture, paint and metals corrode rapidly from salt air and the seeping dampness that never dries. The method is set out in full on Disinfection in detail.

The first reason

Salt particles in the air carry contamination deep into homes

Coastal air carries salt crystals and high humidity, which enter homes through every crack and opening. Salt deposits on surfaces and carries sea bacteria and fungi with it, so disinfection must focus on exterior surfaces, windows and doors first before the interior can be treated effectively.

The second reason

Permanent humidity means walls never dry

In Thuwal relative humidity stays above 70 percent all year, which means walls never dry completely. Bacteria and fungi thrive on this permanent moisture, black mould spreads across walls and ceilings continuously. Disinfectant loses effectiveness quickly in high humidity and requires specialist formulation.

The third reason

Marine deposits shield contamination from the disinfectant

Organic material from the sea deposits on surfaces and windows, and this layer protects bacteria beneath it from disinfectant. Deep cleaning must remove the salt and organic layer first, and a specialist disinfectant for coastal environments is required because standard products do not penetrate salt-laden deposits.

Landmarks of Harat Al Baharah

Harat Al Baharah stands directly beside the old Thuwal harbour and along Thuwal corniche maintained by Saudi Aramco, and the work focuses on the closely built homes along the main street running between the harbour and the waterfront.

Thuwal Harbour
Thuwal Corniche
Al Shati Mosque
King Abdullah University of Science and Technology

Before treatment

What we look at before the product is chosen

The quarter sits close to the old Thuwal harbour and the corniche maintained by Saudi Aramco, surrounded by open land and the irrigated green campus of King Abdullah University of Science and Technology, and relative humidity never falls below 70 percent through the year.

The touch points

Touch points in the quarter include doors and windows and exterior walls and surfaces, all are directly exposed to sea wind and salt, and mechanical cleaning is necessary before disinfection can be effective.

Porous surfaces

Porous surfaces are primarily the old stone and clay used in building Harat Al Baharah, which absorbs salt water rapidly and deposits salt deep in the pores requiring mechanical removal before treatment.

The finish itself

The finish is simple: plain paint over stone, the paint is old and flaked away in many places exposing bare stone, which corrodes from salt and moisture.

The filter and grille of an indoor air conditioning unit

The air conditioning unit

Air conditioning units in the quarter are old and inefficient, and air drawn from the sea carries salt and contaminants, filters require continuous cleaning and may develop odours.

Floor traps

Floor traps in old Harat Al Baharah are sometimes damaged, salt water leaks from walls through cracks, and smells return from underground.

A metal handrail in an apartment stairwell

Shared entrances and stairs

The narrow lanes are exposed to the sea and stay damp constantly, seawater seeps into foundations from the low lying ground near the corniche.

How we work

1
Walk the space and list the surfaces

We go through the rooms and mark the touch points, the porous surfaces and the finishes, then ask what prompted the call: illness at home, moving into a new place, building work, or a smell that arrived out of nowhere.
2
Clean what we are about to treat

We take the film of dust and grease off the surfaces that are in scope, so the product reaches the surface itself. This is preparation for the treatment, not general house cleaning.
3
Apply it, and hold the contact time

Hand work on the touch points, a product matched to each surface, and the surface left visibly wet for as long as that material needs before it is dried off. Cold fogging comes last, for what a cloth cannot reach.
4
Ventilate and hand back

We open the place up, rinse food preparation surfaces with water, and tell you when each room goes back into use. We give you that timing on the call, because it changes with the product and the space.

What a disinfection visit includes

A surface and touch point survey

What gets treated, and with what, settled before anything is opened.
Soil off first, then the disinfectant

The greasy film comes off first, then a product that stays wet for the contact time it needs.
Floor traps and the air conditioning drain

Floor traps, sink outlets and the drain tray, which is where most smells actually begin.
Cold fogging for the space

For upward faces and corners a cloth never reaches, done as the last thing before we leave a room.
Ventilation and use instructions

What gets rinsed with water, what is left alone, and when each room goes back into use.
A scheduled repeat when it is needed

For shared entrances and places people pass through every day, because a disinfectant leaves nothing behind to stop the next contact.

What is different about Thuwal Sub-Municipality

Thuwal sub municipality is a small fishing town on the Red Sea coast at the far northern edge of Jeddah governorate. Its old quarters are closely packed popular and mud built houses on narrow streets, with newer low rise concrete homes from the town's development programme beside them. Sea humidity stays high all year, the fishing harbour and the corniche form its seafront, water arrives by tanker so household tanks are everywhere, and the town sits on Wadi Thuwal, ringed by open ground and by the irrigated green campus of King Abdullah University of Science and Technology.

Questions about this district

The building in Thuwal is new but black mould appears very quickly. Why?

Coastal air carries high humidity and marine contaminants, and mould thrives in these conditions even in new buildings. Metals, timber and paint corrode rapidly from salt and moisture.

Paint peels off the walls in Harat Al Baharah very quickly. Is this salt damage?

Yes, salt in the air penetrates behind the paint and corrodes the layer underneath. Standard paint cannot survive coastal conditions, specialist salt resistant and moisture resistant paint is required.

After cleaning the windows, salt returns within days. How do we prevent this?

Salt returns directly from the air, it cannot be prevented. Window cleaning every week is necessary in Thuwal, and disinfection should follow once surfaces are clean. Specialist disinfectant for coastal environments tolerates salt better than standard products.

Is disinfection in Harat Al Baharah different from disinfection inland?

Very different, humidity and salt change everything. Disinfectant must be higher concentration in coastal conditions, contact time must be longer, and thorough pre cleaning becomes more important than the disinfectant itself.

High humidity in the home causes strange smells. What is the solution?

Smells originate in aerobic and anaerobic bacteria that thrive in high humidity, and may come from salt water seeping through windows. Better ventilation and humidity reduction must precede disinfection.

Will disinfection prevent mould returning in Thuwal?

No, mould returns if humidity stays high. Disinfection removes the mould present now, but coastal humidity brings fresh spores rapidly. Scheduled disinfection every month or two is necessary in coastal conditions.

How much does disinfection in Harat Al Baharah 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 Baharah.