Disinfection is the step that comes after cleaning, not instead of it. A room is cleaned to remove soil and residue, and it is disinfected to reduce what survives on the surfaces once that soil is gone. If the two are done in the wrong order, the disinfectant lands on dirt rather than on the surface, and most of it is wasted. That is the single most common mistake we are called in to correct in Beirut offices and clinics.
When a Lebanese building actually needs disinfection
Most of our disinfection work in Beirut and Mount Lebanon falls into a small number of situations, and it is worth being honest that outside them a normal cleaning routine is usually enough.
Clinics, dental practices and laboratories book it on a schedule because their treatment rooms turn over all day. Nurseries and schools ask for it at the start of a term and after an outbreak has gone through a class. Offices ask for it when a floor has been shut for a while, or when a shared kitchen and washroom serve far more people than the building was designed for. Restaurants and food premises ask for it after a deep clean, before an inspection, or when a unit is being handed over to a new operator. And a great many of our residential calls come from flats that have stood empty for months, which is a very common situation in Lebanon right now, or from a family that has had illness move through the household.
What we actually do on site
The visit starts with a walk through the space so we know what we are treating and what has to be protected. Electronics, open food, plants and aquariums are covered or removed before anything is applied.
Surfaces that people touch constantly are treated directly, because those are the ones that matter: door handles, light switches, taps, handrails, desk edges, keyboards, lift buttons and the underside of shared tables. Wiping these properly with the right contact time does more than any amount of spraying into the air.
For the air and for the surfaces that a cloth cannot reach, we use ULV fogging, which breaks the solution into droplets fine enough to stay suspended and settle evenly. Fogging is a distribution method, not a magic step. It works when the product is right for the space and when the room is left closed for the full contact time the product requires, which is usually somewhere between fifteen and thirty minutes.
Afterwards the space is ventilated before anyone goes back in. We tell you how long that takes before we start, so you can plan the shift or the school day around it rather than after it.
Product choice is the part that matters most
In Lebanon, household and public health products are licensed by the Ministry of Public Health, under the framework set by Decree 5100 of 1982, while agricultural pesticides sit with the Ministry of Agriculture. The two are not interchangeable, and the difference is not academic.
Aluminium and zinc phosphide are banned by the Ministry of Public Health for pest control in residential and populated areas nationwide, and added to the list of prohibited imports. They are fumigants meant for stored crops, and an agricultural licence authorises nobody to use them where people live.
A fumigant is not a disinfectant and it has no place in an occupied building. When you book disinfection from anyone in Lebanon, ask which ministry licensed the company for the work being done in your home or your premises, and ask to see it. There is no public register you can look a company up in, so the certificate itself is the only thing that answers the question.
Disinfection and pest control are different jobs
People often ask for one and mean the other. Disinfection reduces what is living on surfaces and in the air at that moment. It does nothing about cockroaches in a wall void, rodents behind a kitchen unit, or mosquitoes breeding in a water tank, and it will not stop any of them coming back.
The two do meet in one place, which is food premises. The Ministry of Public Health food inspection checklist asks food businesses to hold certificates of insect and rodent treatment carried out every three to six months by a licensed private company. Disinfection is a separate service from that, and it does not satisfy the pest control requirement. If you run a restaurant in Beirut and you want one visit to cover both, say so when you book, and we will schedule them together.
How to prepare before we arrive
Clean first if the space needs it. Clear the surfaces you want treated. Cover or remove food, medicines and anything that will be in the way. Arrange for the room to stay empty for the contact time plus ventilation, and let us know in advance if there is anyone in the building with a respiratory condition, or a pet that cannot be moved, so the product and the timing are chosen around them.
Where we work
We cover Beirut, including Achrafieh, Hamra, Ras Beirut, Verdun, Badaro, Gemmayzeh and Mar Mikhael, along with the Metn, Baabda and Keserwan, and we travel further for commercial work. Call +961 3 265900 or book an inspection and tell us the size of the space and what it is used for. That is usually enough for us to tell you on the phone whether disinfection is the right answer, or whether what you are describing is a pest problem wearing a different name.
