Warehouse and Godown Fumigation

Whole space or a single stack

There are two ways to fumigate a store and they suit different situations. A whole space treatment seals the building itself and treats everything in it at once, including the structure, the racking and the residual pockets of old product that keep the cycle going. A stack treatment seals a specific block of goods under gas-proof sheeting and treats only that, leaving the rest of the building in use.

Stack work is what most operating warehouses actually want, because it does not stop the business. Whole space work is the stronger option when the infestation is in the building rather than in one consignment, and it is usually timed for a shutdown.

How the treatment works

Either way, the principle is the same as any fumigation: a gas fills the sealed volume and moves through the goods to reach insects inside packaging and inside the product. Sheeting is laid and weighted down at the edges so the envelope holds, or the building itself is sealed at doors, vents and service penetrations.

The seal is checked before dosing. A stack that lifts at one corner overnight will lose concentration through that corner, and the treatment underneath it will be worthless.

Safety and vacancy

A whole space treatment requires the building to be empty of people for the full exposure period, and that includes offices attached to the store and anyone who might come in to collect something. Adjoining occupied units need to be considered before the job is agreed, not on the day.

A stack treatment keeps people out of a defined zone around the sheeted block rather than out of the whole building. We agree that zone with your site manager, placard it, and keep it controlled until ventilation is finished.

How long it takes

Sealing a stack is a matter of hours. Sealing a building takes longer and depends heavily on how many openings it has. Exposure runs for a set period after that, and ventilation follows. For a whole space job, work on the basis that the building is out of use for more than one day, and plan the treatment into a shutdown rather than around a working shift.

What you receive

A written record of what was sealed, what was treated, when the exposure period ran and when the space was ventilated and released. For recurring storage we also set out what we saw during the job: where the residual product was sitting, which pallets were carrying insects, and what would reduce the chance of the same problem returning.

What you need to prepare

Clear the access routes, tell us where the services run, and identify anything in the building that must not be treated. Confirm who is responsible for locking the building and who holds the keys during the exposure period. If the store adjoins another business, tell us before the booking rather than when we arrive.