A possum smell in the roof usually comes from urine that has soaked into insulation and timber over weeks or months, rather than anything left on the surface, which is why a spray around the manhole rarely does much on its own for a Wishart home.
The crew we book starts by finding the actual source, working from the entry point and the area where droppings have built up, since that is almost always where the smell is strongest. Soiled insulation is usually removed rather than treated in place, because it holds onto moisture and odour no matter what is applied to it. Timber surfaces nearby are then treated directly, aiming at the material that has actually absorbed the smell.
How long the smell takes to settle depends on how long the possum was living there and how much insulation needs to come out. A fresh case in a Wishart roof, caught within a week or two, usually clears up quicker than one that has been going on for months, where the smell has had longer to work into the timber and any ceiling lining nearby. The crew will give you a realistic sense of timing on the day, rather than a set number that may not suit your particular roof.
Odour treatment is often booked alongside droppings and urine cleanup for Wishart homes, since the two jobs tend to go together once a possum has been in a roof for more than a few weeks. Doing both in one visit usually works out simpler than trying to deal with the smell on its own first.
- Source of the odour located first, not just masked over
- Soiled insulation removed where it cannot be treated in place
- Timber and remaining materials treated directly
- A realistic idea of timing given on the day
If a smell is lingering in your Wishart roof after a possum has gone, call 07 3543 7764 to book odour treatment.