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Dead animal smell in Canton
A smell and nothing to see is the most common way one of these starts. It is a solvable problem, and it runs in a particular order.
Which room, when it started, whether it changes through the day.
How the search runs
Most of that happens without touching the house. It is why a description over the phone is worth giving properly: half the search is reasoning about the building, and that part can start before anyone arrives.
What the timing tells you
A smell that appeared three days ago and is getting stronger is an animal that died recently, and it will keep climbing for a while yet. A smell that has been constant for three weeks is past its peak and is now coming from saturated material as much as from the carcass. Those are different jobs at the point of removal, and the second one is why taking the animal out sometimes does not finish it.
Whatever it was lying on comes away with it. Insulation, dust, cardboard, soil under a deck board. Left in place, that material carries on producing the smell for weeks after the animal is gone, and it is the usual reason a house still smells after someone has already been out and removed something.
Where the search ends inside a structure, what can and cannot be reached sets out the rest. The Canton removal service covers this search as well as the removal that follows it.
Questions about the smell
How long does the smell last if nothing is done?
It depends on the size of the animal and how dry the space is, and the range runs from about two weeks to a couple of months. Nobody can give you a date. What can be said is that it climbs before it falls, so the early days are not a guide to how bad it gets.
Will an air freshener or a fogger deal with it?
They work on the air in the room. The animal is not in the air in the room. You can make a house liveable for an evening that way, which is sometimes worth doing, but the smell comes back on the same schedule it would have anyway.
Why is it worse in the evening?
Warmth and moving air. A structure that heats up through the day pushes more out of a cavity, and a heating or cooling system running redistributes it. Rising and falling across the day is ordinary behavior for one of these, and it is not a sign the problem is resolving itself.
It faded after a week. Is it over?
It might be, where the animal was small and the space around it stays dry. Fading also happens when a carcass dries out while the material underneath it stays saturated, and that returns in the first warm spell. If it comes back, it did not finish.
What if the source is never found?
That is an outcome worth naming in advance. Some cavities give nothing away, and after a reasonable search the honest answer is a probable location rather than a certain one. You should know which of those you have been given.