Noises in the Walls at Night: Mouse, Rat, Squirrel, or Something Else?
The time of the noise, its height in the wall, and its rhythm are almost always enough to identify the animal. Here is how to read those three clues.
Read →Our mouse & Rat Extermination protocol, step by step
The free inspection identifies the species, the extent, and the entry points, and leads to a written quote detailing products, method, schedule, and guarantee. Treatment follows, applied with Health Canada-approved products and a preparation whose instructions are given to you in advance — the part clients most underestimate, and the one that separates a successful treatment from one that must be redone. One or two follow-up visits then verify the outcome in the following weeks, with free touch-ups if activity persists. In Montréal-Nord, we schedule those follow-ups against the species' reproductive cycle rather than on a fixed date.
Warning signs to watch for in Boulevard Pie-IX and Nord-Est
On this type of property, the first clues rarely appear at eye level. Look at baseboards, behind built-in furniture, under sinks, at basement rim joists, and where pipes pass through. A night-time noise inside a partition, an unusual persistent odour, dark trails along a wall, or granular debris near a crack are reliable signals. In Montréal-Nord, the aggravating factor remains shared plumbing stacks and dropped ceilings in these blocks, which connect every unit in a stairwell and make unit-by-unit treatment ineffective: what shows up in your home often originates next door, and an inspection limited to your unit alone will miss it. Reporting early cuts both the cost and the number of visits.
Preventing a return after treatment
Reinfestation is almost never a product failure: it is an entry point left open or an attraction source never removed. After a mouse & Rat Extermination treatment in Montréal-Nord, we hand over a list of fixes ranked by priority and cost, separating what you can do yourself from what requires a trade. For rental buildings and businesses, we add a dated intervention log — a document regularly required during a municipal inspection or a tenant dispute. Property owners across Island of Montreal can also subscribe to a seasonal preventive program with scheduled visits.
Access, scheduling, and being on site in Montréal-Nord
A failed mouse & Rat Extermination treatment is often a treatment cut short. The dwelling must be empty of occupants and pets during application and for the indicated drying time — generally four to six hours for a chemical treatment. Aquariums must be covered and their pumps switched off. We ask for clear access to every room, including closets and the basement. In Montréal-Nord, a significant share of missed appointments comes down to a key that could not be found or an occupant who had to come back: those visits are billed anyway, so they are worth avoiding. For wasp nests and commercial work we operate in the evening or before opening — the only window when the whole colony is present, or when food preparation areas are clear.
