Smoke test following a rat infiltration: detect the entrances!
Did you know that rats generally infiltrate homes and businesses following a degradation or break in sewer pipes? Indeed, since sewers are places where rats like to settle, it is not uncommon to see them pass through a crack in the pipe to sneak into your home or business.
Detect rodent entries using a rat smoke test
To determine if rats or mice enter your home (or business) through the pipes of your sewer system (cracks, holes, breaks in joints, connections or pipes), a rat smoke test is a quick and very effective solution.
Nova Extermination technicians will inject a smoke under pressure into the drainage systems and sewer pipes, in order to find the failure. It is then possible to find out if a broken piece of pipe or a crack is allowing rats to infiltrate. This process (rat smoke test) also makes it possible to detect water leaks and gas infiltration.
Smoke is not dangerous or toxic to humans, animals or plants. It does not leave residues or stains. The smoke has a particular smell to make it easier to detect, but this smell only lasts a few minutes.
Where our fumigation diagnostics are most in demand
The smoke test reveals the airtightness defects in the envelope, and our request focuses on older buildings. In Longueuil and Saint-Hubert, the brick triplexes in Old Longueuil produce the most positive tests at the soffits and roof-wall junctions. In Brossard and the southern South Shore, the test mainly targets the junctions of houses in sectors A to D, which are older. The South Shore smoke test is a popular service before the real estate purchase to validate the envelope. In Boucherville and the surrounding area, Old Boucherville regularly requests service on its eighteenth-century heritage houses. In Saint-Jean-sur-Richelieu (Richelieu Valley), the stone buildings of the fort and the historic district often provide a revealing diagnosis. In Saint-Hyacinthe and the Maskoutains, the heritage downtown around the cathedral is the focus of requests.
Did you know?
Rats are extremely intelligent and can dig tunnels for many miles without getting lost!
KEEP THEM FROM COMING BACK!
After identifying the cracks through which rats sneak into your home, we make sure that they are well sealed so that they don’t come back anytime soon. Our caulking solutions are particularly effective in solving your rat infestation problem permanently.
A SIMPLE AND EFFECTIVE SOLUTION
The rat smoke test is the first step in an extermination to solve your rat problem permanently. Among other things, the rat smoke test:
Detects even the smallest cracks
Does not require unnecessary and expensive work
Offers reliable and accurate diagnosis
The rat smoke test is a simple and ingenious process that is very effective in identifying the main cause of the presence of rats in your home or business.
RAPID EXTERMINATION OF RATS ON THE SOUTH SHORE
Our extermination company on the South Shore will be able to perform a rat smoke test as well as the capture of rats that have infiltrated your home or business, at a very affordable price. Our products and methods (trap cages, traps, poison) comply with the standards of the Ministry of the Environment. Our work is carried out according to the standards in force.

Our team has many years of experience in rat smoke testing and rat extermination on the South Shore. We use the necessary equipment for the complete and lasting rat control of your home or business.
Even if you have only seen one rat, you should know that it can reproduce very quickly and that it is better to exterminate it quickly and locate the others. If there is one, there are several!
Contact us for more information
Contact our team of specialized technicians immediately at 1-844-880-6682 or at the 514-MON-NOVA emergency service. Nova Extermination is a certified rodent exterminator, which holds all the necessary permits, licenses, and insurance for the capture and extermination of rats.
We cover all cities on the South Shore and we travel quickly for a rat smoke test and an emergency rat extermination.
Frequently Asked Questions: Smoke Test
What is the smoke test to detect intrusions?
The smoke test involves blowing non-toxic smoke into drains and plumbing to reveal cracks, breaches, and faulty fittings that rats can climb up through. The smoke escapes visibly at the leak points, which makes it possible to locate them precisely. Our technicians use it on the South Shore and in Montérégie.
Why use a rat smoke test?
Rats often use cracked pipes and drains to enter buildings through the basement or toilets. The smoke test highlights these hidden pathways that visual inspection does not reveal. We can then repair the breaches to block access to Longueuil or Brossard.
Is the smoke test safe for occupants?
Yes, the smoke used is designed to be non-toxic and dissipates quickly once the inspection is complete. Our technicians carry out the test according to the safety standards in force and inform you of the precautions to follow. Its occasional presence in a room simply indicates a vanishing point to be corrected.
What do you do after locating the leak points?
Once the breaches have been identified, we recommend the repairs or seals required to block rat access to the pipes. The test thus guides targeted interventions rather than blind work. Each situation is evaluated on a case-by-case basis in Boucherville or Saint-Hubert.
Does the smoke test guarantee to find all intrusions?
The test effectively reveals accessible leaks, but we do not guarantee to detect every defect in every plumbing configuration. Blocked or isolated sections can limit the flow of smoke. Our technicians interpret the results on a case-by-case basis to guide the next steps.
How much does a smoke test cost?
The price is established on the basis of an evaluation, depending on the extent of the network to be tested and the accessibility of the drains. An evaluation in Montérégie makes it possible to clarify the mandate. It is a paid service carried out by certified technicians.