Décontamination

Decontamination experts on the South Shore of Montreal

Decontamination service following an extermination of insects or rodents

As a pest decontamination company, we know that it is essential to carry out the complete decontamination of your home or business after an extermination, to protect yourself against diseases.

Because even if all the insects are dead, their droppings and germs remain on your surfaces. The same goes for mice and rats, which leave germs in their urine and feces that can transmit very dangerous diseases.

Decontamination, an essential and too often neglected step for exterminators

To protect yourself against diseases transmitted to humans by insects and rodents, it is important to disinfect places infested by intruders such as rats, mice or other unwanted species that have infested your home or business.
Too often forgotten by exterminators, parasite decontamination is nevertheless crucial in any extermination process.

All species of wild animals, rodents or insects are potential carriers of diseases, viruses or parasites. Their droppings also pollute the air, which can cause serious health problems for the occupants of your home in the medium term.

Mice, rats, and bats carry diseases such as hantavirus, a condition that causes serious lung problems. Simply sweeping or vacuuming after extermination is not enough to remove harmful particles from the ambient air.
This is why it is essential that the premises be restored to their initial state, sanitary and free of all contaminants. Our decontamination company is the solution.

Scope of action for post-infestation decontamination

The decontamination protocols require sustained work on the entire immediate South Shore and the Richelieu Valley. In Longueuil and the South Shore, we mainly decontaminate the attics of triplexes in Old Longueuil contaminated by bat or raccoon droppings. Our service in Brossard mainly treats finished basements affected by prolonged mouse infestations. South Shore decontamination mobilizes our technicians in complete Tyvek equipment on sites of a minimum of one day. In Boucherville, the heritage building on De Montarville Street concentrates histoplasmosis interventions. To the east, we frequently work in Saint-Jean-sur-Richelieu and surrounding areas on buildings in downtown and the former Iberville district. In Saint-Hyacinthe (Maskoutains), regional agri-food plants and CHSLDs ask us for HACCP protocols for post-rodents.

Post-Infestation Decontamination Protocol: Targeted Phases and Pathogens

Decontamination after infestation follows a five-phase protocol, governed by INSPQ recommendations and CNESST standards on bioaerosols. The first phase is the physical containment of the affected area with 6 mil plastic barriers and HEPA negative pressure, which is essential as soon as rodent or bat excrement is treated. The second phase is the HEPA suction of solids with absolute filtration of 0.3 microns, without any sweeping or blowing that would suspend pathogenic particles. The third phase is the application of a virucidal and fungicidal disinfectant registered by Health Canada (DIN active), with a minimum contact time of 10 minutes. The fourth phase is the removal, double bagging and disposal of contaminated materials according to MELCC’s HHW protocols. The fifth phase is the final decontamination of the surfaces with ATP-meter for validation.

The pathogens targeted vary according to the contaminating species. Bat droppings carry Histoplasma capsulatum, a fungus responsible for pulmonary histoplasmosis, which can be serious. Raccoon droppings concentrate the eggs of Baylisascaris procyonis, a zoonotic roundworm that can cause irreversible neurological damage if ingested. The excrement of rodents (mice, rats, field mice) carries hantavirus, salmonellosis, leptospirosis and haemorrhagic fever. The nests of pigeons and starlings concentrate Cryptococcus neoformans and Chlamydophila psittaci. Bird and rodent nest mites persist for several months and can cause dermatitis and asthma. That’s why our technicians wear full protective equipment: class 2 Tyvek suit, P100 half mask, goggles, lined nitrile gloves.

Pathogens by species: health risks and decontamination requirements

pathogen PPE
Species MainRoute of transmission MinimumValidated disinfectant
BatHistoplasma capsulatumInhalation dustP100 + Tyvek class 2Phenol 5%, hypochlorite 1%
RaccoonBaylisascaris procyonisIngestion Resistant EggsP100 + Nitrile Gloves LinedSteam 80°C, Propane Burning
Mice, rats,Hantavirus, Salmonellainhalation, mucosal contactP100 + gogglesHypochlorite 1%, ammonium quat.
Pigeons, StarlingsCryptococcus, ChlamydophilaInhalation, Skin ContactP100 +Glutaraldehyde 2% Dry Suit, Hypochlorite
Field mice, voles,Leptospira, Borrelia, Urine contact, bite,P100 ticks + waterproof glovesHypochlorite 1%, alcohol 70%

Decontamination: pricing and deadlines

In Quebec, residential decontamination after infestation is based on an evaluation, depending on the area affected, the pathogen involved and the accessibility of the area. An attic decontamination after a bat colony (10 to 30 m²) varies on evaluation, due to the histoplasmosis requirement and the complete removal of the contaminated insulation. A finished basement after prolonged infestation of mice (30 to 80 m²) is estimated to be high. A crawl space with a raccoon’s nest (5 to 15 m²) is a matter of evaluation, due to the risk of Baylisascaris. The procedure typically lasts between 1 and 4 days depending on the extent. We provide a detailed decontamination report with before/after photos, validation ATP-meter and certificate of compliance that can be used with home insurance companies, which often cover these costs under the heading of vermin damage.

Did you know?

If there have been animals in your home and the place has not been contaminated, all the other animals can sense their former presence and return to the premises.

Smell problem?

Sometimes people call us with an odour problem. Indeed, the passage of a skunk or the smell of putrefaction due to an unresolved extermination problem, can permeate a house for a long time. And this can be excessively unpleasant.


So we have created our own deodorization technique: we use specialized products and install air exchanger systems. Our decontamination company does not leave you with odor problems. We can solve all your problems following a rodent or skunk infestation.

AFTER THE EXTERMINATION AND CAULKING? DECONTAMINATION

Once all the undesirables have been exterminated from the house, and all the entrances have been caulked, it’s time to clean up. Our exterminator technicians have the knowledge and tools necessary to carry out the decontamination effectively and safely. We are able to decontaminate all the rooms in your home, including those that are more difficult to access. We use specialized products, approved techniques, quality tools, all orchestrated by certified technicians!


Our company holds all the necessary permits, licenses and insurance for the professional extermination and decontamination of insects, mice and rats. Our pest decontamination techniques comply with the regulations of the Ministry of the Environment.

Contact us for more information

Contact Nova Extermination, a pest decontamination company on the South Shore that will decontaminate your home or business, if your previous service provider did not do so.

The pest decontamination service will still be offered by our exterminators after all our extermination and caulking work. Contact us to benefit from the services of a decontamination company on the South Shore of Montreal that offers you more.

Contact us at 1-844-880-6682 for quick pest decontamination services, or at 514-MON-NOVA to contact the emergency service or send us an email explaining your situation.

Frequently Asked Questions: Decontamination

What does Nova Extermination’s decontamination service consist of?

Decontamination includes the removal of soiled materials, sanitation and disinfection of premises affected by an animal presence or infestation. It aims to eliminate feces, urine, nests and contaminants that threaten health. Our technicians offer it for attics, crawl spaces and other spaces on the South Shore and in Montérégie.

When is decontamination necessary?

It is necessary after a rodent infestation, occupation by wild animals or an accumulation of excrement in an inhabited or technical space. Traces of urine, persistent odors, and soiled insulation are clear signals. An inspection determines the scope of work in Longueuil or Brossard.

What steps does a complete decontamination entail?

It typically includes removing soiled materials and materials, vacuuming excrement, disinfecting surfaces with approved products, and often closing entry points. Depending on the case, the insulation removed is replaced to restore the building’s performance. Each project is tailored to the nature of the contamination.

Does decontamination really clean the air and surfaces?

The treatment significantly reduces contaminants, allergens and odours on surfaces and in the ambient air. The magnitude of the result depends on the degree of contamination and whether or not the unrecoverable material is removed. Our technicians target the areas to be treated on a case-by-case basis.

Do you offer a warranty on decontamination?

We aim for sustainable results evaluated according to each situation, without promising absolute guarantees on all our treatments. We do not take care of the insalubrity or general dilapidation of a poorly maintained building beyond the treated areas. Our technicians specify the exact scope of the intervention.

How much does a decontamination service cost?

The price is established on the basis of an evaluation, depending on the surface area, the volume of material to be removed and the degree of contamination. An inspection in Montérégie allows for a fair estimate. It is a paid service carried out by RBQ certified technicians.

Nous contacter

Faire appel à Nova extermination !

Nos techniciens certifiés interviennent rapidement pour éliminer de rongeurs, insectes, punaises de lit et animaux nuisibles, en résidentiel et commercial. Service disponible 24/7.

Besoin de protéger votre propriété avant que les nuisibles n'arrivent à Montréal?

Nos techniciens certifiés calfeutrent les points d’entrée, inspectent votre bâtiment et bloquent les infestations à la source. Solutions durables, garanties et sécuritaires. Inspection 7j/7.

Foire aux questions

La prévention est au cœur de l'approche de Nova Extermination. Un service complet ne s'arrête pas à l'élimination des nuisibles : il comprend des mesures durables pour empêcher une nouvelle infestation dans votre propriété de la Rive-Sud ou de Montréal.

Comment puis-je empêcher les souris et les rats d'entrer chez moi ?

La prévention est au cœur de l'approche de Nova Extermination. Un service complet ne s'arrête pas à l'élimination des nuisibles : il comprend des mesures durables pour empêcher une nouvelle infestation dans votre propriété de la Rive-Sud ou de Montréal.

Qu'est-ce que le service de calfeutrage de Nova Extermination ?

Le calfeutrage consiste à sceller les fissures, les trous et les points d'entrée par lesquels les rongeurs et les petits insectes pénètrent dans un bâtiment. Nous sommes l'une des rares entreprises à offrir le calfeutrage des trous de souris. Nos techniciens inspectent aussi les éléments du toit comme la cheminée, l'évent de plomberie et le ventilateur, et installent au besoin des grilles de protection. Nous vérifions également les soffites pour empêcher les rongeurs d'atteindre l'entretoit.

À quelle fréquence devrais-je faire inspecter ma propriété ?

Pour la plupart des résidences de Montréal et de la Rive-Sud, une inspection annuelle suffit à détecter les signes précoces d'infestation. Les commerces, les immeubles à logements et les bâtiments situés près de zones boisées ou de plans d'eau peuvent bénéficier d'inspections plus fréquentes. Nos techniciens peuvent établir un calendrier de surveillance adapté à votre type de bâtiment et à votre niveau de risque.

Quels sont les signes précoces d'une infestation ?

Les signaux les plus courants incluent les excréments, les bruits de grattement dans les murs ou le plafond, les traces de rongement sur les emballages ou les fils électriques, les odeurs inhabituelles et la présence d'insectes vivants ou morts. Détecter ces signes tôt permet une intervention rapide et moins coûteuse. En cas de doute, un technicien de Nova Extermination peut effectuer une inspection visuelle de votre domicile sur la Rive-Sud.

Le test de fumée aide-t-il à prévenir les infestations de rats ?

Oui. Le test de fumée est une technique que nos exterminateurs utilisent pour repérer les points faibles du réseau d'égouts. Les rats empruntent parfois des conduites d'égout fissurées pour s'introduire dans un bâtiment. En localisant ces fissures, nous pouvons recommander les réparations nécessaires et empêcher le retour des rats, une mesure préventive précieuse pour les propriétés de Montréal et de la Rive-Sud.

L'humidité favorise-t-elle la présence de nuisibles ?

Absolument. De nombreux insectes et rongeurs recherchent les environnements humides pour s'établir et se nourrir. Maintenir un faible taux d'humidité dans les sous-sols, les vides sanitaires et les salles de bain réduit considérablement l'attrait de votre propriété pour les nuisibles. Nos techniciens peuvent identifier les zones à risque et vous suggérer des correctifs simples à mettre en place pour un environnement moins propice aux infestations.

Coordonnées

Adresse

422 Rue Edmond, Saint-Amable, QC J0L 1N0, Canada

Téléphone

+1 514-666-6682

Demandez votre inspection

Nova extermination

Nova extermination est l’exterminateur qui vous permettra de vous débarrasser de manière efficace de votre infestation ou invasion à domicile. Couvrant toute la Rive-Sud de Montréal nous vous offrons des services d’extermination pour les animaux et insectes suivants:

  • Dératisation de rats et
  • souris
  • Écureuils
  • Moufettes
  • Marmotte
  • Ratons laveurs
  • Chauves-souris
  • Nid d’abeilles

Coordonnées

422 Rue Edmond, Saint-Amable, QC J0L 1N0, Canada

Téléphone: +1 514-666-6682

Courriel: [email protected]

Afin de nous joindre,
veuillez remplir le formulaire ci-dessous