{"id":32579,"date":"2026-05-19T17:28:57","date_gmt":"2026-05-19T21:28:57","guid":{"rendered":"https:\/\/www.novaextermination.com\/prevention\/disinfection-after-infestation\/"},"modified":"2026-07-20T12:24:47","modified_gmt":"2026-07-20T16:24:47","slug":"disinfection-after-infestation","status":"publish","type":"prevention","link":"https:\/\/www.novaextermination.com\/en\/prevention\/disinfection-after-infestation\/","title":{"rendered":"Disinfection after infestation"},"content":{"rendered":"\n<!--NOVA_RATING_START--><div class=\"nova-rating-src\" hidden=\"\"><a href=\"https:\/\/search.google.com\/local\/reviews?placeid=ChIJrwH6caP-yEwR6PfHI875QhI\" target=\"_blank\" rel=\"noopener nofollow\" class=\"nova-rating-link\"><span class=\"rstars\">\u2605\u2605\u2605\u2605\u2605<\/span><span class=\"rtext\">4.9\/5 \u2022 203 Google reviews<\/span><\/a><\/div><style>.nova-rating-hero<span>text-align:center;margin:12px auto 4px;position:relative;z-index:3.nova-rating-hero .nova-rating-link<span>text-decoration:none;display:inline-block.nova-rating-hero .rstars<span>font-size:27px;letter-spacing:4px;line-height:1;filter:drop-shadow(0 1px 3px rgba(0,0,0,.5)).nova-rating-hero .rstars,.nova-hero-live .nova-rating-hero .rstars<span>color:#FBBC05!important.nova-rating-hero .rtext<span>display:block;color:#fff;font-weight:700;font-size:16px;margin-top:5px;text-shadow:0 1px 5px rgba(0,0,0,.6)<\/style><script>(function(){var S=document.querySelectorAll('.nova-rating-src');var node=S[S.length-1];if(!node)return;function init()<span>if(node.__rdone)return;var h1=document.querySelector('h1');if(!h1)return;node.__rdone=1;var b=document.createElement('div');b.className='nova-rating-hero';b.innerHTML=node.innerHTML;var anchor=h1.closest('.elementor-widget')||h1;anchor.parentNode.insertBefore(b,anchor.nextSibling);if(document.readyState!=='loading')init();else document.addEventListener('DOMContentLoaded',init);window.addEventListener('load',init);})();<\/script><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"D\u00e9sinfection apr\u00e8s infestation\", \"description\": \"Service d'extermination : D\u00e9sinfection apr\u00e8s infestation. Nova Extermination, exterminateur certifie sur la Rive-Sud de Montreal et en Monteregie.\", \"brand\": <span>\"@type\": \"Brand\", \"name\": \"Nova Extermination\", \"aggregateRating\": <span>\"@type\": \"AggregateRating\", \"ratingValue\": \"4.9\", \"reviewCount\": \"203\", \"bestRating\": \"5\", \"worstRating\": \"1\"<\/script><!--NOVA_RATING_END-->\n<p>When a wild animal or rodents have occupied an attic, crawl space or room, the contaminated surfaces and insulation harbor pathogens that remain virulent for several months. Cleaning with soap and water is insufficient and can even spread contaminants by aerosol. Professional decontamination eliminates the biological cause before it becomes a health problem.  <\/p>\n<p>Nova Extermination carries out certified decontamination on the South Shore, with professional equipment and biocides approved by Health Canada. License RBQ 5734 75930 01. <\/p>\n<p><strong>Areas concerned:<\/strong> any area that has been treated with an infestation (rodents, insects, animals), before or after caulking and reconstruction work.<\/p>\n<h2>What pathogens are present and why it matters<\/h2>\n<p>Residual pathogens (bacteria, viruses, fungi), allergens (dust mites, insect debris), persistent odours, cross-contamination to the rest of the habitat.<\/p>\n<p>These pathogens remain dangerous long after the animals have left: hantaviruses survive for several days in aerosols, leptospires for weeks in a humid environment, roundworm eggs for months. Particularly at risk: young children, the elderly, immunocompromised, pregnant women. Professional decontamination eliminates these vectors and certifies a return to a healthy environment.  <\/p>\n<h2>Our decontamination protocol<\/h2>\n<p>initial cleaning of surfaces, application of Health Canada approved broad-spectrum disinfectant by ultra-low volume spray or nebulization, contact time respected, ventilation and drying, control measures to verify effectiveness.<\/p>\n<h3>Equipment used<\/h3>\n<ul>\n<li>H13 class HEPA industrial vacuum cleaner (99.95 percent particle retention at 0.3 \u03bcm)<\/li>\n<li>Broad-spectrum biocides registered by Health Canada (Virkon, stabilized peroxide, rotating quaternary ammoniums)<\/li>\n<li>Full personal protective equipment (Tyvek suit, P100 half mask, nitrile gloves)<\/li>\n<li>Enzymatic odor neutralization (eliminates cause, not mask)<\/li>\n<li>Document camera for before\/after photos (belayer)<\/li>\n<\/ul>\n<p><strong>Duration:<\/strong> 1 to 4 hours depending on the surface.<\/p>\n<h2>Underwriting and Inspection<\/h2>\n<p>Here are the service variants we offer for this need:<\/p>\n<ul>\n<li>Spot decontamination (basement, shed, crawl space)<\/li>\n<li>Attic up to 600 sq. ft. with insulation setback<\/li>\n<li>Complete house after massive infestation<\/li>\n<li>Commercial decontamination (restaurant, warehouse)<\/li>\n<\/ul>\n<h3>What influences the quote<\/h3>\n<ul>\n<li>Surface or volume to be treated<\/li>\n<li>Extent of the infestation or situation<\/li>\n<li>Accessibility of the areas concerned<\/li>\n<li>Response time requested (planned or emergency)<\/li>\n<li>Scope of the desired warranty<\/li>\n<li>Documentation required for insurer, notary or audit<\/li>\n<\/ul>\n<p>The inspection is <strong>non-binding<\/strong>. We evaluate on site (or by phone as the case may be) and give you a written estimate adapted to your building before any work begins. No unpleasant surprises at the end.  <\/p>\n<h2>Recommended next steps<\/h2>\n<p>Decontamination corrects the consequences of an infestation. To prevent it from happening again, several related services should be considered: <\/p>\n<ul>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/decontamination\/\">decontamination<\/a><\/li>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/prevention-services\/\">Pest prevention<\/a><\/li>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/insects\/bed-bugs\/\">Bed bug extermination<\/a><\/li>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/insects\/cockroach\/\">cockroach extermination<\/a><\/li>\n<li><a href=\"\/decontamination-rongeurs\/\">Decontamination after rodents<\/a><\/li>\n<\/ul>\n<h2>Home insurance coverage<\/h2>\n<p>Many home insurance policies cover decontamination when a loss is proven (animal infestation, biological damage). We make it easy to make the claim by providing: <\/p>\n<ul>\n<li>Detailed evaluation report with before\/after photos<\/li>\n<li>Precise identification of target species and pathogens<\/li>\n<li>Detailed invoice with batches of biocides used<\/li>\n<li>Signed decontamination certificate<\/li>\n<\/ul>\n<p>Practical advice: call your insurer BEFORE starting the work. Check your deductible and get a claim number. This speeds up the repayment.  <\/p>\n<h2>Questions<\/h2>\n<h3>Should the house be evacuated during decontamination?<\/h3>\n<p>For an intervention in an attic or crawl space, generally not. For decontamination in the living room, eviction of 4 to 8 hours after application of the biocide is recommended. <\/p>\n<h3>Will the smell really disappear?<\/h3>\n<p>Yes 95 percent of the time, as long as all contaminated insulation is removed. Enzyme treatment neutralizes the biological cause. If the odor persists after 7 days, we schedule a follow-up according to your warranty.  <\/p>\n<h3>Do I have to replace all the insulation every time?<\/h3>\n<p>Not systematically. It depends on the volume and depth of the contamination. Our report clearly indicates whether replacement is required.  <\/p>\n<h3>How long does it take between the call and the intervention?<\/h3>\n<p>5 business days on average. For urgent cases (unbearable smell, presence of children or animals at risk), 48 to 72 hours. <\/p>\n<h3>How long does the effect of disinfection last?<\/h3>\n<p>Indefinitely, as long as no new infestation contaminates the area. For this reason, we consistently recommend that entry points be closed after decontamination. <\/p>\n<h2>Contact Nova Extermination<\/h2>\n<p>Inspection within 24 hours, quick intervention. Intervention the next day. Coverage assessed on a case-by-case basis, depending on the condition of the building. Call <strong>514 666 6682<\/strong> or fill out the contact form for disinfection after infestation.   <\/p>\n<p><small>Nova Extermination, RBQ license 5734 75930 01. Service 7 days a week, including public holidays. Health Canada Licensed Products.  <\/small><\/p>\n\n<!--NOVA_FAQ_START--><style>.nova-faq<span>max-width:900px;margin:44px auto;padding:0 16px;font-family:'Inter',sans-serif.nova-faq__title<span>font-family:'Montserrat',sans-serif;font-size:28px;font-weight:700;color:#BF1E2E;text-align:center;margin:0 0 26px.nova-faq__item<span>border:1px solid #ececec;border-radius:10px;margin-bottom:12px;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.04);overflow:hidden.nova-faq__item[open]<span>box-shadow:0 6px 18px rgba(0,0,0,.09).nova-faq__q<span>font-family:'Montserrat',sans-serif;font-weight:600;font-size:17px;color:#1a1a1a;padding:18px 52px 18px 20px;cursor:pointer;list-style:none;position:relative.nova-faq__q::-webkit-details-marker<span>display:none.nova-faq__q::after<span>content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:26px;line-height:1;color:#BF1E2E;font-weight:400;transition:transform .2s.nova-faq__item[open] .nova-faq__q::after<span>content:'\\2212'.nova-faq__a<span>padding:2px 20px 20px;color:#444;font-size:16px;line-height:1.65.nova-faq__a p<span>margin:0\/* remplace la FAQ generique du gabarit sur les pages de service *\/.elementor-element-a5f60a6<span>display:none!important<\/style><section class=\"nova-faq\" aria-label=\"Foire aux questions\"><h2 class=\"nova-faq__title\">Frequently Asked Questions: Post-Infestation Disinfection<\/h2><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">What is the post-infestation disinfection offered on the South Shore of Montreal?<\/summary><div class=\"nova-faq__a\"><p>Post-infestation disinfection aims to eliminate bacteria, viruses and allergens left behind by rodents or insects once the infestation is controlled. Our technicians apply approved disinfectants to contaminated surfaces, soiled insulation and nesting areas in both Longueuil and Brossard. The objective is to sanitize the premises and reduce the health risks for the occupants.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">When should I use this service after an extermination?<\/summary><div class=\"nova-faq__a\"><p>Disinfection is done once the infestation is under control and the source of pests is eliminated, otherwise contamination would return. This is especially recommended after an infestation of mice, cockroaches or bedbugs in a home or business in Mont\u00e9r\u00e9gie. This allows us to start again on healthy surfaces before returning to the premises.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">What products and processes do you use to disinfect?<\/summary><div class=\"nova-faq__a\"><p>We use approved disinfectants adapted to the type of contaminant, applied by spraying or misting depending on the surface. Our technicians wear the required protective equipment and comply with CNESST standards during the intervention. Overly soiled materials, such as some insulation, may need to be removed prior to application.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">Does disinfection eliminate odours and allergens?<\/summary><div class=\"nova-faq__a\"><p>The treatment significantly reduces odours from excrement, urine and carcasses, as well as airborne allergens. Depending on the extent of the contamination, a removal of soiled materials may be added for an optimal result. Each situation is evaluated on a case-by-case basis to target the areas to be treated.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">Do you offer a guarantee on disinfection?<\/summary><div class=\"nova-faq__a\"><p>We aim for sustainable results evaluated on a case-by-case basis, but we do not promise guarantees on all our treatments. We do not take care of the insalubrity or persistent dilapidation of a building; The maintenance of the premises remains the responsibility of the owner. Our technicians will advise you on the measures to be maintained after our visit.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">How much does disinfection cost after infestation?<\/summary><div class=\"nova-faq__a\"><p>The price is established on the basis of an evaluation, depending on the scope of the work, the surface to be treated and the degree of contamination. An on-site inspection in Saint-Hubert or elsewhere on the South Shore allows us to provide you with a fair estimate. This is a paid service performed by certified technicians.  <\/p><\/div><\/details><\/section><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"En quoi consiste la d\u00e9sinfection apr\u00e8s infestation offerte sur la Rive-Sud de Montr\u00e9al?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"La d\u00e9sinfection apr\u00e8s infestation vise \u00e0 \u00e9liminer les bact\u00e9ries, virus et allerg\u00e8nes laiss\u00e9s par les rongeurs ou insectes une fois l'infestation contr\u00f4l\u00e9e. Nos techniciens appliquent des d\u00e9sinfectants homologu\u00e9s sur les surfaces contamin\u00e9es, l'isolant souill\u00e9 et les zones de nidification, \u00e0 Longueuil comme \u00e0 Brossard. L'objectif est d'assainir les lieux et de r\u00e9duire les risques sanitaires pour les occupants.\", {\"@type\": \"Question\", \"name\": \"Quand devrais-je recourir \u00e0 ce service apr\u00e8s une extermination?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"On proc\u00e8de \u00e0 la d\u00e9sinfection une fois que l'infestation est ma\u00eetris\u00e9e et que la source de nuisibles est \u00e9limin\u00e9e, sinon la contamination reviendrait. C'est particuli\u00e8rement recommand\u00e9 apr\u00e8s une infestation de souris, de coquerelles ou de punaises dans un logement ou un commerce en Mont\u00e9r\u00e9gie. Cela permet de repartir sur des surfaces saines avant de r\u00e9int\u00e9grer les lieux.\", {\"@type\": \"Question\", \"name\": \"Quels produits et proc\u00e9d\u00e9s utilisez-vous pour d\u00e9sinfecter?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Nous employons des d\u00e9sinfectants homologu\u00e9s et adapt\u00e9s au type de contaminant, appliqu\u00e9s par pulv\u00e9risation ou n\u00e9bulisation selon les surfaces. Nos techniciens portent l'\u00e9quipement de protection requis et respectent les normes de la CNESST durant l'intervention. Les mat\u00e9riaux trop souill\u00e9s, comme certains isolants, peuvent devoir \u00eatre retir\u00e9s avant l'application.\", {\"@type\": \"Question\", \"name\": \"La d\u00e9sinfection \u00e9limine-t-elle les odeurs et les allerg\u00e8nes?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Le traitement r\u00e9duit sensiblement les odeurs li\u00e9es aux excr\u00e9ments, \u00e0 l'urine et aux carcasses, ainsi que les allerg\u00e8nes en suspension. Selon l'ampleur de la contamination, un retrait de mat\u00e9riaux souill\u00e9s peut s'ajouter pour un r\u00e9sultat optimal. Chaque situation est \u00e9valu\u00e9e au cas par cas pour cibler les zones \u00e0 traiter.\", {\"@type\": \"Question\", \"name\": \"Offrez-vous une garantie sur la d\u00e9sinfection?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Nous visons des r\u00e9sultats durables \u00e9valu\u00e9s au cas par cas, mais nous ne promettons pas de garantie sur tous nos traitements. Nous ne prenons pas en charge l'insalubrit\u00e9 ou la v\u00e9tust\u00e9 persistante d'un b\u00e2timent; l'entretien des lieux demeure la responsabilit\u00e9 du propri\u00e9taire. Nos techniciens vous conseillent sur les mesures \u00e0 maintenir apr\u00e8s notre passage.\", {\"@type\": \"Question\", \"name\": \"Combien co\u00fbte une d\u00e9sinfection apr\u00e8s infestation?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Le prix est \u00e9tabli sur \u00e9valuation, selon l'ampleur des travaux, la surface \u00e0 traiter et le degr\u00e9 de contamination. Une inspection sur place \u00e0 Saint-Hubert ou ailleurs sur la Rive-Sud nous permet de vous remettre une estimation juste. Il s'agit d'un service payant r\u00e9alis\u00e9 par des techniciens certifi\u00e9s.\"]}<\/script><!--NOVA_FAQ_END-->\n","protected":false},"excerpt":{"rendered":"<p>Professional post-infestation disinfection to remove residual pathogens and allergens. Ultra-low volume biocide nebulization, quality control. <\/p>\n","protected":false},"featured_media":30381,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":""},"class_list":["post-32579","prevention","type-prevention","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Post-Infestation Disinfection | Nova Extermination<\/title>\n<meta name=\"description\" content=\"Complete disinfection after any infestation treated (rodents, insects, animals). 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