{"id":32587,"date":"2026-05-19T17:28:57","date_gmt":"2026-05-19T21:28:57","guid":{"rendered":"https:\/\/www.novaextermination.com\/extermination\/rodent-decontamination\/"},"modified":"2026-07-20T12:25:05","modified_gmt":"2026-07-20T16:25:05","slug":"rodent-decontamination","status":"publish","type":"extermination","link":"https:\/\/www.novaextermination.com\/en\/extermination\/rodent-decontamination\/","title":{"rendered":"Rodent decontamination"},"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>.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)(function(){var S=document.querySelectorAll(&#8216;.nova-rating-src&#8217;);var node=S[S.length-1];if(!node)return;function init()<span>if(node.__rdone)return;var h1=document.querySelector(&#8216;h1&#8217;);if(!h1)return;node.__rdone=1;var b=document.createElement(&#8216;div&#8217;);b.className=&#8217;nova-rating-hero&#8217;;b.innerHTML=node.innerHTML;var anchor=h1.closest(&#8216;.elementor-widget&#8217;)||h1;anchor.parentNode.insertBefore(b,anchor.nextSibling);if(document.readyState!==&#8217;loading&#8217;)init();else document.addEventListener(&#8216;DOMContentLoaded&#8217;,init);window.addEventListener(&#8216;load&#8217;,init);})();{&#8220;@context&#8221;: &#8220;https:\/\/schema.org\/&#8221;, &#8220;@type&#8221;: &#8220;Product&#8221;, &#8220;name&#8221;: &#8220;D\u00e9contamination rongeurs&#8221;, &#8220;description&#8221;: &#8220;Service d&#8217;extermination : D\u00e9contamination rongeurs. Nova Extermination, exterminateur certifie sur la Rive-Sud de Montreal et en Monteregie.&#8221;, &#8220;brand&#8221;: <span>&#8220;@type&#8221;: &#8220;Brand&#8221;, &#8220;name&#8221;: &#8220;Nova Extermination&#8221;, &#8220;aggregateRating&#8221;: <span>&#8220;@type&#8221;: &#8220;AggregateRating&#8221;, &#8220;ratingValue&#8221;: &#8220;4.9&#8221;, &#8220;reviewCount&#8221;: &#8220;203&#8221;, &#8220;bestRating&#8221;: &#8220;5&#8221;, &#8220;worstRating&#8221;: &#8220;1&#8221;<!--NOVA_RATING_END-->\n<p>After an infestation of mice, rats or field mice, the contaminated surfaces and insulation harbour pathogens (hantavirus, leptospira, salmonella) that remain virulent for several months. Cleaning with soap and water is insufficient and can even spread contaminants by aerosol. <\/p>\n<p>Nova Extermination performs this service on the South Shore of Montreal with professional equipment and documented reports. License RBQ 5734 75930 01. <\/p>\n<h2>When to use this service<\/h2>\n<ul>\n<li>After an extermination in a frequented area (kitchen, inhabited basement, closet)<\/li>\n<li>If an odor persists more than 2 weeks after the rodents have been eliminated<\/li>\n<li>Before the sale or rental of a home<\/li>\n<li>When the damage has reached the insulation (attics, crawl spaces)<\/li>\n<li>For areas with young children or immunocompromised people<\/li>\n<\/ul>\n<h2>Our step-by-step method<\/h2>\n<ol>\n<li>Visual evaluation and costing before any work begins<\/li>\n<li>Installation of polyethylene barriers to confine the area<\/li>\n<li>Full protective equipment for technicians (Tyvek, P100, nitrile gloves)<\/li>\n<li>Pre-moistening of the droppings (reduces the risk of aerosols)<\/li>\n<li>H13 HEPA suction (99.95 percent particle retention at 0.3 \u03bcm)<\/li>\n<li>Removal of contaminated insulation if required (double bagging, transport to an approved site)<\/li>\n<li>Spray of Broad-Spectrum Biocide Registered by Health Canada<\/li>\n<li>Enzymatic odor neutralization (elimination of the cause, not masking)<\/li>\n<li>Before\/after photos and decontamination certificate<\/li>\n<\/ol>\n<p><strong>Typical duration:<\/strong> half day to day 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 in the basement or shed<\/li>\n<li>Decontamination + attic insulation removal (up to 600 sq. ft.)<\/li>\n<li>Complete house decontamination with insulation replacement<\/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>Services that are often combined with it<\/h2>\n<p>To deal with the problem in the long term, this service is frequently linked to:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/rodents\/mice-exterminator\/\">mouse extermination<\/a><\/li>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/rodents\/rats-extermination\/\">extermination of rats<\/a><\/li>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/rodents\/extermination-field-mouse\/\">extermination of field mice<\/a><\/li>\n<li><a href=\"\/isolation-cellulose\/\">Cellulose insulation after infestation<\/a><\/li>\n<li><a href=\"https:\/\/www.novaextermination.com\/en\/decontamination\/\">decontamination<\/a><\/li>\n<\/ul>\n<p>We mention it in the report when relevant, without commercial pressure: it&#8217;s up to you to choose if you want to go further.<\/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, followed by ventilation. <\/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 of the odor, not just masking. If the odor persists after 7 days, we schedule a follow-up according to your warranty.  <\/p>\n<h3>Does home insurance cover decontamination?<\/h3>\n<p>Often yes, especially when a disaster is proven (damage attributed to rodents). We provide detailed report and invoice for the claim. Check your deductible before starting the work.  <\/p>\n<h3>How long does decontamination take?<\/h3>\n<p>From 4 hours for a small basement to 2 or 3 full days for an attic with insulation replacement. The quote indicates the expected duration. <\/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 rodent decontamination contact form.   <\/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-->.nova-faq<span>max-width:900px;margin:44px auto;padding:0 16px;font-family:&#8217;Inter&#8217;,sans-serif.nova-faq__title<span>font-family:&#8217;Montserrat&#8217;,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:&#8217;Montserrat&#8217;,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:&#8217;+&#8217;;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:&#8217;\\2212&#8242;.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<section class=\"nova-faq\" aria-label=\"Foire aux questions\"><h2 class=\"nova-faq__title\">Frequently Asked Questions: Rodent Decontamination<\/h2><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">What is decontamination after a rodent infestation?<\/summary><div class=\"nova-faq__a\"><p>Decontamination aims to clean and disinfect areas soiled by feces, urine and nests left by mice or rats, once the infestation has been controlled. It includes the safe removal of droppings and debris, the disinfection of surfaces and sometimes the replacement of contaminated insulation in attics and crawl spaces. In Longueuil and Saint-Hubert, this service complements rodent elimination.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">Why not just clean up rodent droppings myself?<\/summary><div class=\"nova-faq__a\"><p>Rodent droppings and urine can contain pathogens, and sweeping or vacuuming carelessly risks suspending contaminated particles that are dangerous to inhale. Professional decontamination uses appropriate methods and protective equipment to limit the risks. This is especially important in confined spaces like attics and basements.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">What risks do rodent nests and droppings leave in the house?<\/summary><div class=\"nova-faq__a\"><p>Beyond pathogens, feces and urine give off strong odors that can linger and attract new rodents to the same areas. Nests and soiled insulation also affect the sanitation and sometimes effectiveness of insulation. Proper decontamination sanitizes the premises and reduces these inconveniences.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">How does a decontamination intervention work?<\/summary><div class=\"nova-faq__a\"><p>After ensuring that the rodents are controlled, our technician removes the droppings and soiled materials, disinfects the surfaces with approved products and, if necessary, treats odours. Depending on the extent, the contaminated insulation may need to be replaced. We adapt the intervention to the state of the premises observed during the inspection.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">How much does rodent decontamination cost?<\/summary><div class=\"nova-faq__a\"><p>The price is established on the basis of an evaluation, depending on the extent of the contaminated surfaces, the presence of insulation to be replaced and the accessibility of the affected areas. Each situation is different, so an inspection is necessary before setting a rate. The amount is communicated to you before the work, our services being paid.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">Does decontamination prevent rodents from returning?<\/summary><div class=\"nova-faq__a\"><p>Decontamination sanitizes and deodorizes the premises, which reduces the signals that attract new rodents, but it must be accompanied by access control to avoid reinfestation. We talk about sustainable outcomes evaluated on a case-by-case basis and often recommend sealing entry points. Our technician will advise you on the preventive measures to be put in place.  <\/p><\/div><\/details><\/section>{&#8220;@context&#8221;: &#8220;https:\/\/schema.org&#8221;, &#8220;@type&#8221;: &#8220;FAQPage&#8221;, &#8220;mainEntity&#8221;: [{&#8220;@type&#8221;: &#8220;Question&#8221;, &#8220;name&#8221;: &#8220;En quoi consiste la d\u00e9contamination apr\u00e8s une infestation de rongeurs?&#8221;, &#8220;acceptedAnswer&#8221;: <span>&#8220;@type&#8221;: &#8220;Answer&#8221;, &#8220;text&#8221;: &#8220;La d\u00e9contamination vise \u00e0 nettoyer et d\u00e9sinfecter les espaces souill\u00e9s par les excr\u00e9ments, l&#8217;urine et les nids laiss\u00e9s par les souris ou les rats, une fois l&#8217;infestation contr\u00f4l\u00e9e. Elle comprend le retrait s\u00e9curitaire des d\u00e9jections et d\u00e9bris, la d\u00e9sinfection des surfaces et parfois le remplacement de l&#8217;isolant contamin\u00e9 dans les greniers et vides sanitaires. \u00c0 Longueuil comme \u00e0 Saint-Hubert, ce service compl\u00e8te l&#8217;\u00e9limination des rongeurs.&#8221;, {&#8220;@type&#8221;: &#8220;Question&#8221;, &#8220;name&#8221;: &#8220;Pourquoi ne pas simplement nettoyer les excr\u00e9ments de rongeurs moi-m\u00eame?&#8221;, &#8220;acceptedAnswer&#8221;: <span>&#8220;@type&#8221;: &#8220;Answer&#8221;, &#8220;text&#8221;: &#8220;Les d\u00e9jections et l&#8217;urine de rongeurs peuvent contenir des agents pathog\u00e8nes, et balayer ou aspirer sans pr\u00e9caution risque de mettre en suspension des particules contamin\u00e9es dangereuses \u00e0 inhaler. Une d\u00e9contamination professionnelle emploie des m\u00e9thodes et un \u00e9quipement de protection adapt\u00e9s pour limiter les risques. C&#8217;est particuli\u00e8rement important dans les espaces confin\u00e9s comme les greniers et sous-sols.&#8221;, {&#8220;@type&#8221;: &#8220;Question&#8221;, &#8220;name&#8221;: &#8220;Quels risques les nids et d\u00e9jections de rongeurs laissent-ils dans la maison?&#8221;, &#8220;acceptedAnswer&#8221;: <span>&#8220;@type&#8221;: &#8220;Answer&#8221;, &#8220;text&#8221;: &#8220;Au-del\u00e0 des agents pathog\u00e8nes, les excr\u00e9ments et l&#8217;urine d\u00e9gagent de fortes odeurs qui peuvent persister et attirer de nouveaux rongeurs vers les m\u00eames zones. Les nids et l&#8217;isolant souill\u00e9 nuisent aussi \u00e0 la salubrit\u00e9 et parfois \u00e0 l&#8217;efficacit\u00e9 de l&#8217;isolation. Une d\u00e9contamination ad\u00e9quate assainit les lieux et r\u00e9duit ces d\u00e9sagr\u00e9ments.&#8221;, {&#8220;@type&#8221;: &#8220;Question&#8221;, &#8220;name&#8221;: &#8220;Comment se d\u00e9roule une intervention de d\u00e9contamination?&#8221;, &#8220;acceptedAnswer&#8221;: <span>&#8220;@type&#8221;: &#8220;Answer&#8221;, &#8220;text&#8221;: &#8220;Apr\u00e8s s&#8217;\u00eatre assur\u00e9 que les rongeurs sont contr\u00f4l\u00e9s, notre technicien proc\u00e8de au retrait des d\u00e9jections et mat\u00e9riaux souill\u00e9s, \u00e0 la d\u00e9sinfection des surfaces avec des produits homologu\u00e9s et, au besoin, au traitement des odeurs. Selon l&#8217;ampleur, l&#8217;isolant contamin\u00e9 peut devoir \u00eatre remplac\u00e9. Nous adaptons l&#8217;intervention \u00e0 l&#8217;\u00e9tat des lieux constat\u00e9 \u00e0 l&#8217;inspection.&#8221;, {&#8220;@type&#8221;: &#8220;Question&#8221;, &#8220;name&#8221;: &#8220;Combien co\u00fbte une d\u00e9contamination apr\u00e8s rongeurs?&#8221;, &#8220;acceptedAnswer&#8221;: <span>&#8220;@type&#8221;: &#8220;Answer&#8221;, &#8220;text&#8221;: &#8220;Le prix est \u00e9tabli sur \u00e9valuation, selon l&#8217;\u00e9tendue des surfaces contamin\u00e9es, la pr\u00e9sence d&#8217;isolant \u00e0 remplacer et l&#8217;accessibilit\u00e9 des zones touch\u00e9es. Chaque situation \u00e9tant diff\u00e9rente, une inspection est n\u00e9cessaire avant de fixer un tarif. Le montant vous est communiqu\u00e9 avant les travaux, nos services \u00e9tant payants.&#8221;, {&#8220;@type&#8221;: &#8220;Question&#8221;, &#8220;name&#8221;: &#8220;La d\u00e9contamination emp\u00eache-t-elle le retour des rongeurs?&#8221;, &#8220;acceptedAnswer&#8221;: <span>&#8220;@type&#8221;: &#8220;Answer&#8221;, &#8220;text&#8221;: &#8220;La d\u00e9contamination assainit et d\u00e9sodorise les lieux, ce qui r\u00e9duit les signaux qui attirent de nouveaux rongeurs, mais elle doit s&#8217;accompagner du contr\u00f4le des acc\u00e8s pour \u00e9viter une r\u00e9infestation. Nous parlons de r\u00e9sultats durables \u00e9valu\u00e9s au cas par cas et recommandons souvent le scellement des points d&#8217;entr\u00e9e. Notre technicien vous conseille sur les mesures pr\u00e9ventives \u00e0 mettre en place.&#8221;]}<!--NOVA_FAQ_END-->\n","protected":false},"excerpt":{"rendered":"<p>Complete cleaning and disinfection of rodent-contaminated areas: attic, basement, insulation. Elimination of pathogens hantavirus, leptospires, salmonella. <\/p>\n","protected":false},"featured_media":30331,"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":""},"extermination_animaux":[],"class_list":["post-32587","extermination","type-extermination","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>Decontamination after rodent infestation | Nova Extermination<\/title>\n<meta name=\"description\" content=\"Decontamination after infestation of mice, rats or field mice. HEPA, Health Canada biocides, odour neutralisation. Report for insurer. Written warranty.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.novaextermination.com\/en\/extermination\/rodent-decontamination\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Decontamination after rodent infestation | Nova Extermination\" \/>\n<meta property=\"og:description\" content=\"Decontamination after infestation of mice, rats or field mice. HEPA, Health Canada biocides, odour neutralisation. Report for insurer. 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