{"id":12088,"date":"2026-04-01T09:00:51","date_gmt":"2026-04-01T13:00:51","guid":{"rendered":"https:\/\/extermipro.com\/non-classe\/coquerelles-propre-ndg-cote-des-neiges-ndg\/"},"modified":"2026-05-04T18:04:30","modified_gmt":"2026-05-04T22:04:30","slug":"clean-mice-cote-des-neiges-ndg","status":"publish","type":"post","link":"https:\/\/extermipro.com\/en\/blog-extermination-montreal\/coquerelles-propre-ndg-cote-des-neiges-ndg\/","title":{"rendered":"Roaches in a clean NDG apartment: the myth of cleanliness debunked"},"content":{"rendered":"<style>.ep-green { color:#289840; font-weight:700; }.ep-link { color:#1e73be; text-decoration:underline; }.ep-softbox { background:#f5f7f9; padding:16px; border-radius:12px; }.ep-greenbox { background:#e9f7ef; border:2px solid #289840; padding:14px 16px; border-radius:12px; margin:14px 0; }.ep-hr { height:1px; background:#e6eef2; border:0; margin:18px 0; }.ep-table { width:100%; border-collapse:separate; border-spacing:0; overflow:hidden; border-radius:14px; }.ep-table th,.ep-table td { border:2px solid #289840; padding:12px 12px; vertical-align:top; }.ep-table th { background:#e9f7ef; font-weight:900; color:#1f2f36; }.ep-table td { background:#ffffff; color:#2c3e46; }.snippet-bait { background:#f7fbff; border-left:5px solid #1e73be; padding:14px 16px; border-radius:10px; margin:16px 0 22px; }.ep-h1 { font-size:54px; font-weight:900; line-height:1.05; margin:8px 0 14px; color:#1f2f36; }\n@media (max-width: 980px){.ep-h1{ font-size:44px; } }\n@media (max-width: 520px){.ep-h1{ font-size:36px; } }<\/style>\n<p>Les coquerelles font partie des probl\u00e8mes les plus courants dans les logements de Notre-Dame-de-Gr\u00e2ce. Que vous habitiez un plex ancien, un condo r\u00e9cent ou une maison unifamiliale, comprendre le comportement de ces nuisibles est la cl\u00e9 pour les \u00e9liminer efficacement.<\/p>\n<div class=\"snippet-bait\"><p><strong>In short:<\/strong> This article covers the causes, signs, and solutions for cockroaches in Notre-Dame-de-Gr\u00e2ce homes. Based on actual interventions in the neighborhood by certified technicians.<\/p><\/div>\n<hr class=\"ep-hr\">\n<h2>Notre-Dame-de-Gr\u00e2ce: why the <span class=\"ep-green\">cockroaches<\/span> are <span class=\"ep-green\">frequent<\/span> here<\/h2>\n<p>The Notre-Dame-de-Gr\u00e2ce neighborhood has characteristics that favor the presence of cockroaches. The density of housing, the age of the buildings, and the proximity to green spaces or waterways create a conducive environment. Duplexes and triplexes built before the 1980s often have gaps in their foundations and around plumbing that pests exploit.<\/p>\n<p>Our certified technicians regularly work in Notre-Dame-de-Gr\u00e2ce and are familiar with the specific characteristics of local buildings. This local knowledge allows us to tailor each intervention to the actual conditions of your home.<\/p>\n<hr class=\"ep-hr\">\n<h2>The <span class=\"ep-green\">errors<\/span> the most common ones facing cockroaches<\/h2>\n<p>After years of intervention at Notre-Dame-de-Gr\u00e2ce, our technicians have identified the most frequent recurring errors:<\/p>\n<ol>\n<li><strong>Use over-the-counter products:<\/strong> aerosol bombs, sticky traps, and ultrasonic repellents \u2014 these products move the problem without eliminating it. Worse, they can disperse the colony and make the infestation harder to treat.<\/li>\n<li><strong>Wait for \u00abit to pass\u00bb:<\/strong> A cockroach infestation never resolves itself. Every day of delay allows the population to grow.<\/li>\n<li><strong>Clean without treating:<\/strong> Impeccable housing reduces food sources but doesn't eliminate cockroaches already in the walls or structures.<\/li>\n<li><strong>Processing a single dwelling in a building:<\/strong> Cockroaches migrate to apartments not treated through shared vents.<\/li>\n<\/ol>\n<hr class=\"ep-hr\">\n<h2>Measures of <span class=\"ep-green\">prevention<\/span> effective<\/h2>\n<p>To protect your home in Notre-Dame-de-Gr\u00e2ce against cockroaches, adopt these preventive measures recommended by our technicians:<\/p>\n<div class=\"ep-greenbox\">\n<p><strong>Clogging:<\/strong> Seal all openings larger than 6 mm around plumbing, foundations, and window frames with steel wool and caulk.<\/p>\n<p><strong>\u2705 Food Storage:<\/strong> Store all food in airtight glass or rigid plastic containers<\/p>\n<p><strong>Waste Management:<\/strong> Take out the trash regularly and use containers with airtight lids<\/p>\n<p><strong>Humidity control:<\/strong> Repair leaks, ventilate bathrooms, and use a dehumidifier in the basement if necessary.<\/p>\n<p><strong>\u2705 Seasonal Inspection:<\/strong> Check entry points before each fall, especially after renovations.<\/p>\n<\/div>\n<hr class=\"ep-hr\">\n<h2>When to call a <span class=\"ep-green\">professional<\/span> certified<\/h2>\n<p>Certain situations in Notre-Dame-de-Gr\u00e2ce absolutely require the intervention of a certified pest control professional:<\/p>\n<ul>\n<li><strong>Recurring signs:<\/strong> The cockroaches are back despite your prevention efforts \u2014 the source has not been identified<\/li>\n<li><strong>Multi-unit building<\/strong> A coordinated approach is needed to handle multiple units simultaneously.<\/li>\n<li><strong>Presence of children or animals:<\/strong> Only professional products approved by Health Canada guarantee safe application.<\/li>\n<li><strong>Structural damage:<\/strong> Cockroaches that damage wood, insulation, or wiring require thorough diagnosis<\/li>\n<\/ul>\n<p>Our certified technicians work in Notre-Dame-de-Gr\u00e2ce and surrounding neighborhoods with methods adapted to each type of building. Consult our page <a class=\"ep-link\" href=\"https:\/\/extermipro.com\/en\/exterminator-notre-dame-de-grace\/\">Notre-Dame-de-Gr\u00e2ce<\/a> to learn more.<\/p>\n<hr class=\"ep-hr\">\n<h2>People are asking <span class=\"ep-green\">also<\/span><\/h2>\n<div class=\"ep-softbox\" style=\"margin-bottom:12px;\">\n<p><strong>Can cockroaches fly?<\/strong><\/p>\n<p>Some species have wings but rarely fly. In Quebec, the German cockroach (the most common in homes) does not fly. It moves quickly on the floor and walls.<\/p>\n<\/div>\n<div class=\"ep-softbox\" style=\"margin-bottom:12px;\">\n<p><strong>Is a single cockroach a sign of an infestation?<\/strong><\/p>\n<p>Not necessarily, but it's a warning sign. If you see one during the day, there are probably dozens hidden \u2014 cockroaches are nocturnal and only come out during the day when the nest is overcrowded.<\/p>\n<\/div>\n<hr class=\"ep-hr\">\n<h2>Resources for <span class=\"ep-green\">your neighborhood<\/span><\/h2>\n<p>Check out our page <a class=\"ep-link\" href=\"https:\/\/extermipro.com\/en\/exterminator-notre-dame-de-grace\/\">Pest control services in Notre-Dame-de-Gr\u00e2ce<\/a> for more information on interventions in your sector.<\/p>\n<p>We also operate in <a class=\"ep-link\" href=\"https:\/\/extermipro.com\/en\/pest-control-villeray\/\">Villeray<\/a>, <a class=\"ep-link\" href=\"https:\/\/extermipro.com\/en\/rosemont-exterminator\/\">Rosemont<\/a>, <a class=\"ep-link\" href=\"https:\/\/extermipro.com\/en\/exterminator-plateau-mont-royal\/\">Plateau Mont-Royal<\/a>, <a class=\"ep-link\" href=\"https:\/\/extermipro.com\/en\/exterminator-hochelaga-maisonneuve\/\">Hochelaga-Maisonneuve<\/a>, <a class=\"ep-link\" href=\"https:\/\/extermipro.com\/en\/exterminator-cote-des-neiges\/\">C\u00f4te-des-Neiges<\/a>.<\/p>\n\n\n<div class=\"ep-quartiers\">\n <h3>And in the neighboring neighborhoods?<\/h3>\n <ul>\n <li><a href=\"\/en\/exterminator-notre-dame-de-grace\/\">Notre-Dame-de-Gr\u00e2ce<\/a> \u2014 For targeted advice on this neighboring district, consult our local service page.<\/li>\n <li><a href=\"\/en\/exterminator-outremont\/\">Outremont<\/a> \u2014 For targeted advice on this neighboring district, consult our local service page.<\/li>\n <li><a href=\"\/en\/mont-royal-exterminator\/\">Mount Royal<\/a> \u2014 For targeted advice on this neighboring district, consult our local service page.<\/li>\n <li><a href=\"\/en\/exterminateur-westmount\/\">Westmount<\/a> \u2014 For targeted advice on this neighboring district, consult our local service page.<\/li>\n <li><a href=\"\/en\/exterminator-plateau-mont-royal\/\">Plateau-Mont-Royal<\/a> \u2014 For targeted advice on this neighboring district, consult our local service page.<\/li>\n <\/ul>\n<\/div>\n\n\n\n\n<div class=\"ep-meter\">\n <h3 style=\"margin-bottom:1rem;font-size:1.1rem;font-weight:700;\">Infestation risk level by housing type in Notre-Dame-de-Gr\u00e2ce<\/h3>\n <div class=\"ep-meter-row\">\n <span class=\"ep-meter-label\">Plex before 1980<\/span>\n <div class=\"ep-meter-bar\"><div class=\"ep-meter-fill high\" style=\"width:90%;\"><\/div><\/div>\n <span class=\"ep-meter-value\">High<\/span>\n <\/div>\n <div class=\"ep-meter-row\">\n <span class=\"ep-meter-label\">Multifamily apartment building (1980s\u20132000s)<\/span>\n <div class=\"ep-meter-bar\"><div class=\"ep-meter-fill high\" style=\"width:72%;\"><\/div><\/div>\n <span class=\"ep-meter-value\">High<\/span>\n <\/div>\n <div class=\"ep-meter-row\">\n <span class=\"ep-meter-label\">Recent condo (after 2000)<\/span>\n <div class=\"ep-meter-bar\"><div class=\"ep-meter-fill med\" style=\"width:45%;\"><\/div><\/div>\n <span class=\"ep-meter-value\">Moderate<\/span>\n <\/div>\n <div class=\"ep-meter-row\">\n <span class=\"ep-meter-label\">Single-family house<\/span>\n <div class=\"ep-meter-bar\"><div class=\"ep-meter-fill low\" style=\"width:25%;\"><\/div><\/div>\n <span class=\"ep-meter-value\">Weak<\/span>\n <\/div>\n<\/div>\n<style>.ep-meter { font-family: inherit; padding: 1.25rem 1.5rem; background: #f9f9f9; border-radius: 8px; border: 1px solid #e0e0e0; max-width: 680px; }.ep-meter-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.85rem; }.ep-meter-label { flex: 0 0 260px; font-size: 0.92rem; color: #333; }.ep-meter-bar { flex: 1; background: #e4e4e4; border-radius: 999px; height: 18px; overflow: hidden; }.ep-meter-fill { height: 100%; border-radius: 999px; transition: width 0.4s ease; }.ep-meter-fill.low { background: #4caf50; }.ep-meter-fill.med { background: #ff9800; }.ep-meter-fill.high { background: #e53935; }.ep-meter-value { flex: 0 0 60px; font-size: 0.85rem; font-weight: 600; color: #555; text-align: right; }\n<\/style>","protected":false},"excerpt":{"rendered":"<p>Roaches despite a clean apartment in NDG? Understand the real causes and act effectively with tailored solutions.<\/p>","protected":false},"author":1,"featured_media":12087,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_elementor_version":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"fullscreen","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[24],"tags":[],"class_list":["post-12088","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-extermination-montreal"],"acf":{"faq_question_1":"Les coquerelles sont-elles caus\u00e9es par un manque de propret\u00e9 ?","faq_reponse_1":"Non. Elles sont surtout attir\u00e9es par l\u2019humidit\u00e9, la chaleur et les acc\u00e8s structurels entre logements.","faq_question_2":"Pourquoi ai-je des coquerelles dans un logement propre \u00e0 NDG ?","faq_reponse_2":"Dans les immeubles, elles circulent entre les unit\u00e9s par les murs, les conduits et les fissures.","faq_question_3":"Les coquerelles sortent-elles seulement la nuit ?","faq_reponse_3":"Elles sont surtout actives la nuit, mais une pr\u00e9sence de jour indique souvent une infestation avanc\u00e9e.","faq_question_4":"Comment savoir si les coquerelles viennent d\u2019un voisin ?","faq_reponse_4":"Leur apparition soudaine malgr\u00e9 un bon entretien et leur pr\u00e9sence pr\u00e8s des murs mitoyens sont des indices fr\u00e9quents.","faq_question_5":"Le nettoyage suffit-il pour \u00e9liminer les coquerelles ?","faq_reponse_5":"Non. Le nettoyage aide, mais un traitement professionnel cibl\u00e9 est n\u00e9cessaire pour \u00e9liminer les cachettes.","faq_question_6":"Que faire en cas d\u2019infestation dans un immeuble ?","faq_reponse_6":"Il faut agir rapidement, informer le gestionnaire et traiter plusieurs unit\u00e9s si n\u00e9cessaire."},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u00c9vitez les erreurs courantes face aux coquerelles \u00e0 NDG. 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