{"id":127,"date":"2019-08-24T05:33:08","date_gmt":"2019-08-24T05:33:08","guid":{"rendered":"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/?p=127"},"modified":"2026-05-04T01:39:58","modified_gmt":"2026-05-04T01:39:58","slug":"what-causes-condensation-in-aircon-trunking","status":"publish","type":"post","link":"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/articles\/what-causes-condensation-in-aircon-trunking.html","title":{"rendered":"What Causes Condensation In Aircon Trunking? (Updated)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">First and foremost, condensation in aircon trunking is quite normal because after the air conditioner cools or warms up your house, some of the moisture or water droplets formed during the process need to end up somewhere. <br><br>Therefore, it&#8217;s important to understand that there are normally two condensation lines, and that is the primary condensation drip line and the backup condensation drip line. So when you start noticing some dripping from the backup condensation drip line or <a href=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/articles\/how-to-fix-aircon-water-leaking-problem.html\">leaking from the air conditioner<\/a>, it is normally an indicator of various issues. <br><br>Most of the time, no one should notice the condensation in an aircon trunking because it should be able to automatically get rid of the moisture that builds up during the air conditioning process.&nbsp;Otherwise, these are some of the reasons that could be causing the condensation:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"767\" height=\"404\" src=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/aircon-trunking.jpg\" alt=\"Aircon trucking\" class=\"wp-image-786\" srcset=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/aircon-trunking.jpg 767w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/aircon-trunking-300x158.jpg 300w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/aircon-trunking-260x137.jpg 260w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/aircon-trunking-50x26.jpg 50w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/aircon-trunking-142x75.jpg 142w\" sizes=\"(max-width: 767px) 100vw, 767px\" \/><figcaption class=\"wp-element-caption\">Aircon trucking<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Is it Normal to Have Condensation on My Aircon Trunking?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It is a common question for many homeowners in Singapore: <em>Is a little bit of moisture normal, or do I have a serious aircon condensation problem?<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"p-rc_50a47e97164d69c2-195\">To understand <strong>what causes aircon condensation<\/strong>, think of a cold drink on a hot day<sup><\/sup>. When the cold copper pipes inside your trunking carry refrigerant, they cool the air around them. If that cold air meets the humid Singaporean atmosphere, water droplets form.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>When it\u2019s Normal:<\/strong> Seeing a light &#8220;mist&#8221; or very fine dew on the surface of the trunking during a particularly rainy or humid day is usually harmless physics at work.<\/li>\n\n\n\n<li><strong>When it\u2019s Abnormal:<\/strong> If you notice active dripping, water pooling on the floor, or brownish water stains on your walls, you are likely dealing with <strong>aircon trunking leaking<\/strong> due to degraded insulation or a clog. This is not normal and can lead to structural damage or mould growth if left unaddressed.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Poor Insulation<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">One of the key causes of condensation in aircon trunking is when the insulation is not thick enough. This is normally not your fault but rather the company or people that installed your air conditioning system. <br><br>In most cases, some of the best companies will normally advise you appropriately on the thickness of the insulation needed for the place you would like an air conditioner. Unless it&#8217;s out of malice, a professional company will ensure that the <a href=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/articles\/how-to-do-your-own-aircon-servicing.html\">air conditioner runs efficiently<\/a> for a couple of years and will use high-quality insulation materials to reduce condensation risks in the AC trunking.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2019\/08\/The-4-Pillars-of-Dry-Aircon-Trunking.jpg\" alt=\"Infographic showing the 4 pillars of dry aircon trunking and how to prevent aircon condensation problems.\" class=\"wp-image-1812\" srcset=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2019\/08\/The-4-Pillars-of-Dry-Aircon-Trunking.jpg 1024w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2019\/08\/The-4-Pillars-of-Dry-Aircon-Trunking-300x164.jpg 300w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2019\/08\/The-4-Pillars-of-Dry-Aircon-Trunking-768x419.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Expert standards for preventing aircon trunking leaks and condensation in Singapore.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Poorly Installed Trunk<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This normally means that the trunk joints did not properly fit into each other when the air conditioner was installed. So when condensation occurs, the moisture or water droplets leak through the aircon joints. <br><br>Therefore, the best solution for such a case is reinstallation of the trunk and, most importantly, by a professional AC technician. You may also need to make sure that you are at least there when the installation is being done to ensure that you know how it&#8217;s being done.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Blockage on the trap floor<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"622\" height=\"468\" src=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/Aircon-floor-trap.jpg\" alt=\"Aircon floor trap\" class=\"wp-image-787\" srcset=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/Aircon-floor-trap.jpg 622w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/Aircon-floor-trap-300x226.jpg 300w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/Aircon-floor-trap-194x146.jpg 194w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/Aircon-floor-trap-50x38.jpg 50w, https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2020\/11\/Aircon-floor-trap-100x75.jpg 100w\" sizes=\"(max-width: 622px) 100vw, 622px\" \/><figcaption class=\"wp-element-caption\">Aircon floor trap<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">In most cases, the moisture builds up and leads to blockage of the <a href=\"https:\/\/www.hdb.gov.sg\/cs\/infoweb\/residential\/living-in-an-hdb-flat\/home-maintenance\/home-care-guide\/floor-traps\" target=\"_blank\" rel=\"noreferrer noopener\">trap floor<\/a>, where instead of the trap floor draining the moisture, it builds up the water droplets. It is normally advised that you consider hiring an air conditioner technician if that is the case. <br><br>The reason being the pipes are normally trunked in a case which makes it a bit complicated to unblock the pipe yourself. Therefore, if that could be the case, contact any of the aircon technicians.<br><br>In other words, many things can lead to condensation in the trunk leading to dripping water droplets in your house. It can be annoying, especially if the water dripping ends up damaging your floor or walls. Therefore, you should handle the issue on time and make sure you have someone look at the aircon. <br><br>Otherwise, always make sure it&#8217;s a good service provider installing your air conditioner or repairing it. If you have a warranty, please use it and let your service provider handle the issue since any DIY fixing often limits or compromises your warranty.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DIY Fixes for Aircon Trunking Condensation<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"p-rc_536e664442019e7a-176\">If you are facing an <strong>aircon condensation problem<\/strong>, there are a few immediate steps you can take to mitigate the moisture before calling a professional<sup><\/sup>. Use these tips to address <strong>aircon trunking leaking<\/strong> in its early stages<sup><\/sup>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Step 1: Check Your Temperature Settings:<\/strong> Drastic temperature differences (e.g., setting your AC to 16\u00b0C while it\u2019s 32\u00b0C outside) increase the &#8220;sweating&#8221; effect on the trunking. Try a more moderate 23\u00b0C to 25\u00b0C to see if the condensation reduces.<\/li>\n\n\n\n<li><strong>Step 2: Insulate the Exposed Joints:<\/strong> Use <strong>Armaflex<\/strong> insulation tape to wrap any visible gaps or joints in the trunking. This prevents warm, humid air from hitting the cold copper pipes.<\/li>\n\n\n\n<li><strong>Step 3: Clear the Condensation Pipe:<\/strong> Locate your <strong>aircon condensation pipe<\/strong> and ensure it isn&#8217;t submerged in a full floor trap or bucket. A vacuum can sometimes be used to gently pull out minor clogs from the external end of the pipe.<\/li>\n\n\n\n<li><strong>Step 4: Dehumidify the Room:<\/strong> If the trunking is in a high-humidity area (like near a bathroom), use a dehumidifier to lower the ambient moisture that fuels condensation.<\/li>\n<\/ul>\n\n\n\n<!-- AC Condensation Severity Tool -->\n<div style=\"background: #f4f8fb; border: 2px solid #0d7dd6; border-radius: 12px; padding: 25px; margin: 30px 0; font-family: sans-serif;\">\n    <h3 style=\"color: #0c2975; margin-top: 0;\">\ud83d\udee0\ufe0f Condensation Severity Checker<\/h3>\n    <p style=\"font-size: 14px;\">Answer 2 questions to see if your trunking needs professional repair.<\/p>\n    \n    <label style=\"display:block; font-weight:bold; margin-bottom:5px;\">What does the moisture look like?<\/label>\n    <select id=\"moistureType\" style=\"width:100%; padding:10px; margin-bottom:15px; border-radius:5px;\">\n        <option value=\"sweat\">Light &#8220;sweat&#8221; (small droplets on surface)<\/option>\n        <option value=\"drip\">Active dripping or pooling on the floor<\/option>\n        <option value=\"stain\">Water stains\/mould on the wall<\/option>\n    <\/select>\n\n    <label style=\"display:block; font-weight:bold; margin-bottom:5px;\">How old is your insulation?<\/label>\n    <select id=\"insulationAge\" style=\"width:100%; padding:10px; margin-bottom:20px; border-radius:5px;\">\n        <option value=\"new\">Less than 3 years old<\/option>\n        <option value=\"old\">More than 5 years old<\/option>\n        <option value=\"none\">I&#8217;m not sure<\/option>\n    <\/select>\n\n    <button onclick=\"checkCondensation()\" style=\"background:#0d7dd6; color:#fff; border:none; padding:12px 20px; border-radius:5px; cursor:pointer; font-weight:bold; width:100%;\">Check Status<\/button>\n\n    <div id=\"diagResult\" style=\"margin-top:20px; padding:15px; border-radius:5px; display:none; background:#fff; border-left:5px solid #25D366;\"><\/div>\n<\/div>\n\n<script>\nfunction checkCondensation() {\n    const type = document.getElementById('moistureType').value;\n    const age = document.getElementById('insulationAge').value;\n    const res = document.getElementById('diagResult');\n    res.style.display = 'block';\n\n    if (type === 'sweat' && age === 'new') {\n        res.innerHTML = \"<strong>Status: Low Risk.<\/strong> This is likely caused by high humidity today. Try raising your AC temperature by 2\u00b0C.\";\n    } else if (type === 'drip' || age === 'old') {\n        res.innerHTML = \"<strong>Status: High Risk.<\/strong> Your insulation has likely degraded or \" + \n                        \"the <strong>aircon trunking is leaking<\/strong> due to a blockage. A chemical wash or re-insulation is recommended.\";\n    } else {\n        res.innerHTML = \"<strong>Status: Action Required.<\/strong> Water stains indicate a persistent <strong>aircon condensation problem<\/strong>. Contact us for a non-obligatory inspection.\";\n    }\n}\n<\/script>\n\n\n\n<!-- STANDOUT CALL TO ACTION -->\n<div style=\"background: linear-gradient(135deg, #0c2975 0%, #0d7dd6 100%); border-radius: 15px; padding: 40px 30px; text-align: center; color: #ffffff; margin: 40px 0; box-shadow: 0 10px 30px rgba(12, 41, 117, 0.3); border: 2px solid #ffffff;\">\n    <h2 style=\"color: #ffffff !important; margin-top: 0; font-size: 28px !important; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;\">Is Your Aircon Trunking Sweating?<\/h2>\n    <p style=\"font-size: 18px; line-height: 1.6; margin-bottom: 25px; color: #d4e4f7;\">\n        Don&#8217;t wait for water stains or mould to ruin your walls. Get a professional assessment and stop the <strong>aircon trunking leaking<\/strong> today!\n    <\/p>\n    \n    <a id=\"cta-wa-link\" href=\"#\" target=\"_blank\" style=\"display: inline-flex; align-items: center; background: #25D366; color: #ffffff; padding: 18px 35px; border-radius: 50px; font-weight: 800; font-size: 20px; text-decoration: none; transition: transform 0.3s ease; box-shadow: 0 4px 15px rgba(0,0,0,0.2);\">\n        <svg style=\"width:25px; margin-right:12px; fill:#fff;\" viewBox=\"0 0 24 24\"><path d=\"M12.031 0C5.383 0 0 5.383 0 12.031c0 2.124.553 4.195 1.604 6.012L.152 24l6.113-1.604c1.737.965 3.705 1.474 5.766 1.474 6.648 0 12.031-5.383 12.031-12.031S18.679 0 12.031 0zm0 21.84c-1.785 0-3.53-.48-5.06-1.385l-.36-.214-3.766.987.998-3.67-.235-.373c-1-1.59-1.527-3.435-1.527-5.325 0-5.46 4.44-9.9 9.9-9.9 5.46 0 9.9 4.44 9.9 9.9 0 5.46-4.44 9.9-9.9 9.9zm5.438-7.44c-.298-.15-1.764-.87-2.037-.97-.273-.1-.47-.15-.67.15-.198.3-.77 1.01-.94 1.22-.17.21-.34.23-.64.08-.3-.15-1.26-.465-2.4-1.485-.885-.79-1.48-1.77-1.65-2.07-.17-.3-.02-.46.13-.61.13-.13.3-.35.45-.52.15-.17.2-.3.3-.5.1-.2.05-.38-.03-.53-.08-.15-.67-1.62-.92-2.22-.24-.59-.49-.51-.67-.52-.17-.01-.37-.01-.57-.01-.2 0-.53.08-.8.38-.27.3-1.04 1.02-1.04 2.49 0 1.47 1.07 2.89 1.22 3.09.15.2 2.11 3.22 5.11 4.52.71.31 1.27.49 1.7.63.72.23 1.37.2 1.89.12.58-.09 1.76-.72 2.01-1.42.25-.7.25-1.3.17-1.42-.08-.12-.27-.19-.57-.34z\"\/><\/svg>\n        BOOK INSPECTION NOW\n    <\/a>\n    <p style=\"margin-top: 15px; font-size: 14px; opacity: 0.8; font-style: italic;\">Response within 2 hours \u2022 Expert Singapore Technicians<\/p>\n<\/div>\n\n<script>\n    document.addEventListener(\"DOMContentLoaded\", function() {\n        var url = window.location.href;\n        var msg = \"Hi Singapore Aircon Servicing, my trunking is sweating and I need an inspection. Page Source: \" + url;\n        document.getElementById(\"cta-wa-link\").href = \"https:\/\/wa.me\/6582548688?text=\" + encodeURIComponent(msg);\n    });\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>First and foremost, condensation in aircon trunking is quite normal because after the air conditioner cools or warms up your house, some of the moisture or water droplets formed during<\/p>\n","protected":false},"author":1,"featured_media":128,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":{"telephone":"+6584888444"},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-127","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aircon Trunking Condensation: Causes, Fixes &amp; When to Worry<\/title>\n<meta name=\"description\" content=\"Is your aircon trunking leaking water? 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Learn what causes condensation in AC pipes, if it&#039;s normal, and how to stop trunking leaks before they damage your home.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/articles\/what-causes-condensation-in-aircon-trunking.html\" \/>\n<meta property=\"og:site_name\" content=\"Singapore Aircon Servicing\u2122\" \/>\n<meta property=\"article:published_time\" content=\"2019-08-24T05:33:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-04T01:39:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.aircon-servicing.com.sg\/wp-content\/uploads\/2019\/08\/aircon-condensation.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"359\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"zinruss\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"zinruss\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.aircon-servicing.com.sg\\\/articles\\\/what-causes-condensation-in-aircon-trunking.html#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.aircon-servicing.com.sg\\\/articles\\\/what-causes-condensation-in-aircon-trunking.html\"},\"author\":{\"name\":\"zinruss\",\"@id\":\"https:\\\/\\\/www.aircon-servicing.com.sg\\\/#\\\/schema\\\/person\\\/f4a4963c5b94251b69ae817d3144eafa\"},\"headline\":\"What Causes Condensation In Aircon Trunking? 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