{"id":2020,"date":"2026-08-25T06:27:42","date_gmt":"2026-08-25T06:27:42","guid":{"rendered":"https:\/\/www.waterleakservices.es\/top-causes-of-leaks-under-flooring\/"},"modified":"2026-08-25T06:27:42","modified_gmt":"2026-08-25T06:27:42","slug":"top-causes-of-leaks-under-flooring","status":"publish","type":"post","link":"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/","title":{"rendered":"Top Causes of Leaks Under Flooring in Homes"},"content":{"rendered":"<p>A warm patch of tile, a musty smell that will not clear, or a water bill that has quietly risen can all point to the same hidden problem. The top causes of leaks under flooring are not always dramatic, and that is exactly why they can cause so much damage before they are found. Water can travel beneath tiles, laminate, concrete screeds and engineered flooring, appearing some distance from the actual fault.<\/p>\n<p>For homeowners in Spain, where tiled floors and concrete construction are common, an underfloor leak may stay hidden until damp marks appear on a wall, grout begins to discolour, or mould develops around skirting boards. Acting early protects the home, avoids unnecessary excavation and helps keep repair costs under control.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Top_Causes_of_Leaks_Under_Flooring\" >Top Causes of Leaks Under Flooring<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Damaged_or_ageing_water_supply_pipes\" >Damaged or ageing water supply pipes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Heating_pipe_leaks_beneath_the_screed\" >Heating pipe leaks beneath the screed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Leaking_waste_pipes_and_drains\" >Leaking waste pipes and drains<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Failed_shower_waterproofing_and_grout\" >Failed shower waterproofing and grout<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Appliance_connections_and_hidden_kitchen_leaks\" >Appliance connections and hidden kitchen leaks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Cracked_slabs_and_movement_around_buried_pipes\" >Cracked slabs and movement around buried pipes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#External_water_entering_through_the_floor_or_walls\" >External water entering through the floor or walls<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Condensation_and_moisture_beneath_floating_floors\" >Condensation and moisture beneath floating floors<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Warning_Signs_That_Need_Investigation\" >Warning Signs That Need Investigation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#Why_Finding_the_Exact_Source_Matters\" >Why Finding the Exact Source Matters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"http:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#What_to_Do_If_You_Suspect_a_Leak_Under_the_Floor\" >What to Do If You Suspect a Leak Under the Floor<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Top_Causes_of_Leaks_Under_Flooring\"><\/span>Top Causes of Leaks Under Flooring<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Damaged_or_ageing_water_supply_pipes\"><\/span>Damaged or ageing water supply pipes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The most common source of water beneath a floor is a leak on a pressurised supply pipe. These pipes carry cold or hot water continuously, so even a pinhole-sized fault can release a significant amount of water over time.<\/p>\n<p>Pipework can deteriorate due to age, corrosion, poor original installation or movement within the building. In some properties, older pipe joints and fittings are particularly vulnerable. A small crack may also develop where a pipe passes through concrete or changes direction beneath the floor.<\/p>\n<p>A supply-pipe leak often causes a <a href=\"http:\/\/www.waterleakservices.es\/es\/why-is-my-water-bill-suddenly-high\/\">water meter<\/a> to continue moving when all taps and appliances are turned off. You may notice reduced water pressure, a persistent damp smell, or flooring that feels unusually warm if the fault is on a hot-water line. However, not every underfloor supply leak produces obvious surface symptoms at first.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Heating_pipe_leaks_beneath_the_screed\"><\/span>Heating pipe leaks beneath the screed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Homes with central heating, underfloor heating or radiator pipework routed through floors can develop leaks on the heating circuit. These are often difficult to spot because the system may only lose a small amount of water at a time.<\/p>\n<p>Signs can include a boiler repeatedly losing pressure, cold areas in a heated floor, or radiators needing frequent topping up. If corrosion inhibitor has been used in the system, water escaping from the pipe may leave a faint stain or residue around a crack in the floor or along wall edges.<\/p>\n<p>It is worth treating recurring boiler pressure loss seriously. A faulty pressure relief valve or boiler issue can also be responsible, so a proper assessment is needed before assuming the pipework beneath the floor is at fault.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Leaking_waste_pipes_and_drains\"><\/span>Leaking waste pipes and drains<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Waste pipes beneath bathrooms, kitchens, utility rooms and shower areas are another major cause of underfloor moisture. Unlike mains water pipes, drainage pipework is not continuously pressurised. It tends to leak only when a shower is running, a washing machine drains or a basin is emptied.<\/p>\n<p>This intermittent nature can make the problem confusing. The floor may seem dry for days, then a damp patch or odour returns after the bathroom has been used. Cracked pipes, failed joints, displaced connections and poor seals around shower wastes are all possible causes.<\/p>\n<p>Drain leaks can bring more than water into the property. Unpleasant smells, bacteria and staining may follow, particularly where wastewater has been escaping into a void or beneath a tiled floor for some time.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Failed_shower_waterproofing_and_grout\"><\/span>Failed shower waterproofing and grout<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Not all water found beneath bathroom flooring comes from a broken pipe. A shower enclosure can allow water through failed silicone, cracked grout, loose tiles or damaged waterproofing behind the finished surface.<\/p>\n<p>Grout is not a complete waterproof barrier. It can absorb water, especially when cracked or poorly maintained. If the waterproof layer beneath the tiles has failed, regular shower use may slowly feed water into the floor structure and adjoining walls.<\/p>\n<p>This is particularly common where a shower tray has moved slightly, where wall-to-floor seals have broken down, or where a wet-room area was not waterproofed correctly during installation. The visible defect may look minor, but the moisture path behind the tiles can be extensive.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Appliance_connections_and_hidden_kitchen_leaks\"><\/span>Appliance connections and hidden kitchen leaks<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Dishwashers, washing machines, fridge freezers with water dispensers and water heaters can all leak into or beneath flooring. Flexible hoses, isolation valves and appliance waste connections are often hidden behind cabinets, making a slow leak easy to miss.<\/p>\n<p>A kitchen leak may first show as swollen laminate, lifted flooring, a soft cupboard base or staining at the bottom of a nearby wall. In a tiled kitchen, there may be little visible evidence until moisture has already travelled below the surface.<\/p>\n<p>Checking accessible hoses is sensible, but avoid moving heavy appliances or removing fitted units if the source is unclear. A visible puddle can be misleading, as water may have travelled from a connection at the back of the room.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cracked_slabs_and_movement_around_buried_pipes\"><\/span>Cracked slabs and movement around buried pipes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Buildings move slightly over time. Heat, settlement, changes in ground conditions and normal structural movement can place stress on pipework embedded within a concrete slab. A pipe may rub against surrounding material, a joint may weaken, or movement may open a tiny crack.<\/p>\n<p>This risk can be higher where pipework was installed without adequate protection or where previous building work has altered floor levels. In warmer parts of Spain, repeated temperature changes can also affect materials differently, especially in exposed ground-floor areas.<\/p>\n<p>A crack in the slab itself does not automatically mean there is a leak. But if moisture is present around a crack, it is important to establish whether the water is coming from a pipe, the ground, a nearby bathroom or an external source.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"External_water_entering_through_the_floor_or_walls\"><\/span>External water entering through the floor or walls<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Rainwater, irrigation water and poor external drainage can sometimes be mistaken for an underfloor plumbing leak. Water may enter through damaged terraces, failed damp-proofing, cracks in external walls or poorly sealed thresholds, then collect beneath internal flooring.<\/p>\n<p>This is more likely after heavy rain, garden watering or washing down terraces. The problem may appear seasonal rather than constant. Properties with ground-level rooms, enclosed patios or older waterproofing details can be more exposed.<\/p>\n<p>The distinction matters because the repair is completely different. Replacing an internal pipe will not solve water entering from outside, while sealing an external wall will not stop a leaking water line beneath the screed.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Condensation_and_moisture_beneath_floating_floors\"><\/span>Condensation and moisture beneath floating floors<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Laminate and some engineered floors can trap moisture beneath their surface. In certain cases, what looks like a leak is condensation caused by a cold subfloor meeting humid indoor air. Inadequate vapour barriers, limited ventilation or damp rising through the slab can all contribute.<\/p>\n<p>Condensation usually develops gradually and may affect a broad area rather than one concentrated point. Boards may cup, edges may lift and a musty smell may develop. Even so, it should not be dismissed as a flooring problem until a hidden leak has been ruled out.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Warning_Signs_That_Need_Investigation\"><\/span>Warning Signs That Need Investigation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A hidden leak rarely announces itself with a burst pipe and a flooded room. More often, homeowners notice one or two small changes that gradually become harder to ignore. Keep an eye on unexplained increases in water use, water-meter movement when no water is being used, warm or cold patches underfoot, cracking grout, loose tiles, lifting laminate and damp marks at the base of walls.<\/p>\n<p>Musty odours and <a href=\"http:\/\/www.waterleakservices.es\/es\/mould-caused-by-water-leak-what-to-do\/\">recurring mould<\/a> are also warning signs, particularly if cleaning and ventilation have not improved the issue. Do not assume mould is simply caused by humidity. Moisture from below the floor can feed it continuously.<\/p>\n<p>If the problem follows shower use, appliance cycles or rainfall, make a note of the timing. This information helps narrow down whether the likely cause is a drainage fault, appliance connection, waterproofing failure or external water ingress.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Finding_the_Exact_Source_Matters\"><\/span>Why Finding the Exact Source Matters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Lifting tiles at random is expensive, disruptive and not always successful. Water often travels along pipes, beneath screeds or through wall cavities before becoming visible, so the wettest area is not necessarily where the leak began.<\/p>\n<p>Specialist leak detection uses a combination of methods depending on the suspected pipework and the symptoms. Acoustic testing can help locate pressurised water escaping from a pipe. Water pressure testing can confirm whether a supply line is losing water, while tracer gas testing can identify very small leaks beneath solid floors. <a href=\"http:\/\/www.waterleakservices.es\/es\/dye-leak-detection-for-pipes-explained\/\">Dye testing<\/a> may be useful for showers, drains and waterproofing defects.<\/p>\n<p>The best method depends on the property and the type of leak. A drainage issue needs a different approach from a central-heating leak, and external water ingress needs a broader assessment than a simple pressure test. Accurate diagnosis protects you from paying for unnecessary repairs and reduces the amount of flooring that needs to be opened.<\/p>\n<p>Water Leak Services Spain provides non-invasive testing for homeowners who need a clear answer before repairs begin. With a no find, no fee promise, the focus is on locating the source precisely and limiting disruption to your home.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_to_Do_If_You_Suspect_a_Leak_Under_the_Floor\"><\/span>What to Do If You Suspect a Leak Under the Floor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If you suspect a pressurised water leak, turn off the internal stopcock if water is actively escaping or damage is worsening. If there is no visible flooding, avoid drilling, lifting tiles or using sealants as a quick fix. These actions can make professional testing harder and may conceal the evidence needed to identify the cause.<\/p>\n<p>Take photographs of any damp patches, tile changes or visible staining, and note when you first noticed them. If safe to do so, check whether the water meter moves after taps, appliances and irrigation systems are switched off. For boiler-pressure concerns, record how quickly the pressure drops rather than repeatedly refilling the system.<\/p>\n<p>A hidden leak does not always require a major floor replacement. The right investigation can often pinpoint a small repair area, giving you a practical route back to a dry, secure home. The sooner the cause is confirmed, the sooner you can stop water quietly damaging the space beneath your feet.<\/p>","protected":false},"excerpt":{"rendered":"<p>Learn the top causes of leaks under flooring, warning signs to watch for and how non-invasive testing can protect your home from costly water damage in Spain.<\/p>","protected":false},"author":0,"featured_media":2021,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2020","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Top Causes of Leaks Under Flooring in Homes - Water Leak Services<\/title>\n<meta name=\"description\" content=\"Learn the top causes of leaks under flooring, warning signs to watch for and how non-invasive testing can protect your home from costly water damage in Spain.\" \/>\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.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top Causes of Leaks Under Flooring in Homes - Water Leak Services\" \/>\n<meta property=\"og:description\" content=\"Learn the top causes of leaks under flooring, warning signs to watch for and how non-invasive testing can protect your home from costly water damage in Spain.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/\" \/>\n<meta property=\"og:site_name\" content=\"Water Leak Services\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-25T06:27:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.waterleakservices.es\/wp-content\/uploads\/2026\/08\/top-causes-of-leaks-under-flooring-in-homes-featured.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data1\" content=\"8 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"Top Causes of Leaks Under Flooring in Homes\",\"datePublished\":\"2026-08-25T06:27:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/\"},\"wordCount\":1644,\"image\":{\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/www.waterleakservices.es\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/top-causes-of-leaks-under-flooring-in-homes-featured.webp\",\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/\",\"url\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/\",\"name\":\"Top Causes of Leaks Under Flooring in Homes - Water Leak Services\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/www.waterleakservices.es\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/top-causes-of-leaks-under-flooring-in-homes-featured.webp\",\"datePublished\":\"2026-08-25T06:27:42+00:00\",\"author\":{\"@id\":\"\"},\"description\":\"Learn the top causes of leaks under flooring, warning signs to watch for and how non-invasive testing can protect your home from costly water damage in Spain.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/#primaryimage\",\"url\":\"http:\\\/\\\/www.waterleakservices.es\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/top-causes-of-leaks-under-flooring-in-homes-featured.webp\",\"contentUrl\":\"http:\\\/\\\/www.waterleakservices.es\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/top-causes-of-leaks-under-flooring-in-homes-featured.webp\",\"width\":1536,\"height\":1024,\"caption\":\"Top Causes of Leaks Under Flooring in Homes\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/es\\\/top-causes-of-leaks-under-flooring\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.waterleakservices.es\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Top Causes of Leaks Under Flooring in Homes\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.waterleakservices.es\\\/#website\",\"url\":\"https:\\\/\\\/www.waterleakservices.es\\\/\",\"name\":\"Water Leak Services\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.waterleakservices.es\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Top Causes of Leaks Under Flooring in Homes - Water Leak Services","description":"Learn the top causes of leaks under flooring, warning signs to watch for and how non-invasive testing can protect your home from costly water damage in Spain.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/","og_locale":"es_ES","og_type":"article","og_title":"Top Causes of Leaks Under Flooring in Homes - Water Leak Services","og_description":"Learn the top causes of leaks under flooring, warning signs to watch for and how non-invasive testing can protect your home from costly water damage in Spain.","og_url":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/","og_site_name":"Water Leak Services","article_published_time":"2026-08-25T06:27:42+00:00","og_image":[{"width":1536,"height":1024,"url":"https:\/\/www.waterleakservices.es\/wp-content\/uploads\/2026\/08\/top-causes-of-leaks-under-flooring-in-homes-featured.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","twitter_misc":{"Tiempo de lectura":"8 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#article","isPartOf":{"@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/"},"author":{"name":"","@id":""},"headline":"Top Causes of Leaks Under Flooring in Homes","datePublished":"2026-08-25T06:27:42+00:00","mainEntityOfPage":{"@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/"},"wordCount":1644,"image":{"@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#primaryimage"},"thumbnailUrl":"http:\/\/www.waterleakservices.es\/wp-content\/uploads\/2026\/08\/top-causes-of-leaks-under-flooring-in-homes-featured.webp","articleSection":["Uncategorized"],"inLanguage":"es"},{"@type":"WebPage","@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/","url":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/","name":"Top Causes of Leaks Under Flooring in Homes - Water Leak Services","isPartOf":{"@id":"https:\/\/www.waterleakservices.es\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#primaryimage"},"image":{"@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#primaryimage"},"thumbnailUrl":"http:\/\/www.waterleakservices.es\/wp-content\/uploads\/2026\/08\/top-causes-of-leaks-under-flooring-in-homes-featured.webp","datePublished":"2026-08-25T06:27:42+00:00","author":{"@id":""},"description":"Learn the top causes of leaks under flooring, warning signs to watch for and how non-invasive testing can protect your home from costly water damage in Spain.","breadcrumb":{"@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#primaryimage","url":"http:\/\/www.waterleakservices.es\/wp-content\/uploads\/2026\/08\/top-causes-of-leaks-under-flooring-in-homes-featured.webp","contentUrl":"http:\/\/www.waterleakservices.es\/wp-content\/uploads\/2026\/08\/top-causes-of-leaks-under-flooring-in-homes-featured.webp","width":1536,"height":1024,"caption":"Top Causes of Leaks Under Flooring in Homes"},{"@type":"BreadcrumbList","@id":"https:\/\/www.waterleakservices.es\/es\/top-causes-of-leaks-under-flooring\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.waterleakservices.es\/"},{"@type":"ListItem","position":2,"name":"Top Causes of Leaks Under Flooring in Homes"}]},{"@type":"WebSite","@id":"https:\/\/www.waterleakservices.es\/#website","url":"https:\/\/www.waterleakservices.es\/","name":"Water Leak Services","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.waterleakservices.es\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"}]}},"_links":{"self":[{"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/posts\/2020","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/comments?post=2020"}],"version-history":[{"count":0,"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/posts\/2020\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/media\/2021"}],"wp:attachment":[{"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/media?parent=2020"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/categories?post=2020"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.waterleakservices.es\/es\/wp-json\/wp\/v2\/tags?post=2020"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}