Slab leaks are a hidden problem that can cause extensive damage if not detected early. But what exactly are slab leaks, what causes them, and how can you identify them before they lead to costly repairs? Here’s a guide to understanding slab leaks and how to spot the warning signs in your home.
What Causes Slab Leaks And How To Tell You Have One
Table of Contents
Causes of Slab Leaks
Here are some common factors that can lead to slab leaks and potential damage to your foundation.
Pipe Corrosion
Pipe corrosion is a common cause of slab leaks, especially in older homes where pipes deteriorate over time. Factors such as water pH, pipe material quality, and soil conditions contribute to corrosion. As pipes corrode, small leaks can form, allowing water to seep into the concrete foundation and cause damage.
High Water Pressure
Excessive water pressure strains pipes, particularly at joints and bends, making them more prone to leaks. This extra force can crack pipes and result in slab leaks. Regular plumbing inspections can help maintain safe water pressure levels, reducing the likelihood of leaks.
Shifting or Settling Foundation
Foundation shifts or settling, often due to soil expansion and contraction from moisture changes, can stress pipes under the slab, causing them to break or leak. This is common in areas with clay soil, which expands and contracts significantly with weather changes.
Poor Quality or Improperly Installed Pipes
Low-quality or poorly installed pipes are more susceptible to leaks from water pressure changes, soil movement, or corrosion. Over time, these pipes can weaken, leading to slab leaks.
Abrasion from Nearby Objects
Pipes sometimes come into contact with nearby materials like rocks, gravel, or concrete, leading to abrasion over time. Constant friction can wear down the pipe, causing leaks, making regular inspections crucial for identifying issues early.
Signs of Slab Leaks
Here are key signs to watch out for indicating a slab leak in your home.
Increased Water Bills
A sudden spike in your water bill without an obvious cause may signal a hidden leak. Since slab leaks occur beneath the foundation, they often go unnoticed, but the higher water usage will still be reflected on your bill.
Damp Spots or Warm Areas on Floors
Damp or warm spots on your floors may indicate a slab leak. Water pooling under the concrete slab can create “hot spots,” making certain areas of the floor feel warm—especially when the leak involves hot water pipes.
Mould or Mildew Growth
Excess moisture from slab leaks can encourage mould and mildew growth. If you notice a musty smell or mould appearing on floors or walls, it may be due to water seeping from a slab leak.
Cracks in the Walls or Floor
Water from a slab leak can weaken the foundation over time, leading to visible cracks in walls or floors. Such cracks may suggest a long-standing leak that’s causing structural issues and requiring prompt attention.
Sound of Running Water
Hearing running or dripping water when all taps are off is a strong sign of a hidden leak. This sound often results from water flowing from a damaged pipe beneath the slab and should be investigated to prevent further damage.
Why Prompt Action Is Important
Ignoring a slab leak can damage your home’s foundation, flooring, and even walls. Over time, the structural integrity of your home can weaken, leading to expensive repairs. Catching these leaks early through regular inspections and prompt action can prevent damage and save on costly repairs.
Contact Us for Burst Pipes & Water Leaks
At Nightcliff Plumbing & Gas, we handle burst pipes and water leaks, helping you protect your home with reliable, professional services. With expertise in detecting and repairing water leaks in Darwin, our team is here to provide prompt, high-quality support. Contact us today to safeguard your home from the effects of slab leaks and ensure your plumbing system stays in top condition.
