The short answer
Water Damage on Patios
Water is a patio's main enemy. Rain can pool on the surface, especially if the patio lacks proper drainage or has low spots. Over time, standing water seeps into tiny cracks and pores in concrete, brick, or pavers, weakening the structure from within.
In colder months, trapped water freezes and expands, making cracks wider and deeper. This freeze-thaw cycle can cause concrete to spall, where the top layer flakes away. Even in warmer climates, spring thunderstorms can dump heavy rain, and if your patio is not sealed, moisture finds a way in. Check for puddles after a storm and address drainage issues early.
- Cracks from freeze-thaw cycles
- Spalling or flaking of concrete surfaces
- Efflorescence, a white chalky residue from water
- Mold and mildew growth in shaded or damp areas
- Rot or warping of wooden patio structures
Weather and Sun Effects
Sun and heat cause their own kind of damage. Ultraviolet rays fade the color of stamped concrete, pavers, and outdoor tiles. Prolonged exposure can make surfaces brittle and more prone to cracking under weight or impact.
Hail is another risk, especially during spring storms. Hailstones can chip or dent concrete, break tiles, and dent metal fixtures. Keep an eye on weather forecasts and consider moving loose furniture indoors when severe storms are predicted. Regular sealing can help protect against both sun and moisture damage.
Structural and Foundation Issues
Patios are built on a base of soil and gravel. If that base shifts or erodes, the patio can settle unevenly, leading to cracks, dips, or even sections that tilt. Poor drainage from gutters or downspouts can wash away the base material over time.
Tree roots are another culprit. Roots from nearby trees can grow under the patio, lifting and cracking the surface. If you notice new cracks or a change in how the patio feels underfoot, the issue may be below the surface. A water damage inspection can help identify the source and extent of the problem.
Mold and Mildew Growth
Patios that stay damp or shaded are prone to mold and mildew. These growths appear as dark spots or slimy patches on concrete, wood, or stone. They are not just unsightly; they can make surfaces slippery and pose a health risk, especially for people with allergies or respiratory issues.
Mold often grows after a period of heavy rain or if the patio is near a sprinkler. To reduce growth, keep the patio clean and dry, trim back overhanging branches, and ensure water drains away. If mold has already taken hold, a thorough cleaning with a mold-killing solution may help, but for deep infestations, consider consulting a mold professional.
When to Get Professional Help
Some patio damage is cosmetic and can be handled with DIY repairs, such as filling small cracks or resealing the surface. But if you see large cracks, shifting sections, or signs of water getting into your home's foundation, it's time to call in the pros.
Water damage pros can assess the extent of the damage, identify underlying causes, and recommend a course of action. They have the equipment to dry out saturated areas and address mold safely. If your patio is part of a larger structure, like a townhouse or hotel, the repair process may involve more complex coordination.
Policies vary, and your insurer decides what is covered. Check your policy to see if patio damage is included. The cost of repairs depends on the materials, the size of the patio, and the severity of the damage.
- Large cracks wider than a quarter inch
- Patio pulling away from the house
- Visible sinking or uneven sections
- Water seeping into your crawlspace or lower level
- Mold covering more than a small area
Water damage does not wait
Call (817) 799-6732 any time, day or night, and describe what happened.
Call Now (817) 799-6732Frequently asked questions
Can I repair patio cracks myself?
Small, hairline cracks can often be filled with a concrete crack filler or sealant. Clean the crack, let it dry, and apply the filler. For larger cracks or if the patio is shifting, a professional assessment is safer to avoid making the problem worse.
How do I keep my patio from fading?
Fading comes from UV exposure. Applying a quality sealer or patio paint with UV protection can help. Also, consider using outdoor rugs, furniture, or shade sails to reduce direct sunlight on the surface. Reseal every few years to maintain protection.
Does homeowner's insurance cover patio damage?
Coverage depends on your policy and the cause of damage. Some policies cover sudden events like hail or tree falls, but gradual wear or settling may not be covered. Review your policy documents and talk to your insurance company to understand what is included.