Tennis Court Drainage: Why It Matters & How We Solve It

A tennis court might look perfect when it’s dry—but when rain hits, poor drainage can ruin everything. From puddles and cracks to moss growth and surface damage, drainage problems can shorten the life of your court and make it unsafe for players.

At William Gift Civil (Pty) Ltd, we’ve seen it all. Here’s why good drainage is essential for your tennis court—and how we fix it.

Why Drainage is So Important?

Tennis courts are designed to be flat—but not completely level. A small slope (typically 1%) allows water to run off the surface without pooling. If your court holds water for hours after rain, it could mean:

•The slope is incorrect

•Drainage channels are blocked

•The surface is worn, sunken, or uneven

•Surrounding soil is overgrown and affecting runoff

Left untreated, these issues can lead to:

•Slippery, dangerous playing conditions

•Cracks and surface erosion

•Shortened lifespan of your court

•Constant maintenance and frustration

How We Solve Drainage Problems

We assess your site’s surface, slope, subbase, and surrounding areas before deciding on a fix.

✅ Slope Correction
We regrade or overlay sections of the court to restore the correct water runoff slope (about 1%).

✅ Crack & Surface Patching
Low areas that collect water are patched with asphalt and compacted to bring them level.

✅ French Drains or Channel Drains
We install underground drainage systems that redirect water away from the court area—ideal for sites with heavy clay soil or low points.

✅ Edge Trimming & Weed Control
Grass and soil that creep onto the court’s edge can block natural runoff. We cut and clear the edges for free water movement.

Client Example: Sandringham tennis club

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Problem:

•90m² grass entrance was allowing water and mud onto court

•Drainage around court was poor due to soil buildup

Solution:

•Asphalt laid on entrance area

•Drainage slope restored around court perimeter

•Surface patched and compacted

•No more flooding or tracking of dirt onto the playing area

Signs Your Court Has Drainage Issues

• Puddles or damp patches that remain for hours after rain

•Moss, mould, or algae buildup on one side

•Cracks forming near puddled areas

•Water flowing toward the court from nearby land

•Players slipping or complaining about bounce inconsistency

Drainage Prevention Tips

•Keep edges trimmed and clean

•Pressure wash moss and mould as needed

•Fill cracks early before water enters

•Inspect the slope and surface at least once a year

•Avoid heavy vehicles on or near the court base

Expert Drainage Done Right

We’ve helped schools, municipalities, and sports clubs across Gauteng and beyond fix their court drainage issues—often without needing a full rebuild.

📧 william@williamgiftcivil.co.za
📞 +27 82 428 1251

Let us inspect your court for free and give you a lasting solution.