Maintenance of a hardened clay tennis court without cutting

Over time, clay tennis courts tend to become excessively hard, making the surface compact and uneven. Simply adding new clay is not enough to fix this, because it won’t bond properly with the hardened layer underneath and will just “float” on top of the court.
Often, the ideal solution would be a complete resurfacing of the top layer. However, it’s not always possible to take such a radical approach — due to lack of time, budget, or simply because you want to extend the court’s life for a few more weeks before scheduling more structural work.
For these situations, there is a maintenance method using flooding that helps level uneven areas and improve playability without resurfacing the court.

Purpose of the intervention

The goal is to make the hardened layer grippy, allowing the new clay to bond with the layer underneath. To achieve this, we use water and brushing to create a rougher base onto which the new clay can adhere.
It’s important to clarify that this is not a permanent solution or equivalent to professional resurfacing — it’s a temporary fix to restore playable conditions while waiting for more thorough work.

Required equipment

• One person for approximately half a day (per court)
• Straightedge
• Drag brush
• Net leveling mat

Procedure

1. Flood the area to be treated
   Begin by thoroughly watering the court or the section you want to treat, until you create an actual puddle.
2. Let it dry
   Allow the court to dry until there’s about 1 mm of water left on the surface. This is the ideal moment: the top layer will be softened, but not too muddy.
3. Brush the surface
   Use the brush with circular movements over the area you want to fix. This will create a rougher, grippier texture.
4. Spread the clay
   Spread a thin layer (2–3 mm maximum) of new clay using the straightedge.
5. Pass the leveling mat
   Use the mat in circular motions to smooth the worked surface and remove any marks left by the straightedge.
6. Water the court
   Water the court again (without flooding it).

Expected result

After this treatment, the court will be more even and regular, with fewer bumps and better clay cohesion. It will be playable in acceptable conditions for a few weeks while waiting for more structural maintenance.

Important notes

• This is not a permanent alternative to milling, but a stopgap intervention.
• We recommend adding at most 2–3 mm of clay.

For more information about our clay court maintenance services or for personalized advice, contact us.

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