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About Court Resurfacing & Repairs
Sport court repairs cover everything from a single hairline crack on a home tennis court to a sunken section of a school's multi-sport surface, on tennis, basketball, netball and combination multi-sport courts across Germiston, the East Rand and Johannesburg. Tarworks Construction repairs the surface itself, and, where the damage traces back to it, the base underneath: crack filling and patching, levelling sunken or heaved sections, correcting drainage that leaves a court standing in water, and full acrylic resurfacing with fresh line marking once the surface is sound again. The same 15-person crew and in-house plant we use to build a new court does the repair, so if a crack keeps coming back after a patch, we can excavate and fix the base underneath it rather than resurfacing over the same problem a second time.
What's Included
- Full court assessment of cracks, falls and base
- Confirms if damage is surface-only or reaches base
- Cracks cleaned, routed and filled with acrylic filler
- Larger cracks and holes patched and levelled flat
- Excavation and re-compaction of failed base sections
- Drainage and falls corrected so water runs off
- Acrylic resurfacing of repaired area or full court
- Lines re-marked to correct dimensions per sport
Our Process
- 1
Assess the Court
We walk the court with you, checking every crack for depth and width, testing the falls for correct drainage, and probing suspect areas to see whether a problem is confined to the coating or has reached the base. Findings and the recommended repair go to you in writing before anything is quoted.
- 2
Repair Cracks and Level
Surface cracks are cleaned out, routed where needed, and filled with an acrylic-based crack filler suited to the court's surface type. Larger cracks and holes are patched with a levelling compound and worked flat so the repair doesn't read as a bump or dip once cured.
- 3
Correct the Base and Drainage
Where a crack or sunken section traces back to the base, we excavate the affected area, re-compact it in layers to match the surrounding court, and correct the fall so water runs off instead of pooling again. This is the stage that decides whether a repair lasts a season or lasts for years.
- 4
Resurface and Line Mark
Once cracking, levelling and base work is done, we apply an acrylic coating system across the repaired area or the full court, and re-mark the lines to the correct dimensions for the sport it's used for — tennis, basketball, netball, or a combination layout.
Project Gallery
Court Resurfacing & Repairs FAQ
What are the signs that a tennis or sport court needs repair?
Visible cracking is the most common one, whether that is a fine hairline crack or a wider, branching alligator-pattern crack. Standing water after rain, sections that have sunk or gone visibly uneven, faded colour or lines, and a surface that feels slippery or gives an unpredictable ball bounce are the other signs we see most often. Any of these can be repaired without rebuilding the whole court if they are caught before the damage spreads.
Can cracks in a tennis or sport court be repaired, or does the whole court need resurfacing?
Most cracks can be repaired without resurfacing the whole court. A hairline or surface-only crack is cleaned, routed and filled with an acrylic crack filler as a targeted repair. If a crack has already reached the base, or if a court has widespread cracking across most of its surface, a full or partial resurfacing is usually more cost-effective than patching dozens of individual cracks one at a time.
What causes cracks in a sport court surface?
Temperature cycling is the biggest factor on the Highveld: the surface expands in the heat and contracts overnight, and that daily movement eventually opens up cracks, especially where the base underneath was not compacted properly to begin with. Tree roots pushing up from underneath, a base that has settled unevenly, and general UV and weather ageing of the acrylic coating over time all contribute as well.
Why does my court have standing water after it rains?
Standing water means the court's fall, the slight slope built into the surface to shed water, has either never been correct or has settled out of true over time. Once water sits on a court instead of running off it, it works its way into cracks or joints and starts undermining the base from below, which is how a drainage problem turns into a structural one if left unaddressed.
Can a sunken or uneven section of a court be fixed without rebuilding the whole surface?
Yes, in most cases. We excavate just the affected section, rebuild and compact the base to match the level of the surrounding court, and tie the new surface back into the existing one so there is no visible seam once it is resurfaced. A full court rebuild is only needed where base failure is widespread rather than isolated to one section.
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