When installing pickleball flooring over an existing concrete base, proper preparation is critical to ensure long-term performance, durability, and consistent playing conditions.
Even if the existing concrete appears structurally sound, the surface must still be inspected, repaired, cleaned, and prepared correctly before any sports flooring is installed.
Before any preparation begins, inspect the slab carefully for:
• Cracks
• Uneven areas
• Movement in the slab
• Surface contamination
• Existing coatings or paint
• Moisture issues
• Hollow or weak concrete
• Loose or flaking surface material
The slab must be structurally stable before flooring installation proceeds.
The concrete surface should be as level and smooth as possible.
Inspect for:
• High spots
• Low spots
• Uneven joins
• Surface waves
• Old repair areas
Small imperfections can transfer through sports flooring systems and affect both appearance and ball performance.
• Grind down high spots
• Fill low areas with suitable levelling compound
• Feather rough transitions
• Recheck flatness across the full court area
Small non-moving cracks should be:
• Cleaned out
• Filled with appropriate crack repair compound
• Sanded or ground flush once cured
Existing expansion joints must not simply be covered over without consideration.
Depending on the flooring system:
• Flexible sealants such as silicone may be used
• Some joints may need specialised joint treatment
• Active movement joints should remain functional
Improper treatment of expansion joints may cause flooring separation later.
Any loose or deteriorated concrete should be removed and repaired before installation.
Areas with:
• Spalling
• Crumbling
• Hollow spots
• Weak patches
must be stabilised prior to flooring installation.
The concrete surface must be completely clean before flooring installation.
Remove all:
• Dust
• Dirt
• Oil
• Grease
• Paint
• Existing coatings
• Adhesive residue
• Sealers
• Silicone contamination
• Loose particles
Contaminants can prevent adhesives from bonding correctly.
Mechanical grinding is strongly recommended for existing slabs.
Grinding helps:
• Open the concrete surface
• Remove weak surface laitance
• Improve adhesive bonding
• Remove old coatings and contaminants
• Create a more consistent substrate
Diamond grinding equipment is commonly used for sports flooring preparation.
After grinding:
• Vacuum the slab thoroughly
• Ensure no dust remains
Existing slabs can still contain moisture even years after installation.
Moisture testing is highly recommended before installing pickleball flooring.
High moisture levels can cause:
• Adhesive failure
• Bubbling
• Surface lifting
• Premature flooring damage
If excessive moisture is present:
• Moisture barrier systems may be required
• Additional drying time may be needed
• Professional assessment may be recommended
For outdoor pickleball courts, check that the slab drains correctly.
The existing base should not allow:
• Standing water
• Ponding
• Water trapping beneath flooring systems
Minor falls for drainage are typically recommended for outdoor applications.
Depending on the flooring system and adhesive being used:
• Primers may be required
• Moisture sealers may be recommended
• Surface strengthening products may improve adhesion
Always follow the flooring manufacturer’s installation specifications.
Before flooring installation:
• Vacuum the entire slab thoroughly
• Remove all remaining dust
• Ensure the surface is dry
• Ensure no debris remains
A clean surface is essential for proper flooring adhesion and long-term performance.
Before installing the pickleball flooring system, confirm:
✔ Concrete is structurally sound
✔ Surface is level and smooth
✔ Cracks repaired
✔ Expansion joints treated correctly
✔ Surface mechanically cleaned/grinded
✔ Moisture levels acceptable
✔ Drainage checked for outdoor courts
✔ Surface free from dust and contaminants
✔ Correct adhesive system selected
Some portable or modular pickleball flooring systems can be installed without full adhesive fixing.
These systems may use:
• Loose-lay installation
• Perimeter fixing
• Double-sided tape systems
Permanent sports flooring installations generally require:
• Full adhesive bonding
• Properly prepared concrete
• Stable moisture conditions
• Commercial-grade sports flooring adhesives
Two-component (2K) sports flooring adhesives are commonly used for high-performance court installations.
An existing concrete slab can often provide an excellent foundation for pickleball flooring — but only if properly prepared.
Good subfloor preparation helps ensure:
• Better flooring lifespan
• Consistent ball bounce
• Improved player comfort
• Stronger adhesive bonding
• Reduced risk of future flooring issues
For both residential and commercial pickleball courts, subfloor preparation should always be treated as one of the most important stages of the installation process.
