You can repair some intact loose floor tiles without lifting them by injecting a suitable adhesive into an accessible void over a sound substrate. Floor-Fix Pro Injectafix is designed for this repair. First check that the tile, substrate and cause of movement are suitable; a hollow sound alone is not a diagnosis.
When injection repair makes sense
| Condition | Next step |
|---|---|
| An intact loose tile, sound substrate and accessible void | Check compatibility and the Injectafix instructions for an injection repair. |
| A hollow sound without confirmed movement | Assess the tile and installation before deciding that a repair is needed. |
| Cracked-through tiles, rot, active water ingress, tenting or widespread movement | Investigate and repair the underlying fault; adhesive injection is not a structural repair. |
Choose the adhesive format
Injectafix Pro 300ml / Precision is a cartridge used with a caulking gun. Injectafix Easy Squeeze 300ml contains the same adhesive formula in a squeezable tube that needs no gun. Follow the instructions supplied with your chosen format for the access-hole size and tip preparation.
Prepare the recommended tools, cleaning materials, suitable weight and matching grout before starting. Check compatibility with the floor, any waterproofing system and underfloor heating. Locate services before drilling and control the drilling depth as directed.
How to repair a suitable loose tile
Step 1: Assess the tile and substrate
Check the tile for movement and damage and inspect the surrounding floor. Tapping can help locate differences in sound, but does not prove the cause. Proceed only when the tile is intact and the substrate is sound.
Step 2: Prepare the grout-line access point
Follow the instructions for your Injectafix format to prepare an access point through the grout line. Check for concealed services and waterproofing, and do not drill into the subfloor.
Step 3: Remove loose dust
Clean the access point and surrounding surface as directed so loose dust does not obstruct adhesive flow or contaminate the repair.
Step 4: Inject the adhesive
Use a caulking gun for the Precision cartridge or squeeze the Easy Squeeze tube as directed. Apply through the prepared access point without excessive pressure; stop if the tile begins to lift.
Step 5: Seat and weight the tile
Follow the product instructions to seat the tile and apply a suitable weight while the adhesive cures. Keep the tile level with its neighbours.
Step 6: Clean excess immediately
Remove excess adhesive immediately using the method specified on the pack. Do not leave residue to harden on the floor surface.
Step 7: Allow the repair to cure
Keep the tile undisturbed and traffic off the repair for at least 24 hours as instructed. Follow the pack's curing requirements and confirm the tile is secure before returning it to use.
Step 8: Restore the grout
Once the bond has cured and the tile is stable, restore the grout line with a suitable matching grout such as Twist & Grout. Investigate continuing movement or recurring cracks before repeating the repair.
Why secure the tile before regrouting?
Grout fills the joint; it does not rebond a loose tile. If movement is causing the cracking, new grout can crack again until the cause is resolved. Read the cracked-grout diagnosis guide.
Common questions
How many tubes will I need?
The amount depends on the accessible void's size and depth, not just the visible tile area. Each Injectafix unit contains 300ml; check the current product page for pack quantities.
Is a hollow tile always loose?
No. Sound is an indicator to investigate, not proof that a tile needs injection. Check movement, tile condition and the substrate.
Can I walk on it straight away?
No. Keep traffic off while the adhesive cures and follow the pack instructions. Application time and time before returning the floor to use are different.
Choose Injectafix Precision, choose Easy Squeeze, or check which repair suits your floor.