Tile Corner Trim – Internal & External Profiles
Tile corner trim profiles are essential for creating strong, clean, and crack-resistant corners in any tile installation. Whether you're working on a bathroom, kitchen, wet room, or commercial space, our range of tile corner trim provides protection and a flawless finish at internal and external tile junctions.
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View Corner Tile Trim | External Corner Trims | Internal Corner Trims
What Are Tile Corner Trims?
Tile corner trims are specially designed profiles that protect tiled corners and junctions from damage, cracking, or uneven grout lines. They're used to create smooth transitions at 90° angles and help achieve a professional finish while reinforcing tile edges.
- External corner trims: For outward-facing corners like pillar edges or tile box-outs
- Internal corner trims: For inward junctions such as wall-to-wall connections or floor-to-wall corners
Why Use Corner Tile Trims?
- Prevent tile edge chipping and cracking
- Create smooth 90° transitions
- Eliminate sharp edges in exposed corners
- Match finish and colour with surrounding tile trims
- Speed up installation and reduce grout failure at joints
Types of Corner Tile Trim Available
External Corner Tile Trim
Used where two tiled surfaces meet at an outward corner (e.g. wall corners, boxed pipework). Often designed with a rounded or square profile to match your edge trims.
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Internal Corner Trims
Perfect for inward junctions like inside shower enclosures or between walls. They improve water resistance and help prevent grout cracking or mould buildup.
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Tile Trim Corners
Used to neatly join two tile trims at corners (especially metal trims). These connectors ensure the finish remains flush and consistent.
Available Materials
- Aluminium – Lightweight and durable, available in brushed, polished, and matte finishes
- Stainless Steel – Highly durable and corrosion-resistant, ideal for wet rooms
- PVC – Affordable, versatile, and easy to install for internal corners
Where Are Corner Tile Trims Used?
- Bathroom external corners
- Shower niches and enclosures
- Kitchen tile box-outs and columns
- Wet room floor-to-wall junctions
- Commercial tiled walls and partitions
Choosing the Right Corner Trim
- Internal or External? Match the trim to the type of junction
- Material: Use stainless steel or aluminium for wet/hard-use areas; PVC for lighter-duty internal corners
- Finish: Match your main edge trim for a uniform look
Need help choosing? Contact our experts
Tile Trim Buying Guide
Installation Tips for Tile Corner Trims
- Cut trim profile to match the height of the tiled area
- Fit corner profile before laying surrounding tile edge trims
- Use appropriate adhesive and press firmly into place
- Ensure corner joints are tight and aligned
FAQs About Tile Corner Trims
Are tile corner trims necessary?
Yes — they protect tile corners from damage, improve waterproofing, and give a professional finish.
Can I match corner trims with straight edge trims?
Absolutely. Many corner trims are designed as companion pieces to straight or square edge tile trims in matching finishes and sizes.
Are there universal corner trims?
Some PVC and flexible profiles can be used for multiple applications, but specific internal/external profiles usually give the best result.
Shop Tile Corner Trims by Type
| External Corner Trims | Internal Corner Trims |
| All Tile Edge Trims | PVC Corner Trims |
Why Choose National Tile Trims?
- Fast UK Shipping on all orders
- Huge stock of internal & external trims
- Matching trims, connectors & accessories
- Trusted by trade professionals
Need Help Finding the Right Corner Trim?
Contact our team for guidance or browse our full range of internal and external tile corner trims.
Speak to a Specialist
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Explore More Tile Edging for Walls
If you're looking for additional tile trims specifically designed for wall edges, splashbacks, or vertical corners, visit our Tile Edging for Walls subcategory. You'll find a wide selection of profiles, finishes, and sizes to suit any interior style or tile thickness.