Granite composite sinks are popular kitchen choices — durable, heat-resistant and attractive. But despite their toughness, they can suffer chips, cracks and fading over time. This guide covers professional repair options for granite composite sink damage and how to restore the appearance without the cost of replacement.
What Is a Granite Composite Sink?
Granite composite sinks are made from a mixture of granite stone dust (typically 75–80%) bound with acrylic resin. Brands include Franke Fragranite, Blanco Silgranit, Schock and various others. They’re significantly harder and more durable than standard acrylic sinks but are not indestructible.
Common Granite Composite Sink Damage
- Chips — usually at the rim, near the drain or at the front edge; caused by dropped heavy pots or sharp impacts
- Cracks — less common but possible from severe impact or if the sink was poorly supported during installation
- Fading and whitening — gradual chalking or fading of the surface finish, particularly on dark grey or black sinks, caused by limescale, harsh cleaners or UV exposure through a window
- Scratches — fine surface scratches from abrasive pads or sharp utensils
Professional Granite Composite Sink Repair
Chips on granite composite sinks can be filled and colour-matched professionally. The textured surface of granite composite presents a challenge that standard repair materials don’t address well — specialist fillers and coatings that replicate the granular texture are required for a professional result. Surface fading and whitening can often be addressed through deep cleaning, re-conditioning and re-sealing.
Is It Worth Repairing vs Replacing?
Quality granite composite sinks cost £150–£600 or more. Professional chip repair typically costs a fraction of this. Particularly where the sink is otherwise in good condition — just localised chip damage — repair is almost always the better option.
Request a Free Assessment
Send us clear photographs of your granite composite sink damage for a free quote. Include a close-up of the damage and an overview shot showing the sink model and colour.
