10 Best Grout Whiteners 2025 in the UK

The Twin Pack White Grout Pen by Rainbow Chalk Markers Ltd. is designed specifically for restoring and whitening tile grout in kitchens and bathrooms. It's a silicone-based product that asserts compatibility with a range of grout types and aims to cover up to 120 meters of 2mm grout lines with its two pens. This makes it suitable for both floors and walls, addressing typical problem areas in household environments.

The pens are convenient for small or medium-sized home projects, offering an ease of application akin to using a marker — this straightforward approach is one of its stronger points. Additionally, this product includes anti-bacterial agents to help prevent the reappearance of mold, which can be particularly beneficial in damp areas like bathrooms.

The longevity of the results may vary depending on the frequency of cleaning and exposure to moisture, which could require more frequent reapplication compared to some more permanent solutions. While the ease of application is a plus, it might be less effective on very old or heavily discolored grout lines, requiring more effort for a polished finish. It appears to be a reliable choice for those looking to quickly refresh the look of their grout.

The Everbuild Forever White Grout Reviver is a silicone-based product designed to restore discolored and dirty grout to a bright white finish. It is highly versatile, suitable for use in kitchens, bathrooms, shower areas, and other interior spaces. The built-in applicator makes it easy to apply directly from the tube, requiring a simple process of working the product into the grout, leaving it for 3-4 hours, and then wiping away any residue.

This product boasts high water resistance, ensuring long-lasting color and durability once dried. One notable feature is the inclusion of Mould Shield, which is independently tested to prevent mold growth for up to 10 years, adding to its longevity and reliability. Additionally, a single 200ml tube covers approximately 20 sq.m of tiles, making it fairly efficient in terms of coverage. However, it's important to note that this product is suitable for interior use only and should not be exposed to water for 24 hours after application.

The product dimensions and weight make it convenient to handle and store. Safety-wise, the product does not require batteries or power sources, and its silicone material is commonly used in household applications. For those looking to refresh and maintain their grout with minimal hassle, the Everbuild Forever White Grout Reviver offers a practical solution.

The TopQuaFocus 200g Grout Reviver is designed to be an eco-friendly solution for whitening grout in bathrooms and kitchens. It is easy to apply directly from a tube equipped with a sponge applicator, which makes it accessible for DIY enthusiasts who prefer not to hire professionals. Its bright white finish can refresh the look of tiled areas effectively, catering to various areas like shower rooms and damp spaces.

The versatility of the product is enhanced by its nozzles, which can be trimmed to fit different gap sizes, allowing for custom application. Safety is a standout feature, with the formula being water-based and claiming to be safe for families and pets, reducing environmental concerns associated with chemical cleaners.

Despite its light weight of only 200 grams, which could imply limited coverage for larger projects, the TopQuaFocus Grout Reviver seems a promising option for those seeking a quick and user-friendly grout whitening fix, especially for smaller or regular maintenance tasks.