10 Best Concrete Cleaners 2025 in the UK

The Wet & Forget Mould, Lichen & Algae Remover is an outdoor cleaning solution designed for easy and effective removal of mould, mildew, and algae. A significant selling point is its simplicity; you just spray it on the desired surface and leave it to work without any scrubbing or harsh cleaning required. The product is bleach-free, aligning well with environmentally conscious preferences, and it's biodegradable, which means it's less harmful to surrounding plants and animals.

The 2-litre bottle mixes with water to make up to 12 litres of cleaning solution, covering a large area between 100 and 300 square meters. This makes it cost-effective for extensive outdoor areas. It is versatile enough for use on multiple surfaces, including roofs, bricks, natural stone, and even artificial grass, making it suitable for various home exteriors.

While the application is straightforward, it does require dry weather for at least five hours after application to ensure effectiveness, which could be a constraint in unpredictable climates. Users need to wear protective gloves and eye protection, which indicates a need for caution despite its non-toxic claims. The cleaner's unscented nature might appeal to those sensitive to strong smells, although some might miss a fresh scent post-cleaning. It is an effective, easy-to-use solution for those looking to maintain clean outdoor surfaces.

Monty Miracle Fast Patio Cleaner is a versatile and effective outdoor surface cleaner designed to tackle a variety of organic stains including black spots, algae, mold, and more. With a 5-litre liquid formulation, it covers up to 25 square meters and provides results in just 10 minutes without the need for scrubbing or pressure washing. The cleaner is ready-to-use, requiring simple application via a garden pump spray, making it user-friendly.

It’s suitable for numerous surfaces such as concrete, decking, fencing, stone, and more, supporting broad surface compatibility. The lemon scent adds a pleasant aroma during use. Additionally, it offers long-lasting protection against future stains and growths, helping maintain clean outdoors for months. Users should note that it is only deliverable within mainland UK and might not be eco-friendly, given its powerful chemical formulation. Also, the drying time is relatively quick, enhancing convenience.

This product is ideal for homeowners looking for a fast, potent solution to clean and protect various outdoor surfaces without rigorous labor. Some might find the cost higher and the environmental impact concerning.

The Kärcher Canister Pressure Washer Detergent is designed to be a versatile universal cleaner, making it a suitable choice for those who own Kärcher pressure washers. With a 5-liter capacity, it offers good value for various cleaning tasks without the need for frequent repurchasing. It's particularly convenient because it can be dispensed directly from the pressure washer, simplifying the application process. Alternatively, it can be mixed in a bucket and applied with a sponge for more hands-on cleaning. This dual application method offers flexibility based on the user's preference or the task at hand.

The detergent is concentrated, which means less product is needed for effective cleaning, and it's unscented, appealing to those sensitive to fragrances. It's designed for multi-surface use, making it adaptable for different cleaning scenarios beyond just concrete, which is a significant strength. However, while it's universally labeled, users should ensure compatibility with specific surfaces to avoid any potential damage.

One downside is that the product seems specially formulated for Kärcher pressure washers, which could limit its efficiency if used with other brands of pressure washers. Customer reviews are generally positive, with high ratings, suggesting customer satisfaction with performance. The product can be an excellent choice for those looking for a reliable and versatile cleaner, especially if they already own Kärcher equipment.