10 Best Concrete Sealers 2025 in the UK

Stormdry Masonry Waterproofing Cream is a high-quality, cream-based sealer designed to protect exterior brick, stone, mortar, sandstone, and granite surfaces. It penetrates deeply into the material to create an invisible water-repellent barrier with just one coat, helping to keep walls dry and warm while protecting insulation from moisture damage. This sealer is breathable, allowing masonry to naturally release moisture and preventing issues caused by trapped dampness.

The product is colourless, so it maintains the natural appearance of brick or stonework, making it a great choice for preserving the look of your walls. It offers strong durability with 25 years of protection, supported by independent testing and BBA approval, ensuring confidence in its long-term performance. Its cream form makes application straightforward and easier to handle compared to liquid sealers.

Stormdry is primarily intended for exterior use on masonry and delivers proven breathability and thermal benefits, making it a reliable, long-lasting sealer to protect outdoor walls without altering their appearance.

The Smartseal Imprinted Concrete Sealer is designed specifically for use on patterned imprinted concrete surfaces such as driveways and patios. Providing a silk/wet look finish, it's intended to both protect and enhance the appearance of these surfaces. A notable strength of this product is its durability; it offers long-lasting protection against wear, weathering, and UV damage, which can help maintain the color and integrity of your concrete longer. This makes it a strong candidate for those looking to preserve the visual appeal and strength of their outdoor spaces.

Application is user-friendly, requiring just a natural hair broom for optimal coverage, with a 4 to 6 square meters per litre, depending on porosity. This straightforward process is ideal for DIY enthusiasts or those not wanting to hire professional help. However, it’s important to note that the sealer is marketed specifically for patterned imprinted concrete, so its effectiveness on non-patterned surfaces might differ.

The sealer is also UV and chemical resistant, preventing color loss, which is a significant advantage in sunny or chemically exposed environments. Smartseal’s commitment to customer service is highlighted, suggesting good support for any queries or issues, which is reassuring for first-time users or those unfamiliar with concrete sealers.

The Everbuild 405 Path & Patio Seal is a water-based acrylic sealer designed to protect outdoor surfaces such as patios, paths, natural stone, concrete, and block paving. Being solvent-free, it is safer to use around the home with low odour and no flammability concerns. Once applied, it dries to a hard-wearing, low-sheen finish that repels water, oil, and dirt, helping surfaces stay cleaner and resist stains.

The sealer contains a fungicide to prevent mould or algae growth, which helps maintain the neat appearance of walkways. Its slip-resistant finish adds a safety benefit, especially in damp conditions. Proper surface preparation by thorough cleaning is important before application to ensure good adhesion. It offers water resistance rather than complete waterproofing, making it suitable for typical outdoor use rather than heavy water exposure.

This sealer is a reliable choice for homeowners looking to enhance and protect their outdoor paved areas with minimal effort and a natural look.