Damp Wall Waterproofing Garage and Basement Paints
Limited airflow in rooms such as basements can cause mould to grow due to the damp surface. When this happens, a strong waterproofing paint is required to prevent the growth of mould and unsightly looking walls. Waterproofing paint can be applied directly to block or brick surfaces to prevent water ingress.
As it so happens, we have a range of solutions here to help you in your quest for a cleaner looking basement. Anti-fungal paints and coatings can be used to protect the surface from the growth of mould and products like Zinsser Water-Tite can be used to hold back the water pressure. Rustoleum Durbocem is an ideal solution for damp walls and surfaces too.
Durbocem has long been regarded as one of the best basement paints around. Once applied, it still allows the surface to breathe assuming all other existing paints and loose debris have been removed appropriately.
Improving your Property with Protective Paint
The garage and basement paints found within this section provide the answer to those of you looking to convert or improve existing cellars, garages or basements. These rooms in particular can be subject to flooding and wet areas, which can play a massive role in the deterioration of surfaces.
Areas of flooding or with a high water table create negative hydrostatic pressure, which is water pressure pushing at the paint coating from behind. When this happens, the coating can bubble, blister and flake. Coatings with poor adhesion properties will blister and ruin the look of your basement.
It’s important that the wall is clean and any loose material has been removed to ensure an effective renovation. Render additives such as Sika-1 can be mixed in with screeds in order to create a waterproofing layer. Proper mixing, following the manufacturer's instructions - whether by stirring, shaking, or combining components as directed - is essential to ensure optimal performance of basement paints. Mapei products such as Mapeplastic (which can also be used in Swimming Pools) are often used for basement projects.
Should you require on-site support or guidance on preparation and application, please get in touch with Promain and ask any questions you have relating to basement paints or any of the other products found within this section.
Introduction to Basement Paints
Basement paints need to resist moisture, mildew and mould - all common issues in underground spaces. As basements sit below ground level, damp and water ingress can easily affect walls, floors and ceilings unless properly sealed.
Why Choose Specialist Basement Paint?
Standard emulsions and interior paints often fail on damp surfaces. Peeling, blistering, and loose material are common signs of water damage. Promain supplies an effective solution using waterproof paints built for cellar walls, concrete floor areas and load bearing surfaces.
Understanding Basement Floor Paint
Basement floor paint must deal with wet conditions, dirt and dust, and specialized flooring coatings are designed for durability, safety, and aesthetic appeal in demanding environments. Whether you’re refreshing an old concrete floor or protecting a new one, choosing the best paint designed for basement floors ensures durability and better protection against mould and grease.
Key Features of Quality Basement Paints
Good paint for basements must be vapour permeable, prevent mildew, be highly durable under damp or wet conditions, and stay firmly bonded to the surface. Breathable formulas stop trapped moisture, while allowing walls and floors to dry naturally.
Trusted Paint Solutions from Promain
Promain offers basement paint that performs well on brick, concrete and masonry. Each product is selected for its resistance to water, strength in damp spaces, and ease of use for both professionals and the DIY enthusiast.
Zinsser Watertite Overview
Zinsser Watertite is a waterproof paint for use on basement walls and cellar areas. It blocks water pressure up to 34psi and is touch dry in under two hours. This paint also resists mould and mildew, providing a smooth, cleanable surface once the second coat is applied.
Durbocem for Wet Walls
Durbocem is a cement-based coating ideal for basement walls, cellar spaces and old paint removal jobs where surfaces are rough or stained. It allows vapour to pass through while stopping further damp - creating a dry structure without trapping moisture.
Graphenstone StopWater Premium
StopWater Premium is a solvent free coating for walls affected by water ingress or rising damp. It’s breathable and allows damp cellar walls to release built-up vapour without compromising surface protection. Suitable for use beneath decorative topcoats.
Fosroc Nitocote EP403
Fosroc Nitocote EP403 is a two part epoxy paint designed for basements and areas exposed to water or chemical spills. It provides a chemical resistant finish and is also resistant to oil contamination, making it perfect for concrete floors or load bearing surfaces in both domestic and commercial environments, including garages and industrial settings.
Centrecoat Damp Proof Basement Paint
Centrecoat is a practical choice for cellar walls and basement floors that deal with mild to moderate damp. This breathable damp-proof paint covers well, resists mould and mildew, and creates a sealed barrier when applied in two coats over a primed surface.
Reinforce Primer & Damp Proofing
Start by removing old paint, grease, or dust. Use a vacuum to thoroughly remove dust and debris from the surface before priming. Fill any cracks with sand and filler, then apply a suitable primer. A first coat seals the wall and helps the second coat bond better. For lasting protection, follow correct drying times and coat thickness.
Basement Paint Colours: Options & Tips
Basement paints are available in grey, white, cream, green, and beige tones - colours that help reflect light and make the space feel larger. Beige is a popular neutral option, offering a warm and versatile aesthetic for basement floors. Grey is especially practical, as it hides marks and fits most house interiors.
Custom Mixes & Tints
Promain can help create custom colour mixes for your basement, cellar or ground floor area. Whether you're painting walls, ceilings or floors, we’ll help ensure everything is evenly covered for a professional look.
Exterior‑Grade Basement Paints
We stock coatings suitable for external basement walls, garage walls, or boundary structures. These paints protect surfaces from rain, UV and moisture - keeping brick, render or concrete sealed and looking fresh.
Cellar Paint for Damp Walls
For a damp cellar, breathable paint is essential. Products like StopWater Premium or Durbocem help prevent mould by letting trapped vapour escape while sealing out further moisture from below ground.
Breathable Paint for Cellar Walls
Breathable paint helps protect walls from damage while maintaining airflow. This type of coat is ideal for use on damp surfaces where complete sealing would cause blistering or mould to reappear behind the surface.
Basement Paints Grey – Trendy & Practical
Grey paint for basement floors and walls has grown in popularity due to its clean appearance and ability to hide marks. It’s a top choice for damp areas where mould is a concern, and still fits modern interiors.
Choosing the Best Basement Paints
The best paint depends on your surface: whether it’s a concrete floor, brick wall or basement ceiling. Products from Promain are selected for strength, moisture resistance, and long-lasting performance even in wet or dusty conditions.
Protecting Your Investment
Sealing a basement correctly the first time saves money later. Using high-grade coatings from Promain helps avoid future issues with damp walls, flaking paint or mildew growth.
Steps for Effective Basement Painting
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Clean the surface, removing dirt, grease or loose material.
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Fill holes with filler or sand/cement mix.
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Repair cracks and any damaged areas to restore structural integrity and prevent water ingress before priming and painting.
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Apply primer on dry, dust-free surfaces.
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Brush or roll the first coat evenly.
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Wait for it to be touch dry before adding the second coat.
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Allow full drying before heavy use or placing furniture.
Safety Considerations When Painting Basements
Painting basements comes with its own set of safety challenges, making it essential to take the right precautions before you begin. Basement floors and walls are often exposed to damp conditions, which can encourage the growth of mould and mildew. Not only can these issues affect the quality of your basement floor paint, but they can also impact your health if not properly managed.
Before painting, always inspect your basement floors and walls for signs of mould or mildew. If you spot any, it’s crucial to treat and remove them with a suitable cleaner before applying any paint. Painting over mould or mildew can trap moisture and worsen the problem, leading to peeling paint and persistent odours.
Ventilation is another key safety factor. Basements often have limited airflow, so make sure to open windows or use fans to keep fresh air circulating while painting. This helps reduce the risk of inhaling fumes and keeps the environment safer, especially when working with paints designed for basement floors.
Wearing protective gear is also essential. Use gloves, safety goggles, and a mask to protect yourself from dust, paint splashes, and airborne particles, particularly when sanding or cleaning old surfaces. If you’re using a brush or roller on the basement floor, ensure the area is dry and free from standing water to prevent slips and ensure the paint adheres properly.
Finally, always follow the manufacturer’s instructions for your chosen basement floor paint, including recommended drying times and the number of coats. Taking these safety steps not only protects your health but also ensures your basement floor and walls stay in top condition for years to come.
Technical Support and Product Selection
Promain’s experts help you pick the right paint, mix it properly, and apply it at the correct coat thickness. From two part epoxy paint to breathable damp-proof solutions, our advice helps your space stay dry.
Beyond Walls: Floors and Concrete Surfaces
Concrete floor surfaces in basements need paint that can resist water, wear, dirt and mould. Properly painted surfaces are better protected against these issues, ensuring long-lasting durability and resistance to moisture. We supply solutions that handle frequent foot traffic and keep the area clean and safe.
Recommended Basement Floor Paint Products
Promain stocks waterproof, slip-resistant coatings suitable for concrete basement floors. Many options are solvent free and easy to apply with a brush or roller.
Efficiency and Sustainability
Our low-VOC paints are safe for use indoors and create fewer fumes, making them suitable for families or spaces with low ventilation.
Compliance and Standards
All Promain products meet UK safety and environmental regulations, including air quality standards and surface moisture resistance requirements.
DIY vs Professional Application
Many of our paints are user-friendly and suitable for the DIY enthusiast, but for complex areas or heavy water ingress, a professional finish may give longer-lasting results.
Long-Term Maintenance of Basement Paint
Wash walls with a mild cleaner if dirt or mould builds up. Recoat surfaces as needed, especially in damp cellar areas. A yearly check keeps paint looking new and protects the structure.
Warranty and Product Guarantees
Several products include guarantees against flaking, mould or water ingress. Contact Promain for product-specific warranty information and coverage terms.
Why Choose Promain
Promain supplies basement paints that work - from breathable damp-proof coatings to epoxy floor paint. We provide expert help, fast delivery and reliable customer service every step of the way.
Ready for Your Basement Project?
Want to fix damp walls or finish your basement floor? Call Promain for expert help and get the right paint for your house, cellar or underground space.
Not sure whether to use Durbocem, Zinsser Watertite, Nitocote EP403 or StopWater? Contact Promain - we’ll explain the differences and recommend the right option for your surface.
Get Started Today
Ready to stop mould, seal damp and reclaim your space? Promain has everything you need to protect your basement walls and floors.
Basement Paint Products from Promain
Zinsser Watertite Basement Waterproofing Paint
A waterproof paint for basement walls that blocks high water pressure, dries quickly, and is formulated to withstand water intrusion and heavy use.
Fosroc Nitocote EP403
A two part epoxy paint with chemical resistance, designed to withstand water, chemicals, and heavy traffic on basement floors and damp concrete surfaces.
Durbocem for Wet Walls
A breathable paint for wet interior walls, ideal for use in cellars and damp ground-level spaces, and able to withstand persistent moisture.
Graphenstone StopWater Premium
A solvent free, breathable coating that controls rising damp, withstands water exposure, and suits mineral surfaces.
Centrecoat Damp Proof Basement Paint
A reliable damp-proof coating that blocks minor water ingress, withstands mould and mildew, and resists everyday wear.

