Best Brick Sealer Exterior of 2026

Last updated on 03/04/2026

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Stormdry Masonry Waterproofing Cream (5 Litre) 25 Year BBA & EST Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Stormdry Masonry Waterproofing Cream (5 Litre) 25 Year BBA & EST Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Keeps walls warm and dry.
Long-lasting 25-year protection.
Maintains natural wall appearance.

Main Highlights

PREMIUM High-Strength Wall Waterproofing for Brick, Stone, Mortar, Sandstone and Granite.Keeps walls dry to keep walls warm. Protect Internal and Cavity Wall Insulation from rain and moisture damage.
25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Tested by University of Portsmouth

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Stormdry Masonry Waterproofing Cream (5 Litre) 25 Year BBA & EST Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Keeps walls warm and dry.
Long-lasting 25-year protection.
Maintains natural wall appearance.

Main Highlights

PREMIUM High-Strength Wall Waterproofing for Brick, Stone, Mortar, Sandstone and Granite.Keeps walls dry to keep walls warm. Protect Internal and Cavity Wall Insulation from rain and moisture damage.
25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Tested by University of Portsmouth

Value for Money

Raincheck Universal Water Seal (5 Litre & Sprayer) Breathable, Colourless, Exterior Brick, Wood and Stone Sealer

Raincheck Universal Water Seal (5 Litre & Sprayer) Breathable, Colourless, Exterior Brick, Wood and Stone Sealer

Rapid curing, breathable seal.
Long-lasting 10 years protection.
Fully adjustable wand nozzle.

Main Highlights

Raincheck Universal Waterseal

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Raincheck Universal Water Seal (5 Litre & Sprayer) Breathable, Colourless, Exterior Brick, Wood and Stone Sealer

Rapid curing, breathable seal.
Long-lasting 10 years protection.
Fully adjustable wand nozzle.

Main Highlights

Raincheck Universal Waterseal

Stormdry Masonry Waterproofing Cream (3 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Stormdry Masonry Waterproofing Cream (3 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Premium high-strength wall waterproofing.
25 years of protection.
Maintains natural wall appearance.

Main Highlights

PREMIUM High-Strength Wall Waterproofing for Brick, Stone, Mortar, Sandstone and Granite.Keeps walls dry to keep walls warm. Protect Internal and Cavity Wall Insulation from rain and moisture damage.
25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Tested by University of Portsmouth

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Stormdry Masonry Waterproofing Cream (3 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Premium high-strength wall waterproofing.
25 years of protection.
Maintains natural wall appearance.

Main Highlights

PREMIUM High-Strength Wall Waterproofing for Brick, Stone, Mortar, Sandstone and Granite.Keeps walls dry to keep walls warm. Protect Internal and Cavity Wall Insulation from rain and moisture damage.
25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Tested by University of Portsmouth

RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L), Clear

RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L), Clear

Direct application to damp surfaces.
Prevents freeze thaw damage.
Quick drying in 2 hours.

Main Highlights

Apply directly to damp surfaces
Stops freeze thaw damage
Use on brick, concrete and stone
Dries in 2 hours

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RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L), Clear

Direct application to damp surfaces.
Prevents freeze thaw damage.
Quick drying in 2 hours.

Main Highlights

Apply directly to damp surfaces
Stops freeze thaw damage
Use on brick, concrete and stone
Dries in 2 hours

Stormdry Masonry Waterproofing Cream (1 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Stormdry Masonry Waterproofing Cream (1 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Provides 25 year moisture protection.
Maintains warm, dry walls.
Preserves natural wall appearance.

Main Highlights

PREMIUM High-Strength Wall Waterproofing for Brick, Stone, Mortar, Sandstone and Granite.Keeps walls dry to keep walls warm. Protect Internal and Cavity Wall Insulation from rain and moisture damage.
25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Tested by University of Portsmouth

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Stormdry Masonry Waterproofing Cream (1 Litre) 25 Year BBA Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer

Provides 25 year moisture protection.
Maintains warm, dry walls.
Preserves natural wall appearance.

Main Highlights

PREMIUM High-Strength Wall Waterproofing for Brick, Stone, Mortar, Sandstone and Granite.Keeps walls dry to keep walls warm. Protect Internal and Cavity Wall Insulation from rain and moisture damage.
25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Tested by University of Portsmouth

Smartseal Brick Sealer - 1L - Breathable Brick Waterproofer & Clear Sealant. Protective Damp Seal & Waterproof Sealant for Bricks, Masonry, Concrete & Stone. Easy to Apply. Lasts up to 10 years

Smartseal Brick Sealer - 1L - Breathable Brick Waterproofer & Clear Sealant. Protective Damp Seal & Waterproof Sealant for Bricks, Masonry, Concrete & Stone. Easy to Apply. Lasts up to 10 years

Long-lasting damp-proofing protection.
Enhanced water repellency feature.
Quick-drying brick sealer.

Main Highlights

Long-lasting Damp Proofing Protection: An effective brick sealer that gives lasting brick waterproofing protection for interior and exterior brickwork and masonry. The brick sealant is best described as a brick waterproofing sealant, and will continue to work long after application, offering protection from water ingress for up to 10 years.
For Interior & Exterior Use: The water sealant for brickwork is usually applied as a water repellent spray so it becomes a brick sealer exterior. Apart from its use as a brick sealant for exterior applications, the clear acrylic sealer works just as effectively as a brick sealer interior. The clear waterproof sealant can be used on internal and external walls.
High Performance Sealer: The water sealant for brickwork is a brick waterproofer and water sealer that offers lasting protection against water ingress. The brick wall sealer is an effective brick sealant that begins to work as soon as it is dry. It soaks into porous brickwork, sealing the voids to give a protective, water-resistant finish.
Breathable Multi-Use Formulation: The breathable brick sealer waterproofs bricks and masonry and helps prevent moisture build-up inside the home at the same time. Furthermore, the versatile exterior and interior brick sealer can be used on a variety of surface types, including brick walls, cement, concrete, natural stone and masonry facades.
Application & Coverage: Prior to application, ensure the surface is clean and dry. The waterproof brick sealant can be applied by brush or roller, and 5 litres will cover up to 25㎡. For best results, apply 2 coats. Once dry, the invisible waterproof sealant will ensure the brickwork or masonry exhibits water repellent properties when water lands on it.

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Smartseal Brick Sealer - 1L - Breathable Brick Waterproofer & Clear Sealant. Protective Damp Seal & Waterproof Sealant for Bricks, Masonry, Concrete & Stone. Easy to Apply. Lasts up to 10 years

Long-lasting damp-proofing protection.
Enhanced water repellency feature.
Quick-drying brick sealer.

Main Highlights

Long-lasting Damp Proofing Protection: An effective brick sealer that gives lasting brick waterproofing protection for interior and exterior brickwork and masonry. The brick sealant is best described as a brick waterproofing sealant, and will continue to work long after application, offering protection from water ingress for up to 10 years.
For Interior & Exterior Use: The water sealant for brickwork is usually applied as a water repellent spray so it becomes a brick sealer exterior. Apart from its use as a brick sealant for exterior applications, the clear acrylic sealer works just as effectively as a brick sealer interior. The clear waterproof sealant can be used on internal and external walls.
High Performance Sealer: The water sealant for brickwork is a brick waterproofer and water sealer that offers lasting protection against water ingress. The brick wall sealer is an effective brick sealant that begins to work as soon as it is dry. It soaks into porous brickwork, sealing the voids to give a protective, water-resistant finish.
Breathable Multi-Use Formulation: The breathable brick sealer waterproofs bricks and masonry and helps prevent moisture build-up inside the home at the same time. Furthermore, the versatile exterior and interior brick sealer can be used on a variety of surface types, including brick walls, cement, concrete, natural stone and masonry facades.
Application & Coverage: Prior to application, ensure the surface is clean and dry. The waterproof brick sealant can be applied by brush or roller, and 5 litres will cover up to 25㎡. For best results, apply 2 coats. Once dry, the invisible waterproof sealant will ensure the brickwork or masonry exhibits water repellent properties when water lands on it.

Smartseal Brick Sealer - 5L - Breathable Brick Waterproofer & Clear Sealant. Protective Damp Seal & Waterproof Sealant for Bricks, Masonry, Concrete & Stone. Easy to Apply. Lasts up to 10 years

Smartseal Brick Sealer - 5L - Breathable Brick Waterproofer & Clear Sealant. Protective Damp Seal & Waterproof Sealant for Bricks, Masonry, Concrete & Stone. Easy to Apply. Lasts up to 10 years

Long-lasting damp-proofing protection.
Enhanced water repellency feature.
Solvent-free stain resistance.

Main Highlights

Long-lasting Damp Proofing Protection: An effective brick sealer that gives lasting brick waterproofing protection for interior and exterior brickwork and masonry. The brick sealant is best described as a brick waterproofing sealant, and will continue to work long after application, offering protection from water ingress for up to 10 years.
For Interior & Exterior Use: The water sealant for brickwork is usually applied as a water repellent spray so it becomes a brick sealer exterior. Apart from its use as a brick sealant for exterior applications, the clear acrylic sealer works just as effectively as a brick sealer interior. The clear waterproof sealant can be used on internal and external walls.
High Performance Sealer: The water sealant for brickwork is a brick waterproofer and water sealer that offers lasting protection against water ingress. The brick wall sealer is an effective brick sealant that begins to work as soon as it is dry. It soaks into porous brickwork, sealing the voids to give a protective, water-resistant finish.
Breathable Multi-Use Formulation: The breathable brick sealer waterproofs bricks and masonry and helps prevent moisture build-up inside the home at the same time. Furthermore, the versatile exterior and interior brick sealer can be used on a variety of surface types, including brick walls, cement, concrete, natural stone and masonry facades.
Application & Coverage: Prior to application, ensure the surface is clean and dry. The waterproof brick sealant can be applied by brush or roller, and 5 litres will cover up to 25㎡. For best results, apply 2 coats. Once dry, the invisible waterproof sealant will ensure the brickwork or masonry exhibits water repellent properties when water lands on it.

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Smartseal Brick Sealer - 5L - Breathable Brick Waterproofer & Clear Sealant. Protective Damp Seal & Waterproof Sealant for Bricks, Masonry, Concrete & Stone. Easy to Apply. Lasts up to 10 years

Long-lasting damp-proofing protection.
Enhanced water repellency feature.
Solvent-free stain resistance.

Main Highlights

Long-lasting Damp Proofing Protection: An effective brick sealer that gives lasting brick waterproofing protection for interior and exterior brickwork and masonry. The brick sealant is best described as a brick waterproofing sealant, and will continue to work long after application, offering protection from water ingress for up to 10 years.
For Interior & Exterior Use: The water sealant for brickwork is usually applied as a water repellent spray so it becomes a brick sealer exterior. Apart from its use as a brick sealant for exterior applications, the clear acrylic sealer works just as effectively as a brick sealer interior. The clear waterproof sealant can be used on internal and external walls.
High Performance Sealer: The water sealant for brickwork is a brick waterproofer and water sealer that offers lasting protection against water ingress. The brick wall sealer is an effective brick sealant that begins to work as soon as it is dry. It soaks into porous brickwork, sealing the voids to give a protective, water-resistant finish.
Breathable Multi-Use Formulation: The breathable brick sealer waterproofs bricks and masonry and helps prevent moisture build-up inside the home at the same time. Furthermore, the versatile exterior and interior brick sealer can be used on a variety of surface types, including brick walls, cement, concrete, natural stone and masonry facades.
Application & Coverage: Prior to application, ensure the surface is clean and dry. The waterproof brick sealant can be applied by brush or roller, and 5 litres will cover up to 25㎡. For best results, apply 2 coats. Once dry, the invisible waterproof sealant will ensure the brickwork or masonry exhibits water repellent properties when water lands on it.

Raincheck Universal Water Seal (5 Litre Clear) Breathable, Exterior Waterproofing Brick, Wood and Stone Sealer

Raincheck Universal Water Seal (5 Litre Clear) Breathable, Exterior Waterproofing Brick, Wood and Stone Sealer

Protects diverse surfaces effectively.
Provides waterproof assurance.
Adaptable to varying materials.

Main Highlights

Exterior BRICK, WOOD, & STONE Waterproofing Sealer
Rapid Curing, Breathable, Clear Water Seal
Long-Lasting up to 10 Years Protection
High Strength Formulation - 5% Active Ingredient
Even Penetration - No Wet Spots; Bridges hairline cracks

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Raincheck Universal Water Seal (5 Litre Clear) Breathable, Exterior Waterproofing Brick, Wood and Stone Sealer

Protects diverse surfaces effectively.
Provides waterproof assurance.
Adaptable to varying materials.

Main Highlights

Exterior BRICK, WOOD, & STONE Waterproofing Sealer
Rapid Curing, Breathable, Clear Water Seal
Long-Lasting up to 10 Years Protection
High Strength Formulation - 5% Active Ingredient
Even Penetration - No Wet Spots; Bridges hairline cracks

TWSU5L 5L Thompson's One Coat Water-Seal

TWSU5L 5L Thompson's One Coat Water-Seal

Highly resists water damage.
Effective silicone micro emulsion present.
Applicable on damp surfaces.

Main Highlights

Highly water repellent
Silicone micro emulsion
Can be applied to damp surfaces
Outlasts conventional waterproofers

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TWSU5L 5L Thompson's One Coat Water-Seal

Highly resists water damage.
Effective silicone micro emulsion present.
Applicable on damp surfaces.

Main Highlights

Highly water repellent
Silicone micro emulsion
Can be applied to damp surfaces
Outlasts conventional waterproofers

Breathable Brick Sealer & Waterproofer (5 Litre)

Breathable Brick Sealer & Waterproofer (5 Litre)

Floorseal Premium Surface Sealers & Cleaners

Preserves historical buildings naturally.
Prevents growth, rainwater and damp.
Ensures long-lasting protection.

Main Highlights

A NATURAL FINISH BRICK SEALER & WATERPROOFER: A powerful water & damp repellent suitable for use on the exterior surfaces of your building. This brick sealer can be applied by sprayer, roller or brush in a single application. Or for very porous surfaces a 2nd lighter application can be applied within 30 mins to 1 hour later. This sealer does not alter the appearance of the treated surface.
PERFECT FOR: Sealing porous bricks, natural stone, concrete masonry and pointing creating a water repellent surface. Suitable for use on any building and any form of pointing. This includes rubble filled walls, cavity walls, domestic buildings and commercial buildings. Inhibits organic growth, seals against rainwater and damp. Also seals traditional sand and cement pointing and lime pointing.
SUITABLE FOR LISTED OR HISTORIC BUILDINGS: This sealer is non-film forming so does NOT create a non-breathable coating or lacquer. Breathable Brick Sealer & Waterproofer is an impregnating sealer which soaks into the pores of the treated material. This creates a water repelling effect to resist rainwater & damp. The sealer will still allow moisture vapour transmission through the bricks or masonry.
COVERAGE & LIFESPAN: Approximately 5m2 per litre when applied to porous bricks, natural stone, flints, lime, slate & concretes. A 2nd light application can be applied to very porous surfaces. Very dense materials may produce a coverage rate of up to 10m2 per litre. Expected lifespan of 10 years+
SEE ALSO: Floorseal Interior Brick Sealer & Dustproofer also listed on Amazon for sealing and dustproofing INTERIOR brick walls to prevent dusting.
FURTHER INFORMATION: At the foot of the page for further information regarding cleaning and sealing interior and exterior bricks and masonry.

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Floorseal Premium Surface Sealers & Cleaners

Breathable Brick Sealer & Waterproofer (5 Litre)

Preserves historical buildings naturally.
Prevents growth, rainwater and damp.
Ensures long-lasting protection.

Main Highlights

A NATURAL FINISH BRICK SEALER & WATERPROOFER: A powerful water & damp repellent suitable for use on the exterior surfaces of your building. This brick sealer can be applied by sprayer, roller or brush in a single application. Or for very porous surfaces a 2nd lighter application can be applied within 30 mins to 1 hour later. This sealer does not alter the appearance of the treated surface.
PERFECT FOR: Sealing porous bricks, natural stone, concrete masonry and pointing creating a water repellent surface. Suitable for use on any building and any form of pointing. This includes rubble filled walls, cavity walls, domestic buildings and commercial buildings. Inhibits organic growth, seals against rainwater and damp. Also seals traditional sand and cement pointing and lime pointing.
SUITABLE FOR LISTED OR HISTORIC BUILDINGS: This sealer is non-film forming so does NOT create a non-breathable coating or lacquer. Breathable Brick Sealer & Waterproofer is an impregnating sealer which soaks into the pores of the treated material. This creates a water repelling effect to resist rainwater & damp. The sealer will still allow moisture vapour transmission through the bricks or masonry.
COVERAGE & LIFESPAN: Approximately 5m2 per litre when applied to porous bricks, natural stone, flints, lime, slate & concretes. A 2nd light application can be applied to very porous surfaces. Very dense materials may produce a coverage rate of up to 10m2 per litre. Expected lifespan of 10 years+
SEE ALSO: Floorseal Interior Brick Sealer & Dustproofer also listed on Amazon for sealing and dustproofing INTERIOR brick walls to prevent dusting.
FURTHER INFORMATION: At the foot of the page for further information regarding cleaning and sealing interior and exterior bricks and masonry.

We scanned 1827 products

We reviewed these offers relevant to the Brick Sealer Exterior within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Stormdry, SAFEGUARD, Thompson's, SmartSeal, Ronseal, Floorseal Premium Surface Sealers & Cleaners, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Brick Sealer Exterior in the market, we considered we took a deep dive into 9136 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Stormdry Masonry Waterproofing Cream (5 Litre) 25 Year BBA & EST Approved Exterior Brick Sealer. Breathable, Colourless Brick, Concrete, Stone, Mortar, Sandstone & Granite Waterproofer. We love many things about this product by Stormdry. What sets it apart from the competition is Keeps walls warm and dry, Long-lasting 25-year protection, Maintains natural wall appearance.
The best value product for most shoppers and where user satisfaction is continuously the highest is Raincheck Universal Water Seal (5 Litre & Sprayer) Breathable, Colourless, Exterior Brick, Wood and Stone Sealer by SAFEGUARD based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Brick Sealer Exterior and the best cost-to-value ratio is RONSEAL 36286 Thompsons Water Seal 5 Litre (TWSEAL5L), Clearat Thompson's with a 5% discount.
Our list of the best Brick Sealer Exterior is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.