10 Best Black Magic Instant Roof Gutter Repair Sealant in The UK

Last updated on 04/07/2025

Advertising disclosure

Black Magic Emergency Roof and Gutter Spray 2 x 500ml - Repairs Crack and Leaks - Powerful Bitumen Formula - Easy to Use Formula

Why We Love It

Versatile for multiple surfaces.
Instantly repairs leaks.
Long-lasting waterproof formula.

Main Highlights

The quick and easy way to repair roofs and gutters. SUITABLE FOR USE ON ALL HARD SURFACES SUCH AS FELTED OR ASPHALT ROOFS, GUTTERING, STONE, CONCRETE, SLATE, METALS & WOOD
Uses an industrial-strength bitumen compound to heal any cracks, leaks or other damage instantly
Super hard-wearing and a completely waterproof formula to keep your roof and gutter strong and leak-free
Leaves a flexible coating that is crack and damage resistant. Due to its flexibility, this sealer can be used on felt, asphalt, plastic, metal, stone, concrete, slate, wood and UPVC – allowing you to seal any surface you wish with ease!
Suitable for repairing larger areas if the area is covered with gauze and then sprayed with Black Magic Roof and Gutter Repair

6 X Everbuild Roof & Gutter Butyl Sealant Black Waterproof and Sealing

Why We Love It

Innovative and efficient solutions.
Sustainable and eco-friendly options.
Trusted since 1927.

Main Highlights

Sika / Everbuild Products offer a full range of products for both the professional market and DIY consumer
Efficient use of energy and natural resources are crucial to sustainable development. Sika aims to minimize the impact on climate change by reducing energy consumption, with the positive effect of lowering costs and increasing competitiveness.
Sika’s objective centers on supplying customers with innovative solutions that boost the efficiency, durability and aesthetic appeal of buildings, infrastructure constructions, installations and vehicles. Sika solutions are developed to help customers to make a positive environmental impact, or to address climate-related concerns.
As a global company, Sika is committed to sustainable development. The company honors its responsibilities by offering sustainable solutions for energy-efficient constructions and environmentlly friendly vehicles. It also implements numerous projects and measures aimed at boosting the Group’s business, social, and ecological sustainability.
Sika Group was established in 1927 and produces and markets a wide range of state-of-the-art systems covering construction products, industrial manufacturing, automotive manufacturing and DIY products ranges

Polar Specialist Coatings

Polar Premium Black Instant Waterproof Felt Roof Sealant Paint 500ml, Emergency Felt Roof Repair Sealer for All Felt Roofs

Free Shipping

Why We Love It

Instantly seals emergency leaks.
One coat instant repair.
Easy to apply.

Main Highlights

Apply polar felt seal to affected area to instantly seal any leak outdoors and is waterproof protected - perfect for repairing damaged felt roofs
Easy application with just one coat, no primer needed and can be applied to damp surfaces
For use on felt flat roofs pitched roofs, weathered asphalt, bitumen surfaces, felt shed and garage roofs, gutters, drainpipes, concrete, brick, grp, fiberglass roofs and metal roofing surfaces
Felt seal contains reinforced fibres that interlace to cover up small gaps or crack, giving durable and quick results
Manufactured in great britain - 500 ml

Everbuild Black Jack 905 – All Weather Roof Coating – Solvent-Based – Fibre-Reinforced – Fast Drying – Weatherproof – Black – 5 Litre

34% Off

Why We Love It

Quick drying for efficient use.
Super strong, weatherproof finish.
Versatile, complete waterproof coating.

Main Highlights

QUICK DRYING FORMULA – This brushable bitumen compound dries fast and is ready for a second coat in 24 hours.
SUPER STRONG FINISH – Solvent-based formula with added fibres to reinforce the strength and weatherproofing of the coating.
IDEAL FOR WEATHERPROOFING APPLICATIONS – Designed to deliver an immediate waterproof coating to non-plastic guttering, structural steelwork and other roofing applications.
SUITABLE FOR USE ON A RANGE OF SUBSTRATES – Use it to reseal and weatherproof a range of materials, including asphalt and felt roofing, concrete decks and sheeting, metal sheeting, tiles and more.
COMPLETE WATERPROOF COATING – Versatile enough to use as a protective barrier on walls and roofs to prevent water and vapour entry.
A CHOICE OF SIZES – Available in both 5-litre and 25-litre tins to suit your project size.

Black Magic Emergency Roof and Gutter Spray 500ml - Repairs Crack and Leaks - Powerful Bitumen Formula - Easy to Use Formula

8% Off

Why We Love It

Industrial-strength for instant repairs.
Completely waterproof, super durable.
Highly flexible, universally applicable.

Main Highlights

The quick and easy way to repair roofs and gutters. SUITABLE FOR USE ON ALL HARD SURFACES SUCH AS FELTED OR ASPHALT ROOFS, GUTTERING, STONE, CONCRETE, SLATE, METALS & WOOD
Uses an industrial-strength bitumen compound to heal any cracks, leaks or other damage instantly
Super hard-wearing and a completely waterproof formula to keep your roof and gutter strong and leak-free
Leaves a flexible coating that is crack and damage resistant. Due to its flexibility, this sealer can be used on felt, asphalt, plastic, metal, stone, concrete, slate, wood and UPVC – allowing you to seal any surface you wish with ease!
Suitable for repairing larger areas if the area is covered with gauze and then sprayed with Black Magic Roof and Gutter Repair

Pro-Kleen Instant Waterproof Sealant Spray - Tough Leak Sealant Spray for Roofs, Pipes, Guttering & More - Transparent & Long-Lasting Formula - Instant Emergency Repair (400ml)

Free Shipping

Why We Love It

Stops leaks and drips efficiently.
Formula dries completely waterproof.
Remains flexible for years.

Main Highlights

STOPS LEAKS AND DRIPS: Our easy to use sealant spray stops leaks and drips with ease. It’s an easy to use formula that’s perfect to use for emergencies when you need to stop leaks quickly. Whether you have a leak in your guttering, pipework, drain and much more, this Pro-Kleen leak sealer provides a trustworthy and easy solution to seal the leak quickly and efficiently
WATERPROOF FORMULA: The watertight formula dries completely waterproof. It’s super tough and robust, making it perfect for indoor and outdoor use. Whether you’re needing to fix a leaking roof or window – this is the product for you!
SAFE FOR A VARIETY OF SURFACES: This versatile formula is suitable for using on guttering, pipework, drains, windows, roofs and other leaking areas. Use our pipe sealant spray for a quick and easy fix for those pesky leaks and drips on a variety of indoor and outdoor surfaces
TRANSPARENT FORMULA: There’s no need to worry about Pro-Kleen’s sealant spray leaving behind an unappealing mark as it dries completely transparent. This means you can use it on with complete peace of mind
REMAINS FLEXIBLE AND PLIABLE FOR YEARS TO COME: Once dry, this sealant spray remains flexible and pliable for years to come! The formula is super long-lasting to prevent drips and leaks from returning after use
EASY TO USE FORMULA: For best results, we recommend applying to clean, dry surfaces that are free from dust, dirt and rust. 1. Spray in thin coats until you have the desired thickness. 2. We recommend plugging larger holes and voids with Aluminium foil before spraying to obtain a better seal. 3. Masking tape can be used to prevent the product from going onto other areas. If in doubt, spray the product in an inconspicuous area first. Use the product in well-ventilated areas only. After use, invert the can and spray to clear the nozzle to prevent blockages

UniBond 2079110 Roof & Gutter Sealant, Long-Lasting Butyl Sealant for Roofing Applications, Waterproof Sealant for Outdoor Use, Flexible & Durable Roof Sealant, 1x504g Cartridge, Black

Free Shipping

Why We Love It

Specially formulated for roofing applications.
Durable and weather-resistant sealant.
Ensures wide coverage efficiency.

Main Highlights

Specially formulated – The ready-to-use flexible sealant is specially designed to fill connections and joints in guttering, downpipes and other roofing applications.
All weather sealant – The durable UniBond sealant is waterproof, UV- and weather-resistant, making it effective for outdoor use on guttering, roofs and tiles.
Ensures durability – The practical black sealant is highly flexible and durable, ensuring long-lasting and effective results for most common roofing materials.*
Wide coverage – The sealant cartridge ensures a wide coverage of approximately 11m using a 6mm bead, making it ideal for larger or more challenging jobs.
Package Contents – UniBond Roof & Gutter Sealant, rubber sealant for roofs & gutters, resistant to water, ageing, UV and weather, flexible & durable, coverage of approx. 11m, black, 1x504g Cartridge

Ideal for emergency repairs.
Use on multiple surfaces.
Simple, fast application.

Main Highlights

ULTIMATE WATERPROOF SEALANT: Stop Leak Sealer Spray provides advanced, long-lasting leak protection for gutters, flat roofs, and more. Jenolite's waterproofing sealant can be trusted to act as an instant leak sealer. Perfect for fast-fix repairs and protection for guttering, flat roofs, shed roofs, drain pipes, caravans and more.
VERSATILE USAGE: Formulated for multi-surface application, Jenolite Stop Leak Sealer Spray can be used on a wide range of surfaces, including plastic, tile, metal, UPVC, Concrete, roofing felt and more. Ideal for use as a leaking gutter seal, the waterproof sealant spray is also perfect for fixing leaks in felt roofs, conservatories, sheds, etc.
WEATHER-RESISTANT DURABILITY: The waterproofing spray is designed to withstand extreme weather conditions UV rays and extreme temperatures, this premium leak sealer maintains its strength and flexibility over time, keeping your gutters and roofs leak-free year-round.
QUICK & EASY APPLICATION: Simple to apply, the waterproofing spray offers a fast solution to dealing with small cracks and leaks, just aim and spray, building up several layers for maximum effect. (It is not recommended for bird baths, ponds, central heating systems or pressurised plumbing systems)
MADE IN BRITAIN: Pioneers in surface treatment and protection ,JENOLITE’s Stop Leak Sealer Spray combines cutting-edge innovation with decades of expertise to deliver a product you can rely on for lasting, professional-grade results. Available in CLEAR | BLACK | WHITE

Polar Specialist Coatings

Polar Black Leak Fix Spray - 400ml - Waterproof Roof Sealant - Instantly Seals Leaks and Cracks, for Lasting Protection on Roofs, Drainpipes and Gutter Repairs, for Internal and Exterior Use

Free Shipping

Why We Love It

Instant waterproof sealant spray.
Long lasting protection guaranteed.
Ideal for emergency fixes.

Main Highlights

Advanced Waterproofing Solution: Polar Black LeakFix spray is an innovative waterproof sealant spray designed to address fine leaks and cracks effectively. Its rubberised protective formula provides dependable protection against water damage, ensuring long-lasting results on various surfaces including flat roofs, gutters, and external pipes.
Quick and Easy Application: Our black leak sealer spray offers a hassle-free solution for repairs. With its convenient spray format, it's as simple as point and spray. Whether it's a gutter, roof, or window, our waterproofing spray gets to work immediately, delivering a seamless seal that lasts. Ideal for both DIY enthusiasts and professionals.
Ideal For Emergency Fixes: This spray sealant for water leaks boasts versatile application, making it suitable for a wide range of surfaces such as concrete, brickwork, and metal. Rainfall immediately after application has no adverse effect, making it an excellent solution for urgent repairs in any weather condition. Please note, it is not suitable for use on bird baths, ponds or copper surfaces.
Professional-Grade Performance: Enjoy outstanding efficacy with our roof sealant spray. Its easy-to-use design covers up to 2m² per 400ml can and requires 2-3 coats with a 20 minutes drying time between application. Perfect for quick fixes, it saves time and effort.
Long-Lasting Protection: Experience peace of mind knowing your surfaces are well-protected. Our leak sealer withstands all weather conditions, offering reliable defence against rain, UV rays, and temperature changes. Suitable for a wide range of surfaces, it delivers exceptional durability for both emergency and routine repairs.

Everbuild 3 X Roof & Gutter Sealant Black 310ml EVBROOFBL

Why We Love It

Innovative solutions for efficiency.
Committed to sustainable development.
Long-standing industry expertise since 1927.

Main Highlights

Sika / Everbuild Products offer a full range of products for both the professional market and DIY consumer
Efficient use of energy and natural resources are crucial to sustainable development. Sika aims to minimize the impact on climate change by reducing energy consumption, with the positive effect of lowering costs and increasing competitiveness.
Sika’s objective centers on supplying customers with innovative solutions that boost the efficiency, durability and aesthetic appeal of buildings, infrastructure constructions, installations and vehicles. Sika solutions are developed to help customers to make a positive environmental impact, or to address climate-related concerns.
As a global company, Sika is committed to sustainable development. The company honors its responsibilities by offering sustainable solutions for energy-efficient constructions and environmentlly friendly vehicles. It also implements numerous projects and measures aimed at boosting the Group’s business, social, and ecological sustainability.
Sika Group was established in 1927 and produces and markets a wide range of state-of-the-art systems covering construction products, industrial manufacturing, automotive manufacturing and DIY products ranges

9.0

Superb

We scanned 1551 products

We reviewed these offers relevant to the Black Magic Instant Roof Gutter Repair Sealant 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 Black Magic, Everbuild, Polar Specialist Coatings, Pro-Kleen, Unibond, JENOLITE, SATOHA, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Black Magic Instant Roof Gutter Repair Sealant in the market, we considered we took a deep dive into 7756 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 Black Magic Emergency Roof and Gutter Spray 2 x 500ml - Repairs Crack and Leaks - Powerful Bitumen Formula - Easy to Use Formula. We love many things about this product by Black Magic. What sets it apart from the competition is Versatile for multiple surfaces. , Instantly repairs leaks, Long-lasting waterproof formula.
The best value product for most shoppers and where user satisfaction is continuously the highest is 6 X Everbuild Roof & Gutter Butyl Sealant Black Waterproof and Sealing by Everbuild based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Black Magic Instant Roof Gutter Repair Sealant and the best cost-to-value ratio is Everbuild Black Jack 905 – All Weather Roof Coating – Solvent-Based – Fibre-Reinforced – Fast Drying – Weatherproof – Black – 5 Litreat Everbuild with a 34% discount.
Our list of the best Black Magic Instant Roof Gutter Repair Sealant 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.

10 Best Black Magic Instant Roof Gutter Repair Sealant in The UK

Related Deals You Might Like for Black Magic Instant Roof Gutter Repair Sealant

Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Excellent Weathering Properties – Black – 295 ml

Spray & Seal Leak Fix Stop Sealant Instant Waterproof Gutter Roof Pipe - Black

Roof and Gutter Sealant, Sealant and Adhesive for Roofing, Waterproof Roof Repair, Repairs on all Exposed Surfaces, Black

Everbuild 2 X Roof & Gutter Sealant Black 310ml EVBROOFBL

Roof & Gutter Sealant Black

EVO-STIK Roof and Gutter Sealant, Repairs Leaks, Excellent Weather Resistance, Lasts up to 10 Years, Colour: Black, Size: 290ml

SDMAX Black Spray And Seal Leak Fix Stop, Sealant Instant Waterproof Gutter Roof Pipe, Superior Long-Lasting Seals, Seal Fix Waterproof Mastic Sealant Pack of 1-300ml

Soudal Black Roof & Gutter Sealant 300ml

Bond-it Roof and Gutter Mate Lap Jointing Sealant 310 Millilitre

Supadec High Performance Felt Roof & Gutter Sealant And Adhesive Waterproof 300ml Black For Roofing Excellent Weathering Properties

We scanned 1551 products

We concluded that: