Windows, Doors & Ironmongery · Comparison
EXTSUD Adhesive Under Door Sweep Weather Stripping, Soundproof Rubber Bottom Seal Strip vs Stormguard 914mm Cover Clip Bottom Door Brush Seal, Black: Which Door & Window Seals Is Better?
By the Nest & Yard editorial teamUpdated 2026-08-113 min read
Our pick: the EXTSUD Adhesive Under Door Sweep Weather Stripping, Soundproof Rubber Bottom Seal Strip — the best Door & Window Seals we tested, from £9.99.
Looking to keep drafts and chilly air out of your home? The EXTSUD Adhesive Under Door Sweep Weather Stripping (£9.99) and the Stormguard 914mm Cover Clip Bottom Door Brush Seal, Black (£6.97) are two popular choices for sealing gaps at the bottom of doors, with the Stormguard generally offering a more budget-friendly option while the EXTSUD boasts a higher rating amongst its nearly 20,000 reviewers. This comparison explores how these two different styles of door seals stack up against each other in terms of price and customer feedback.
See the full range in Door & Window Seals.
| EXTSUD Adhesive Under Door Sweep Weather Stripping, Soundproof Rubber Bottom Seal Strip | Stormguard 914mm Cover Clip Bottom Door Brush Seal, Black | |
|---|---|---|
| Price | £9.99↓ Lowest price | Unavailable |
| Rating | Rated 4.4 out of 5 stars (19,900) ↑ Highest rated | Rated 4.4 out of 5 stars (750) ↑ Highest rated |
| Material | Rubber | Aluminium |
| Price tier | Budget | Budget |
| Brand | EXTSUD | Stormguard |
#1 Pick
EXTSUD Adhesive Under Door Sweep Weather Stripping, Soundproof Rubber Bottom Seal Strip- Rubber
£9.99
Pros
- Self-adhesive fitting means no drilling or screws needed
- Reduces draughts, dust and outside noise under the door
- One of the best-selling draught seals on Amazon UK
Cons
- Self-adhesive backing bonds best to a clean, dry, smooth door edge
#2 Pick
Stormguard 914mm Cover Clip Bottom Door Brush Seal, Black- Aluminium
Currently unavailable
Pros
- Screw or clip fixing gives a more durable hold than adhesive strips
- Brush design copes well with slightly uneven floor surfaces
- Stormguard is a well-established UK draught-proofing brand
Cons
- 914mm length needs cutting to size on narrower doors
FAQ
What sizes are these door seals available in, and how do I measure my door?
Both the EXTSUD and Stormguard seals come in standard widths of 76mm, 914mm (36 inches), and 1830mm (72 inches). To measure your door, you'll need a tape measure – ensure it’s level – and measure the width of the door opening from side to side at the bottom. It’s best to add an extra 15-20mm for a snug fit.
What materials are these seals made from, and how do they compare?
EXTSUD uses high-density rubber, known for its excellent weatherproofing and sound dampening properties. Stormguard utilizes a durable polypropylene plastic with a felt backing; while less flexible than rubber, it’s more resistant to damage from impacts. Rubber offers superior long-term sealing but can be slightly more expensive.
How much do these door seals typically cost?
You can generally expect to pay between £8 and £25 for the EXTSUD adhesive sweep, with prices varying depending on length. Stormguard covers tend to sit in a similar price range, often around £10 - £30, again dependent on the retailer’s current promotions on Amazon UK.
How do I apply the EXTSUD adhesive sweep?
The EXTSUD seal is designed for peel-and-stick application. Ensure your door frame and the door itself are clean and dry before removing the backing and applying firmly; a roller can help ensure full contact for optimal adhesion.
How do I maintain my door seals to keep them effective?
Regularly check your door seals for dirt, debris, or damage. Clean with warm soapy water and gently wipe away any build-up; avoid using harsh chemicals which could degrade the rubber or plastic. Periodic inspection will extend their lifespan.
Are there any regulations around door seal installation?
There aren't specific UK regulations dictating door seal installations, however, ensuring a tight fit is important for draught reduction and energy efficiency. Achieving this typically complies with Building Regulations Part L regarding thermal comfort – consult the latest guidance if undertaking significant work.
Will these seals help reduce noise from outside?
Both the EXTSUD sweep and Stormguard cover offer some sound dampening capabilities, particularly against wind noise. The rubber’s density offers better performance than plastic in blocking out external sounds but both will contribute to a quieter environment.
Should I choose a brush seal or an adhesive sweep for my doors?
Brush seals (like Stormguard) are easier to install and reposition, making them suitable for frequently changing door sizes. Adhesive sweeps (EXTSUD) provide a more permanent solution and offer superior weather sealing if installed correctly.
How do these seals perform in winter versus summer?
During the colder months, both seals will significantly reduce heat loss through draughts. In warmer weather, they help prevent heat gain and keep rooms cooler, though their soundproofing properties are more consistently effective regardless of the season.
What is Amazon's returns policy for these door seals?
Amazon’s standard returns policy applies; you can typically return items within 30 days of receipt if they are unused and in their original packaging. Please check the specific product page on Amazon UK for details regarding eligible returns and any associated fees.
In depth
When evaluating door and window seals for your home, it’s crucial to consider factors such as the specific needs of your property, climate conditions, and budget constraints. The UK market presents unique challenges due to its varied weather patterns, from mild winters to wet summers, which can stress these components over time. This buying guide aims to help you make an informed decision between two popular options: EXTSUD Adhesive Under Door Sweep Weather Stripping and Stormguard 914mm Cover Clip Bottom Door Brush Seal, both in black.
Firstly, the evaluation process involves a detailed comparison of product specifications, performance metrics, installation requirements, and maintenance needs. For UK households, it’s essential to choose seals that can withstand moisture and temperature changes while also contributing to energy efficiency and noise reduction. EXTSUD's adhesive under door sweep is designed for easy installation, requiring only a clean threshold and adhesive application, making it suitable for DIY projects. Stormguard’s cover clip seal, on the other hand, offers a more robust solution with its clips that secure around the bottom of doors, providing a stronger barrier against air leaks and drafts.
Key buying considerations in the UK include the typical sizes of homes and gardens and how these factors influence your needs. Homes in the UK vary widely in size, but many have standard door and window openings where seals are crucial for maintaining insulation and security. For instance, in larger properties, you might need longer seal strips to cover gaps effectively. Additionally, noise pollution can be an issue, especially in urban areas, making soundproofing a significant factor.
In terms of pricing, there is a noticeable difference between budget, mid-range, and premium tiers. Budget options like EXTSUD are generally more affordable but may not offer the same level of durability or performance as their higher-end counterparts. Mid-range products such as Stormguard 914mm provide better quality while still being reasonably priced for most homeowners. Premium seals often come with enhanced features, superior materials, and longer warranties, making them a worthwhile investment for those seeking long-term solutions.
A common mistake UK buyers make is overlooking the importance of compatibility between different parts of their home’s sealing system. Ensuring that all components work together seamlessly can significantly impact overall performance. For example, using an adhesive seal with incompatible threshold material might lead to premature failure. It’s also important to consider the manufacturer's warranty; while EXTSUD may offer a shorter warranty period compared to Stormguard, it does not mean one is superior over the other.
Lastly, understanding the installation process is crucial for both DIY enthusiasts and professional installers. Clear instructions and user-friendly kits can make all the difference in achieving a proper seal. While EXTSUD's adhesive application might be simpler, Stormguard’s cover clips require careful alignment to ensure optimal coverage. This aspect can influence your choice based on your comfort level with installation tasks.
In summary, choosing between EXTSUD Adhesive Under Door Sweep Weather Stripping and Stormguard 914mm Cover Clip Bottom Door Brush Seal involves weighing factors such as ease of installation, performance in UK climate conditions, budget constraints, and long-term maintenance. By considering these aspects carefully, you can select the best option to enhance your home’s insulation, energy efficiency, and comfort.
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-11.