Stormguard Chimney Excluder review
Stormguard Chimney Inflatable Draught Excluder, Transparent, 700mm (562VV)
By Tom Calder
Functionally similar to the Chimney Balloon brand's version, but this one states its own safety limit on the pack: 'ensure product is deflated and removed before lighting a fire.' That single line does a lot of the safety work for you, which is why it's the one to reach for first in this category.
- Best for
- The same job as any chimney balloon — sealing a genuinely unused flue — but with the safety limit stated on the product itself.
- Skip it if
- You're not sure the flue is genuinely out of use
as of 5 Nov 2026, 22:07 GMT · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- On-pack warning to deflate and remove before lighting a fire
- Simple push-fit and inflate, no fixings needed
- Comes with a 1-year manufacturer guarantee
Worth knowing
- Still requires the underlying rule to be followed: only fit in a genuinely unused or confirmed-redundant flue
- Transparent plastic construction, with no stated insulation performance beyond blocking the draught
- Fixed maximum size (up to 700 x 400 x 250mm inflated) — measure your flue opening before ordering
ⓘ As an Amazon Associate, PreparedBritain earns from qualifying purchases. We may earn a commission when you buy, or a fee when you request a quote, through our links. When two products are close, commission can decide which one we pick. A clearly better product always wins. Amazon prices come from Amazon's own product data and show the date and time they were retrieved. Prices at other retailers are checked by us, less often. Prices and stock can change at any time, so always check the retailer's price before you buy.
Who shouldn't buy this
Skip this if you're not sure the flue is genuinely out of use — get it swept and confirmed redundant first, or fit a permanent vented cap instead of a temporary inflatable excluder.
Key specs
| Type | Inflatable chimney draught excluder (chimney balloon) |
| Coverage | Up to 700mm wide x 400mm deep x 250mm high when inflated |
| Material | Plastic construction |
| Fitting | Push-fit, inflated via supplied tube; no fixings required |
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the UK price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one

Best for Sealing several narrow window and door frame gaps (1–3mm) across a whole house in one project.
in stock when checkedas of 5 Nov 2026, 22:07 GMT · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Best for Sealing the gap under a standard-width internal or external door, where up to 25mm needs covering.
as of 5 Nov 2026, 22:07 GMT · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Best for A budget alternative to an aluminium letterbox brush plate that fits on the inside face of the door, so it's less visible from outside.
in stock when checkedFree alerts for your home
Home Alerts emails you when a power cut, a Met Office warning or a flood warning covers your postcode. Free for your own home. Sign up in a minute.
Start free →