Low-level air bricks are one of the most common entry points for floodwater. The Fernco Anti-Flood Air Brick Cover provides a simple and effective way to protect these vulnerable areas during periods of heavy rain or flooding. Designed to fit securely over standard air bricks, the cover creates a temporary watertight seal that helps prevent water ingress and reduce potential damage to internal spaces.
Easy to install and remove, this reusable solution is ideal for use during flood warnings or extreme weather events, offering peace of mind without the need for permanent alterations to the building.

• Targeted flood protection – prevents water entering through low-level air bricks, which are a common weak point during flooding
• Push-fit installation – allows the cover to be fitted and removed quickly without tools, making it ideal for sudden changes in weather conditions
• Watertight seal – creates a secure barrier against floodwater, helping to minimise the risk of damp and internal flood damage
• Reusable design – can be stored after use and redeployed whenever required, offering a cost-effective long-term solution
• High-visibility finish – ensures the cover is easy to see during use and acts as a reminder to remove it once flood risk has passed

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.