Enhance your door's functionality with this internal draught excluder letterbox. Featuring integra...Enhance your door's functionality with this internal draught excluder letterbox. Featuring integrated brushes to block draughts and an internal water seal to prevent leaks, it ensures your home stays comfortable and dry. The anti-snap flap opens a full 180 degrees, allowing easy access and reducing the risk of damage. With an adjustable sleeve, this letterbox fits doors 20mm to 39mm thick, making it suitable for most uPVC, composite, and timber doors. The 10-inch length ensures a perfect fit for your needs. INTERNAL DRAUGHT EXCLUDER – The integrated brushes help prevent draughts. Plus, an internal water seal prevents water leaks as it stops water getting into the door or panel. ANTI-SNAP FLAP – External and internal flaps open up to 180 degrees for easy access without risk of snapping. ADJUSTABLE SLEEVE – The telescopic design means the letter box can be adjusted to fit doors between 20mm to 40mm in thickness. Our letter box will fit most uPVC, Composite & Timber doors with a letterplate slot of around. DIMENSIONS – The letter box overall size is 270mm x 70mm and the internal dimension of the sleeve is 225mm x 37mm. The distance between the screw hole centres is 245mm. EASY INSTALLATION – With adjustable sleeves, these letter boxes are suitable for uPVC panel doors ranging from 20-40mm in thickness. Simply insert and tighten using either the short or long provided screws depending on your door thickness. Please ensure the distance between the screw hole centres of your existing letterbox is 245mm.
B&Q - 10 Inch (27Cm) Door LetterboxFits 40-80mm Upvc Timber DoorsTelescopic Sleeved Letter BoxBlack/blackFree delivery in 1–3 days£14.99Visit shop →
B&Q - 10 Inch (27Cm) Door LetterboxFits 20-40mm DoorsTelescopic Sleeved Letter BoxBlack/polished SilverFree delivery in 1–3 days£14.99Visit shop →
B&Q - 10" (27Cm) Door Letter BoxAdjustable Letterbox For Upvc Composite Timber Doors (Black/white20-40mm)Free delivery in 1–3 days£14.99Visit shop →
B&Q - 10" (27Cm) Letter BoxFits 20-40mm DoorsExtendable Letterbox Black/polished GoldFree delivery in 1–3 days£14.99Visit shop →
B&Q - 10 Inch (27Cm) Door LetterboxFits 40-80mm DoorsTelescopic Sleeved Letter BoxSilver/satin Anodised AluminiumFree delivery in 1–3 days£14.99Visit shop →
B&Q - 10 Inch (27Cm) Door LetterboxFits 40-80mm Upvc DoorsTelescopic Sleeved Letter BoxWhiteFree delivery in 1–3 days£14.99Visit shop →
B&Q - 10 Inch (27Cm) Door LetterboxFits 40-80mm Upvc Timber DoorsTelescopic Sleeved Letter BoxBlack/chromeFree delivery in 1–3 days£14.99Visit shop →
B&Q - 10 Inch (27Cm) Door LetterboxFits 40-80mm DoorsTelescopic Sleeved Letter BoxBlack/polished SilverFree delivery in 1–3 days£14.99Visit shop →
B&Q - 10 Inch (27Cm) Door LetterboxFits 40-80mm DoorsTelescopic Sleeved Letter BoxBlack/satin Anodised AluminiumFree delivery in 1–3 days£14.99Visit shop →
HomebaseSelect Black And White Door Letter Box 10 Inch
Select 10 inch Black and White Door Letter Box - Internal Draught Excluder - Adjustable Sleeve - Anti-Snap FlapFree delivery in 1–3 days£17.00Visit shop →
Select Black and Polished Silver 10 inch Door Letter Box - Anti-Snap Flap - Draught ExcluderFree delivery in 1–3 days£21.00Visit shop →
Select Letterplate - Door Furniture - 27cm - Black/WhiteFree delivery in 1–3 days£21.00Visit shop →
Select - Letter Box - 10 inch - Black/SilverFree delivery in 1–3 days£21.00Visit shop →
Select Black and White Letterplate - 10 inch (27cm) Door Letter Box - Adjustable for UPVC, Composite, Timber DoorsFree delivery in 1–3 days£21.00Visit shop →
Product Information
Full details
This guide helps homeowners install and maintain the Keypak Door Letterbox, designed to improve home comfort by blocking drafts and preventing water leaks. It's ideal for those with uPVC, composite, or timber doors seeking an easy-to-install solution. One key consideration is ensuring the correct measurements for a proper fit. This letterbox features integrated brushes, an internal water seal, and an adjustable sleeve, making it a versatile and effective addition to your home.
All features
Brand
Keypak
Extended Product Information
FAQs
What tools do I need for installation?
You'll typically need a screwdriver and possibly a measuring tape to ensure the correct fit.
How do I clean the brushes?
Use a vacuum cleaner or a soft brush to remove dust and debris from the brushes.
Can this letterbox be used on wooden doors?
Yes, it is suitable for timber doors, provided the door thickness and screw hole spacing are compatible.
What if my door is thicker than 40mm?
This letterbox is designed for doors between 20mm and 40mm thick. It may not fit if your door is thicker.
What is the warranty period?
Please refer to the product packaging or retailer for warranty details.
Where can I buy replacement parts?
Contact the retailer where you purchased the letterbox.
How long does installation take?
Installation is typically quick, taking around 15-30 minutes.
Troubleshooting
Letterbox doesn't fit properly.
Double-check the door thickness and screw hole spacing against the product specifications. Ensure the adjustable sleeve is set correctly.
Drafts still present.
Make sure the brushes are clean and making full contact with the flap. Check for any gaps around the letterbox frame and door.
Water leaking.
Ensure the letterbox is properly sealed against the door. Check for any damage to the internal water seal.
Pros and Cons
Pros
Improved home comfort by reducing drafts.
Protects against water damage.
Easy installation with an adjustable sleeve.
Durable and long-lasting design.
Wide compatibility with various door types.
Cons
Requires precise measurement of existing letterbox screw hole spacing for a good fit.
May require occasional cleaning of the brushes.
Limited to doors within the specified thickness range.
Aesthetics may not suit all door styles.
Setup, Compatibility & Care
Compatibility: Ensure your door thickness is between 20mm and 40mm, and the screw hole spacing on your existing letterbox is 245mm.
Installation: Remove your existing letterbox. Insert the Keypak Letterbox and adjust the sleeve to fit your door thickness. Use the provided screws to secure it in place.
Care: Periodically clean the brushes with a vacuum cleaner or a soft brush to remove any debris and maintain optimal performance. Wipe the letterbox with a damp cloth for general cleaning. Avoid harsh chemicals.