A chrome-plated Yale UPVC door letterbox with smooth round edges, featuring a spring-loaded aluminum flap.
Diagram of a 10-inch letterbox with full measurements
Diagram of a 12-inch letterbox with full measurements
Letterbox measuring guide showing how to measure cut-out width, cut-out height, and door thickness for a uPVC or composite front door
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A chrome-plated Yale UPVC door letterbox with smooth round edges, featuring a spring-loaded aluminum flap.Diagram of a 10-inch letterbox with full measurementsDiagram of a 12-inch letterbox with full measurementsLetterbox measuring guide showing how to measure cut-out width, cut-out height, and door thickness for a uPVC or composite front door

Yale UPVC Door Letterbox - Chrome – uPVC & Composite Doors

YaleSKU: HS13267

Will this fit your door? See the measuring guide ↓
Price:
£19.99

Key benefits

  • Telescopic sleeve - adjusts to fit a range of door thicknesses
  • Spring-loaded aluminium flap - corrosion-resistant, weatherproof
  • Quick-fit Yale design - simple replacement, no specialist tools

100% SECURE PAYMENTS

HASSLE FREE RETURNS

FULLY TRACKED DELIVERY

Description

The Yale Welseal letterbox is a high quality stylish product with smooth round edges with various finishes available to complement a range of doors styles and colours. A telescopic sleeve allows this letterbox to adjust and fit a range of different door thicknesses. It has a spring loaded aluminum flap which is resistant to corrosion and rust. Available in two different widths and two different door thicknesses - select your sizing and colour from multiple options. Please check size diagrams for further information on sizing. 

  • Manufactured by Yale
  • Adjustable telescopic sleeves
  • Quick fit design (2 fixings supplied)
  • Option to face fix using the indented screw fixing points
  • Energy Efficiency & Weather Resistance
  • Internal brushes reduce air filtration and prevent heat loss
  • External flap designed to open to 147°

Dimensions 10 inch
External Dimensions: 265mm in length x 70mm width
Internal Dimensions: Sleeve aperture size - 223mm x 44mm width (min size hole in door that the letterbox will fit)
Distance between screw hole centers: 236mm

Dimensions 12 inch
External Dimensions: 305mm in length x 70mm width
Internal Dimensions: Sleeve aperture size - 262mm x 44mm width (min size hole in door that the letterbox will fit)
Distance between screw hole centers: 275mm

Unsure how to measure your existing letterbox, view our simple 3 step measuring guide here

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Letterbox measuring guide showing how to measure cut-out width, cut-out height, and door thickness for a uPVC or composite front door

Not sure if this letterbox will fit your door?

Before ordering, take three measurements from your existing letterbox opening. If all three match the dimensions listed above, this letterbox will fit your door perfectly.

Cut-out width
Measure the full horizontal length of the opening in your door from edge to edge. This is the most common size to match — typical UK letterboxes are between 250mm and 300mm wide.

Cut-out height
Measure the vertical height of the opening from top to bottom. Most UK letterbox cut-outs are between 40mm and 75mm high.

Door thickness
Measure the thickness of your door from front face to back face. UK uPVC and composite doors are typically 44mm or 70mm thick.

Got all three? You're good to go.

Still unsure? Send a photo of your existing letterbox to info@homesecureshop.co.uk and we'll match it for you — or call 0151 521 8089 to speak to our team.

Full measuring guide

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Frequently Asked Questions

This anti-snap letterbox is designed to allow secure mail delivery while enhancing the security of your uPVC door. The polished stainless steel finish provides durability, corrosion resistance, and a modern appearance.

An anti-snap letterbox helps reduce the risk of tampering or forced entry through the letterplate area. It adds an extra layer of protection to your door. Learn more in Best Letterbox for uPVC Doors: How to Choose the Right One.

Compatibility depends on door thickness and fixing centres. It’s important to measure your existing letterbox and door to ensure a correct and secure fit.

Yes, installation is typically straightforward. You can remove the old letterbox and fit the new one using the supplied fixings, ensuring proper alignment and sealing.

Upgrading provides improved security, better resistance to weather and corrosion, enhanced insulation against drafts, and a sleek, modern finish for your door.

About the Brand - Yale

Founded in 1840, Yale has built one of the strongest reputations in home security—trusted by millions of homeowners worldwide for over 180 years. As part of the global ASSA ABLOY Group, Yale combines traditional mechanical-lock expertise with cutting-edge smart security innovation.

Yale’s extensive product range covers everything from high-security cylinders and euro-profile locks to smart alarms, connected video doorbells, and full smart-home ecosystems. Many Yale products carry warranties and guarantees that reflect their confidence in performance.

When you choose Yale you’re getting a brand that stands for exceptional quality, reliable protection, and future-proof design. Whether you’re upgrading a door lock, installing a new smart alarm system, or expanding your home’s connected security, Yale offers solutions that align with modern standards and today's homeowner expectations.

Explore Yale