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Lintel Stopends

Preformed lintel stopends are required at the end of each lintel cavity tray to prevent moisture cascading over the ends of the lintel into the cavity and towards the inside wall. Preformed lintel stopends are recommended by the NHBC where fair faced masonry is supported by lintels, cavity trays or combined lintels should have stop ends.

Timloc’s preformed lintel stopends are purpose made to guarantee an accurate fit and are more reliable than site formed alternatives. Our preformed lintel stopends remove the possible danger involved with volumes of water being directed into the cavity, which could cause damage and expensive repairs.

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Features & Benefits

  • Guarantees accurate fit onto lintel 
  • More reliable protection than site formed methods
  • Secure and watertight bond to the lintel
  • Manufactured from robust polypropylene
  • Long product life span


On steel lintels situated on external walls not exceeding 102.5mm in thickness constructed from:

  • brick
  • block
  • stonework.

Technical Information

Two stopends are required per external lintel.

Lintel stopends and over lintel cavity tray systems/DPC work in conjunction with weep holes:

  • stopends and trays collect and retain collected over lintel water
  • weep holes discharge water back out through the external cavity wall leaf.

Specification and Calculating Quantities

Two stopends are required per lintel.

Please contact the Timloc Technical Team to determine which stopend solution is required for your project from the range of 6 Timloc profiles.

To enable us to identify the required stopend for your project, please provide the following information regarding the steel lintel being used on your project:

  • manufacturer 
  • range/model reference
  • length
  • height.

Installation Advice

On-site installation and best practice guidance is all part of our service, please don’t hesitate to contact us to arrange a site visit.

  • Lintel stopends should be placed directly on top of the front flange of the steel lintel or over –lintel cavity tray/DPC, as close to the ends as the brick bonding will allow.
  • The area where the stopends are to be placed must be clean and dry for the butyl seal to bond effectively.
  • Weep holes should be positioned at 450mm centres.
  • A minimum of 2 weep holes are required per lintel.
  • We recommend that weep holes are formed using Timloc’s preformed wall weep vents (1143 range) or concealed tunnel weeps (TW1 range).

Please don’t hesitate to contact the Timloc Technical Team for further advice if there is any doubt regarding installation.

Regulations and Standards

  • Satisfies all NHBC recommendations
  • Complies with all relevant Building Regulations and British Standards
  • Manufactured to BS EN ISO 9001 Quality Management System
  • Manufactured to BS EN ISO 14001 Environmental Management System

Material and Colour Choice

Available in black only.

Injection moulded manufacturing process in polypropylene:

  • robust and strong
  • long product life span.
  • nbs plus
  • riba

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