
Geoworks has replaced Wrekin Geosynthetics, our geosynthetics products are available at Geoworks.eco Innovation is at our core Redefining access solutions Authentic innovation is hard to imitate Innovation built through experience Innovation has always been central to how we develop our products and support our customers. Over decades of working closely with contractors, merchants, specifiers and local authorities, we have built a deep understanding of the real challenges faced on site and across the wider infrastructure network. That understanding drives the way we think, design and improve. Rather than innovation for its own sake, our approach focuses on solving practical problems. We look carefully at how ironwork performs in the real world, from installation through to decades of service under traffic. This insight allows us to develop features, systems and ranges that address common issues such as installation time, reliability safety and long-term maintenance. Our innovations are shaped through collaboration. By working alongside engineers, contractors and industry bodies, we are able to test ideas, refine designs and ensure that new solutions meet the standards and performance requirements expected in modern infrastructure. Products within our ranges are made to meet recognised specifications such as BS EN 124 for manhole covers and gully gratings, ensuring consistent strength, reliability and safety in use. This collaborative and evidence-led approach has helped us introduce solutions that improve efficiency on site, reduce disruption and enhance the longevity of installed ironwork. Systems such as frame raising solutions, protective systems for construction phases, and enhanced seating and hinge designs are all examples of how we have responded directly to industry challenges. Innovation also influences how we operate as a business. It drives continuous improvement in design, manufacturing and technical support, ensuring that we provide reliable solutions backed by practical expertise. Our teams remain curious and responsive, always looking for ways to support the people who specify, install and maintain our products. By combining technical knowledge, industry collaboration and a clear focus on solving real problems, we continue to evolve our product ranges and develop solutions that help build stronger, safer and more resilient infrastructure. How Wrekin access covers are made POTHOLES - MORE THAN A SURFACE ISSUE Helping to find solutions to the UK's pothole problem Potholes across the UK’s road and highway network are a real problem. But did you know ironwork specification and selection can affect and even increase the likelihood of a pothole forming? Our new report explores; Some of the ways in which potholes are caused; including identified links to ironwork What features of ironwork can increase the likelihood of pothole formation Suggests solutions you should be looking for when specifying ironwork and much more. Get your copy of the report LEADING INNOVATIONS This is just a sample of some of the key innovations Wrekin have brought to market throughout its history. Hinged in three directions to allow the product to fit in any required orientation. Both covers of the double triangular grating feature I beams that interlock to provide high rigidity while still allowing the grating to hinge as one unit. Frame gussets are supports which reinforce the corners where the frame sections meet, distributing stress evenly, preventing damage to the frame or the access cover. Gritblocker, an anti-blockage keyway insert which simply fits into the manhole cover keyway preventing debris from blocking the opening and allows a lifting key to still be inserted. A universal beam (also known as an I beam) provides significant improvements to rigidity, reducing seat wear for an enhanced service life. The high seating position ensures that forces are transmitted more directly downwards, meaning conversion of traffic loads into mortar-compatible compression forces. Keyway lifting points are included on the frame, improving safety for operatives when handling. Unlike sharp, square-edged frames, rounded edges reduce stress concentrations and minimise crack formation. Surface texturing above and below the flange enables better mortar engagement, reducing any lateral movement which could result in cracking. Ranges packed full of innovation Pulse Manhole Covers Pulse was developed for the telecommunications sector and is used within network infrastructure applications. Unite Manhole Covers The Unite range of manhole covers incorporates features used within applications subject to traffic loading conditions and installation requirements. Unite D400 Gully Grates Our premium Unite D400 gully grate combines new technology with proven features to deliver a super long-life and the lowest whole-life cost of any D400 gully grate. Highway Manhole Covers The Highway range includes a wide selection of shapes, sizes and configuration options, including HaloHinge covers, which incorporate a hinged design for lifting during operation. Highway Gully Grates The Highway range offers our most extensive variety of gully grates, including three flange, four flange and V gully grates. Highway D400 Surface Boxes Our Highway D400 surface boxes include indexed covers and enlarged frame corners, with surface finishes achieving 70+ PSRV. Tristar D400 Manhole Covers Tristar D400 ductile iron access covers comply with BS EN 124:2015 and carry the BSI Kitemark. The range incorporates design features used within applications subject to traffic loading conditions. Tristar Gully Grates The Tristar range of gully grates are our most competitive range to date. Our straight bar hinged gully grates address many of the most common issues related to cost-effective products. Tristar Surface Boxes Our surface boxes are manufactured from ductile iron and used within enclosures for access to below-ground infrastructure. SafeSeal Manhole Covers A15, B125 and C250 manhole covers which all incorporate a single labyrinth seal, helping to prevent odour escapes and water ingress. Cargo F900 Manhole Covers Cargo access covers are used within shipping, aviation and industrial applications subject to high load conditions. Hercules D400 Manhole Covers Hercules offers a cost-effective alternative to large fabricated steel solutions for applications requiring ductile iron's strength in a 1.2m x 1.2m size. Vault D400 Manhole Covers Exceeds the requirements of LPS 1175 SR3, providing security for valuable communication assets used in the development of smart motorways and the control of matrix signs. Force D400 Manhole Covers Round, hinged manhole covers incorporating anti-debris features to support lifting during operation. Armadillo Protector shells and SiltShield will protect your ironwork during the construction phase, ensuring manhole covers and gully grating are ready to start their service life in as new condition. ClickLift ClickLift provides housing developers and contractors with huge savings in terms of time, money and hassle. Allowing whole estates to have their manhole covers raised to the final surfacing level, in as little as a few hours. UniPak® UniPak is a BBA HAPAS approved rapid-set bedding mortar for ironwork installations. It is used in applications where bedding performance forms part of chamber construction and installation. Seal Plates Seal plates are a retrofit solution for Unite manhole covers, made to prevent or reduce surface water runoff entering the chamber (compatible with Unite codes ending in/KUE). Flood and Odour Control Plate For use with our ductile iron access covers and frames, the flood and odour control plate is used to limit the egress of chamber odours and the ingress of flood water. ScrewLift™ ScrewLift is a univeral frame levelling kit, suitable for use with nearly all of our D400 and E600 manhole covers and gully gratings. GritBlocker An anti-blockage keyway insert that simply fits into the manhole cover keyway, reducing the risk of debris from blocking the opening while allowing a lifting key to be inserted. Reducer ring Provide a second line of defence against chambers being accessed by unauthorised people or potential falls if accidentally left uncovered. Ladders and step irons The range includes chamber step irons for installation in concrete and brickwork, as well as composite modular ladders used within chamber access applications. Lifting keys Our range of lifting keys is used for handling access covers across our ductile iron, steel and aluminium ranges. Share this page

Geoworks has replaced Wrekin Geosynthetics, our geosynthetics products are available at Geoworks.eco

Innovation is at our core

Redefining access solutions

Authentic innovation is hard to imitate

Innovation built through experience

Innovation has always been central to how we develop our products and support our customers. Over decades of working closely with contractors, merchants, specifiers and local authorities, we have built a deep understanding of the real challenges faced on site and across the wider infrastructure network. That understanding drives the way we think, design and improve.

Rather than innovation for its own sake, our approach focuses on solving practical problems. We look carefully at how ironwork performs in the real world, from installation through to decades of service under traffic. This insight allows us to develop features, systems and ranges that address common issues such as installation time, reliability safety and long-term maintenance.

Our innovations are shaped through collaboration. By working alongside engineers, contractors and industry bodies, we are able to test ideas, refine designs and ensure that new solutions meet the standards and performance requirements expected in modern infrastructure. Products within our ranges are made to meet recognised specifications such as BS EN 124 for manhole covers and gully gratings, ensuring consistent strength, reliability and safety in use.

This collaborative and evidence-led approach has helped us introduce solutions that improve efficiency on site, reduce disruption and enhance the longevity of installed ironwork. Systems such as frame raising solutions, protective systems for construction phases, and enhanced seating and hinge designs are all examples of how we have responded directly to industry challenges.

Innovation also influences how we operate as a business. It drives continuous improvement in design, manufacturing and technical support, ensuring that we provide reliable solutions backed by practical expertise. Our teams remain curious and responsive, always looking for ways to support the people who specify, install and maintain our products.

By combining technical knowledge, industry collaboration and a clear focus on solving real problems, we continue to evolve our product ranges and develop solutions that help build stronger, safer and more resilient infrastructure.

How Wrekin access covers are made

Road breaking up around gully grate installation creating a pothole

POTHOLES - MORE THAN A SURFACE ISSUE

Helping to find solutions to the UK's pothole problem

Potholes across the UK’s road and highway network are a real problem. But did you know ironwork specification and selection can affect and even increase the likelihood of a pothole forming?

Our new report explores;

Some of the ways in which potholes are caused; including identified links to ironwork
What features of ironwork can increase the likelihood of pothole formation
Suggests solutions you should be looking for when specifying ironwork
and much more.

Get your copy of the report

LEADING INNOVATIONS

This is just a sample of some of the key innovations Wrekin have brought to market throughout its history.

Hinged in three directions to allow the product to fit in any required orientation.
Both covers of the double triangular grating feature I beams that interlock to provide high rigidity while still allowing the grating to hinge as one unit.
Frame gussets are supports which reinforce the corners where the frame sections meet, distributing stress evenly, preventing damage to the frame or the access cover.
Gritblocker, an anti-blockage keyway insert which simply fits into the manhole cover keyway preventing debris from blocking the opening and allows a lifting key to still be inserted.
A universal beam (also known as an I beam) provides significant improvements to rigidity, reducing seat wear for an enhanced service life.
The high seating position ensures that forces are transmitted more directly downwards, meaning conversion of traffic loads into mortar-compatible compression forces.
Keyway lifting points are included on the frame, improving safety for operatives when handling.
Unlike sharp, square-edged frames, rounded edges reduce stress concentrations and minimise crack formation.
Surface texturing above and below the flange enables better mortar engagement, reducing any lateral movement which could result in cracking.