About us

Invisible Connections supplies the concrete construction industry with ‘unseen’ telescopic connection systems for stairs and landings, beams and columns. We are also specialist manufacturers of the FERBOX reinforcement continuity system, to application requirements.

Invisible Connections Ltd is the UK partner of Norwegian company, Invisible Connections AS, specialists in the development and manufacture of telescopic connectors for concrete construction for over 30 years. During this time, hundreds of thousands of telescopic connectors have been used in construction projects around the world.

Innovation, versatility and reliability

Our products have been used in projects ranging from high profile sports stadia to prestigious residential, retail and commercial property developments.

Technical expertise, end to end solutions and integrity

Our team includes engineering and product specialists who like to innovate and find ways of doing things better. We are committed to ongoing product development to ensure that our customers experience maximum benefit from our product solutions.

We strive every day to understand and satisfy the specific needs of concrete precasters and frame contractors, designers and specifiers. We deliver value through product and application innovation and enjoy long term relationships with many of our customers, who repeatedly work with us as a trusted supplier.

Our in-house services include manufacturing, engineering support, and efficient point of sale administration.

Meet the team

Introducing some of our key people. We’re here to help.

Derek Brown

Managing Director

With over 30 years as a product specialist within the construction industry, Derek’s most notable success was originating the first reinforcement continuity strip product to achieve widespread appeal, ‘Kwikastrip,’ which he built to become the market leader, before being acquired by Halfen in 2001. More recently, after more than a decade in high profile positions within the supply sector, Derek recognised the opportunity to renew his owner-manager experience and teamed up with the Norwegian manufacturer, Invisible Connections AS, to become their UK partner. At the same time, Derek renewed his manufacturing leanings by establishing the current factory in Thame, Oxfordshire, principally to manufacture the FERBOX reinforcement continuity system.

Derek places high value on building long-term relationships with customers, suppliers and colleagues via an honest and earnest style of management.

Lesley Brown

Finance Director

Lesley has enjoyed a long career in finance, working freelance for several SMEs. She is used to collaborating closely with owner-managers and producing detailed management accounts, which she supports with interpretation and advice. Lesley has worked for architects, developers and together with Derek for many years, so is familiar with the customs and practices of the construction industry. She takes pride in doing as she says and does her best to inspire a similar mindset in her financial counterparts at customers and suppliers!

Steve Fordham

Steve Fordham

Technical Manager

Steve is an experienced mechanical engineer who brings crossover skills acquired whilst working within various steel and concrete disciplines. Steve’s primary focus is to technically support the growing customer base for telescopic connectors and to share his understanding of the many benefits this construction method brings to all members of the specification and construction chain. Steve is happy to present lunchtime seminars at specifiers’ offices and conduct toolbox presentations for ‘hands-on’ users.

Ross Tew

Sales Manager

Ross brings a wealth of experience from the construction industry, most recently leading the sales office for a specialist building and construction accessories supplier. Having also had technical experience with an international fixings specialist, Ross is adept at finding the best practical and commercial solution for the customer and takes pride in building a great ‘customer experience’.

Anthony Mather

Production Manager

Anthony has been involved with the manufacture of reinforcement continuity systems for some 20 years, so understands very well the characteristics unique to the product, as well as the requirements of customers who depend upon a timely and reliable service. In addition to overseeing all aspects of production and CARES quality management requisites, Anthony also manages transport and logistics, ensuring deliveries are distributed nationally and individual site requirements for suitable vehicle type (FORS) and booking in slots are accommodated.

Priyanka Ravichandran

Priyanka Ravichandran

Structural Engineer

Priyanka is an MSc. structural engineering graduate with a civil engineering background and over 4 years commercial experience specialising in precast design, including structural analysis and drafting. Her engineering experience has focused on precast and on-site concrete structures, for clients including Rolls Royce, Amazon, Aldi and Levis.

In her role with Invisible Connections, Priyanka provides high quality technical and practical support to specifiers, precasters and in-situ concrete contractors, for the accurate selection and application of telescopic connectors on a diverse portfolio of reinforced concrete and hybrid construction buildings in the UK and Ireland.

I’ve used your services on my last three projects (telescopic connectors for precast and continuity strip for in-situ). You’re very good at accommodating site demands for lead-in times and value competitiveness. Very happy with the service I’ve received on all three projects and hope this relationship will continue on future developments.

Paul Dean, Project Manager (Qcf), JP Dunn Construction Ltd 
Paul Dean, Project Manager (Qcf), JP Dunn Construction Ltd

Thank you for sending the calculations and installation advice. The new calculation software looks great. Very clear, user friendly and with more design checks than the previous version. It’s a pleasure to see how you are constantly improving.

Stefan Pauceanu, Senior Structural Engineer, Ground Construction Ltd 
Stefan Pauceanu, Senior Structural Engineer, Ground Construction Ltd

We have completed installation of our stairs in both cores, using TSS connectors. Everything went smoothly, quickly and easily. The new anti-uplift brackets have done the job perfectly.

Matthew Bialecki, Senior Engineer, J. Coffey Construction Ltd 
Matthew Bialecki, Senior Engineer, J. Coffey Construction Ltd

Having FERBOX pre-sized is great from a quality and time-saving perspective, because if you use a regular continuity box, you end up having short lap lengths, depending on where you cut it. It goes back to your time spent fixing, looking for things, cutting them and having to retape corners and ends to stop concrete going in.

Ali Solki, Project Engineer, A J Morrisroe 
Ali Solki, Project Engineer, A J Morrisroe

We were thinking how we could give the architect what they wanted: a finished landing with a shadow gap all around. We used the telescopic connection system from Invisible Connections, which made it a lot easier, both to install the wall recesses and to install the stairs.

Ali Solki, Project Engineer, A J Morrisroe 
Ali Solki, Project Engineer, A J Morrisroe

Telescopic connectors provide us numerous advantages for precast stair installation. Apart from improved time and efficiency, the health and safety gains over traditional support methods are a key driver to satisfy our own needs, as well as those of our clients.

Shane Dunleavy, Project Manager, Morrisroe 
Shane Dunleavy, Project Manager, Morrisroe

We hadn’t typically gone the ‘specials’ route before. But, by investing a little upfront time to schedule our FERBOX requirements, we gained a smooth supply and installation process – without wastage or complication – and exceeded the programme demands of our slip-formed cores.

Adrian Paul, Project Manager, O’Keefe Construction (Greenwich) Ltd 
Adrian Paul, Project Manager, O’Keefe Construction (Greenwich) Ltd

As specialists in precast concrete car park construction, we use telescopic connectors for many key applications. Particularly, the BSF system helps us to construct a ‘modern’ frame without cumbersome corbel supports and enables rapid assembly on site. The technical back-up provided by Invisible Connections provides us with added reassurance.

Peter Crofts, Precast Design Manager, SCC Design Build Ltd 
Peter Crofts, Precast Design Manager, SCC Design Build Ltd

Invisible Connections are an outstanding company to work with. Between Ross in sales and Derek on the technical side of things, iC have an offering which the rest of the market would do well to get close to. I can’t credit these two individuals enough for the support they have given me for both standard and bespoke FERBOX connections – some rather more complex than others!

Iain Harding, Project Manager, Keltbray Structures 
Iain Harding, Project Manager, Keltbray Structures

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