JAC Basement & Steel Construction

Fifteen years ago J.A.C. Construction realised there was a growing demand for a fabrication company to offer more than just install steel. The need for structural alterations was being driven by architects, engineers and developers so that the new contemporary opened space designs could be applied to existing buildings. J.A.C. offers unique service to our clients whether high end developers, refurbishment companies or self-build project.

From the design and installation of temporary works to the controlled demolition of existing structure, we install pad stones, excavate pad foundations, and install re-enforced concrete. And once the temporary works has been removed, we will make good existing structure leaving your project ready for fit out.

We carry out underpinning and for the last five years have been installing basements as a specialist sub-contractor or main contractor. As a company, there are no alterations to the structure of a building that J.A.C. would not complete.


Temporary works:

Architects and structural engineers are designing more ingenious and effective ways to alter the structure of a building. As with any of these designs, temporary works will play an essential part to the design process. Having one company that can design and install temporary works is a vital part of the success to your project.

So, whatever your individual requirements for temporary works, we have the experience and knowledge to complete your project successfully. We have full Professional Indemnity Insurance and our own qualified and experienced temporary works co-ordinator who can meet all Health and Safety requirements.


Structural steelwork:

J.A.C. Construction fabricate all of our structural steelwork in-house at our Perivale workshop. We are a CE registered Company that offers connection designs with full fabrication drawings. In today’s design process adapting existing structural steelwork on-site to combine with new steelwork is a fundamental part of the structural alteration process.

Unlike other companies who only require a single coded welder to achieve the relevant BS standards, we require that all of our welders to be coded to BSEN 278-1 2004 so that we can guarantee the highest possible quality welding in our workshop or on-site.

As a company we are used to the sometime difficult process of delivering and manoeuvring steelwork on-site. Because you are dealing with one company, we take full responsibility for on-site dimensions and accuracy.
Structural alterations

J.A.C construction is the only company in London with a comprehensive and unique structural alteration service. When you combine, design temporary works, controlled demolition, waste removal, structural steelwork, pad stones, excavation, underpinning, , pad foundations, reinforced concrete beam oversites, basement construction, concrete and steel lintels, brick and blockwork alterations, dry packing, grouting, chemical fixing and all of these offer are complete building package “Under One Roof”.


Basement construction

In London, basement construction is one of the fastest growing areas in our industry. With the increasing demand for space in the London property market, J.A.C Construction offer a competitive basement construction service. Whether as a specialist sub-contractor or a main contractor, we can help you achieve a successful outcome to your projects.

Basements can sometimes be a daunting and overwhelming task combined with the essential need for temporary works and steelwork, having one company will give you the confidence to expand into this fast growing business.

Our extensive knowledge of structural alterations and our specialist skills including underpinning, reinforced underpinning, excavation and disposal, underground drainage systems, pumping systems, and membrane tanking systems should give you confidence of a competitive and professional basement service.