About Us

Who we are

We are ISWUK LTD, formerly known as Interstellar Steelworks Limited. Founded in 2016, based in the South East of England. Our team now consists of over 35 years of combined industry experience.

What we do

We are specialists in both the interior and exterior design, supply and installation of high-quality glass and stainless-steel design solutions. We cover various applications – balustrades, staircases, viewing platforms, balconies, ramps, entrance canopies, railings, Juliette balconies and much more. All works are managed by our experienced team to ensure; smooth running, the meeting of compliances and building regulations, and a high-standard of finish.

Why we do it

We are a passionate team that enjoy what we do and take pride in our work.

Our experience and skills sets only grow with each project we take on. We are forever innovating and adapting to accommodate the changing landscape around us and everyday challenges faced by those in construction.

The most rewarding part of our job is handing over stunning projects and having happy clients who often use us therafter!


Want to talk?

Contact us today to discuss your project(s). Please complete the below form and we will get back to you as soon as possible. Alternatively you can request a call back or call/email us directly.

What we value

These values are the foundation of our company culture:


Safety in the construction industry is of upmost importance. Safety comes first in all that we do at Interstellar – both for the physical and mental wellbeing of our customers, suppliers and employees.

Honest & Fair

We are honest, open and respectful in our communications both internally and externally. We are fair in our processes, always seeking the facts to provide advice, insight and improvements.


We take full responsibility for our actions, decision making, and all works carried out on projects. We trust our employees to honour our commitments to clients, suppliers, and each other.


Perfection is a result, excellence is a process – from start to finish, your journey with ISW will consist of great performance from our teams and top-quality results on all projects. It is an act of habit.

Join us?

Help build the future with non-stop learning and laughter by joining the ISW team.
We’re always looking for great people to join our growing teams, whether that be on a permanent basis or by project, on the tools or in the office.

Based in the South East of England our projects span the rest of the UK, therefore we look for reliable and trustworthy labours from all over the country.

What we offer

For our employees we offer flexible working, competitive rates of pay, monthly team building, development and performance reviews, company benefits scheme, Birthday’s off work paid!