Constructionline Gold Accreditation

Constructionline Gold demonstrates that we’ve passed a thorough, independently verified assessment, covering everything from health and safety to quality, environmental management and ethical standards, giving clients confidence that we meet high industry requirements.

JOSCAR

JOSCAR shows we’ve passed rigorous industry-wide checks: quality, safety and compliance to data security and ethical business practices, qualified to supply to aerospace, defence and security sectors.

Gas Safe Register

Gas Safe registration confirms that our engineers are fully qualified and legally certified to work safely and competently on gas systems and appliances, ensuring all gas work is carried out safely, correctly and in full compliance with UK regulations.

Safe Contractor

SafeContractor accreditation shows that our health and safety practices have been independently assessed and verified, demonstrating that we operate to high industry standards and prioritise safe, responsible working across every project.

ISO9001

ISO 9001 certification demonstrates that we operate a proven quality management system focused on consistency, continual improvement and customer satisfaction, ensuring our services meet recognised international standards.

Cyber Essentials

Cyber Essentials certification confirms that we have robust controls in place to protect our systems and data from common cyber threats, helping safeguard our business and our customers through secure, responsible digital practices.

ARIES – Accident Repair Industry Environmental Standard

ARIES accreditation reflects our proactive approach to environmental responsibility within the accident repair sector, recognising our efforts in minimising waste, reducing emissions and operating more sustainably day-to-day.

Why choose STL?

With industry accreditations and three decades of engineering experience, STL delivers proven quality, innovation and dependable end-to-end support.

Support you can trust

Our nationwide team of engineers provides maintenance, servicing, and rapid response support for every STL system.

Innovative engineering

Patented systems like TEMPO and BoothIQ deliver smart control, energy savings, and world-class spray quality.

Industry-wide expertise

Solutions built for automotive, aerospace, rail, marine, and industrial clients – in the UK and around the world.

Built for efficiency

With electric systems, heat recovery, and BoothIQ monitoring, STL helps reduce costs, emissions, and environmental impact.


Customer success stories

Hear from professionals across a range of industries about how STL spraybooths deliver reliable, high-quality results.

As a bespoke joinery company, we need installations to be carried out with care, precision, and minimal disruption. STL delivered our Spraybooth Technology installation efficiently and professionally, with a clear understanding of both the technical and regulatory requirements of our environment. Communication was straightforward throughout, the quality of the installation met our expectations, and the project was completed as agreed. We found STL easy to work with and would be happy to recommend them for similar projects.


Sharon Burke,
NBJ

"We turned to STL for our aircraft hangar installation because I knew they were the experts – they proved exactly why they have that reputation. From the first conversation, they were clear, responsive, and committed to doing the job properly. They delivered exactly what we needed and did it with integrity. It’s rare to find a team you can trust completely, but I can confidently say that’s what we've found in STL.’’


Neil Osborne,
Airbourne Colours

We have used Spraybooth Technology Ltd for over 20 years as specialist bespoke booth suppliers to WG and our rail industry work set ups. Jeremy and the team are very friendly and professional in meeting technical, environmental and exact booth solutions to our diverse sector requirements. They have met our requirements in various locations around the country and are the go-to name in respect to specialist spraybooth supply.


Joe Ptak,
WG Tanker Group Ltd

STL are much more than a spraybooth manufacturer, they are key to keeping our operations effective, efficient, and profitable. The wealth of knowledge and experience they have is second to none in the industry. Instrumental in helping redevelop some of our sites throughout the whole process chain, from inspection lighting to supplying power drop points for mechanical workflows. A company that can be relied upon, always professional and friendly, offering the best in service at a competitive price.


John Brown,
Divisional Operations Manager, BCA

The service admin team are very efficient and highly organised when it comes to booking in and coordinating work. The engineers are consistently excellent – professional, reliable and always resolving issues without any problems. On one occasion when we experienced a breakdown, an engineer went out of their way to provide prompt support, which was greatly appreciated.


Paul Harding,
MC Group

I have always found STL to be very professional, efficient and cost appropriate service provider. All queries or concerns are handled promptly and by experienced and knowledgeable team members who understand their customers’ needs and provide solutions to suit. Even when deadlines were tight, they always go over and above to see what can be done to schedule us in. It promotes a real feeling of being a valued and appreciated customer. All in all, great service from great people all creating a great company to deal with.


Brian Kerrigan,
DLG

STL have been a great partner, providing valuable support with design and layout, and offering clear, timely guidance. Their expertise and responsiveness have made a real difference to our projects since we started working with them in 2019. Their spray booths are both reliable and sustainable, and they manage the servicing to ensure we are always compliant.


Marita Sullivan,
Activate Group Ltd

STL’s preparation and professionalism during the Hangar 9 project were outstanding. Their contractor file passed an on-site audit with flying colours – all documentation, including permits, lifting plans, and certifications, was thorough and well-organised. Their site team maintained excellent housekeeping and followed PPE requirements throughout. STL has set a benchmark for the standard I now expect from all contractors.


Aerospace Customer,
UK

The service administration team are excellent at keeping us informed about upcoming work and always provide helpful reminders, which has been greatly appreciated. The engineers are consistently very good: friendly, efficient and helpful on site, and they always leave the area clean and tidy once the work is complete. We also really value the technical support provided over the phone. On several occasions issues have been resolved remotely, and even when an engineer visit was required, the team were able to get us up and running again until they arrived.


Matthew Mather & Austen Taylor,
Sytner Harrogate Audi
Accreditations FAQs

Below are quick answers to help you understand the accreditations STL holds, what they mean for your business, and how they support quality, safety, and compliance across our projects.