Head Office: 

Instilling Confidence in Clients 

Our reputation is established and we get repeat business from our long-standing clients who know that they get the best service on the market and have confidence that we install and document our work to the highest standards. 

Leaders in Quality & Safety 

Our quality assurance processes are industry leading. We have our own staff that operate as independent quality and health and safety inspectors to ensure quality and safety is a top priority. 

An Accredited Contractor 

Established in 2007, we are accredited with IFC, ASFP, ISO 9001, working throughout the UK as passive fire protection specialists. We are UKAS accredited and our dedicated team are QA professionals. 

Fire Barrier Services UK 

GRJ Contracting can offer a range of fire barrier services that work to prevent the rapid spread of fire within concealed spaces.  
They are specifically designed to provide cavity fire protection by creating resistance to fire spreading in spaces like ceilings and roof voids, and come in a range of options, both flexible and rigid for the right fitting protection within your building. 
Our fire barrier systems are a solution to internal horizontal voids around building perimeters between floor slabs and the building envelope. In the event of fire, cavity barriers will expand and seal the void to slow the burn and extend time, offering invaluable and life-saving solutions. 
Here at GRJ Contracting our deadicated contracting specialists can help protect and maintain your building and systems. If you are not sure what the issue is, or want to check your compliance then visit GRJ Surveying, where our surveying specialists can assist you. 

Why Cavity Fire Protection UK from GRJ? 

With over 15 years of experience in the construction industry, GRJ Contracting instals cavity fire protection across the UK, achieving long-lasting results. 
A cavity barrier is a mechanically-fixed lining that protects your structure in the event of a fire. Its primary intention is stopping the spread of flames and smoke via the walls. 
This type of passive fire protection works by sealing off any gaps in your building's cavity. The materials used in fire barriers are sensitive to high temperatures, which means they expand when exposed to heat. 
Here at GRJ, we work with a selected list of suppliers that provide only the most reliable building materials. This is why you can have complete trust in our fire barrier services. 
Whatever your requirements, speak with us so we can advise on the best course of action for you and your building. 
Frequently Asked Questions 
Cavity fire barriers are an element of passive fire protection that is used to prevent the spread of fire and smoke via the walls in a building. A cavity barrier works by sealing off internal gaps within walls, ceilings and other cavities in a building during a fire. The materials used in fire cavity barriers react to high temperatures and will expand when exposed to open flames. 
Fire cavity barriers are required to be installed near internal cavities including eaves and verges, as well as around openings including windows and doors, and entry/exit points. They should also be placed at the junction where an external cavity wall meets a compartment floor or wall. 
Yes, fire cavity barriers are required in passive fire protection to prevent flames and smoke from spreading throughout the building via the walls. There are strict regulations in place to make sure cavity barriers are as effective as they can be. According to the BS 9991 regulations due consideration as to how fire can spread through the structure of a building needs to be taken. To meet this requirement, the installation of vertical and horizontal cavity barriers is necessary. 
The Fire Safety Approved Document B2 regulations require cavity barriers to provide as a minimum 15 minutes of fire resistance and hold their structural integrity for at least 30 minutes. 
Two Chamberlain Square

    Take the first step to protect your building 

Book a FREE SITE EVALUATION today and our team will be in touch to discuss how GRJ can offer a full personalised passive fire protection solution tailored to your business



British Gypsum

"GRJ are highly respected" 

GRJ are a highly respected and ‘go to’ sub-contractor to the client. Over the last few years GRJ has been our go-to contractor in terms of Fire Protection, we used GRJ extensively in Milton Keynes where I was based, to the point where, when I saw Andy on-site, I had full confidence that we were in safe hands. 
Paul Short – Willmott Dixon 




Two Chamberlain Square is the second building in the first phase of the Paradise development in central Birmingham. 


3 Arena Central will provide 240,000 sq ft of Grade A commercial space over ground and 13 upper floors opening out onto developing Bank Court within the heart central Birmingham. 


Warwick Arts Centre will see Willmott Dixon create the region’s leading cultural centre when complete in early 2021 that will be a key venue in Coventry’s year as UK City of Culture 2021. 
GRJ Contracting Ltd was established in 2007 with the purpose of specialising in the design, supply, and installation of quality passive fire protection systems for the commercial and residential UK construction market. As an accredited company certified with IFC, ASFP, ISO 9001 and Cyber Essentials based in the Midlands, we operate nationwide on new build and legacy construction projects of all scales and our range of services includes Intumescent Coatings and Rigid Boarding systems for Structural Steelwork protection, Service Penetration Firestopping, Mineral Fibre Boarding systems for internal building fire compartmentation and more. 
Terms of Use | Privacy | Cookies | Copyright © 2024 GRJ Contracting Ltd. All Rights Reserved. Branding by Carl Murch Design. 
Our site uses cookies. For more information, see our cookie policy. Accept cookies and close
Reject cookies Manage settings