Sealant Application, Fire Doors & More
Available Monday to Friday 8:30am - 4:30pm to answer your questions.
Nationwide Teams to Meet Your Needs
Trusted by the UK’s biggest brands for passive fire protection & sealant application.
When it comes to building safety and compliance, choosing the right partner is more than important—it’s essential. At Optimum, we provide expert passive fire protection and sealant application services that form a critical part of your building’s long-term safety strategy.
Our certified fire protection division offers comprehensive fire stopping solutions, backed by third-party accreditation and delivered by skilled professionals. Whether it's a full fire survey or remedial fire stopping, we make sure your building is not only compliant—but stays compliant.
Alongside this, our sealant application division provides precise, durable finishes that meet the demands of modern construction. From internal mastic work to external expansion joints, our team ensures high-performance results every time.
Your compliance, our commitment.
A message from the Founding Director Paul Clark
"At Optimum, we combine hands-on experience with cutting-edge technology. Our cloud-based systems provide full transparency and efficient digital documentation, making compliance straightforward and traceable from survey through to completion".
TRUSTED BY THE BEST
We’re proud to work with leading contractors, developers, and property managers across the UK. Delivering trusted fire protection and sealing solutions that meet the highest standards
CERTIFIED AND COMPLIANT WITH
What Our Clients Say
“Optimum, offer a consistent professional approach to every project they have been involved in.”
Jason Bedford / Project Manager / L&Q
“A professional, pro active and efficient organisation. Great project management, swift and clear cost information from the project QS.”
Mathieu Kohl/ Head of Commercial / Bellway Homes
“Outstanding Service and quality of work, a very professional and knowledgeable supplier in their fields.”
Samuel Gregory / Commercial Manager / Ballymore
"After a disastrous experience with another company, someone recommended me to Optimum. The whole process with Optimum was the complete opposite to my earlier experience. The whole process was extremely efficient. I would highly recommend Optimum."
Philippa Middleton - Kings Estate
"Optimum recently carried out the work to make my entrance doors conform with current fire regulations. The engineer took great trouble to achieve a perfect result. They worked efficiently over several hours, and kept inconvenience to a minimum cleaning up thoroughly when finished. I am most satisfied with Optimum’s service".
George Warren - Kings Estate
On The Blog
Closing the Gaps: The Importance of Remedial Fire Protection Works
In a perfect world, fire protection would be designed and installed flawlessly from day one. But in reality, buildings age, standards evolve, and earlier work doesn’t always meet current compliance...
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The Unsung Hero of Building Integrity: Professional Sealant Application
When people think about construction or refurb projects, they often focus on the visible finishes — the walls, floors, or stylish fittings. But it’s often what’s beneath or between the surfaces tha...
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Why Fire Protection Matters – And How Optimum Contractors Deliver It Right
When it comes to protecting lives and property, few things are as critical – or as regulated – as fire safety. At Optimum Contractors, we don’t just install fire protection systems — w...
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FIRE PROTECTION SURVEYS BY EXPERTS
Identify risks early and stay compliant. Our fire protection specialists provide detailed inspections with clear, actionable reports.
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SEALANT APPLICATION
Professional mastic application for a clean, durable finish—protecting against moisture, air leaks, and fire risks across all surfaces.
FIRE DOOR REMEDIALS