Unison Joints are world specialists in Building & Seismic Expansion Joint Systems designed to maximise performance, longevity and fit for purpose.

Unison Joint’s bespoke cover plates WORK, and continue to work while others fail. No leaking Water Proof Seal!!!

Architectural Joints

We supply Architectural projects globally- from stadiums and massive shopping centres, to airports, carparks and hospitals.

Australian Manufacturer

Unison Joints is the only Australian owned (since 2001) Expansion Joint manufacturer to develop commission and produce AS/NZ compliant Fireseals

Expansion Joints In Stock

Unison Joints keep an extensive stock of all our popular expansion joints, seals and cover plates for quick dispatch.

Unison Joints Develops, designs and produces our full range of Pyrotx fireseals IN HOUSE.
Unison Joints supplies high movement Pyrotx fireseal NATA certified compliant with AS1530.4 & AS4072.1 (some BS 476.20) for gaps 15mm to 350mm.
Beware of inferior imported fireseals. The Australian National construction code mandates that fireseals comply with Australian standards, not UL or other codes.

Bespoke, high performance, fully assembled coverplate for floor, wall, ceiling, roof & Facade

Unison custom coverplates have evolved since our beginning in 2001 through working with some of the finest design professionals in the world.

Quality Products


Bespoke Design

Superior Service


Unison Joints' Innovative Approach

Unison Joints is the leader in new coverplate designs and longer lasting Expansion Joint Systems

Unison Joints are the innovators in fireseals, waterseals and expansion joint coverplate systems: - We provide movement solutions for construction. Unison have supplied our products around the globe, and work closely with architects and specifiers to continuously improve our products and customise solutions for your situation.

What Our Clients Say

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Car Park Renovations? Ask about a Unison Leak Assessment.

Engineer supported expansion joint advice at your fingertips. Call to speak with one of our Engineers.

Competitors Offering Australian Certified Fire Rated Joints
Years of Specialisation in Custom Designed Expansion Joints
Number of Projects that Unison has Successfully Completed

Engineering Assistance

Unison’s in house engineers provide product support and engineering design services to the construction industry. Our 20 year commitment to engineering excellence has produced our wide range of designs and patented solutions, enriched by many years of product testing and experience. Our approach is to research and investigate the specific nature of each individual project and its requirements, and then, to provide the ideal solutions and specifications.

Unison Joints is on its way to become recognised as the world’s foremost expansion joint manufacturer by our continuous improvement process and commitment to high performance cover plates, that last longer, work better and protect our client’s reputations.

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Please Note: Design, specifications and other information on this website are subject to change without notice. Unison does not accept liability where the material on this website is misconceived, exploited, or lacks conformity. The intention of this information is to provide a reasonable description of products, procedures and capabilities.