Noise wall constructed at Holcim Badgerys Creek site in Sydney by Wallmark for operational noise mitigation.

Plant & Equipment Acoustic Barriers

Large-scale noise control for industrial, mechanical and electrical plant.

Keep noise under control.

Large plant and equipment can generate noise that travels well beyond where it’s produced. The right acoustic barrier puts effective separation between that noise and the people, properties and environments around it.

Wallmark designs large-scale barriers for transformers, substations, generators, cooling systems and industrial plant, shaped around the equipment, site and acoustic requirements.

Go high. Follow the site boundary. Screen an entire plant area. Use absorptive or reflective systems. The barrier is built around what the project needs the noise to do.

Acoustic solutions for industry

Large-scale acoustic barriers are used wherever operational noise needs to be managed across a site, boundary or sensitive interface.

The common challenge is noise generated by major infrastructure operating close to site boundaries, neighbouring properties or sensitive receivers — often continuously and from multiple sources at once.

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Every noise source leaves a different acoustic footprint.

The steady low-frequency hum of a transformer behaves very differently from the broadband noise of cooling plant, the tonal output of fans and compressors, or the fluctuating noise generated by heavy machinery and vehicle movements. Across a large site, these sources can combine, reflect and propagate in very different ways.

That acoustic profile shapes the barrier itself. Frequency and tonality influence the required acoustic performance. Source height and location affect barrier geometry. Site levels, buildings and hard surfaces influence propagation and reflection. Receiver locations determine where control matters most.

The result is an acoustic barrier designed around how noise actually behaves across the site — not simply the equipment producing it.

Diagram showing industrial noise sources including plant and machinery, BESS equipment, HVAC and Mechanical plant, traffic and vehicle movements, industrial operations and electrical infrastructure.

Explore Wallmark's Plant & Equipment Noise Control Projects

Brendale BESS Acoustic Barrier
Battery Energy Storage Systems (BESS)
Brendale BESS Acoustic Barrier
Supernode BESS Hybrid Retaining and Acoustic Barrier
Battery Energy Storage Systems (BESS)
Supernode BESS Hybrid Retaining and Acoustic Barrier
Western Sydney Acoustic Barrier – Holcim Badgerys Creek
Industrial
Western Sydney Acoustic Barrier – Holcim Badgerys Creek
Bunnings Hervey Bay Acoustic Noise Barrier
Commercial
Bunnings Hervey Bay Acoustic Noise Barrier

Plant and Equipment Noise Control FAQs

Acoustic barriers can be designed around transformers, substations, generators, chillers, cooling systems, HVAC plant, compressors, pumps, processing equipment and other fixed mechanical or electrical plant.

A correctly positioned barrier interrupts the direct sound path between the noise source and receiver. Its height, length, location and acoustic properties are determined by the site geometry and required noise reduction.

The design is influenced by the frequency and character of the noise, source height and location, receiver positions, site levels, surrounding structures and required acoustic performance. Structural loads, foundations, access and services also need to be incorporated into the physical solution.

Reflective barriers primarily block and redirect sound, while absorptive barriers also reduce the amount of sound reflected from the barrier surface. The appropriate system depends on the acoustic design, equipment arrangement and surrounding environment.

Barrier height is project-specific and should be determined by the acoustic and structural requirements. Large industrial applications can require substantial barrier heights to interrupt the sound path from elevated equipment or protect distant receivers.

Yes. Barrier layouts can incorporate gates, removable sections and other access requirements while accounting for equipment maintenance, replacement and ongoing site operations.

Ideally during planning and design, once equipment locations and acoustic requirements begin to take shape. Early coordination provides greater flexibility to resolve barrier geometry, foundations, services, drainage, access and construction interfaces before the site layout is fixed.

The project’s acoustic consultant typically establishes the applicable noise criteria and models the performance required. Wallmark then develops the barrier system to meet those specified acoustic requirements while addressing the structural and construction requirements of the project.