Formerly our Acoustica division,
Elta are your all in one Ventilation
& Noise Control specialists.

We specialise in both ventilation and acoustics, providing you with a comprehensive one-stop solution. From powerful ventilation systems to specialised noise control equipment, we simplify your projects with a unified approach, ensuring efficiency and excellence at every step. Our expertise in acoustics enables us to offer unparalleled guidance and support to solve complex noise issues.

More Than Simply Silencers

We cover both Industrial and Commercial applications. Whether you’re grappling with HVAC noise and need ducted attenuators or require tailored solutions for an environmental noise control project, we’re here to help.

All our noise control products are crafted in-house at our manufacturing facility in Colchester, UK. Our team comprises of fully qualified and MIOA registered acoustic engineers, enabling us to deliver industry-leading engineering solutions for a wide array of noise control challenges.

Silencer & Acoustic Analysis

Using our Fan Selection Program, you can easily identify a suitable silencer for your specific setup. This program enables you to select both fans and acoustic components, ensuring precise sound level calculations. The built-in acoustic analysis tool allows the calculation of noise levels and offers a rough estimate of the expected noise level.


Attenuators, also known as duct silencers or mufflers, are used to reduce the noise generated by fans and HVAC systems. We manufacture both custom and off-the-shelf solutions, including our standard rectangular and circular silencers.

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Acoustic Enclosures

When significant noise issues arise from machinery or plants, an acoustic enclosure is often required. Acoustic enclosures contain and reduce noise pollution. We offer a complete solution, from planning and design through to installation.

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Acoustic Louvres

We also engineer acoustic louvres designed to minimise noise while allowing air to pass through. Commonly used in buildings and industrial settings, these louvres are ideal for ventilation systems and air handling units.

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Circular Silencers

Explore our circular silencers, available in spigot-mounted and fan-mounted types. Sizes range from 250mm to 1600mm and handle temperatures up to 70°C. We also offer bespoke lengths and diameters.

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Rectangular Silencers

Our rectangular silencers, available in standard lengths from 600mm to 2400mm, are ideal for use with AHUs and plant systems. Our silencers can be customised to your requirements!

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Acoustic Ancillaries

From fan flanges to mounting feet, we design and manufacture all ancillaries in our UK manufacturing centre to aid installation and perfectly fit our attenuation product range.

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Bespoke Solutions

Not sure where to start or have a complex project? We offer full acoustic surveys and bespoke construction options designed to meet your needs. Trust us with your project today.

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Diameters from
315mm to 2000mm

200°C, 300°C & 400°C
Operating Temperatures

Compliant For
Smoke Systems

Acoustic Support

Our team of fully qualified and accredited MIOA consultants brings years of experience to help with everything from regulatory measurements, noise mapping, and emissions to problem identification and solutions. We also conduct onsite BS 4142 and BS 5228-1 surveys.

Acoustic Manufacturing

We manufacture all our products at our own dedicated facility, whether for standard or bespoke applications, which has cultivated diverse and specialised manufacturing expertise.

Our commitment to quality drives continuous investment in the latest product design software and production planning systems to streamline internal processes.

All components are crafted using our Fiber Laser, CNC metal folding, and metal spinning machines to achieve finer tolerances and eliminate human error during assembly.

Our dedication to excellence is evident throughout our operations, managed according to ISO9001:2015 quality standards.

Engineering Capabilities

We understand the importance of accuracy while designing acoustic solutions.

That’s why we leverage the latest design software and techniques, alongside our fully qualified design engineers, enabling us to provide industry-leading engineering solutions for various noise control challenges.

Utilising 3D modeling and SolidWorks packages empowers us to confidently propose and design systems and products with inherent quality.

Our team includes qualified and experienced specialist engineers who drive innovation in developing new solutions and provide comprehensive technical advice services.

Start A Project Today.
Fill in the form below or call 01206 852389.


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