tel 01484 861 233 info@fnwengineering.com

Manufacturers of Air Diffusion Products Since 1969

Welcome to FNW Engineering Developments


At FNW we’ve been manufacturing and supplying air diffusion products since 1969.

During this time we’ve developed a loyal customer base which includes:

  • Architects and specifiers
  • Consulting engineers
  • Ducting manufacturers
  • Installers of air conditioning / extraction systems
  • Pharmaceutical / food / chemical Industries

Bespoke products

If you’re looking for a non-standard sized grille for a project, then we can help.

Thanks to our on-site production facility we can manufacture bespoke grilles and air diffusion products to meet our customers’ specific needs.

Specialist materials

We have the ability to manufacturecorrosion resistant grilles, diffusers and louvres in the following materials

  • Stainless Steel
  • Powder Coated Galvanised steel
  • Strong, Durable plastic extrusion

If you’d like to know more about FNW Engineering and our range of British made grilles and air diffusion products then call 01484 861233 or complete our online contact form.

Made in England


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ALL Air diffusion products supplied by FNW are manufactured at our West Yorkshire premises by our skilled staff and engineers.

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Air diffusion products supplied by FNW are all manufactured at our West Yorkshire premises by our skilled staff and engineers. View PDFs

Contact Us


FNW Engineering Developments Ltd.
New Street
Skelmanthorpe
Huddersfield
HD8 9BL

Tel: 01484 861233
Fax: 01484 864928

Email: info@fnwairdiffusion.co.uk

FNW Engineering Developments Ltd - Tel: 01484 861 233 - Fax: 01484 864 928 - info@fnwairdiffusion.co.uk Copyright © FNW Engineering Developments Ltd



Stainless Steel Ventilation

At FNW air diffusion our stainless steel ventilation louvres, stainless steel ventilation grilles, stainless steel linear grilles, stainless steel fixed blade grilles and stainless steel perforated air return grilles combine strength of stainless steel with a hygienic surface giving our stainless steel ventilation louvres, ventilation grilles, linear grilles, fixed blade grilles and perforated air return grilles an advantage over other materials. Our stainless steel louvres and grilles are corrosion resistant, can be easily cleaned to a hygienic standard and are therefore ideal for the pharmaceutical and food preparation and manufacturing industries. All our stainless steel air diffusion products including louvres, ventilation grilles, linear grilles, fixed blade grilles and perforated air return grilles are available in two grades, 304DP stainless steel and 316DP marine grade stainless steel.