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Smoke Vents

Welcome to The National Domelight Company's specialised Automatic Opening Vent website.

Welcome to the specialist site for automatic opening vents and smoke vents from The National Domelight Company. We are experienced suppliers of AOVs and smoke vents with many years of industry knowledge. We will be able to find the right products to match your specifications, whatever your project might require. We sell to individuals and end users as well as industry professionals like commercial/ residential property developers, roofing contractors and building contractors. As smoke vent, AOV and rooflight specialists, we offer a unique range of branded products that can meet all requirements. Whether youíre working to a tight budget or need a fully bespoke smoke ventilation system, we will be able to help. Choose from polycarbonate, glass or insulated aluminium units depending on building regulations. There are a number of additional features to complement your system like control panels, firemanís switches, battery back-up and smoke detectors. We have large warehouses and keep many standard products in stock, cutting lead times right down. All products are eligible for free nationwide delivery, so your order will arrive with you quickly at no extra cost. We always put our customers first and promise to provide you with the highest levels of customer service. Send us your requirements and let us help you find exactly what you need from our extensive range of smoke ventilation and fire safety products. You can place your order with our knowledgeable team quickly and easily. If you need high quality smoke vents and automatic opening vents that offer excellent value for money, youíve come to the right place. Take a look through our wide range of products to find what you need, or speak to our staff for expert assistance. You can contact us on 01276 451555 or send us an email to We look forward to assisting you with your next project.

Click on a product below for more information, or if you would like assistance at any time please don't hesitate to call us on
01276 451555 or you e-mail us at

Double Pitch AOV
140° Opening AOV
90° Hinged AOV
Louvred AOV

The information within this website is to be used as a guide only and is subject to change without prior notice. Whilst we endeavour to keep the information up-to-date and correct, we make no representations or warranties of any kind about the accuracy or suitability of the information provided. If you would like assistance at any time, please don't hesitate to call us on 01276 451555 or you may e-mail us at To see the full range of rooflights available including the smoke vents listed on this website, please visit our main rooflight website at