Duct-In Ltd

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Duct-In Ltd We are a manufacturer & distributor of HVAC accessories & ancillaries. Our products include, plenums, grille boxes, drip trays & other Air Con fabrications

Look at these fabricated bad boys! 🔥200mm circular ducting transitioning into a custom square section to navigate around...
06/10/2026

Look at these fabricated bad boys! 🔥

200mm circular ducting transitioning into a custom square section to navigate around a joist while maintaining the required airflow then back into a circular duct on the other side, making installation easier. 🤝 🫡

They'll be with you within the next 2 hours! Steels aren't a problem, we go around them.😎Big shout out to Toby and the ...
18/09/2026

They'll be with you within the next 2 hours! Steels aren't a problem, we go around them.😎

Big shout out to Toby and the Team for keeping us busy on this project! 📐👊

Tapered to perfection! 👌When the unit opening is smaller than the required spigot, a tapered plenum is the perfect solut...
24/08/2026

Tapered to perfection! 👌

When the unit opening is smaller than the required spigot, a tapered plenum is the perfect solution.

Here, we’ve taken a 153mm unit opening and tapered it out to suit a 200mm spigot.

Simple, neat and made to fit. This is our bread and butter! 👌

📐 Made to measure
🔧 Manufactured in-house
💨 Built to fit

These oval spigots are designed to achieve the equivalent of a 200mm diameter circular connection while keeping the over...
21/08/2026

These oval spigots are designed to achieve the equivalent of a 200mm diameter circular connection while keeping the overall height of the Grille Box to a minimum. 📐

A quick quality check with 200mm flex confirms a nice fit before it heads out the door. ✅

No drama onsite just a clean install! 🔧

Linear Bar Grilles + Side Entry Grille Boxes 👌Perfect when you’re working within a tight ceiling void and just don’t hav...
20/08/2026

Linear Bar Grilles + Side Entry Grille Boxes 👌

Perfect when you’re working within a tight ceiling void and just don’t have the space for a traditional top-entry connection.

These Grille Boxes were manufactured to suit the Linear Bar Grilles, giving you a neat, practical solution without compromising on the finished look.

Finished as standard in RAL 9010 White — timeless, clean and ready to blend seamlessly into any space. 🤍

📐 Bespoke sizes available
🔧 Made to suit your installation
🇬🇧 Manufactured in-house

Plasterline Linear Bar Grilles 👌Designed to sit flush within the ceiling for a clean, seamless finish — no bulky frames ...
19/08/2026

Plasterline Linear Bar Grilles 👌

Designed to sit flush within the ceiling for a clean, seamless finish — no bulky frames or visible borders, just crisp lines and a properly integrated look.

Perfect for those projects where the finishing details make all the difference. ✨

😂 Glory Hole Central here at DUCT-IN today!Before anyone gets too excited… they’re just plenums. 👀
19/08/2026

😂 Glory Hole Central here at DUCT-IN today!

Before anyone gets too excited… they’re just plenums. 👀

Another sketch ➡️ finished product! ✏️🔧Our installer was fitting a new kitchen canopy and extract ductwork and needed a ...
14/08/2026

Another sketch ➡️ finished product! ✏️🔧

Our installer was fitting a new kitchen canopy and extract ductwork and needed a bespoke grease tray to complete the job.

📏 A few measurements sent over to us
✏️ We quickly turned them into a sketch for approval
🔨 Manufactured in-house
🚚 Finished and out the door today, ready to complete the installation on Monday!

Another bespoke job turned around by DUCT-IN LTD. ❄️🔥

Fabricated Supply Plenums to suit a Daikin FXSA20A, complete with 3 No. 150mm spigots. 🔧Not a model we come across too o...
12/08/2026

Fabricated Supply Plenums to suit a Daikin FXSA20A, complete with 3 No. 150mm spigots. 🔧

Not a model we come across too often… and the dimensional data certainly took some finding! 🔍

✅ We size your grilles to suit your indoor unit.✅ We source and supply your grilles.✅ We manufacture your bespoke grille...
11/08/2026

✅ We size your grilles to suit your indoor unit.

✅ We source and supply your grilles.

✅ We manufacture your bespoke grille boxes to fit your grilles.

✅ We quality-check every component before it leaves our workshop.

Here's a recent job for one of our regulars, he choose the timeless Linear Slotted RAL 9010 Grilles, sat snug in our fabricated Grille boxes ready to be dispatched. It doesn't get much cleaner than this! 🔥

Address

71 London Road
Newark
NG241RZ

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 3pm

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