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RTU Ltd Supplier of ready-mixed building products throughout N. Ireland. Supplying domestic & commercial projects Ultraflo® is our unique hemihydrate liquid floor screed.

RTU supplies a range of ready mixed Concrete, Mortar, Plaster and Floor Screeds throughout Northern Ireland. The most recent addition to our product range is Exposa® Decorative Concrete, which is an aesthetically pleasing alternative to traditional asphalt, paving, tarmac or gravel and can be used for residential driveways, public parks, urban landscapes and promenades. It is non-cement based and is therefore not subject to shrinkage cracking and curling. Ultraflo® offers significantly improved heat responsiveness when installed with underfloor heating systemsm it is virtually self-levelling, with the additional benefits of increased strength and reduced drying times. All RTU Ltd products are ready mixed, suitable for both private dwellings and larger commercial projects. View our galleries and see how RTU can help your construction project!

Visit RTU at the Self Build Extend and Renovate UK Show in Belfast!Discover our Plaster – ready-to-use, reliable, and re...
31/10/2026

Visit RTU at the Self Build Extend and Renovate UK Show in Belfast!

Discover our Plaster – ready-to-use, reliable, and reducing waste on site.

Why choose RTU Plaster:
✅ Supplied ready to use - no need for on-site mixing equipment or storage facilities
✅ Suitable for internal and external render
✅ Saving on time and labour costs
✅ Option for delivery or collection

🎟️ Grab your FREE tickets here: https://live.selfbuild.ie/ulster/

1 WEEK TO GO! Come visit us at the Self Build Extend and Renovate UK Show in Belfast.Discover how RTU can support your s...
31/10/2026

1 WEEK TO GO!

Come visit us at the Self Build Extend and Renovate UK Show in Belfast.

Discover how RTU can support your self build projects no matter the stage, from building foundations to choosing your driveways.

🎟️ Grab your FREE tickets here: https://live.selfbuild.ie/ulster/

Visit RTU at the Self Build Extend and Renovate UK Show in Belfast.Discover our Screed, with a variety of options includ...
30/10/2026

Visit RTU at the Self Build Extend and Renovate UK Show in Belfast.

Discover our Screed, with a variety of options including sand/cement, fibre, polymer modified and quick drying.

Why choose RTU Screed:
✅ Supplied ready to use - no need for on-site mixing equipment or storage facilities
✅ Saving on time and labour costs
✅ Available for all types of projects

🎟️ Grab your FREE tickets here: https://live.selfbuild.ie/ulster/

We’re heading to Selfbuild Extend & Renovate Live Belfast 2026!Planning your dream home? Our Ready-Mixed Concrete gives ...
29/10/2026

We’re heading to Selfbuild Extend & Renovate Live Belfast 2026!

Planning your dream home? Our Ready-Mixed Concrete gives you the strength and reliability your build deserves.

Why choose RTU Concrete:
✅ Consistent, high-quality mix every time
✅ Quick, reliable delivery & collection available
✅ No project too big or small

🎟️ Get your FREE tickets: https://live.selfbuild.ie/ulster/

Visit RTU at the Selfbuild Extend & Renovate Live Show in Belfast!Discover our Mortar & Coloured Mortar - ready-to-use, ...
27/10/2026

Visit RTU at the Selfbuild Extend & Renovate Live Show in Belfast!
Discover our Mortar & Coloured Mortar - ready-to-use, reliable, and reducing waste on site.

Why choose RTU Mortar:
✅ Supplied ready to use - no mixing, no mess
✅ Consistent strength and finish every time
✅ Available with 8 or 36-hour retarder for flexible site use
✅ Choose from over 50 colours to complement your brickwork
✅ Locally produced and delivered straight to site

Whether you’re laying the first brick of your dream home or completing your next small build, RTU Mortar makes it easier to get a perfect, professional finish.

🎟️ Grab your FREE tickets here: https://live.selfbuild.ie/ulster/

Self-builders, visit RTU at the Selfbuild Extend & Renovate Live Event in Belfast!Discover Ultrabead® – the lightweight ...
22/10/2026

Self-builders, visit RTU at the Selfbuild Extend & Renovate Live Event in Belfast!

Discover Ultrabead® – the lightweight thermal screed that makes insulating your floors easier than ever.

✅One simple layer – no need for boards or multiple products
✅Encapsulates services – no cold spots or thermal bridges
✅Lightweight & acoustic – keeps your home quieter
✅Quick to install – pumped and poured on-site, saving time and labour

Make your self-build warmer and quieter with Ultrabead®!

🎟️ Get your FREE tickets now! https://live.selfbuild.ie/ulster/

Planning your dream home?Visit RTU at the Self Build Show and discover why Ultraflo® is the perfect partner for underflo...
16/10/2026

Planning your dream home?

Visit RTU at the Self Build Show and discover why Ultraflo® is the perfect partner for underfloor heating.

Ultraflo® is our unique hemihydrate liquid floor screed. Designed for performance, it offers:
✅ Faster heat response & reduced energy costs
✅ No surface laitance - no grinding or buffing required
✅ Complete supply and installation service

🎟️ Get your FREE tickets now: https://live.selfbuild.ie/ulster/

Find out more about Ultraflo® here: https://www.rtu.co.uk/products/ultraflo

We’re exhibiting at Selfbuild Extend & Renovate Live Belfast and bringing our award-winning eXposa® Decorative Concrete ...
14/10/2026

We’re exhibiting at Selfbuild Extend & Renovate Live Belfast and bringing our award-winning eXposa® Decorative Concrete with us!

Perfect for patios, pathways, driveways, and steps, eXposa® combines the natural beauty of exposed aggregate with the strength, durability, and slip resistance of concrete.
Why choose eXposa®?

✅ Natural aggregate finish with long-lasting durability
✅ Slip resistant and low maintenance
✅ Inhibits the growth of weeds and moss
✅ Available in a wide range of colours
🎟️ Grab your FREE tickets here: https://live.selfbuild.ie/ulster/

Building your own home or working on a new project? Visit RTU at the Selfbuild Extend & Renovate Live Event in Belfast! ...
12/10/2026

Building your own home or working on a new project? Visit RTU at the Selfbuild Extend & Renovate Live Event in Belfast! 🏡

Check out Zircon® our polished concrete floor that’s as tough as it is beautiful. Designed for modern homes, it gives you a smooth, seamless finish that’s easy to maintain.

Why builders love Zircon®:

✅ Stylish, seamless finish – perfect for contemporary spaces

✅ Low maintenance – just vacuum and mop

✅ Super durable – stands up to everyday life and heavy use

✅ Works brilliantly with underfloor heating

✅ Helps keep your home comfortable all year round with great thermal performance

Whether you’re building your own home or working on your next residential project, Zircon® delivers strength, style, and simplicity in one solid finish.

🎟️ Grab your FREE tickets here: : https://live.selfbuild.ie/ulster/

We’re back! RTU will once again be exhibiting at the Selfbuild Extend & Renovate Live Ulster Show on 7th & 8th November ...
08/10/2026

We’re back! RTU will once again be exhibiting at the Selfbuild Extend & Renovate Live Ulster Show on 7th & 8th November 2026.

📍 Find us at Stand C18 where we’ll be showcasing our core range: ready-mix concrete, plaster, mortar, screed – alongside our signature products: eXposa® decorative concrete, Zircon® polished concrete and flooring solutions Ultrabead®, Ultracem and Ultraflo®.

Whether you’re building, extending, or renovating, our team will be on hand to guide you through the right solution for your project.

Save the date and come chat with us at the show!

Get your free tickets here: https://selfbuild.ie/events/ulster/

Address

Cloughfern Avenue
Belfast
BT370UZ

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 7:30am - 12pm

Telephone

+442890851441

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