Castleforms Ltd

Directions Website Contact the business

Castleforms Ltd Castleforms is a privately owned company that operates out of a newly commissioned manufacturing facility (2016) centrally located in the town of Portlaoise.

Castleforms is a manufacturer of high quality Expanded Polystyrene (EPS) insulated products and systems that are used in the new build and retrofit construction sector.
* ICF Therm Wall System
* Raft Therm Foundation System
* Soltherm Render
* EWI Castleforms is a manufacturer of high quality Expanded Polystyrene (EPS) insulated products and systems that are used in the new build and retrofit construction sector. By utilizing modern manufacturing equipment and production methods, Castleforms is focused on developing creative solutions. We continue to expand and develop new products to cater for increasing markets and strive to deliver products of exceptional quality along with an excellent customer service.

27/10/2026

✨ Last Sunday, DIY SOS Ireland featured the Harte family from Walsh Island, County Offaly, highlighting the power of community, compassion and coming together to make a real difference.

For families navigating autism and additional needs, understanding, support and a safe home environment mean so much.

At CastleForms, we're incredibly proud to have supplied our Raft Therm insulated foundation system for this very special project. Huge well done and sincere thanks to .m.costello_construction and his team, all the volunteers, tradespeople, companies and individuals who gave their time, skills and generosity to make it happen.

To the Harte family, we wish you all the very best in your new home and this exciting new chapter.

Missed the episode? Catch DIY SOS Ireland on the RTÉ Player.

, , , ."

21/10/2026

🏗️ BUILT FOR STRENGTH. ENGINEERED FOR PERFORMANCE.

Take a closer look at this impressive residential project in Dunree, Donegal, featuring CastleForms’ 410mm ICF Therm system. 🇮🇪

With a 200mm reinforced concrete core and a passive-standard U-value of 0.15 W/m²K, the 410mm system delivers outstanding thermal performance alongside the structural depth required for demanding applications, including basement retaining walls.

From the carefully detailed steel reinforcement to the precision of the installation, this is a fantastic example of ICF construction in action. 👏

A huge well done to P McDaid ICF Structures for the quality of workmanship on site, particularly the steel tying and reinforcement detailing.

👷 Structural Design: MFA Consulting Engineers
🏡 Architects: MG Architects

At CastleForms, we're proud to support projects that combine structural performance, energy efficiency and quality construction.

📩 Planning your next self-build or construction project? Get in touch with our team to find out how CastleForms ICF Therm can work for you.

🌐 www.castleforms.com

Donegal SelfBuildIreland IrishConstruction BasementConstruction RetainingWalls EnergyEfficientHomes PassiveHouse ConcreteConstruction BuildingIreland ConstructionExcellence ModernMethodsOfConstruction MMC

20/10/2026

📍 PROJECT SPOTLIGHT | CO. MEATH
Big walls. Serious structure. Smart building. 💪
This private self-build in Meath is taking shape, with substantial retaining walls and a basement-level structure showcasing the versatility of our CastleForms ICF Therm 335 system.
And it’s not just about strength. It’s about building for the future. 👇

✅ U-value of just 0.17 W/m²K with the grey ICF Therm 335/150 block
✅ Robust reinforced concrete construction
✅ Continuous insulation for excellent thermal performance
✅ Ideal for demanding above-ground and below-ground wall applications
From complex retaining wall details to high-performance residential construction, ICF Therm gives self-builders the opportunity to combine structural strength with energy efficiency in one integrated wall system.
This is modern construction in action. 🚀

🏡 Planning your own self-build? Working on a project that demands performance from the ground up?
📩 Get in touch with CastleForms to find out how ICF Therm can work for your next project.
🌐 www.castleforms.com

18/10/2026

❤️ DIY SOS Bray

We were honoured to supply our insulated raft foundation to help adapt Hannah’s home. It’s been inspiring to see so many tradespeople, volunteers, companies and individuals come together, giving their time, skills and support for such a worthy project. Well done to everyone involved in bringing it all together! ❤️

Wishing Hannah and her family all the very best. 🏡

📺 Tune in this Sunday at 6.30pm on RTÉ One, or catch the episode on RTÉ Player.

16/10/2026

🚀 CASTLEFORMS ICF FIREBLOCK – ROLLED OUT NATIONWIDE! 🇮🇪

Our award-winning ICF Fireblock is making its mark on construction sites across Ireland! 🏗️
Designed for use with our CastleForms ICF Therm system, ICF Fireblock offers an innovative alternative to traditional metal fire strips.

✅ NSAI & Kiwa Certified
With NSAI certification for the Republic of Ireland and Kiwa certification for the UK, CastleForms ICF Fireblock is supporting projects across both markets.

📍 Active Sites Across Ireland: 🔹 Freshford, Kilkenny
🔹 Bloodmill Road, Limerick
🔹 Ballylinan, Laois
🔹 Westport, Mayo
🔹 Cashel, Tipperary
🔹 Carrigtwohill, Cork

From award-winning innovation to real-world application, CastleForms ICF Fireblock is now being used on sites across the country!
Want to find out more?
📩 Contact the CastleForms team today or visit www.castleforms.com⁠

ModernMethodsOfConstruction MMC

🔥 CASTLEFORMS | CONSTRUCTION WATCH 2026 🔥We’re all set up and ready to go for Construction Watch 2026 in Cork! 🇮🇪Today, ...
08/10/2026

🔥 CASTLEFORMS | CONSTRUCTION WATCH 2026 🔥
We’re all set up and ready to go for Construction Watch 2026 in Cork! 🇮🇪
Today, we’re putting the spotlight firmly on our award-winning ICF FireBlock 🏆🔥 — an innovative solution designed to enhance fire safety within ICF construction.
🏆 Award-winning innovation
🔥 Designed to enhance fire safety within the ICF system
🏗️ Developed specifically for CastleForms ICF Therm
⚡ A smarter alternative to traditional metal strip fire breaks
🇮🇪 Already being rolled out nationwide
If you’re at Construction Watch Cork today, make sure to stop by, meet the CastleForms team and see ICF FireBlock up close.
🔥 Fire safety. Innovation. Built into the system.
CastleForms — High Performance. From the Ground Up.

05/10/2026
02/10/2026

🏗️ Supporting ICF Training & Skills Development
CastleForms was delighted to support Training Campus with its Insulated Concrete Form (ICF) training course.

One of our team members recently attended this fully funded, 5-day onsite course, gaining valuable hands-on experience and further knowledge in ICF installation, construction details, airtightness, U-values and the practical application of ICF systems.

It’s fantastic to see dedicated training available to help develop practical skills and knowledge in modern, energy-efficient construction methods.
A great opportunity for anyone looking to upskill in ICF construction. 👏

CastleForms – Building Better, Together.

29/09/2026

🏗️ PROGRESS AT HORKANS HILL, WESTPORT, CO. MAYO

Another great example of CastleForms ICF Therm in action! 🔥

Progress is moving along well at this residential development, where our 335mm ICF block is being used for the external walls, achieving an impressive U-value of just 0.17 W/m²K.

The project is also incorporating our ICF Fireblock system at intermediate floor level, providing an integrated approach to high-performance ICF construction.

👏 Well done to Jonathan Sweeney Carpentry & Construction for the efficient installation and excellent attention to detail.

A great project showcasing the performance, versatility and efficiency of the CastleForms ICF system.

📍 Horkans Hill, Westport, Co. Mayo

28/09/2026

The Birr Primary Care Centre is a substantial three-storey project, showcasing the versatility of our ICF Therm 360 system on a larger scale build.

For this project, ICF Therm 360 features a 200mm concrete core, achieving a U-value of 0.19, delivering a robust structural system and high levels of thermal performance.

Projects like this demonstrate what’s possible with ICF construction, especially on a multi-storey scale.

CastleForms — Building Better with ICF.

Address

Port Laoighise

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Alerts

Be the first to know and let us send you an email when Castleforms Ltd posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Castleforms Ltd:

Shortcuts

Share

Nearby hardware services