Colinwell Masonry

Colinwell Masonry Manufacturers of Allan Block Retaining Wall System, Architectural & Acoustic Masonry and Martello Stone Walling

Over 100 years ago, John McQuillan began quarrying limestone at Colinwell, so named because of the large natural spring well which rises at the site on the slopes of Colin Mountain near Belfast. Since then our Company, which is now owned and managed by Phelim and Donal McQuillan, has progressed from being a quarrying and aggregate processing company to a walling product manufacturer. Today, Colinw

ell Architectural Masonry, Martello Stone Walling, Allan Block Retaining Wall Systems and Acoustic Masonry Blocks can be seen in use throughout Ireland and Great Britain. Opening Hours: -

Monday 8am – 6pm
Tuesday 8am – 6pm
Wednesday 8am – 6pm
Thursday 8am – 6pm
Friday 8am – 6pm

Welcome Mitch to the Colinwell team!Mitch has joined our GB Sales Team and will be supporting housebuilders, contractors...
19/08/2026

Welcome Mitch to the Colinwell team!

Mitch has joined our GB Sales Team and will be supporting housebuilders, contractors and architects with their upcoming projects.

With a strong background in masonry and the construction sector, Mitch brings valuable industry experience to the team and is looking forward to connecting with new and existing customers across Great Britain.

If you have a project ongoing or coming up, give Mitch a shout - he will be happy to help.

📞 07725 549690
📧 [email protected]

For more information on Colinwell and our product range, visit www.colinwell.com.

Our new article on how to specify architectural masonry blocks is now live!For architects and contractors, the most reli...
14/08/2026

Our new article on how to specify architectural masonry blocks is now live!

For architects and contractors, the most reliable specification is performance led and project specific. The specification needs to define the design requirements, record the required technical information and coordinate the masonry with the rest of the building project, before units even arrive on site.

This article focuses on
- What to consider when choosing masonry blocks
- Where to begin in the process
- Variations of architectural masonry blocks
- Architectural masonry specification checklist

Read the full article before specifying architectural masonry - https://colinwell.com/resources/insights/how-to-specify-architectural-masonry-blocks

Learn how to specify architectural masonry blocks comparing finishes, technical evidence, detailing & installation requirements for UK and Irish projects.

04/08/2026

Project Spotlight: Private Home Garden Pond with Allan Block retaining wall

Allan block in Pewter was used in the installation of this private home garden pond in England by Shade Water Gardens

The project incorporated approximately 80 tonnes of granite to form dramatic waterfalls and naturalistic rock features, creating movement, sound, and a strong connection to nature.

Allan Block was selected because its hollow-core design makes it highly adaptable and easy to scribe around natural stone. This flexibility enabled the team to create retaining walls that seamlessly integrated with the granite rock formations while maintaining clean, contemporary edging around the water feature.

Read the full case study - https://colinwell.com/projects/private-home-garden-pond

We're delighted to see the RTU Group featured in the latest edition of Construction & Civil Engineering magazine.In the ...
30/07/2026

We're delighted to see the RTU Group featured in the latest edition of Construction & Civil Engineering magazine.

In the interview, our Managing Director, Alan Sproule, shares the Group's ambitious growth journey, the impact of strategic acquisitions, and RTU's continued commitment to delivering exceptional customer service across its businesses.

Read the full article here: https://magazine.ccemagazine.com/construction-civil-engineering-issue-228-july-2026/0121452001785255055/p192

Joomag digital interactive publication

23/07/2026

We're Hiring: Forklift driver / Yard Operative

Join the team at Colinwell!
We're looking for a reliable, safety-focused forklift driver / yard operative to support our busy manufacturing operation.

✅ Full-time, permanent role
✅ Competitive pay & benefits
✅ Great team environment

Apply here: https://colinwell.com/careers/fork-lift-driver-job-advert

☀️JULY HOLIDAY CLOSURE ☀️ Colinwell (Northern Ireland office) will close on Friday 10th July and will reopen Wednesday 1...
06/07/2026

☀️JULY HOLIDAY CLOSURE ☀️

Colinwell (Northern Ireland office) will close on Friday 10th July and will reopen Wednesday 15th July.

📞 For any inquiries outside of NI, contact 0113 350 0880

We hope you have a nice break.

Choosing the right masonry finish can make a significant difference to both the appearance and performance of your proje...
03/07/2026

Choosing the right masonry finish can make a significant difference to both the appearance and performance of your project.

Our latest blog explores the key differences between Smooth, Paint Grade, and Textured blockwork, helping you understand where each finish works best and what to consider when specifying them.

Key takeaways:
• The characteristics and applications of each finish
• How finish selection impacts aesthetics and maintenance
• Practical guidance for choosing the right solution for your project

Read the full article here:

Explore commercial masonry finishes: smooth, paint grade and textured blockwork. Learn how finishes influence appearance, durability & specification…

Whether you're shaping flowing radius walls or incorporating sharp, structural corners, Allan Block makes it easy to ach...
30/06/2026

Whether you're shaping flowing radius walls or incorporating sharp, structural corners, Allan Block makes it easy to achieve creative designs without compromising on strength or performance.

See these projects for inspiration, and learn more here:

Creating Smooth Curves and Radius Walls with Allan Block Retaining Wall Systems
https://colinwell.com/resources/insights/creating-smooth-curves-and-radius-walls-with-allan-block-retaining-walls-systems-a-step-by-step-guide

How to Build Strong and Accurate Retaining Wall Corners with Allan Block Retaining Wall Systems
https://colinwell.com/resources/insights/how-to-build-strong-and-accurate-retaining-wall-corners-with-allan-block-retaining-wall-systems

Why is Colinwell's Architectural Masonry the material of choice for high-performance buildings?Our latest blog explores ...
25/06/2026

Why is Colinwell's Architectural Masonry the material of choice for high-performance buildings?

Our latest blog explores how our Architectural Masonry delivers more than just visual appeal, offering key benefits including:

✔ Suitable for all sectors
✔ Exceptional fire resistance
✔ Sustainable, long-lasting construction

Discover why architects continue to specify masonry for projects that demand both performance and aesthetics.

Read more: https://colinwell.com/resources/insights/why-architectural-masonry-is-specified-for-high-performance-buildings

Learn about architectural masonry in a variety of sectors and why it is chosen for high performance buildings throughout UK and Ireland.

Address

37 Colinglen Road
Belfast
BT170LP

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 6pm
Thursday 8am - 6pm
Friday 8am - 6pm

Telephone

+442890618145

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