CMB Engineering

One of the UK's largest Independent Building Services Contractors, operating with an innovative no-grief contracting approach.

[Steve Borley @SteveCMB]

This is what @CMBEngineering is all about, creating opportunities.

[Cardiff Council @cardiffcouncil]

Our Onsite Construction Academy is helping people get site-ready with free training, experience & qualifications.
Working with partners like BESL, learners don’t just train -they get the chance to gain hands-on experience & employment opportunities on live sites.
@CMBEngineering

[CMB Engineering @CMBEngineering]

Read our full handover case study on the project here 👇

https://t.co/szQKghnK72

[CMB Engineering @CMBEngineering]

In September 2023, CMB started work on the M&E contract for HiVE – a new multi-million-pound High Value Engineering educational facility being undertaken by ISG in Ebbw Vale.

However, with news of ISG’s administration in September 2024, followed by several months of uncertainty surrounding the future of the project, CMB stepped in as Principal Contractor to see through the project to the end. This ensured the continuation of the contracts for 173 staff, 39 subcontractors, as well as additional funders and stakeholders, all involved across the scope of the project.

We are delighted to now see this educational facility fully operational and inspiring the next generation of STEM talent. Watch the video below for a first look at the inside of the handed over facility 👇

@BlaenauGwentCBC | @coleggwent

[CMB Engineering @CMBEngineering]

We are delighted to announce that following a record-breaking year, we have once again been listed in Wales Business Insiders Top 300 Companies.

As an independently owned building services company, we are pleased to not only feature in this list but also to have achieved year on year growth within the list. From our 2024 listing at position #173, to 2025’s position #121, we are very proud to have been listed at position #61 in this year’s list.

Steve Borley, CMB Managing Director & Founder, commented:

“We are proud to see the business continue to grow, as we have become the contractor of choice. This was no more evident with the projects secured during this period including KLA, John Street Offices, Cardiff Arena and Fairwater Community Campus.

The latter project in Fairwater was hugely impacted following the administration of Tier 1 contractor ISG Construction in September 2025 – a moment that sent shockwaves through the industry. Despite this challenge, we turned adversity into achievement by stepping in as Principal Contractor under our BESL brand, thanks in no small part to the brave decisions made by @cardiffcouncil and the support of our predominantly local supply chain.

This outcome reflects the company’s “Can‑Do” philosophy and showcases the depth of expertise within our management team.”

@insiderwales | @BusinessInsider

[CMB Engineering @CMBEngineering]

10 CMB employees recently took on the Carten100 charity cycle from Cardiff to Tenby, raising over £1,500 in support of Latch Welsh Children's Cancer Charity.

A huge thank you to all our team (and supply chain) who took part - an incredible effort for an incredible cause👏

You can read more below 👇

https://t.co/rw0tc4qdno

[CMB Engineering @CMBEngineering]

A pleasure to have attended @cardiffcityfc recent Player’s Sponsors Evening.

CMB’s partnership with Cardiff City goes back more than 25 years now, and we are proud to continue our support for this fantastic club.

Pictured below are our sponsored-players, @CianAshford and @_wfish alongside CMB Director Rob Borley and CMB Renewables Manager, Tom Borley.

[CMB Engineering @CMBEngineering]

Congratulations to Marc Baldwin of V&C Ventilation, who is currently working as a valued supply chain partner for CMB on the Weston Airfield project, and has been presented with the @WillmottDixon Quality Award for May 👏

Marc’s effort, professionalism, and attention to detail were recognised during a recent quality visit, where he achieved 100% marks in both installation and record keeping. In the words of the NQA assessor: “It was the best I’ve ever seen for fire dampers Willmott Dixon-wide.”

Craig Baker, CMB Bristol Managing Director, commented:

“We are very proud to work with only the best of supply chain partners ensuring the highest standard and quality of install. V&C Ventilation are a long-standing supply chain partner of ours, and with the industry spotlight focused now more than ever on the quality of installation, feedback like this is so rewarding.

Their commitment, involvement, and professionalism have stood out every step of the way throughout this project. My thanks to Marc and all at V&C for their continued support. It is really appreciated.”

[CMB Engineering @CMBEngineering]

A fantastic morning supporting our friends at Llanrumney Hall Community Trust for a successful business networking event.

We helped raise valuable funds for local charities alongside the Lord Mayor and Lady Mayoress of Cardiff.

Read more below:
https://t.co/BTjUpcoJvq

[CMB Engineering @CMBEngineering]

11 riders. 100 miles. One incredible cause! 🚴‍♀️

On May 9th, a team of 11 CMB employees and supply chain partners will take on the CARTEN100, cycling 100 miles from Cardiff to Tenby to raise money for Latch – a fantastic charity supporting children affected by cancer and their families.

We’ve set a target of £3,000 and we need your help to get there! So, if you’d like to help us reach this target and support the team’s fundraising efforts, you can do so and learn more about the event via the link below.

Please spread the word and help us make a difference! 👇

https://t.co/O6KQuNgovW

[CMB Engineering @CMBEngineering]

We are delighted to have received a second consecutive full marks on our latest Considerate Constructors Scheme (CCS) Monitors Report on the Fairwater Community Campus project.

BESL/CMB scored 45/45 in the 3 areas we were marked on: respect for the community; care for the environment; and value of our workforce. Another amazing achievement and a huge credit to all our staff and subcontractors.

The report highlighted:

“This project continues the excellent standards which were observed during the initial visit last year. The level of engagement within the community remained extensive, the facilities in place remained excellent and the level of engagement with the workforce has remained positive. This site exudes a very detailed knowledge of the construction industry and the impact from the perception on site is excellent.”

Thank you to all our team and supply chain who continue to make this project a success!

@cardiffcouncil

[CMB Engineering @CMBEngineering]

We were pleased to welcome Generation 4 Change (G4C) to Fairwater Community Campus last week for a guided visit of Cantonian High School and Riverbank and Woodlands schools.

G4C, part of Constructing Excellence, brings together young professionals from across the UK construction sector, creating a platform for young people to connect, collaborate, and shape the future of the industry. Their visit provided an opportunity to showcase the ongoing progress across the site, while creating space for those at the early stages of their careers to connect, exchange ideas, and gain insight into an active construction project.

We would like to thank all attendees for their time and contribution to a productive and insightful visit and look forward to sharing the latest video update on the project in the coming weeks.

@cardiffcouncil

[CMB Engineering @CMBEngineering]

We are currently recruiting for a Junior CAD Technician to join our team at CMB's Cardiff office.

This is a great opportunity to be part of an established BIM team, playing a key role in the delivery of our projects.

If you’re motivated and looking to grow within the Building Services industry, we’d love to hear from you. Read the full job spec and apply now via the link below 👇

https://t.co/QlEfUYH1jp

[CMB Engineering @CMBEngineering]

Always a pleasure to support our friends at @LlanrumneyHall !

[Llanrumney Hall @LlanrumneyHall]

A huge thank you to our ongoing amazing supporters from @blueselfstorage and @CMBEngineering. They have once again helped make Easter that little bit more special this year with their generous donation of Easter eggs, which were distributed to children in the area🐣🍫

Both of these companies have supported us for many years now and continue to play a big part in community occasions like this, which mean a lot to our little charity and the Llanrumney community!

A big thank you to both for their support 🙌

[CMB Engineering @CMBEngineering]

We are pleased to have handed over Ysgol Gymraeg Tredegar, following 10 months carrying out the Mechanical contract for @BlaenauGwentCBC.

You can see the full gallery of images on our website now via the ink below.

➡️ https://t.co/tZhIa5qJFk

[CMB Engineering @CMBEngineering]

After exactly 19 years to the day of outstanding service, we say a heartfelt thank you and farewell to Matt Clarke, who is retiring from CMB today as Regional Managing Director.

CMB Founder and Group Managing Director, Steve Borley, shared:

“I first met Matt over 40 years ago when we both worked for national contractors and hit it off immediately with similar views on how the industry should be shaped. We kept in touch over the years and I thought he was the perfect fit for us which proved right when he joined us 19 years ago.

His energy and personality has had a lasting contribution to the growth of the business on the other side of the Severn Bridge and Matt has played a major part in the Story that is CMB Engineering.

We are very grateful to Matt for his contribution to the growth and legacy of the CMB business, and we wish him well in his well-earned retirement.”

[CMB Engineering @CMBEngineering]

We’re pleased to bring you the latest update on Riverbank and Woodlands schools – the next phase of the Fairwater Community Campus project, where we are delivering two Additional Learning Needs schools for @CardiffWestern on behalf of @cardiffcouncil.

Click below to read the full update and see more images on the progress.

https://t.co/JRu2JyPVxh

[CMB Engineering @CMBEngineering]

Cardiff’s City Hall is one of Wales’s most prestigious civic landmarks and is now undergoing a comprehensive M&E upgrade to modernise its infrastructure, which CMB are proud to be delivering.

The M&E upgrade for @cardiffcouncil includes the installation of new mechanical plant, electrical distribution systems, containment and controls, high and low-voltage cabling, installing a new substation, and the integration of modern building management technology.

Read our update in full via the link below 👇

https://t.co/TPWitGHaaf

[CMB Engineering @CMBEngineering]

11 riders. 100 miles. One incredible cause! 🚴‍♀️

On May 9th, a team of 11 CMB employees and supply chain partners will take on the CARTEN100, cycling 100 miles from Cardiff to Tenby to raise money for Latch – a fantastic charity supporting children affected by cancer and their families.

We’ve set a target of £3,000 and we need your help to get there! So, if you’d like to help us reach this target and support the team’s fundraising efforts, you can do so and learn more about the event via the link below.

Please spread the word and help us make a difference! 👇

https://t.co/O6KQuNgovW