Steel Mac

Your One Stop Steel Shop!!

Willets Lane, Denham, Uxbridge, UB9 4HE Directions

Tel 020 8848 8479
   Now closed Open Friday 07:00 - 17:30

Why Choose Us?

We Are Specialists
First Class Service
Affordable Prices

Business overview

Structural Steel Fabricator, Builders Beams, Approved Steel installations, Onsite Welding Services 247. " A Leader in the Metal Fabrication Industry"

Steel – Mac Engineering Ltd

Our “Mission Statement” clearly defines our company’s commitment to customer satisfaction and advancement on every level.

“A leader within the metal fabricating industry, we will develop strong and trusting relationships with our client’s and suppliers based on a consistently high level of service, quality and value.

Well diversified in the areas of design, engineering and manufacturing, we will adapt to effectively meet our client’s needs through ongoing advances in technology and automation.

Committed to our employees, we will strive to provide them with a challenging and fulfilling work environment, where opportunities for advancement and educational incentives promote and encourage customer focus, profit awareness and personal growth.”

Our entire team’s aim is to effectively meet all of your metal fabricating requirements, now, and in the years to come.


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Pre-drilled pilling beams
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Products & Services

metal fabricators

metal staircases

rolled steel joists

stainless steel fabrications

stainless steel metal workers


steel assembly services

steel buildings

steel erectors

structural steel

structural steelwork


fire escapes

architectural metal workers

laser cutting

steel canopies

steel suppliers


aluminium fabrications



Onsite Welding Services

Builders Beams

Twin Beams, PFC, UC, UB, SHS

Twin Beams, portal frames, Box Frames



  • Steel Construction Certification Scheme


Lovely Company

Great team working behind the scenes, always friendly and responsive in their communication. Lovely company to work with!
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Bespoke 5 bedroom house, Surrey

Without doubt the best fabricating and fitting service I have experienced. Karthy and team at Steel-Mac Engineering were professional and above all came in on time and within budget for our complicated project. They worked in conjunction with the structural engineer to deliver an end result which surpassed our expectations. Having come up with innovative solutions to problems along the way, the workmanship was of the highest standard and the site was always left clean and tidy after completion of the various stages.

Safety was never compromised and the whole team were, couteous, polite and personable (one of the guys is a regular on DIY SOS but didn’t mention this until I spotted him on one of the shows!).

I can not recommend Karthy, Billy, Eddie and the rest of the team highly enough. You’re in safe hands and the price for the work is very competitive. Well done Steel-Mac, see you on the next project!

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Great service,

Cannot be praise enough. Really good device and very professional team, many thanks to Karthy for all his support and guidance.,
05 Aug 2017
Thanks Nadeem pleasure to be of assistance
05 Aug 2017
Thanks Nadeem pleasure to be of assistance
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Steel frame roof amongst others

Big fan of these guys. The service and knowledge is top level, and from a project management point of view I can't think of anyone better than Karthy to run the steel frame side of my projects with.
24 May 2017
Thanks Kevin.. see you on your next build
24 May 2017
Thanks Kevin.. see you on your next build
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Steel mac done my extension and they we're so professional. The quiality of the work was amazing and
I would recommend them without compromise
24 May 2017
Many thanks we are happy to be of service..
24 May 2017
Many thanks we are happy to be of service..
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