Your Assists Your Profits
Call now on 0481093966
Stronghold Industrial Services - pressure welding, fabrication & system installations across Sydney. Minimizing downtime, maximizing your profitability.
steam systems
Our in-depth knowledge of steam generation and distribution systems is the mainstay of our business. We ensure your facility runs efficiently and smoothly from installation through its entire service life.
marine
Marine welding and fabrication form a vital part of our business. We handle piping systems, structural welding, and vessel repairs - experienced working on slips, in dry dock, or on the water.
personnel
We maintain a network of industry professionals ready to scale up for larger projects. Our director, Alec Marjoribanks, holds Welding Certificate 10 (Welding Supervisor AS1796) and personally oversees all welding work. This allows us to mobilise qualified teams quickly and efficiently for your project
quality
New project or breakdown - we're committed to getting your assets operational no matter the challenges involved. We work to Australian standards AS/NZS 1554, AS 3992, and AS 4041, while being fully familiar with international codes including ISO 9606, ASME Section IX, and AWS D1.1. Following ISO 9001 and ISO 3834 principles, we maintain material traceability, welder qualifications, inspection records, and test documentation throughout your project.
steam
We handle steam systems from boiler connections through to condensate recovery, including PRV stations, flash vessels, and economisers. Piping work spans all sizes and schedules in carbon steel, alloy steels, and stainless with appropriate heat treatment where required. We ensure proper gradients, expansion compensation, and support spacing for reliable operation. Whether it's retrofitting an existing plant, increasing capacity, or solving chronic wet steam problems, we understand the thermodynamics and practical requirements of steam systems. We'll identify why your traps are failing, why you're getting water hammer, or why your condensate return is cavitating pumps - and more importantly, fix it properly.
marine
Our marine work covers all aspects of fabrication and repair from structural steel to detailed pipework. Hull repairs, deck modifications, piling work for wharves and jetties, bollard installations, and gangway structures. Piping systems include fuel, bilge, ballast, hydraulics, and exhaust - in steel, stainless, copper-nickel, or aluminum as required. Whether it's emergency repairs to get you sailing, scheduled dry dock work, or new installations while you're alongside, we mobilise with the right equipment. We'll work on slips, in dry dock, on the water, or on your wharf infrastructure - wherever you need us.