Allen Welding Ltd · Company 03821458
Active, accounts up to date·subcontractor·Head office Plymouth
Allen Welding Limited is a specialist in pipeline welding, fabrication, and on-site erection of pipework, serving various industries including gas, oil, steam, water, engineering, NHS, and multiple occupancy buildings. With over 35 years of experience, they handle all aspects of pipeline installations for steel, MDPE, and HDPE pipes, covering all sizes and pressure ranges. Their comprehensive services include CDM management, pipeline construction, steel pipeline welding, connections onto existing gas mains, installation of new on-site gas mains and services, gas meter inlet pipework, gas outlet works fabrication and installation, and installation of gas risers.
They also offer fabrication of gas manifold systems, decommissioning, testing, purging, and installation of gas valves, civil engineering, and under-pressure connections. The company prides itself on delivering projects on budget and on time with an expert professional service, ensuring high-quality welding and fabrication. They are committed to safety and compliance with relevant legislation, employing qualified Gas engineers and experienced personnel with various certifications.
St Austell, Cornwall
Installation of 250mm PE/MP Diversion Project. To Divert PE/LP in trench provided by others, Abandon existing. Carry out all connections and transfer supply to new main. Lay/ Test / Commision all pipe.
Client · Wales and West Utilities
Barnstaple
Installation of 8" Intermediate gas pipeline. Full Project Management. Allen Welding to carry out initial Phase - Array inspection and Q10 Sampling. Construction of 8" IP pipework.
Client · Wales and West Utilities
Swindon
Installation of Mapress gas riser system to replace old existing main which feeds 40 x properties. Allen Welding Limited to Test and Commison.
Client · WGA
Wales and West Utilities, WGA, NHS.
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Allen Welding Limited specialises in pipeline welding, fabrication, and erection of pipework on-site. They offer design and installation of gas manifolds, maintenance services, and a range of pipe specifications for specialist applications. Their listed services include Steel fabrication, Utilities and Civil engineering.
Allen Welding Ltd is registered at Devonshire Villa 52 Stuart Road, Stoke, Plymouth, PL3 4EE, in South West.
Allen Welding Ltd states that it works across Nationwide.
Accounts filed for the year to 2025 report 20 employees, which places the company in the 10-49 employees band.
Allen Welding Ltd does not disclose turnover: UK small-company accounts are not required to. Based on headcount and trade debtors in its filed accounts, turnover is likely to fall between £2.0m and £5.3m. This is an estimate, not a filed figure.
Companies House lists Allen Welding Ltd as active, with accounts most recently made up to 2025-07-31.
Allen Welding Ltd displays ISO 9001, TWI ISO 3834, ISO 14001, ISO 45001, Achilles and Lloyd's Register GIRS on its website.
Allen Welding Ltd works in Industrial, Infrastructure, Healthcare, Residential and Commercial.
Allen Welding Ltd was incorporated on 1999-08-06.
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