When a structural defect, cracked machine or urgent steel repair threatens to halt work, you need a team that comes to you with the right skills and equipment. Alpha Welding provides reliable mobile welding across London, bringing a fully equipped workshop directly to your site so that repairs and fabrication can be completed without delay. Based in Horsham and serving the wider South East, we are one of the region’s leading providers of welding, burning and fabrication services, trusted by major contractors and Network Rail for time-critical site work.
We know that downtime is costly and that access in the capital can be challenging. Our mobile welding teams are set up to work cleanly around live operations, in tight spaces and on busy sites, completing each job to a high standard before handing the area back safe and tidy. Call us today on 01403 458874 or visit our contact page to secure your free quote and discuss your requirements with our expert team.
What Our Mobile Welding Services Include
Our mobile welding and burning service brings a complete on-site setup to your London location. Whether the job is a one-off repair or part of a planned programme, we arrive prepared with welding plant, generators, consumables and the access and fire controls needed to work safely.
On-Site Welding and Cutting
We deliver on-site welding using MIG, TIG and MMA (ARC) processes, working with mild steel, stainless steel and aluminium. Typical tasks include crack repairs, reinforcement and splice plates, brackets and gussets, handrail and guardrail repairs, stair and platform modifications, and RSJ connections. For removal and alteration work, our mobile burning service uses oxy-fuel cutting for heavy sections and plasma cutting for precise work on plate and thinner materials.
Plant, Machinery and Structural Repairs
We repair plant and machinery in situ to cut disruption and transport costs, covering buckets, cutting edges, cracked arms and frames, wear plates and bracket fabrication. For structural steel repairs across London, we restore integrity to beams, supports and connections, then provide clear documentation on completion.
Why Choose Alpha Welding for Mobile Welding in London
Choosing a welding contractor for work in the capital means weighing up competence, reliability and safety. Alpha Welding offers all three, backed by more than a decade of hands-on experience and a strong base of repeat clients.
Founded in 2012 by Charley Moroney, the business began as a one-man operation and has grown steadily into a trusted provider with a fleet of mobile welding and burning teams, supported by fully equipped workshops in Rudgwick, West Sussex. That growth reflects a simple principle: we invest in our equipment and our standards so you get the best result on every job. You can read more about our story on our about page.
Our reputation is built on consistent, high-quality work. Clients regularly describe our team as responsive, knowledgeable and reliable, offering great value and clear communication from first enquiry through to sign-off. For London projects where deadlines and budgets are under pressure, that dependability matters.
Accredited and Compliant
Our work is supported by industry-recognised credentials that underpin both welding quality and site safety:
- CSWIP code a weld welding certification, with a heritage in welding certification since 1982
- CSCS Construction Skills Certification Scheme approval
- TWI, The Welding Institute, affiliation
- Network Rail Sentinel accreditation for rail environments
These accreditations are not just badges. They inform how we plan, execute and document every job, giving you confidence that repairs meet the required engineering standards. Our vehicle fleet is fully Chapter 8 compliant and kitted out for all types of work, so we arrive ready to operate safely in any London setting.
Sectors and Use Cases Across London
London’s scale and density create constant demand for on-site welding services. From commercial premises in the City to construction sites, rail depots and industrial estates on the outskirts, our mobile teams adapt to a wide range of environments.
Construction and Civils
We support RSJ connections and remedial works, temporary works steel, bracing and barriers, plus stair, handrail and edge protection. Mobile welding keeps construction projects moving by resolving fit-up issues and structural adjustments on the spot. If you would like more detail, our guide on how mobile welding keeps construction projects on track explains the approach.
Rail and Infrastructure
Trusted by Network Rail for urgent site work, we handle burning, welding and emergency repairs with speed and safety. Our Sentinel accreditation means we are ready to support rail depots and infrastructure projects across and around London where compliance is essential.
Commercial, Industrial and Estates
For commercial property and managed estates throughout London, we carry out gate, railing, door and security steelwork repairs, access compliance fixes for handrails and balustrades, and reactive welding maintenance. In warehousing and industrial settings, we repair platforms, walkways, racking, safety barriers and conveyor frames.
You can see examples of the scope and quality of our work, including handrail fabrication for a multi-storey London office, in our projects portfolio.
Emergency and Planned Welding Works
Some jobs cannot wait. We provide an emergency welding service and welding call-out for impact damage, broken welds, vandalism repairs and urgent safety defects on barriers, handrails, stairs, doors and gates. Where a permanent fix is not immediately possible, we assess, make the area safe and complete an appropriate interim repair, then return to finish the work.
For planned projects, early involvement pays off. Bringing a reliable mobile welding partner into your supply chain before issues arise means a rapid response when you need it most. To understand the wider value, our article on the benefits of hiring a mobile welder for on-site repairs covers the practical advantages of working in situ.
Equipment, Safety and Documentation
Durable repairs start with sound preparation and the correct process. Our mobile units carry welding plant, generators and compressors, MIG, TIG and MMA equipment, oxy-fuel burning and plasma cutting gear, along with clamps, jigs and consumables for on-site fabrication. We focus on joint preparation, fit-up, heat input and compatible filler selection to ensure lasting results.
Safety is central to every job. We prepare method statements and risk assessments, manage hot works permits where required, and follow isolation and fire watch procedures. On completion, we provide a concise summary of works and any maintenance guidance, supporting quality and traceability for your records.
Get Your Free Quote for Mobile Welding in London
Whether you need a same-day emergency repair, a rapid response mobile welding team for an urgent defect, or support with a planned fabrication programme, Alpha Welding is ready to help. We combine certified expertise with practical, jargon-free advice, so you always know what to expect.
Call us today on 01403 458874 or visit our contact page to secure your free quote and discuss your requirements with our expert team.
Frequently Asked Questions
Yes. Operating from Horsham, we serve London and the wider South East with our mobile welding and burning teams. Get in touch with your location and we will confirm availability and response times.
Our mobile teams are equipped for MIG, TIG and MMA (ARC) welding, working with mild steel, stainless steel and aluminium. This covers everything from machinery repairs to structural steel modifications and architectural metalwork.
We repair excavators, loaders, dozers, telehandlers and ancillary plant, along with buckets, blades, booms, dippers, quick hitches and custom attachments, covering crack repairs, wear protection, line boring and strengthening.
Yes. We respond to urgent breakdowns and safety-critical defects to minimise downtime. Contact us with the issue, your location and photos so we can prioritise and arrive fully prepared.
To provide an accurate free quote, it helps to share the location, a description of the fault, access details and photos where available. This lets us assess the scope and arrive ready to complete the work efficiently.
About London
London is the capital of England and the United Kingdom, and one of the largest and most economically active cities in Europe. Its continuous construction, refurbishment and infrastructure activity places heavy plant and machinery under constant demand, from excavators and loaders on groundworks to specialist equipment on rail and civils projects. With extensive transport networks, major commercial estates and ongoing infrastructure programmes across Greater London, the need for accredited, responsive plant repairs remains high, making dependable on-site and workshop support an important part of keeping the capital’s equipment safe, productive and on schedule.
