Structural steelwork
Erection of steel frames, girders, trusses, and structural reinforcement for industrial facilities.

Technical solutions in steel structure fabrication, process piping installation, and technical access platforms for industrial facilities.
Operations initiated in Ciudad del Plata, consolidated in Valencia
Structural steel, process piping, and industrial platforms
Tailored for process plants, fabrication shops, and contractors
Risk assessment prior to every mechanical lift or intervention
We execute electromechanical assembly projects, process piping networks, and structural fitting with qualified technicians and consistent site supervision.
Industrial assembly requires geometric precision, material expertise, and strict adherence to occupational safety protocols. At MASEG, we coordinate directly with client engineering teams to fabricate and erect components within controlled tolerances.
Our scope extends from component prefabrication to final on-site erection, integrating structural members, process fluid headers, and safe access systems for operating and maintenance staff.
Erection of steel frames, girders, trusses, and structural reinforcement for industrial facilities.
Installation, alignment, and specialized welding of piping circuits for fluid, steam, and compressed air.
Fabrication and assembly of elevated catwalks, safety ladders, handrails, and grating for maintenance access.
Forming and assembly of hoppers, ductwork, specialized brackets, and tailored components per blueprint.
Precision leveling and mechanical fastening of equipment frames, baseplates, and support fixtures.
Re-routing of operational lines, replacement of fatigued segments, and localized structural reinforcement.






In-depth review of specifications, tolerance requirements, and on-site dimension validation.
Occupational risk assessment, work permit protocols, and access clearance for the work area.
Cutting, beveling, and preliminary spool assembly to minimize site disruption during installation.
Rigging, mechanical fastening, and specialized welding under steady technical oversight.
Dimensional cross-check, joint inspection, and formal handover to the client technical lead.
Clear communication between your engineering staff and our field leads, eliminating unnecessary layers.
Strict risk evaluation before any mechanical lift or intervention, safeguarding personnel and assets.
Trajectory begun in 2013, bringing practical familiarity with process plants and heavy industrial environments.
Transparent scope boundaries and honest timeline projections, honoring agreed milestones responsibly.
MASEG evaluates every project under professional confidentiality and technical rigor. To review sector-specific references or request an engineering scope assessment, please contact our team directly.
We carry out specialized welding adapted to base materials and project specs (carbon steel, stainless steel), ensuring sound root penetration, proper beveling, and clean bead finishes per blueprint.
Yes. We coordinate dedicated work crews to match client maintenance windows and shutdown schedules.
Our operational base is in Valencia, serving projects across the Valencian Community and major industrial corridors throughout Spain.
Contact us directly via phone or email providing your drawings, scope specs, or bills of quantity. Our technical team will review the documentation to coordinate an on-site visit or detailed proposal.
Connect directly with our engineering team to evaluate project scope, technical specifications, and delivery schedules.
For technical inquiries or commercial requests, you can contact our technical team directly.
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