External technical office support for contractors
Construction produces changes and information faster than many site teams can document them. trazo provides external technical office support to turn site decisions into controlled drawings and prepare reliable handover information.
We work with site managers, production teams, specialist contractors and engineers. Support is available remotely, with site visits in Barcelona and Catalonia when required.
Foto del servicio
Support during construction
- Setting-out and construction drawings.
- Updates to plans, sections and details.
- Integration of specialist subcontractor information.
- Architectural, structural and MEP drawing coordination.
- Detail packages for design-team review.
- Drawing support for meetings and progress records.
- Collection and production of final as-built information.
Support by project stage
| Stage | Typical support |
|---|---|
| Tender | Drawing review, quantities and bid documentation |
| Mobilisation | Logistics, setting-out and coordination drawings |
| Construction | Site changes and specialist drawing packages |
| Handover | As-built drawings and final records |
Frequently asked questions
Can you join a project already under construction?
Yes. We begin with a short audit of available drawings, changes and responsibilities, then propose priorities.
Can you attend site?
Yes, in Barcelona and other parts of Catalonia subject to scope and availability.
Can you prepare only the as-built package?
Yes. We can update clearly marked changes or help collect and coordinate the missing information.
Do you support civil works?
We can assist with drafting for external works, utilities, sections, details and recorded changes after reviewing the project scope.
Tell us what you need.
Send us your project details and receive a firm, no-obligation quote within one business day.