Sign gantries and variable message sign structures
We design, manufacture and install overhead gantries and cantilever structures for elevated signage and variable message signs (VMS) on urban roads, access routes and highways.
Overhead signage that is visible and safe
Gantries carry the information drivers need to see in time: guide signs, lane control and variable message signs. The structure must withstand equipment weight and wind loads throughout its service life.
SEBLAN manufactures the complete structure and installs it on site. We delivered the variable message sign gantries for EPMT in Santo Domingo and built information trailers for EPMMOP in Quito.

What our service includes
From engineering to installation over the road.
Full-span gantries
Structures spanning the whole carriageway for signage and equipment over several lanes.
Cantilever structures
Single-post supports holding signs and panels from the roadside.
VMS supports
Structure and fixings sized for the project’s variable message sign.
Information trailers
Trailer-mounted panels for detours, roadworks and temporary traffic management.
Foundations and erection
Foundation works, crane lifting and on-site installation.
Maintenance
Inspection and maintenance of the structure and its fixings.
How we work
One partner accountable for the structure from start to finish.
Survey and engineering
Site visit, design and drawings based on the project specifications.
In-house fabrication
Manufactured at our Quito plant under an ISO 9001 management system.
On-site installation
Transport, lifting and installation with our own crew and equipment.
Support and maintenance
After-delivery support and maintenance of the structure.
Related projects
Overhead signage projects delivered by SEBLAN.



Frequently asked questions
What clients usually ask before starting a project.
What is a variable message sign (VMS)?
An electronic panel that shows drivers updatable messages about road conditions, detours or emergencies. SEBLAN manufactures and installs the structure that supports it.
Do you also supply the electronic panel?
Our core scope is the steel structure and its installation. We coordinate with the panel supplier or project integrator so the structure fits the equipment.
What is the difference between a gantry and a cantilever?
A gantry is supported on both sides and spans the whole road; a cantilever is supported on one side only. The choice depends on road width and the equipment to be installed.
Do you install on roads in operation?
Yes. We plan the installation with the road authority to coordinate schedules and closures.
What do you need to prepare a quote?
Location, road width or number of lanes, panel or sign dimensions and weight, and the project’s technical specifications if available.
Other services
Need gantries for a road project?
Send us the location and dimensions and we will prepare a technical and commercial proposal.