If you want to build worry-free, finish a quality construction project on time and on budget, we have a plan for you.



Forget the hassles and complications
At Jansa Metal, building is like assembling a LEGO set: fast, easy, and with millimeter precision.
We ensure every piece fits perfectly so your project takes shape WITHOUT SETBACKS. Build with us and experience ease and precision in all your structures!

PLANNING AND DESIGN
Plan Review and Analysis, 3D Modeling


QUOTATION AND VALIDATION
Quotation and Optimization, Final Calculation and Validation


PRODUCTION AND EXECUTION
Fabrication and Erection
The Best Guarantees
In the construction, fabrication, and erection of steel structures

How do we do it?
Innovadoras formas de trabajo para los proyectos con los últimos avances en tecnología que están transformando el sector de la construcción.
What We Offer
As BIM project developers, we can lead turnkey construction projects, providing total peace of mind with personalized support from start to finish to make your project a reality.
Want us to handle everything?
As experts in turnkey construction services, we offer peace of mind with personalized, end-to-end support to find the most suitable solutions.
Solutions for Every Need
WE BUILD YOUR DREAM
Advantages of Building
WITH STEEL STRUCTURES
FAST AND EFFICIENT ERECTION
We adapt to the most demanding construction schedules, without delays or unforeseen events. Everything ready for you to move forward without interruption.
DESIGN FLEXIBILITY
Every project is unique. We create custom solutions for everything from residential homes to large-scale infrastructure.
COST REDUCTION
Steel structures that achieve more with less: less material, less volume, more efficiency. The perfect balance between investment and performance.
SUSTAINABILITY
Efficient processes and recyclable materials for responsible and future-ready solutions.
WE FOLLOW BEST PRACTICES
At Jansametal, we understand what you need and expect from every project. Because for us, meeting your expectations isn’t just a goal, it’s our duty.

We Listen
We advise you
to achieve the best results
at the best price.

Fast Quote
A detailed construction
project quote, delivered
without delay.

Latest Technology
State-of-the-art software and machinery
to achieve maximum
efficiency and quality.

Quality Guarantee
Execution Class 3 (EXC3) certification
according to the EN 1090 standard
(CE marking).
Rodrigo de Febrer y Herrán
“A supplier you can still contact almost 40 years later—who answers you, knows their product inside out, offers solutions and treats you in a professional yet familiar and approachable way—is truly a treasure. Thank you, JANSA! .“
Sophie Leclerc
““We’ve worked with them for years. At this point, there’s no need for explanations: you send them the drawings, and they come back with solutions. Their calculations and execution are flawless. They know what they’re doing, and it shows.” “
Carlos Media
““With Jansa Metal, we save weeks on site. Not just because of the speed of erection, but because from the first 3D model to the final drawing, everything was clear, coordinated, and on time. That’s how you build with confidence.” “
Jean-Michel Dupont
““Every piece is marked, everything fits together, and you don’t have to improvise. It arrives like an IKEA kit, but it’s the real deal. They elevate the erection process without wasting your time.” .”.
Some of Jansa Metal’s clients
Ready for the First Step? Contact us!
Every great project starts with a conversation. Contact us and find out how we can bring your idea to reality, with metal structures that are as solid as your expectations.
Quality, Professionalism, and Commitment
At Jansa Metal, we specialize in custom-built steel buildings and mixed structures, providing high-quality components to save you intermediaries and lower your project costs.
Using our CAD-3D-BIM system, we prepare custom designs for your project to bring your ideas to life. Our mission is to meet our clients’ needs, which is why we deliver a building made from prefabricated components through a fast and easy erection process, reducing construction time by one-third.




