Custom steel frame houses

Q: What materials and construction techniques does JANSHOUSE use?

The main structure of JANSHOUSE uses structural steel tubular profiles calculated according to CTE regulations and manufactured with EN1090 certification. The roof and façade envelope is usually made of sandwich panel, although it can be adapted to any envelope solution required by the architectural project. The structure is protected by hot-dip galvanized or epoxy paint, depending on the exposure conditions. The entire manufacturing process, from cutting and welding to surface treatment, is carried out at our plant in La Roca del Vallès.

Luxury homes, bungalows and residential developments

Construction system – JANSHOUSE

Customized single- and two-storey steel houses

The construction of houses with a steel structure makes it possible to reduce deadlines, improve precision and guarantee greater durability compared to traditional systems. JanSHouse is the construction system of Jansa Metal for single-family homes of one and two storeys, where the steel structure is manufactured in the workshop with full quality control and delivered to site ready for assembly.

We design custom steel houses, from modern single-family homes to complete housing developments, offering a faster, cleaner and more controlled construction process, with no on-site improvisation.
We work with architects, engineers and developers who already have a defined project.
Are you ready to build a unique home with maximum speed and strength?

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Why Choose JansHouse?

Speed, Precision, and Savings

We manufacture the components at the plant and assemble them on site, which reduces construction time by up to 40% compared to traditional construction. Less time on site means fewer unforeseen events, lower costs and greater project control.

High Strength and Safety

Structural steel is the material with the best strength/weight ratio in construction. JANSHOUSE steel houses are calculated according to CTE regulations and manufactured with EN1090 certification, which guarantees real structural safety in any type of project.

Design Versatility

JANSHOUSE metal frame houses can be adapted to any architectural program: one or two-storey houses, bungalows, prefabricated modular houses or multi-unit developments. The structure does not limit the design, it makes it possible.

Spacious and Bright Areas

The large spans of the metal structures allow for open spaces without intermediate pillars, high ceilings and large-format glazed facades. Ideal for exclusive design homes and unique architectural projects.

What We Do at JansHouse?

Discover all the types of houses that we can manufacture in metal structure.

Luxury Homes and Large-Scale Projects

We design and manufacture exclusive design houses combining metallic steel structures with high-end finishes. For clients and architectural studios looking for a differential result, with total formal freedom and maximum precision in execution.

Bungalows and Prefabricated Houses

Our bungalows and prefabricated houses with steel structure stand out for their speed of execution and high level of customization. Ideal for projects in plots of land with difficult access, second homes or any location where deadlines are decisive.

Residential Developments and Housing Complexes

If the objective is to build multiple dwellings within a residential project, steel structure is the most efficient choice: repetition of modules, controlled schedules, predictable costs and uniform quality in all units. We work with developers on projects ranging from 4 to more than 50 homes.

Ateliers and Large-Scale Workshops

For creative or professional projects that require unique spaces – architecture studios, design workshops, industrial bakeries – we design metal structures that combine functionality and personality. The custom steel structure adapts to any space and program needs.

Want to know all the options for your project? Request a quote now and discover how we work.

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Key Benefits of Building with JansHouse

With JansHouse, every project adapts to your goals:

Espacio sin restricciones. Spacious and Bright Areas: The long spans of our structures eliminate architectural barriers, allowing for open interiors filled with natural light.

Design Versatility: From family homes to commercial projects, our structures adapt to any idea and terrain. Superior Durability: Our constructions are built to withstand the test of time and any climatic or geographical challenges.

Precision and Savings: We fabricate every structure with millimeter-level precision. This means that what you see on the plan is exactly what gets built. The in-plant fabrication simultaneous to site preparation drastically reduces construction time. A project that would take 18 months in traditional construction can be ready in 10-12 months with JANSHOUSE.

Certified quality We manufacture with EN1090 certification and more than 40 years of experience in metal construction. Each component is checked at the factory before arriving on site.

This reduces construction time, improves planning, and prevents cost overruns from last-minute improvisations. Speed and Efficiency: Execution times are much shorter, thanks to our industrialized construction system, which features dry-bolted assembly without waiting for drying or curing.

With 40 years of experience, Jansa Metal guarantees solid and efficient results in every project.

FAQ’s

What is JANSHOUSE and what advantages does it offer for the construction of custom houses?

JANSHOUSE is Jansa Metal’s construction system for housing and residential projects with a metallic steel structure. It combines structural steel tubular profiles with sandwich panel cladding to create efficient, durable and fully customizable spaces.
Its main advantages over traditional construction are: reduced lead times of up to 40%, greater precision in manufacturing, EN1090 certified quality and total freedom of architectural design. Valid for steel single-family houses, bungalows, residential developments and large-scale professional spaces.

What is the design and manufacturing process of a custom house with JANSHOUSE like?

The process begins with an initial consultation to define the program of needs: number of floors, surface, typology and objectives of the project. From there, we design the steel structure using BIM technology, which allows us to detect possible conflicts before fabrication.
Once the executive project is approved, we fabricate all the components at our plant in La Roca del Vallès with EN1090 quality control. On-site assembly is fast and clean: the structure arrives ready to assemble, with no wet work in the structural phase. The usual time from design to delivery of the structure ranges from 8 to 16 weeks depending on the size of the structure.

What level of customization does JANSHOUSE offer in home design?

JANSHOUSE offers total customization in distribution, dimensions, number of floors and roof typology. The custom-made metal structure allows us to work with any architectural program defined by the client or his architectural firm: from compact one-story dwellings to residential complexes with unique geometries. We do not work with standard catalog models – each project starts from scratch and is calculated specifically for its site conditions, loads and regulatory requirements.

What types of projects can be carried out with JANSHOUSE?

JANSHOUSE es adecuado para una amplia tipología de proyectos residenciales y profesionales: casas unifamiliares con estructura de acero de una y dos plantas, bungalows de lujo, casas prefabricadas a medida, promociones residenciales de múltiples unidades, complejos de apartamentos, ateliers y obradores de gran envergadura. También es una solución habitual para arquitectos y estudios que buscan un fabricante con capacidad de cálculo propio, BIM y montaje integrado, sin necesidad de coordinar múltiples subcontratas.

What materials and construction techniques does JANSHOUSE use?

The main structure of JANSHOUSE uses structural steel tubular profiles calculated according to CTE regulations and manufactured with EN1090 certification. The roof and façade envelope is usually made of sandwich panel, although it can be adapted to any envelope solution required by the architectural project. The structure is protected by hot-dip galvanized or epoxy paint, depending on the exposure conditions. The entire manufacturing process, from cutting and welding to surface treatment, is carried out at our plant in La Roca del Vallès.

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.