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Theo Steel provides superior structural solutions built to endure generations.

The TheoSteel ecosystem

Everything that stands
behind a finished building.

Twelve disciplines feed one production line — from coil procurement and engineering through to logistics and after-sales.

Headquarters · Kardzhali, Bulgaria

  • Hover or tap a discipline to see what happens there.
Bulgaria Headquarters

We love bringing every type of space to life.

More than 25 years of experience, galvanised frames rolled in our own plant and drawings adapted to every plot. Everything from one hand.

More about TheoSteel
Installer working on a steel building frame
Show home exterior at dusk
Showroom

Walk inside. Touch the wall build-up.

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01

Flat-packed product

Complete steel kits delivered directly to your site for fast, efficient assembly with reduced logistics and transport costs.

02

Fabricated product

Precision-engineered steel frames, factory-assembled for faster installation and flawless structural performance.

03

Mobile factory

On-site roll forming for faster, cost-efficient, high-volume steel profile production.

04

Turnkey or Shell & Core Options

Flexible steel solutions, from shell & core to complete turnkey delivery.

EN 1090-2EXC2 ISO 9001QUALITY ISO 14001ENVIRONMENT S280GDSTEEL GRADE Z100GALVANISING CECONFORMITY AISI S240FRAMING STANDARD ISO 45001SAFETY

Selected references

All references
Dedeman Village Residential Project 2024

Dedeman Village Residential Project Ankara, Türkiye

»Four distinct residential typologies come together in a contemporary community designed around modern living. Light gauge steel construction delivers the structural strength, construction speed, and design flexibility required for efficient residential development.«
See the project
Our Residential Complex Project in Croatia 2026

Our Residential Complex Project in Croatia Croatia

»This project engineered with high-grade structural steel and premium exterior cladding, this project combines superior material durability with the rapid precision of light gauge steel technology.«
See the project
UNICEF Children’s Homes Project 2025

UNICEF Children’s Homes Project Ankara, Türkiye

»Developed in collaboration with UNICEF, this project brings together the strength of light gauge steel construction with the need for safe, warm, and welcoming living environments for children.«
See the project
Lina Modern Steel Home 2025

Lina Modern Steel Home Ankara, Türkiye

»Designed for modern comfort. Spanning 125 m² of single-story floor area in Ankara, this minimalist residential project combines structural steel precision with column-free layout flexibility to create fluid, light-filled living spaces.«
See the project

Latest projects

See all projects
Mila Steel Villa

Mila Steel Villa | Croatia

Two-storey
Kocaeli Precision Villa

Kocaeli Precision Villa | Kocaeli, Türkiye

With loft
Canada Residence

Canada Residence | Canada

With loft
Istanbul Educational Complex

Istanbul Educational Complex | İstanbul, Türkiye

Single-storey Education

Cross-section of a
steel frame wall

Six layers, 27.6 cm, U = 0.21 W/m²K. Here is what a wall built by TheoSteel actually contains — from the rain screen outside to the double plasterboard inside.

Explore the full build-up
OUTSIDE INSIDE Hover a layer to see what it does
Why TheoSteel

Recognised expertise,
measured in real buildings.

About the company

Resources

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TheoSteel

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Together we will find the right solution for your plot.

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