Colorado's Most Trusted Steel Fabrication and Construction Partner

Allen Builders is a comprehensive steel fabrication and construction company specializing in structural steel services, custom metal fabrication, and complete building systems from design through installation. With full in-house engineering capabilities and project management expertise, we deliver turnkey steel solutions for commercial, industrial, and infrastructure projects across Colorado.

Structural Steel Fabrication and Construction

Our advanced BIM modeling and design-assist services ensure seamless project coordination from initial concept to final erection, while our experienced team handles everything from complex structural frameworks to custom architectural metalwork.

We maintain the highest standards of safety and quality assurance throughout every phase of construction, backed by efficient logistics and material sourcing capabilities. Whether you need a complete pre-engineered building system or specialized steel components, our integrated approach provides clients with a single-source solution for all their structural steel needs.

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Structural Steel

Complete structural steel solutions from fabrication to installation.

Structural Steel Fabrication
Steel Frame Construction
Steel Erection Services
Bridge Construction/Repair
Stairs & Railings

Engineering & Design

Full-service engineering and design capabilities for optimal project outcomes.

BIM Modeling
Structural Engineering
Design-Build Services
Design-Assist Services
In-House Detailing
Project Management

Custom Metal Fabrication

Specialized metalwork tailored to your unique project requirements.

Custom Steel Fabrication
Specialty Metal Forming
Architectural Metalwork

Building Systems & Components

Comprehensive building components for complete structural solutions.

Pre-Engineered Metal Buildings
Steel Joists & Girders
Steel Decking

Our Projects Showcase

From complex commercial structures to custom architectural elements, these completed projects demonstrate our commitment to precision, innovation, and exceptional craftsmanship.