In a world where flexibility, value, and long-term durability matter more than ever, custom steel buildings offer the perfect solution. Whether you’re dreaming of a rustic-modern barndominium, need a rugged commercial facility, or want to add usable space to your property, Steel Erection and Maintenance, Inc. (SEMI) delivers fully customized steel structures tailored to your vision.
Built for Arizona’s extreme weather and designed for long-term performance, SEMI’s steel buildings combine strength, efficiency, and personalized design at an exceptional value.
Residential Steel Buildings
Barndominiums – Stylish, Spacious Homes with Customizable Interiors
Barndominiums are more than a trend—they’re a lifestyle. These hybrid steel structures blend barn-inspired aesthetics with contemporary living comforts. SEMI works closely with homeowners to craft unique barndos that offer expansive open-concept layouts, high ceilings, and energy-efficient materials. Whether you’re building your forever home or a vacation escape, SEMI brings your vision to life.
Detached Garages & Workshops – Ideal for Storage, Hobbies, or Home Businesses
Need a secure space for your vehicles, tools, or creative pursuits? SEMI designs and erects custom detached garages and workshops that suit your needs and your property. From oversized vehicle bays to insulated hobby spaces and home-based business setups, these steel structures are tough, low-maintenance, and built to your specs.
Guest Houses & ADUs – Comfortable, Cost-Effective Secondary Living Spaces
Adding a guest house or accessory dwelling unit (ADU) is a smart way to expand property use—and steel makes it faster and more affordable. SEMI creates standalone steel structures that function as private retreats, rental units, or in-law suites. These compact homes come with full customization and built-in durability for long-term use.
Steel Frame Homes – Modern Living with Superior Efficiency and Strength
For homeowners seeking the look and function of a traditional home with the added benefits of steel, SEMI constructs full-scale residential builds using energy-efficient framing. These homes provide better insulation, lower upkeep, and unmatched resistance to pests, fire, and structural degradation. Steel isn’t just an upgrade—it’s the future of housing.
Commercial Steel Buildings
Warehouses & Industrial Facilities – Built to Handle Heavy-Duty Demands
When it comes to industrial use, steel leads the way in scalability and cost-efficiency. SEMI constructs large-scale warehouses, fulfillment centers, and fabrication spaces that prioritize clear-span interiors, load-bearing capacity, and long-term durability. These buildings are engineered to grow with your business.
Retail Spaces – Flexible Designs for Maximum Usability and Appeal
From standalone boutiques to full strip malls, steel offers adaptable layouts for commercial retail environments. SEMI’s steel buildings can be customized with storefront facades, partitions, loading docks, and utilities—creating functional and visually appealing spaces that attract both tenants and customers.
Offices & Clinics – Functional, Comfortable, and Built to Code
SEMI builds sleek, professional office spaces and medical or dental clinics with the clean lines, insulation, and layout flexibility modern businesses need. These structures are easy to maintain, highly customizable, and compliant with local and state commercial codes—making them perfect for long-term professional use.
Restaurants & Breweries – Unique Spaces with Wide-Open Potential
Creative hospitality businesses love the open space steel buildings offer. SEMI designs restaurant and brewery spaces that reflect your brand and serve your function—from climate-controlled taprooms to kitchens and patio-friendly layouts. You bring the flavor; we’ll bring the structure.
Agricultural & Utility Buildings
Barns & Storage Sheds – Rugged Shelter for Equipment, Feed, and More
Built to withstand Arizona’s harshest conditions, SEMI’s agricultural steel buildings keep your supplies and machinery safe year-round. From hay barns to general-purpose sheds, these structures are weather-resistant, low-maintenance, and designed for heavy-duty use on farms and ranches.
Equipment Garages & Livestock Shelters – Durable and Easy to Clean
Heavy equipment and animals both require structures that are sturdy, ventilated, and easy to maintain. SEMI’s custom garages and livestock shelters provide just that, with wide spans, reinforced frames, and surfaces that stand up to everyday use—and abuse.
Riding Arenas & Utility Sheds – Custom Solutions for Farm Operations
Whether you need a covered arena for year-round training or extra space for utility hookups and irrigation supplies, SEMI delivers tailored steel buildings that blend seamlessly with your property’s function. Efficient to build and cost-effective to run, these are practical structures that pay for themselves.
Why Choose SEMI?
Steel Erection and Maintenance, Inc. is a locally owned and operated Arizona company committed to building strong—literally and figuratively. We offer end-to-end service, from design and permitting to erection and inspection, ensuring your custom steel building is completed on time, on budget, and to exact standards.
We proudly serve the Kingman, Phoenix, and Prescott communities.
Licensed, insured, and backed by decades of steel expertise, SEMI takes pride in every beam, bracket, and bolt.
Get Started Today
Whether you’re building your dream home, launching a new business, or expanding your farm, SEMI can help you do it smarter—with steel. Call us at (928)-757-2211 or visit our website gallery for more examples of how we can make your custom build project come to life.
Let’s build something bold. Something strong. Something custom.