UniSteel400 is a Colorado‑based erector specializing in pre‑engineered metal buildings (PEMBs). Our crews are experienced on projects ranging from warehouses and municipal facilities to farm structures and residential shops. We handle the full erection scope with documented safety and quality control, serving Colorado and the broader Midwest as a certified Butler Builder®.
Colorado Steel Building Erection Specialists

What We Build & Erect (PEMBs)
We construct steel buildings for commercial, municipal, agricultural, and residential projects.
Commercial & Industrial
- Warehouses & Distribution Centers
- Manufacturing Facilities & Machine Shops
- Restaurants & Breweries
- Office & Retail
- Self‑Storage
Municipal & Public Works
- Government Buildings & Municipal Storage
- Police & Fire Stations
- Community Centers & Public Facilities
- Fleet & Public Works Shops
Agricultural & Equestrian
- Barns & Equipment Storage
- Hay & Feed Storage
- Riding Arenas & Horse Stables
- Livestock Shelters & Animal Sheds
- Workshops, Offices & Outbuildings
- Cannabis Buildings
Residential Shops & Outbuildings
- Garages, Workshops & Storage Buildings
- Carports & RV Covers
- Homes/Cabins & Outbuildings
- Kennels & Sheds








Why Owners Choose UniSteel400
Speed, Safety, Quality: Dedicated PEMB erection crews; EMR 0.84 for proven safety.
Full‑Scope Erection: Anchor bolt verification, framing, envelope, doors/windows, insulation systems (Simple Saver, IMPs), trim and weathertightness.
Documentation & Inspections: We erect to stamped drawings and maintain site documentation to streamline approvals.
Multi‑Manufacturer Ready: We coordinate with leading PEMB manufacturers—ready the day your building arrives.
Colorado Experience: Founded in 2019; family‑owned, multiple crews led by experienced leaders.
Serving Denver Metro, Northern Front Range, Eastern Plains, Western Slope and neighboring states including Wyoming, Texas, New Mexico, Kansas and Nebraska.
Service Areas
We erect buildings across Colorado (Denver Metro, Northern Front Range, Eastern Plains, Western Slope) and into neighboring states (Wyoming, Texas, New Mexico, Kansas, Nebraska).

Popular Building Types
Why Choose Us
UniSteel400 is a building contractor specializing in the erection of pre-engineered metal buildings. We have constructed a diverse array of buildings from large agricultural buildings & warehouses to school gymnasiums and rock climbing gyms. We have worked for some the largest contractors in the Midwest.


News
Steel Building Construction Mistakes: What We See Most (and How We Avoid Them)
Steel Building Construction Mistakes: What We See Most (and How We Avoid Them)
Custom Metal Building Features That Make Commercial Projects Faster, Smarter, and More Profitable
Custom metal building features explained: choose clear spans, crane loads, energy-smart envelopes, and code-ready PEMBs with expert tips for speed and ROI.




