Modular Construction Services in California
Reliable Modular Construction in the Inland Empire
At Unified Modular in Corona, California, we build affordable modular classrooms, complexes, campuses, flexible space, bathrooms, and all other project-specific design elements that are completed to your specification. Our modular construction is specialty built and tailored to your building needs.
This is perfect for school site expansions, complete charter schools, construction offices, temporary or permanent workspaces, or any other use you can imagine.
Modular construction offers numerous benefits that make it an ideal choice for various applications. First and foremost, it provides affordability without compromising on quality or aesthetics. Our specialty-built modular structures offer excellent value for your investment. Additionally, the speed and efficiency of construction ensure quicker project completion, minimizing disruption and saving valuable time.
Call today to discuss your project and let’s work together to get it done on time and under budget.
All Building Sizes, Styles, and Types
- Mobile Offices
- DSA Classrooms
- Project Complexes
- Restrooms
- Ramps
- Containers
- Temporary Space
- HDC office, security, and flex space Buildings
The versatility of construction makes it perfect for diverse purposes. From school site expansions and complete charter schools to construction offices and temporary or permanent workspaces, our modular solutions can be tailored to suit any envisioned use. The adaptability of modular buildings allows for future expansion or repurposing as your needs evolve, ensuring long-term flexibility and cost-effectiveness.
Choose Unified Modular for your next construction project, and experience the advantages of construction tailored to your unique building requirements.
Explore Our Modular Construction Solutions in More Detail:
From classrooms and construction trailers to custom office buildings and used units, Unified Modular offers scalable space solutions for every industry.
Modular Office Buildings
Unified Modular offers state-of-the-art modular office buildings designed for flexibility, fast deployment, and long-term use. Whether you need a portable office building for a remote site or a permanent modular structure for your business, our solutions are cost-effective and completely customizable.
- Perfect for business expansions, job site headquarters, or temporary workspace
- Fully finished interiors, HVAC, lighting, and ADA compliance
- Quick delivery and setup throughout California
Looking to buy? Ask about our modular offices for sale and used portable office buildings for even greater savings.
Construction Trailers & Job Site Offices
We supply durable, fully outfitted construction trailers and job site offices to keep your project running smoothly. Whether for meetings, admin, or storage, these mobile units are built to meet the unique demands of construction environments.
- Includes HVAC, lighting, power, and secure doors
- Rapid delivery to any job site in California
- Available for short- or long-term rental
Popular search terms: construction trailer rental, job site trailers, mobile modular construction offices.
Used Modular Buildings for Sale
Save even more with our wide selection of used modular buildings. Every unit is thoroughly inspected, professionally refurbished, and ready for immediate use.
- Used office trailers for sale at discounted rates
- Used modular classrooms and DSA-approved educational units
- Delivery and setup included
This is a great way to get high-quality modular space quickly — without breaking your budget.
Modular Classrooms
Our DSA-approved modular classrooms are a smart, efficient choice for growing schools, charter academies, and districts. Designed to meet California education standards, these units are ready to support students and teachers with minimal disruption.
- Available in single- or multi-classroom configurations
- Technology-ready, climate-controlled, and code-compliant
- Delivered fast, installed cleanly
We provide portable classrooms for sale, modular school buildings, and school portables that scale as your enrollment grows.
Portable Modular Buildings
Our portable modular buildings are flexible enough to serve any purpose — from healthcare stations and government offices to retail pop-ups and secure storage. Built to meet your exact needs, these units are relocatable and reconfigurable.
- Modular restrooms, flex space, ramps, storage containers, and more
- Designed for efficiency, compliance, and reusability
- Short-term or permanent use options available
Common searches: portable office trailers, portable office space, mobile modular containers.
Serving Southern California and Beyond
From our base in Corona, CA, we serve the entire Inland Empire, along with Los Angeles, Orange County, Riverside, San Bernardino, and San Diego.
- Local permitting and compliance experts
- Full-service setup and project support
- Trusted by schools, contractors, and government agencies
Let Unified Modular handle your next modular construction project — efficiently, affordably, and locally.
Frequently Asked Questions
How long does it take to install a modular building?
Most modular buildings can be delivered and installed within 2–4 weeks, depending on size and site conditions.
Are your classrooms DSA-approved?
Yes. All modular classrooms meet California’s Division of the State Architect (DSA) standards for public school buildings.
Can I lease or rent instead of buying?
Absolutely. We offer both short-term rentals and long-term leasing options for most modular units.
📞 Let’s Build Something Together
Ready to discuss your project? Call (833) 425-2777 or email info@unifiedmod.com and let’s get started.