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Your Trusted Construction Partner in Riverside, CA
Stilwell Construction has dedicated over three decades to delivering high-quality commercial, industrial, and medical construction services across Riverside County and Southern California. Our team combines the expertise of a large firm with the personalized attention that distinguishes us in the industry. We specialize in projects ranging from ground-up buildings to tenant improvements, ensuring each is completed on time, within budget, and to the highest quality standards. Our pre-construction services streamline plan approvals and permit acquisition, while our risk management approach ensures smooth project execution. With a proven track record in Southern California, we maintain strong relationships with government agencies and utility providers to facilitate efficient project delivery.

Our commitment to client satisfaction is reflected in our ability to handle small-scale renovations to large manufacturing facility upgrades. Testimonials from long-term clients highlight our professionalism, reliability, and ability to exceed expectations. We pride ourselves on transparent communication, competitive pricing, and a focus on building lasting partnerships through exceptional service. Our mission remains centered on enabling clients to achieve their vision through expert construction solutions. For over 30 years, we have consistently delivered projects that clients can take pride in for decades.
Services
Ground-up Projects Tenant Improvements Medical Facilities Complete Remodels Building Retrofits
Highlights and features
  • We have over 30 years of experience in commercial and industrial construction.
  • Our team specializes in medical facilities and complex retrofit projects.
  • We guarantee on-time and on-budget project completion.
  • We maintain high-quality standards recognized across Southern California.
  • We offer tailored pre-construction planning and risk management services.
What people say
Highest quality standards Successfully completed projects Exceeded expectations Professionalism and thoroughness Smooth project execution
Services
Ground-up Projects
We specialize in constructing new commercial and industrial buildings from foundation to finish. Our process includes site preparation, structural development, and systems integration while adhering to strict timelines and budgets. Clients benefit from our comprehensive project management and code compliance expertise.
Tenant Improvements
Our team transforms existing spaces to meet specific business needs through customized tenant improvements. We handle everything from layout modifications to mechanical upgrades, ensuring minimal disruption to ongoing operations. Our focus remains on creating functional, code-compliant environments that enhance productivity.
Medical Facilities
We build and renovate medical clinics, procedure centers, and specialized healthcare spaces with precision. Our work meets stringent regulatory requirements while prioritizing patient safety and operational efficiency. Clients receive facilities designed for both immediate functionality and long-term adaptability.
Complete Remodels
From outdated manufacturing plants to modern office spaces, we execute comprehensive remodeling projects that revitalize structures. Our approach balances aesthetic upgrades with structural integrity improvements, delivering spaces that align with current industry standards and client expectations.
Building Retrofits
We enhance existing buildings with energy-efficient systems, seismic reinforcements, and code-compliance modifications. Our retrofits improve functionality while extending the lifespan of commercial properties. Clients receive cost-effective solutions that maintain operational continuity during upgrades.
Questions
What types of construction projects does Stilwell Construction handle?
We specialize in commercial, industrial, and medical construction projects including ground-up buildings, tenant improvements, and building retrofits across Southern California.
How long has Stilwell Construction been in business?
Our team has over 30 years of experience delivering construction solutions in the Inland Empire and surrounding Southern California regions.
Do you work on large-scale industrial projects?
Yes, we've completed projects ranging from 5,000 sq. ft. office remodels to 55,000 sq. ft. manufacturing facility upgrades with equal attention to detail.
What areas do you serve?
We provide construction services throughout the Inland Empire and all of Southern California, with a strong local presence in Riverside County.
How do you ensure project timelines are met?
Our proven project management approach includes detailed pre-construction planning and risk mitigation strategies to guarantee on-time delivery.
Can you handle medical facility construction requirements?
Yes, we have extensive experience building and renovating medical clinics, procedure centers, and healthcare facilities that meet strict regulatory standards.