Constant Organization LTD – Commercial & Residential General Contractor and Construction Management for the Greater Chicagoland Area

Constant Organization is a premier general contracting firm
specializing in land development,
commercial/industrial and
residential construction.

Constant Organization Ltd

We are

Best Quality. Best Workmanship. Best Follow-up. Best Warranty.

"Constant" means "Quality"

Illinois and Wisconsin
Licensed General Contractor

Land Development
Commercial/Industrial
Residential

Services

Construction

Build with quality and integrity with Constant Organization, LTD

Get More Info

Commercial/Industrial

As a full service commercial construction management company, we have you covered from planning to completion. Our team offers clear and concise reporting and timeline tools to keep your project on time and on budget.

Learn More

Custom Luxury Homes

Constant Custom Homes had been building quality homes for over 50 years. Our processes is to bring you the luxury home that you deserve without all the worries and headaches. To learn more about our residential projects click here.

Learn More

Full Service Real Estate Development

From start to finish – that includes finding the right people for the job and breaking ground. We offer a variety of services to get you started whether you’re developing a commercial project or laying out the plans for your new home.

Learn More

Building On Our Legacy, Shaping the Future

Rooted in a proud history and driven by forward-thinking innovation, we bring the strength of our past into every project we build for the future.

BUILDING RELATIONSHIPS

OUR STORY

BUILD WITH CONFIDENCE

WHY CHOOSE US?

Choosing Constant Organization LTD means partnering with a contractor who values quality, transparency, and accountability at every stage of your project. We combine years of industry experience, working in the Chicagoland area, with a hands-on approach, ensuring every detail is managed with precision and care. In today's market, a dedicated team is needed to bring a concept to reality. Our team is committed to clear communication, reliable timelines, and craftsmanship that stands the test of time. We don’t just aim to meet expectations—we work hard to exceed them, delivering results you can trust and a building experience you can feel confident about from start to finish and Constant Organization will be with you every step of the way.

BUILDING RELATIONSHIPS

We believe strong projects are built on strong relationships. At the heart of Constant Organization LTD is a commitment to earning trust through honest communication, reliability, and respect. We take the time to truly understand our clients’ goals, because every successful build starts with listening. For us, it’s not just about completing a project—it’s about creating lasting partnerships with homeowners, businesses, and the communities we serve.

OUR STORY

Constant Custom Homes was founded by Constantine Silich in 1950 whose strong work ethic, integrity, and commitment to quality laid the foundation for everything we do today. He built the business on honest work, dependable service, and pride in craftsmanship. Today, his son, Donald, proudly continues that legacy through Constant Organization LTD, carrying forward the same values while bringing modern expertise and innovation to every project. It’s a tradition of excellence passed down through generations—built on quality, hard work, trust, and a dedication to doing the job right.

BUILD WITH CONFIDENCE

With years of hands-on experience in residential and commercial construction, we bring proven knowledge, craftsmanship, and attention to detail to every project. From planning through completion, we prioritize structural integrity, quality materials, efficient timelines, and clear communication. Our expertise allows us to anticipate challenges, deliver precise results, and maintain the highest standards of professionalism. Whether it’s a custom build or renovation, you can move forward with confidence knowing your project is in capable, experienced hands.