CALL US TODAY! +1 605 641-1691 or +1 605 641-0050
About Us
Our Commitment to Excellence
Ralph has dedicated over 30 years to the building industry, serving as an officer for state and local Home Builder Associations and as a Director of the National Association of Home Builders. In recognition of his contributions, he was inducted into the South Dakota Home Builder Hall of Fame in 2013. Jarod joined the Association in 2010, continuing the family tradition of excellence.
Siemonsma Construction
Our Story
Ralph began his journey in construction in 1973, shortly after graduating from Baltic High School. After marrying his high school sweetheart, Debbie, the couple moved to Ft. Lauderdale, Florida, where Ralph worked in asphalt and carpentry while attending Allstate Construction College. He later became a licensed General Contractor in Florida.
In 1990, Ralph returned to his roots, settling in Spearfish, South Dakota, to continue his construction career. His son, Jarod, joined him 20 years ago, contributing a meticulous eye for detail and mastering every phase of the business. Together, they have built a reputation as one of the top homebuilders in Western South Dakota.
Siemonsma Construction
What Sets Us Apart
At Siemonsma Construction, we’re committed to more than just building homes we’re committed to building trust. Here’s what makes us unique:
01
Hands-On Expertise
We are on-site daily, ensuring that every detail meets our high standards and guiding you through any change requests.
02
Superior Craftsmanship
Using the best materials and practices, we deliver homes that are both beautiful and built to last—all within your budget.
03
Trusted Teamwork
Our long-term partnerships with carefully selected subcontractors for electrical, plumbing, painting, and flooring ensure top-quality results.
04
Attention to Detail
From thoughtful design to precise execution, we focus on every detail to bring your vision to life.
