Business Details
40 Years
experience
Custom Home Building & Remodeling Experts
Sonnenburg Builders has been serving Manitowoc County since 1986, delivering high-quality construction and remodeling solutions. Founded by Kevin Sonnenburg as a homebuilding company, we expanded into remodeling and additions in the 2000s while maintaining our commitment to craftsmanship and personalization. Our team collaborates closely with clients throughout every project phase, from initial visioning to final installation, ensuring tailored results that reflect individual needs.With a showroom for finish selections and a focus on minimizing project stress, we handle challenges like supply chain disruptions to maintain smooth timelines. Under Brad Sonnenburg's leadership since 2021, we continue prioritizing quality partnerships with subcontractors and suppliers to deliver exceptional outcomes.
Services
Kitchens
Baths
New Homes
Exteriors
Additions
Siding
Windows & Doors
Details
- Year established: 1986
Highlights and features
- Family-owned legacy since 1986 with hands-on owner involvement
- Integrated showroom for seamless finish selections
- Proven process minimizing project timeline disruptions
- Dedicated subcontractor partnerships ensuring quality control
- Full-service approach from design to final installation
Services
Kitchens
Transform your kitchen space with custom cabinetry, countertops, and layouts designed for functionality and style. Our team handles complete renovations from demolition to final installation, ensuring seamless integration with your home's architecture. Clients benefit from in-showroom consultations to select premium materials and finishes that match their vision and budget.
Baths
Modernize bathrooms with tailored shower/tub configurations, vanities, and lighting solutions. We specialize in accessibility upgrades and spa-inspired designs while maintaining structural integrity. The process includes coordinated plumbing adjustments and material selections through our physical showroom for cohesive aesthetic outcomes.
New Homes
Construct fully customized residences from foundation to final trim work. Our approach combines architectural planning with hands-on craftsmanship, offering clients direct involvement in design decisions. We manage all phases including permit acquisition, material sourcing, and subcontractor coordination to deliver energy-efficient, personalized living spaces.
Exteriors
Enhance curb appeal through siding replacement, window/door installations, and roofing upgrades. We use durable materials that withstand Wisconsin's climate while improving insulation efficiency. Projects include color consultations and architectural recommendations to boost property value through coordinated exterior aesthetics.
Additions
Create additional living space with room additions that seamlessly integrate with existing structures. Services cover foundation work, framing, and system extensions (HVAC/electrical) while maintaining code compliance. We provide structural engineering consultations and expansion design options tailored to property limitations and client needs.
People
Brad Sonnenburg
Owner
Brad Sonnenburg leads the company he inherited from his father, combining generational carpentry knowledge with modern construction practices. With hands-on experience since childhood and formal training, he oversees project execution while maintaining the quality standards established in 1986.
Kevin Sonnenburg
Founder
Kevin Sonnenburg established the company in 1986 after starting as an apprentice carpenter. His career spanning multiple decades built the foundation for the company's reputation in residential construction. Though retired, his craftsmanship principles continue influencing the company's approach to client projects.
Questions
What types of remodeling projects do you handle?
We specialize in kitchen and bathroom renovations, home additions, siding replacements, and window/door installations while maintaining our core new home construction services.
How does your project process work?
Our four-phase process includes vision consultation, customized estimating, showroom-based design finalization, and professional installation with regular client updates throughout each stage.
Do you work outside Manitowoc County?
While our primary service area is Manitowoc County, we evaluate projects in adjacent regions on a case-by-case basis depending on resource availability and project scope requirements.
Can I see material options before starting?
Yes, our Manitowoc showroom contains full product displays for countertops, cabinetry, fixtures, and finishes, allowing clients to make informed decisions before project commencement.
How are project timelines managed?
We provide estimated timelines during the design phase and proactively communicate adjustments caused by weather, material delays, or unforeseen structural issues while minimizing client disruption.
What warranty do you offer?
We provide a one-year limited warranty covering workmanship defects, with extended manufacturer warranties applying to specific materials like roofing, windows, and appliances we install.
