• Why Choose Us
01
Building Science Expertise
We prioritize your family's well-being by integrating advanced building science principles, ensuring healthier indoor air quality, clean water solutions, and abundant natural light in your renovated home.
02
Transparent Project Management
Experience complete peace of mind with our JobTread project management software, providing you with real-time updates, budget tracking, and clear communication throughout your renovation journey.
03
Collaborative Design Process
Whether you have an architect in mind or need connections to trusted local designers, we foster a collaborative environment to bring your unique vision to life with precision and care.
04
Dual-State Licensed
As a fully licensed general contractor in both North Carolina and South Carolina, we offer comprehensive, compliant, and high-quality renovation services right here in the Lake Norman area.
05
New-Build Quality in Every Detail
We apply the meticulous craftsmanship and superior material standards typically reserved for new custom homes to your renovation, ensuring lasting beauty and exceptional performance.

• Our Services
01
Whole-Home Renovations
Imagine your entire Ballantyne residence reimagined with a cohesive design and enhanced functionality. Our whole-home renovations transform your living space, optimizing every room to reflect your personal style and meet your evolving needs.
02
Kitchen Remodels
Elevate the heart of your Fort Mill home with a custom kitchen remodel. We design and build culinary spaces that blend sophisticated aesthetics with optimal functionality, tailored to your lifestyle.
03
Bathroom Renovations
Indulge in a luxurious and serene escape with a bespoke bathroom renovation. We craft spa-like environments that combine elegant finishes with practical design, enhancing your daily routine.
04
Healthy Home Upgrades
Invest in your family's well-being with healthy home upgrades focused on indoor air quality, advanced ventilation, non-toxic material selection, and maximizing natural light for a truly restorative living environment.
• How We Work
01
Consultation
We begin by listening intently to your vision, understanding your aspirations for your Ballantyne home, and discussing the possibilities for your renovation project. This initial conversation sets the foundation for a successful partnership.
02
Planning / Inspection
Our team conducts a thorough inspection of your property and develops a detailed plan, including design concepts, material selections, and a transparent budget. We ensure every aspect aligns with your goals and our commitment to excellence.
03
Execution
With meticulous attention to detail and superior craftsmanship, our skilled team brings your renovation plans to life. We manage every phase of construction, ensuring quality and efficiency while keeping you informed through JobTread.
04
Final Check / Delivery
Upon completion, we conduct a comprehensive final walkthrough to ensure every detail meets our rigorous standards and your complete satisfaction. We then proudly deliver your beautifully transformed Lake Norman home, ready for you to enjoy.

• Where We Build
Costner Building Group proudly serves the vibrant communities surrounding Lake Norman, including Mooresville, Cornelius, Huntersville, Denver, and Davidson, extending our commitment to quality renovations across Mecklenburg, Iredell, Lincoln, and Catawba counties.
Ballantyne
SouthPark
Waxhaw
Mint Hill
Charlotte, NC
Indian Land
Fort Mill
Rock Hill
Lake Norman
Mecklenburg County
Union County

• Local Expertise
Choosing a local renovation contractor like Costner Building Group for your Lake Norman project means partnering with a team deeply familiar with the area's unique architectural styles, local regulations, and climate considerations. Our proximity allows for highly responsive service and efficient project management, ensuring your renovation progresses smoothly. Being licensed in both North Carolina and South Carolina, we possess a comprehensive understanding of regional building codes and best practices, particularly important for adapting homes to the Carolina climate. We are your neighbors, committed to enhancing the beauty and functionality of our shared community.
• Client Stories
"
They listened, guided, and delivered exactly what we envisioned — only better. The craftsmanship is unmatched, and the home feels designed around our lives.
Homeowner, Charlotte NC
"
The transparency throughout the entire build was remarkable. We always knew exactly where our project stood. Costner Building Group exceeded every expectation.
Custom Home, Ballantyne NC
"
From the first consultation to move-in day, the team was professional, attentive, and genuinely cared about building us a healthier home. We couldn't be happier.
Custom Home, Waxhaw NC
• Get Started Today
Embark on your home renovation journey with Costner Building Group, your trusted partner for bringing new-build quality and thoughtful design to every project.
Book a Consultation• Common Questions
What types of home renovations do you specialize in around Lake Norman?
We specialize in high-end and luxury home renovations, including whole-home remodels, kitchen and bathroom renovations, and home additions. We also focus on healthy home upgrades for improved indoor air quality and energy efficiency.
Is Costner Building Group licensed to perform renovations in Mecklenburg County?
Yes, Costner Building Group is a fully licensed general contractor in North Carolina, including Mecklenburg County and the broader Lake Norman area, ensuring all our renovation projects meet local building codes and standards.
How long does a typical kitchen remodel take in the Lake Norman area?
The duration of a kitchen remodel varies based on scope and complexity. After our initial consultation and planning phase, we provide a detailed timeline. Our transparent project management keeps you informed every step of the way.
Can you help with energy-efficient upgrades for my Lake Norman home?
Absolutely. We incorporate energy-efficient solutions and healthy home improvements, such as advanced insulation, high-performance windows, and improved ventilation systems, to enhance your home's comfort and reduce utility costs.
Do you work with clients' existing architects or designers for Lake Norman renovation projects?
We integrate building science principles to enhance indoor air quality, ensure clean water, maximize natural light, and utilize non-toxic materials, creating a healthier and more comfortable living environment for your Lake Norman home.