You want a home that feels like you—not a showroom. These five luxury interior design firms deliver that with white-glove service and a personal touch.
The State of Luxury Interior Design in 2026
Luxury interior design has moved beyond picking paint colors. Today's clients expect a seamless, concierge-level experience that manages everything from architectural coordination to final styling. Full-service firms now handle procurement, project management, and installation, so you don't have to lift a finger. The best studios blend creativity with precision, ensuring your space reflects your lifestyle and stands the test of time. With so many options, knowing what each firm truly offers is key to making a confident choice.
How We Evaluated These Firms
We looked at service scope, pricing clarity, local fit, and client experience. Each firm brings a distinct strength. Luxe Interiors by MG offers a rare blend of graphic and interior design expertise, with flexible packages like Designer for a Day and E-Design. Willetts Design shines in its thorough discovery process and integrated project management. Sara Lynn Brennan Interiors takes full ownership from start to finish, ensuring nothing is left incomplete. Duet Design Group emphasizes lifestyle and long-term functionality, backed by high client satisfaction. Katherine Mueller Design excels at coordinating complex luxury builds with architectural precision. No firm is better than another—it's about which approach aligns with your needs.
Here's a quick look at the five firms, their standout services, and who they serve best.
| Provider | Best For |
|---|---|
| Willetts Design | Clients who want a highly analytical and integrated design process |
| Luxe Interiors by MG | Those seeking flexible design services with a creative, personalized touch |
| Sara Lynn Brennan Interiors | Busy professionals who want a hands-off, fully managed experience |
| Duet Design Group | Homeowners who prioritize lifestyle-driven, functional design |
| Katherine Mueller Design | Clients undertaking new builds or extensive renovations |
A Closer Look at Each Firm
#1 Willetts Design
A screenshot of the Willetts Design website.
Willetts Design takes a strategic approach to luxury interiors, acting as your partner from concept to completion. Their discovery process digs deep into how you live, what you value, and what hasn't worked before. They document existing conditions with comprehensive measurements and lighting analysis, ensuring every detail is considered. As they explain in their guide to luxury services, full-service design in 2026 means managing dozens of moving parts. You get a seamless experience that elevates your daily life.
#2 Luxe Interiors by MG
A screenshot of the Luxe Interiors by MG website.
Luxe Interiors by MG is a luxury design firm rooted in passion, artistry, and inspired design. The studio offers full-service design, Designer for a Day, and E-Design, catering to both residential and commercial projects. With a background in graphic and interior design, MG brings a refined understanding of color, composition, and proportion to every space. As the website states, every home has a story to tell, and MG approaches each project as a one-of-a-kind creation. Whether you need a full renovation or a virtual refresh, you get personalized attention and a curated result.
#3 Sara Lynn Brennan Interiors
A screenshot of the Sara Lynn Brennan Interiors website.
Sara Lynn Brennan Interiors believes in going all in. Their full-service design package means they take ownership of your project from start to finish. They handle all the details, providing white-glove, concierge-level support. As they put it, when they're through, there will be nothing left for you to do. Their collaborative process ensures your home functions beautifully for your lifestyle. If you want a firm that drives the project and delivers a completely finished space, this is a strong contender.
#4 Duet Design Group
A screenshot of the Duet Design Group website.
Duet Design Group focuses on making your space work well and feel like you. They manage every part of the process, from floor plans to installation, with a strong emphasis on lifestyle and long-term goals. A 2023 Houzz report found that over 60% of homeowners who hired designers said results exceeded expectations, and full-service projects had the highest satisfaction. Duet's approach ensures your home not only looks beautiful but functions for years to come. They are a great fit if you value functionality as much as aesthetics.
#5 Katherine Mueller Design
A screenshot of the Katherine Mueller Design website.
Katherine Mueller Design excels at managing complex luxury projects with architectural coordination. Their full-service approach includes space planning, custom furniture, lighting design, and project management with builders. They guide you from initial concept to final installation, ensuring every detail is considered. As they explain, this comprehensive approach results in a home that feels intentional, cohesive, and deeply personal. If your project involves new construction or major renovations, their expertise is invaluable.
How to Choose the Right Firm for You
Start by defining your project scope. Are you furnishing a single room or renovating an entire home? Next, consider your involvement level. Some firms, like Sara Lynn Brennan Interiors, take full ownership, while others, like Luxe Interiors by MG, offer flexible options like Designer for a Day. Think about your budget and timeline. Full-service design is an investment, so ask about pricing structures upfront. Finally, review portfolios and read client testimonials to gauge fit. The right firm will listen to your story and bring it to life.
Streamlining Your Design Experience
Many luxury firms now use digital tools to streamline communication and project management. You might get a client portal to track selections, approvals, and deliveries. Virtual design services, like E-Design from Luxe Interiors by MG, allow you to collaborate remotely. These automations save time and reduce stress, making the design process smoother. Ask potential firms about their technology and how they keep you informed.
The Bottom Line
Luxury interior design is about more than beautiful rooms—it's about creating a space that supports your life. The five firms here each offer a distinct path to that goal. Willetts Design brings analytical rigor, Luxe Interiors by MG adds artistic flexibility, Sara Lynn Brennan Interiors provides complete project ownership, Duet Design Group focuses on lifestyle functionality, and Katherine Mueller Design specializes in architectural coordination. Your perfect match depends on your project and personality. Take the time to interview a few, and you'll find the partner who makes your vision a reality.