About Trinity Design Build
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Building Exceptional Spaces Across Phoenix With Honesty, Integrity & Reliability
At Trinity Design Build, we believe great construction is about more than building structures. It’s about building trust, lasting relationships, and spaces that improve the lives of the people who use them every day.
As a family-owned residential and commercial contractor based in Phoenix, Arizona, Trinity Design Build specializes in custom homes, home additions, renovations, remodeling, tenant improvements, and commercial construction projects. From concept and design through final walkthrough, every project is approached with meticulous attention to detail, quality craftsmanship, and a commitment to doing things the right way.
Whether you’re building a custom home, transforming an existing property, or creating a functional commercial space, our mission remains the same: deliver exceptional results while providing an experience built on transparency, communication, and trust.
Integrity
Reliability
Honesty
Meet Gavin, Owner of Trinity Design Build
Great construction starts with great relationships. That’s the philosophy Gavin has built Trinity Design Build on throughout his nearly 20 years in the construction industry.
Raised as a missionary kid in the Philippines, Gavin learned early the value of service, integrity, and putting people first. Today, those same principles guide every project Trinity Design Build takes on. Whether it’s a custom home, major renovation, home addition, or commercial improvement, Gavin is committed to delivering quality craftsmanship, transparent communication, and a construction experience built on trust.
As a husband, father, grandfather, and business owner, Gavin understands the importance of creating spaces that serve families, businesses, and communities for years to come. Beyond construction, he serves on the board of i6eight and actively supports organizations dedicated to building homes and improving lives both locally and abroad.
His hands-on approach, commitment to excellence, and dedication to Honesty, Integrity, and Reliability have earned Trinity Design Build a reputation as a trusted partner throughout the Phoenix area. When you work with Trinity Design Build, you’re working with a team that values your project as much as you do.
Meet The Team
Kelly Miller,
Operations Manager
Jodi L Wylie-Posey,
Business Manager
Integrity
Reliability
Honesty
Residential & Commercial Construction Done Right
Trinity Design Build provides complete residential and commercial construction services throughout Phoenix and the surrounding communities.
- custom homes
- custom homes
- kitchen remodeling
- bathroom remodeling
- whole home renovations
- outdoor living spaces
- specialty rooms designed around your lifestyle and vision.
- we deliver tenant improvements
- office build-outs
- medical office construction
- retail renovations
and customized commercial spaces that help businesses operate efficiently and professionally.
No matter the size or complexity of the project, our team is committed to providing exceptional workmanship and a seamless construction experience from start to finish.
A Client-First Approach To Construction
What truly sets Trinity Design Build apart is our commitment to people.
We believe every successful project starts with listening. That’s why we take the time to understand your goals, priorities, budget, and vision before recommending solutions. Through honest communication, transparent pricing, and clear expectations, we create a collaborative experience that keeps clients informed and confident throughout the entire process.
Our goal isn’t simply to complete a project. It’s to build long-term relationships and become the contractor clients trust for years to come.
Built On Family Values
As a local family-owned business, family is at the center of everything we do.
Gavin and his wife Valerie have built Trinity Design Build around the same values that guide their home life: honesty, accountability, respect, and reliability. These principles shape how we treat clients, manage projects, and serve our community.
We understand that construction projects are significant investments, which is why we approach every project with the same care and attention we’d expect for our own family.
More Than Construction
At Trinity Design Build, we believe construction should make a positive impact both on and off the job site.
Through Gavin’s involvement with organizations such as i6eight and The Clearwater Project, Trinity actively supports efforts to build homes for families in need and provide access to clean water for underserved communities.
This commitment to service influences how we approach every project. We believe great construction is about more than beautiful spaces. It’s about creating lasting value and making a meaningful difference in the lives of others.
Let's Build Something Exceptional
Whether you’re planning a custom home, home addition, renovation, commercial build-out, or remodeling project, Trinity Design Build is ready to help bring your vision to life.
Contact our team today to schedule a consultation and discover the difference that honesty, integrity, and reliability can make in your next project.