Skip to content

About Us 

GTG Builders

Over 65+ years of Experience

At GTG Builders, we provide a full-service experience that’s tailored to each client’s needs and goals to build your perfect high-quality custom home. We are a second-generation design-build firm with over 65 years of experience, delivering a seamless home-building process. From acquiring land for your custom home and connecting you with a talented designer or architect to helping you define your budget and constructing your New Jersey custom home, we strive to make your building experience seamless and even enjoyable. 



Committed to Every Project

GTG Builders is so committed to each client’s experience that the owners themselves are involved in seeing every job through to completion. We care about your happiness in your home. GTG’s commitment to its clients does not end the day you move in, but continues for months, even years later.


The Client Is Our Priority

To show our dedication to our clients, we start with making sure we’re the best fit for your project. Gaining our clients’ trust through transparent communication and honest pricing is central to our success. Part of our transparency is through our insightful and educational blogs that explain our process, offer helpful tips, and give you information about every part of the custom home-building experience. 


Our Proven Success

The commitment GTG Builders dedicates to every project is shown in the awards we’ve received for our luxury custom homes in New Jersey. Every client receives our unparalleled level of professionalism and adaptation. 


1 | Design

Once you're ready for GTG to build your custom home, we pair you with an architect that's perfect for the job. We provide advice around design best practices and material selection to ensure your custom home is exactly as you envisioned.

2 | Construction

To make the construction process as smooth as possible, GTG Builders provides you with a dedicated construction team, regular on-site meetings, and access to our project management software. We also handle everything from inspections to permits.

3 | Post-Construction

After you've moved into your dream home, we're available to you no matter what. We'll check in regularly to be certain you're still enjoying your brand-new custom home. We're committed to your experience and the longevity of the custom home we've delivered.

Our Team

Second-Generation Custom Home Builders

The only way we can guarantee your satisfaction and hold our place at the top in the custom home builder market is simple - you deal only with the owners! We're here for you, 24 hours a day and 7 days a week before, during, and after your project is completed.

Andrew Giannattasio GTG Builders

Andrew Giannattasio

Andrew Giannattasio, a founding member of GTG Builders, is a recognized name in the local building and real estate industries. 

Paul Giannattasio GTG Builders

Paul Giannattasio

Paul Giannattasio is one of the founding partners of GTG Custom Home Builders. 

Bella Giannattasio GTG Builders

Bella Giannattasio

Bella Giannattasio guides the client through GTG’s home building experience.

Max Giannattasio GTG Builders

Max Giannattasio

Max Giannattasio joined the team in 2019 to ensure day-to-day operations run smoothly and meet GTG’s standards.


We build beautiful, luxury custom homes in Central New Jersey, including Hunterdon County, Somerset County, and Mercer County. Contact us to find out if we serve your area!

Our Service Area

Hunterdon County
  • Flemington
  • Raritan
  • Raritan Township
  • Delaware Township
  • East Amwell
Somerset County
  • Hillsborough
  • Franklin
  • Somerset
  • Montgomery
  • Skillman
Mercer County
  • Hopewell
  • Pennington
  • Princeton



GTG Builders Custom Home Houzz Awards
Award of Excellence Winner 2019 GTG Builders
Award of Excellence Winner 2020 GTG Builders
2021 Awards of Excellence Winner GTG Builders in NJ


Ready to Get Started?

Our Team is Here to Help


We’d love to learn about your custom home dreams and answer your questions. Contact us to schedule a consultation and let’s start planning your custom home journey.