Ready to Start?
We build homes
that tell your story!
Our story goes back 50 YEARS!
A Family Legacy of Craftsmanship, Integrity & Service. GCI Construction is a second-generation, family-owned custom home building company with roots dating back to the 1970’s. Proudly serving New Hampshire, we’ve built our reputation on trust, hard work, and an unwavering commitment to quality craftsmanship. Our homes are constructed with standards and attention to detail not typically found in today’s new builds.
As lifelong Granite Staters, We understand the needs and values of New Hampshire homeowners. Whether building a 10,000-square-foot luxury estate or a well-designed starter home, they bring the same level of dedication, personal attention, and pride to every project.

Our team is the foundation of every home we build!
Built on Relationships, Driven by Excellence, our team of designers / architects, subcontractors and suppliers are what makes GCI Builders a leader in custom home building in New Hampshire & Massachusetts.
Chris Gagnon
Managing Member
With over 30 years of experience in the construction industry, Chris brings a unique blend of technical expertise and business acumen to every project. His background spans both high-end custom residential construction and large-scale commercial developments, allowing him to approach each build with a rare level of precision, versatility, and attention to detail. Since starting in the building world in 1992, Chris has personally overseen the construction of more than 50 homes across the New England market, earning a reputation for quality craftsmanship and dependable project delivery.
Chris holds a business degree and a Massachusetts Construction Supervisor License (CSL), and he combines this formal education with a lifetime of hands-on, in-the-field experience. His leadership is rooted in a builder’s mindset — focused on efficiency, long-term value, and excellence from concept through completion. Under his guidance, his companies have grown steadily, consistently meeting timelines, budgets, and exceeding client expectations. Chris’s depth of experience and proven track record make him exceptionally well-qualified to manage and execute successful construction projects of any scale.
Amy Sevigny Gagnon
Managing Member
Amy is the backbone of GCI Construction. With over 20 years of experience in business management and client relations, she plays a vital role in both the day-to-day operations and the client experience. Amy brings a rare blend of organization, creativity, and deep industry knowledge to every project ensuring that each phase, from selections to scheduling, is handled with precision and care.
Her expertise in managing timelines and navigating the design and selection process helps make the custom homebuilding journey smooth and enjoyable for every client. Amy is also responsible for overseeing internal operations, ensuring GCI runs efficiently and maintains the high standards the company is known for. Her dedication, professionalism, and approachable style make her an essential part of what sets GCI apart..
Team
GCI Partners
Over the past 30 years, we’ve cultivated a trusted network of the region’s top designers, architects, subcontractors, and suppliers—many of whom we’ve partnered with for decades. These long-standing relationships are the foundation of our success and a key reason why GCI Builders is recognized as one of the area’s premier custom home builders.
This collaborative network allows us to deliver exceptional craftsmanship, innovative design solutions, and a seamless construction experience. Because we work with only the most skilled and reliable professionals in the industry, our clients benefit from a team that shares our high standards, commitment to quality, and passion for bringing dream homes to life.
Our deep industry connections don’t just give us a competitive edge—they ensure your project is built with the finest materials, by the most capable hands, and with the attention to detail your home deserves.
