Mannix Custom Builders

Mannix Custom Builders has been transforming Long Island's East End into a gallery of unique architectural design for 45 years.

Led by Principal Brian Mannix, his team of elite craftsmen specializes in building highly detailed residences from cottages to estates. Brian is joined by his son Kyle.

Honesty is a high priority in our business. That's why we make it a guiding principle in all we do. We're open, easy to work with, and most importantly, accessible. It's our job to listen to, and translate, our clients’ needs into a home that is built to withstand every season of life without compromising a personalized presence.


45 Years Experience

Our ability to customize each home we build opens a world of opportunity for satisfied homeownership. We strive to bring pride of ownership to the forefront, from each facade to every flowing square foot. With a background in architectural studies, Brian brings valuable design sense to every partnership, pairing his understanding of interior finishes and inventive approaches with his client’s vision, to achieve lasting results.

A highly experienced builder and now a family business, Mannix Custom Builders always delivers a home that exceeds its clients’ expectations.