Home Remodeling
and Renovation
Contractors

REQUEST AN ESTIMATE

Our Services

New Construction

New Construction

Custom-built homes with quality craftsmanship and attention to detail

Remodels & Renovations

Transforming spaces with expert design and superior workmanship.

Kitchen & Bath

Stylish, functional upgrades for your most-used spaces

View All Services

Portfolio

We take pride in bringing our clients’ visions to life with quality craftsmanship
and attention to detail. Your satisfaction is our top priority!

Explore Our Projects

View Portfolio

ABOUT US

How Are We Different From Other Long Island Remodeling Contractors?

We Get The Job Done RIGHT The FIRST Time!

Experienced & Passionate Craftsmanship

With over 25 years of experience, childhood friends Sean McCormick and Jed Kenedy built Great South Bay Home Improvements on a foundation of passion, dedication, and customer-first service.

Hands-On Project Management

An owner is always on-site, ensuring clear communication, seamless coordination with subcontractors, and meticulous attention to every detail from start to finish.

Customer Satisfaction & Quality Commitment

We prioritize your experience from the first consultation to the final walk-through, with a commitment to quality, transparency, and lasting client relationships. Your satisfaction is our greatest referral!

“Working with Sean and Jed at Great South Bay Home Improvements was the best decision we made for our home renovation. From start to finish, their communication, attention to detail, and craftsmanship were outstanding. They treated our project as if it were their own home, and the results exceeded our expectations. Highly recommend!”
Lisa & Mark R.
Sayville, NY
“Sean and Jed turned our vision into reality! Their team was professional, reliable, and incredibly skilled. They kept us informed every step of the way and made the entire process seamless. We couldn’t be happier with our new kitchen and bath. Thank you, Great South Bay Home Improvements!”
James & Emily T.
Bay Shore, NY
“Sean, Jed and team are the absolute best. They did a great job managing our project start to finish. They were always on time, cleaned up, and their work is impeccable. Highly recommend!”
Lenét V.
Bay Shore, NY
  • Our Process
  • Our Guarantee
  • Our Commitment

Our Process

From consultation to completion, we ensure a seamless experience with clear communication, hands-on project management, and attention to detail.
An owner is always on-site, overseeing every aspect to keep your project on track and on budget.

Our Guarantee

We stand behind our work with a commitment to quality, craftsmanship, and customer satisfaction.
Your project isn’t complete until you’re 100% happy with the results.

Our Commitment

With decades of experience and a trusted network of skilled professionals, we bring expertise and reliability to every job.
We treat every home as if it were our own, ensuring exceptional results that last.