Custom Homes, Renovations
& Restorations
BUILT WITH INTEGRITY. MADE TO LAST.
ABOUT US
Cold Spring Harbor Construction is a premier custom home builder specializing in the construction, renovation, and restoration of fine homes throughout Nassau and Suffolk County. Founded by Long Island native Greg Marzuk, the company is rooted in a passion for authentic materials, exceptional craftsmanship, and thoughtful design.
We believe great homes are built through collaboration. Working closely with our clients and their architectural teams, we deliver tailored solutions that align vision, lifestyle, budget, and timeline. Transparency, communication, and attention to detail guide every phase of our process.
With deep local expertise and long-standing relationships with premier craftsmen and suppliers, we understand the unique demands of Long Island residential construction. From modern residences to historic restorations, our experienced team ensures every project receives professional care and uncompromising quality.
The result is a home of lasting integrity, value, and distinction. We invite you to meet with us and begin bringing your vision to life.
OUR SERVICES
Specializing in the Details
From new custom homes to whole-house renovations and historic restorations, we bring the expertise, care and precision to every project
CUSTOM HOME BUILDS
Tailored homes designed and built around your lifestyle, your vision and your property
RESIDENTIAL RENOVATIONS
Thoughtful updates, additions, and reconfigurations that elevate the way you live.
RESIDENTAL RESTORATION
Preserving the character of historic homes with the highest standards of craftsmanship.
01
CONSULTATION
We listen, learn, and explore the possibilities for your home
02
A Clear, Collaborative Approach
PLANNING & BUDGETING
Detailed planning and transparent budgeting set the foundation
OUR PROCESS
03
CONSTRUCTION MANAGEMENT
Expert craftsmanship and consistent communication every step of the way
04
FINAL DETAILS
We ensure every detail is perfect before we hand it over.
Testimonials
“Working with Cold Spring Harbor Construction was an incredible experience from start to finish. Their attention to detail, communications, and craftsmanship exceeded our expectations. Our home renovation was completed beautifully, and the entire process felt seamless and stress-free”
“The level of care and precision Cold Spring Harbor Construction brought to our project was unmatched. Every detail was handled thoughtfully and they kept us informed throughout the entire renovation. The finished result is beyond was we imagined.”
“When first starting the process of a major restoration project on our home, we met with Greg and knew that we wanted to work with him and his team. His expertise, honesty and dedication made all the difference. Our home feels brand new while still maintaining its original character and warmth”