Interstate - Premier Building Materials
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Its simple logic, if our contractors are successful, so are we. We’re not looking to be the biggest. The way we do it is to prove that they can depend on us.”
For over 100 years, Fairfield & Westchester county Architects & Builders have trusted INTERSTATE to supply building materials & custom millwork for the area's finest homes. Our ability to offer thorough, attentive service to our industry customers comes from:
* an extensive selection of materials, including the latest in lumber, engineered wood products, millwork and tools;
* quality products in a wide range of pricing;
* eight locations that put us close to just about any work site in our market;
* stocking, warehousing and delivery systems that are right at the technological edge of the business;
* service oriented, knowledgeable people, with an average of 15 years industry experience;
Our commitment to our customers is summed up by our President, Sheldon Kahan, “Customers who work with us come to know that we regard our relationships as partnerships. The quality of our product mix,
the extent of our services and our competitive pricing reflects this attitude and commitment. We want to create a good, strong following among contractors and developers.
10/02/2026
The beauty you see starts with what’s behind the walls 🔨
For this project, INTERSTATE provided the framing materials that helped create the structure behind this one-of-a-kind space.
From the curved details to the custom architectural elements, precision at the framing stage sets the foundation for exceptional design.
10/02/2026
Sliding doors paired with Centor North America screens make it easy to open up your space while keeping comfort and functionality in mind.
Enjoy expansive views, fresh air, and a clean, unobstructed look when the screens aren’t in use!
09/02/2026
Holding onto those last Dog Days of Summer, nothing beats a cozy nap surrounded by large views of the great outdoors. We've got lots to do in the office and at the job site, but we think this pooch has the right idea!
This living room space was designed by Beinfield Architecture PC, and built by Milton Development using Modern Marvin windows, supplied by INTERSTATE!
08/31/2026
Starting this week with a huge thank you to the amazing builders who work tirelessly to bring so many homes to life. It's only thanks to their efforts from sunrise to sundown that so many families can enjoy their Dream Homes. So hard hats off to the builders!
08/28/2026
At the INTERSTATE Custom Millshop, there's nothing better than working with truly talented architects, builders and designers to bring their visions to life. And the experts at Charles Hilton Architects are some of the best in the business. The Custom Millshop developed this breathtaking Poolside pergola full of custom moulding, columns, lattice millwork and so much more. Swipe to see the original design drawing!
Photo by Robert Benson Photography
08/17/2026
How do you enhance a home's look while also creating more room and bringing natural light into the house? You do it with an expertly built rounded dormer. Upgrade your next project with timelessly elegant architectural millwork elements crafted at the INTERSTATE Custom Millshop. See how a rounded dormer gets made and gets ready for installation. Find out how the INTERSTATE Custom Millshop can be your Partner in Perfect!
08/06/2026
Built on a scenic hillside overlooking the Catskills, this modern home built by BuildLudo offers impeccable style and unparalleled views. This home was built with INTERSTATE materials, including the Iron Grey siding from James Hardie.
07/30/2026
Looking for the best quality building materials in all of Westport? Then you need to head straight to INTERSTATE, located right on the Post Road. Our state-of-the-art lumber yard is fully stocked with, framing lumber, Pressure Treated Wood, subflooring, exterior Versatex trim. Then head over to our Design Center to see the absolute best in windows, door, architectural hardware and moulding. It's all at INTERSTATE in Westport!
Earlier this summer, INTERSTATE brought out a great group of expert builders to the TruStile Doors facility in Denver! Enjoy this look at how TruStile Doors are constructed, and why they're the perfect Interior Door for your next construction or renovation project. Head to our Design Centers in Westport, Greenwich, and Shrub Oak to see a wide variety of TruStile door samples!
Video by
07/20/2026
Scroll through to see this home transformation from builder Tommy Lametta. To bring this modern architecture makeover to life, INTERSTATE supplied Cedar Beveled siding, Marvin Ultimate Windows, interior primed doors, and Simpson Door Company exterior door. Get ready to build your dream home with premier building materials from INTERSTATE.
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Website
Address
184 S Water Street
Port Chester, NY
06830
Opening Hours
| Monday | 7am - 5pm |
| Tuesday | 7am - 5pm |
| Wednesday | 7am - 5pm |
| Thursday | 7am - 5pm |
| Friday | 7am - 5pm |
| Saturday | 8am - 12pm |
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