Interstate - Premier Building Materials

Interstate - Premier Building Materials 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 pro

ducts 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.

Holding onto those last Dog Days of Summer, nothing beats a cozy nap surrounded by large views of the great outdoors. We...
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!

Starting this week with a huge thank you to the amazing builders who work tirelessly to bring so many homes to life. It'...
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!

At the INTERSTATE Custom Millshop, there's nothing better than working with truly talented architects, builders and desi...
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

How do you enhance a home's look while also creating more room and bringing natural light into the house? You do it with...
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!

Built on a scenic hillside overlooking the Catskills, this modern home built by BuildLudo offers impeccable style and un...
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.

Looking for the best quality building materials in all of Westport? Then you need to head straight to INTERSTATE, locate...
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!

07/23/2026

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

Scroll through to see this home transformation from builder Tommy Lametta. To bring this modern architecture makeover to...
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.

Take a look at this new house now under construction from Guiltec Development in Milford, CT. With high quality lumber, ...
07/15/2026

Take a look at this new house now under construction from Guiltec Development in Milford, CT. With high quality lumber, AdvanTech subflooring from Huber Engineered Woods, and Windows from Marvin, this home is shaping up strong! All these materials and more, at INTERSTATE.

Working with the INTERSTATE Custom Millshop means our craftsmen get to do what they do best. And when we're working with...
07/09/2026

Working with the INTERSTATE Custom Millshop means our craftsmen get to do what they do best. And when we're working with Gary Savitzky Architects, we know we're going to be helping to build something special. For this new home, the Millshop produced these gorgeous solid wood beams, giving these interiors that striking design flair. Reach out to the INTERSTATE Millshop to life to bring your design dreams to life!

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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