Service Area
St James
Construction Supply Products
St James Construction Supply: Elevate Your Building Projects with 9 Brothers Building Supply
At 9 Brothers Building Supply, we are your premier destination for top-quality St James construction supply products, meticulously curated to cater to the demands of residential and commercial projects alike. Whether you're a DIY enthusiast or a seasoned contractor, our extensive inventory and unwavering commitment to excellence ensure that we have the perfect materials and solutions to support your construction ventures.
Discover Our Comprehensive Range of St James Construction Supply Products
ADA Solutions: Ensure compliance with accessibility standards using our range of ADA-compliant products, including ramps, detectable warning surfaces, and more, designed to enhance safety and accessibility.
Concrete Compounds & Chemicals: From sealers to curing compounds, our concrete chemicals are formulated to enhance durability and resilience, ensuring longevity and performance in your concrete projects.
Concrete Forms & Accessories: Achieve precision in concrete work with our variety of forms and accessories, crucial for efficient and accurate concrete pouring and finishing.
Concrete Mix: Choose from our selection of high-strength concrete mixes, perfect for foundations, driveways, and specialized structures, guaranteeing strength and durability in every application.
Vapor Barriers: Safeguard your buildings from moisture damage with our effective vapor barrier solutions, essential for maintaining structural integrity and preventing moisture infiltration.
Egress Products: Ensure safety and compliance with our egress products, including window wells, covers, and escape ladders, designed to provide secure emergency exits.
Geotextiles & Drainage Materials: Manage water flow and soil stability with our geotextiles and drainage materials, addressing drainage issues and enhancing construction site health.
Lumber Yard: Explore our high-quality lumber selection, available in various grades and sizes, ideal for framing, decking, and general construction purposes.
Steel Products: Find robust steel products like rebar and structural steel, essential for projects requiring strength and stability, including concrete reinforcement and framework construction.
Swimming Pool Building Materials: Discover essential materials for pool construction, including pool rebar, forms, and waterproofing products, ensuring durable and aesthetically pleasing swimming pools.
Safety Equipment: Prioritize worksite safety with our comprehensive range of personal protective equipment (PPE), safety harnesses, and gear to safeguard your workforce.
Styrofoam Insulation: Enhance energy efficiency with our Styrofoam insulation products, perfect for insulating foundations, walls, and roofs, reducing energy costs and improving building comfort.
Tools & Hardware: Equip yourself with essential tools and hardware for efficient construction work, from hand tools to power tools, ensuring readiness for any task.
Waterproofing Materials: Protect structures from water damage with our waterproofing membranes, coatings, and sealants, designed for long-lasting protection and structural integrity.
Visit Us for Expert Guidance and Quality Products
Visit our Setauket-East Setauket location to explore our complete range of St James construction supply products firsthand. Our knowledgeable staff stands ready to provide expert advice and tailored recommendations to meet your specific project needs. At 9 Brothers Building Supply, we are dedicated to helping you achieve construction excellence with our premium products and exceptional customer service.
Why Choose 9 Brothers Building Supply?
- Quality Products: We stock only the highest quality materials from trusted brands.
- Wide Range: Our extensive inventory meets diverse project requirements and design preferences.
- Expert Guidance: Count on our experienced team for reliable advice and support.
- Competitive Pricing: Enjoy competitive prices on premium products to fit your budget.
- Customer Satisfaction: We prioritize a seamless shopping experience and your satisfaction.
Trust 9 Brothers Building Supply for all your St James construction supply needs. Let us assist you in bringing your construction projects to fruition with top-tier products and unmatched service.
St. James, NY is located in Suffolk County on Long Island

Service Area
All Authentic
Construction Supply Products
Services
We’ll help you through the process
Forklift Service
a mini crane service for tight or hard to reach delivery spots!

Delivery Service
with our fleet of ready to haul trucks anywhere on Long Island, NYC & 5 Boroughs

Consult Us
to build your dream backyard, driveway, landscape, pool, or patio!
Delivery across Long Island, NYC, and the 5 boroughs
Construction Site Delivery
Local Pickup
Home Delivery
Contractor & Local Business Deliveries
Send us a Message
Stop in or get in touch!

70 Comsewogue Rd SUITE 9 Setauket-East Setauket, NY 11733 Phone: (631) 928-4665