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WINDOWS & DOORS
Find the best brands for custom doors and windows at Riverhead Building Supply.
CABINETRY
For kitchens, home office, mud room and more visit a Design Showroom.
MOULDING
Choose from a vast selection of stock moulding materials and custom millwork capabilities.
TOOLS
A tool for every job, hand tools, power tools, cordless tools and accessories.
BUILDING MATERIALS
Lumber, drywall, roofing, siding, decking, flooring, masonry and much more.
ARCHITECTURAL HARDWARE
Riverhead Building Supply features quality door hardware from top brands to personalize each project.
MASONRY
Find top brands of pavers, bluestone, and natural stone.
HARDWARE
General hardware store items such as fasteners, connectors, electrical, plumbing, and more.

WINDOWS & DOORS

Find the best brands for custom doors and windows at Riverhead Building Supply.

BUILDING MATERIALS

Lumber, drywall, roofing, siding, decking, flooring, masonry and much more.

CABINETRY & KITCHENS

For kitchens, home office, mud room and more visit a Design Showroom.

ARCHITECTURAL HARDWARE

Riverhead Building Supply features quality door hardware from top brands to personalize each project.

MOULDING & TRIM

Choose from a vast selection of stock moulding materials and custom millwork capabilities.

MASONRY

Find top brands of pavers, bluestone, and natural stone.

POWER TOOLS

A tool for every job, hand tools, power tools, cordless tools and accessories.

HARDWARE

General hardware store items such as fasteners, connectors, electrical, plumbing, and more.

KITCHEN DESIGN CENTER

A lifetime of memories

Explore Our Kitchen Design Center

Established in 1948

Our mission has been to consistently provide our customers with
professional service, competitive pricing, and quality materials while
supporting our local communities and environment.

Store event calendar

See upcoming events in your area and meet brand reps to learn, touch and feel the latest building materials. Bookmark this page and check back often to see what’s happening.
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