Professional Performance. Proven Experience.

Engineered by industry veterans with decades of field-tested expertise – built for real jobsite performance.

  • Kitchen and Bath

    Durable 100% silicone sealant performance built for kitchens, baths, showers, plumbing, and all high-moisture areas.

    SHOP INTERIOR 

  • Window, Door & Siding

    Engineered for real jobsite conditions — delivering weatherproof protection, UV stability, flexibility, and long-term adhesion on today’s most common building materials.

    SHOP EXTERIOR 

  • Roofing, Flashing & Trim

    Tough, weather-ready performance from the top down. Designed for maximum adhesion, UV resistance, and long-term durability on shingles, flashing, trim, vents, and roof penetrations.

    SHOP ROOFING 
SHOP ALL PRODUCTS

Delivered Direct — By the Case, When You Need It

Get professional-grade sealants shipped to your jobsite, warehouse, or home with fast, reliable delivery and no distributor markup. Order by the case and keep your crews stocked and working.

Performance Delivered Direct™

Pallet orders ship shrink-wrapped;
smaller orders ship in protective Legacy Pro master cartons. Your sealants
arrive clean, intact, and jobsite-ready — every time.

How Much Can You Save?

A Note From Our Founders

Legacy Sealants is the continuation of a family story that began in 1966 with OSI – a brand our family helped build into a trusted name among professional contractors.

After years leading companies across the building materials industry, we’ve returned to our roots with a renewed focus on what matters most: delivering performance that stands up to real jobsite conditions.

With Legacy Pro™, our commitment is simple:

Professional-grade products, engineered from real-world experience, delivered direct without the middleman markup.

Whether you’re a contractor, builder, or project manager, Legacy Pro was created to give you reliable performance, trusted quality, and a smarter way to buy.

Thanks for your trust,

– Pete & Mark Longo

Co-Founders,
Legacy Sealants, Inc.

Read Our Story

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