About Double J Masonry
Building trust, crafting beauty, and strengthening communities since 1987. A family-owned masonry company serving Long Island and Suffolk County with precision, integrity, and unwavering dedication to excellence.
- 30+ Years of Experience
- Lake Ronkonkoma, NY
- 30+ Years of Experience
- Lake Ronkonkoma, NY
Who We Are
About Double J Mason
At Double J Masonry, we’re not just in the business of laying bricks and stones we’re in the business of building trust, crafting beauty, and strengthening communities.
As a family-owned and operated masonry company rooted in Lake Ronkonkoma, NY, we take immense pride in the craftsmanship, reliability, and integrity we bring to each and every job.
Founded in 1987, Double J Masonry has served Long Island and Suffolk County for over 30 years, becoming a respected name in residential and commercial stone and brickwork.
Where Quality Work Meets Honest Values
Our Values & Approach
Our reputation is built on a foundation of precision, strong ethics, and unwavering dedication to excellence.
Integrity
We believe in honesty and transparency. From the first site visit through project completion, we keep clients informed and involved.
Craftsmanship
We never cut corners. Every joint, brick, and stone is installed with exacting standards and attention to detail.
Respect
We treat your property, your time, and your vision with the utmost respect.
Reliability
We commit to schedules, budgets, and promises and we deliver.
Safety
Our crew follows strict safety protocols to protect both workers and your property.
Sustainability
We use recycled or responsibly sourced materials and suggest energy-efficient masonry options suitable for Long Island's climate.
Why Choose Us
Why Choose Double J Masonry?
Experience You Can Trust
Over our many years in business, we've tackled everything from subtle repairs to full commercial builds. Whether it's restoring an old brick chimney, installing an elegant stone veneer, or constructing a large façade, our team has the depth and breadth of experience to deliver.
Local Expertise & Care
We live and work here. We know Lake Ronkonkoma, Ronkonkoma, Bohemia, Centereach, Holbrook, and all of Suffolk County. That means faster response times, better knowledge of local permit processes, and materials that are proven in your neighborhood.
Client-Focused Service
Every project starts with listening. We take time to understand your goals, budget, and timeline. We lay out options from cost-effective to premium so that you can make informed decisions.
Commitment to Quality
We partner with trusted suppliers and use masonry materials built to last. We monitor every phase of your project excavation, foundation, stone/brick laying, finishing for consistency, strength, and beauty.
Driven by Quality. Guided by Integrity.
Our Mission
Our mission is simple yet bold: To provide superior masonry services that stand the test of time. Every wall, façade, pathway, and feature we build is designed not only to look beautiful but to resist weather, shift, and aging.
From the first stone laid to the final cleanup, we pursue excellence. Our aim is to exceed your expectations and to leave behind work that brings pride, durability, and beauty to your property in Lake Ronkonkoma and beyond.
What We Do
Our Services
Local focus with services designed for Suffolk County’s unique environment
Residential Brick & Stone Repair
We believe in honesty and transparency. From the first site visit through project completion, we keep clients informed and involved.
Stone Veneer & Decorative Stonework
Elegant veneers that hold up to Suffolk County's climate
Patios, Walkways & Hardscaping
Outdoor living spaces built for freeze-thaw cycles
Retaining Walls & Structural Masonry
Engineered walls to manage slopes, drainage, and ground pressure
Commercial & Institutional Projects
Multi-unit buildings, storefronts, community centers
Climate-Specific Solutions
Designed for drainage, soil movement, salt air effects, and thermal stress
Built for Our Community
Community & Local Roots
As a Lake Ronkonkoma business, we believe in giving back. We’ve contributed masonry work to local nonprofit projects, schools, and community centers. We support local suppliers and craftsmen.
We treat every project — small or large — as a way to strengthen the fabric of our community.
When you hire Double J Masonry, you're not just getting a contractor you're investing in the care, reputation, and future of your own neighborhood.
Ready to Start Your Project?
Let’s discuss your masonry needs and bring your vision to life with quality craftsmanship you can trust.