Now Representing Cornerstone Companies of Florida
J&M is proud to serve as the Architectural Representative for Cornerstone, bringing their world-class, impact-rated fenestration to architects and builders across the market.
Your Vision. Our Expertise. The U.S. Market.
We help premium window, door, and architectural product manufacturers enter, grow, and scale in the United States.
About Us
Built on Trust & Expertise
Everything we do is focused on building lasting partnerships between global luxury fenestration brands and the U.S. market — with integrity, strategy, and precision.
Learn MoreOur Services
Strategic Market Entry
From dealer network development to architect introductions, we provide a comprehensive suite of consulting services tailored to the luxury building industry.
Learn MorePremium Products
The Finest Materials
We source and connect clients with the world's most refined window, door, steel, aluminum, wood, and bronze fenestration systems.
Learn MoreU.S. Market Entry Consulting
We help international and domestic luxury brands understand the realities of the U.S. market and create a clear path for entry or expansion.
Explore All ServicesU.S. Market Positioning Strategy
Define how your luxury brand should present itself to the U.S. audience.
Regional Opportunity Analysis
Identify the states and metros with the strongest demand for your category.
Competitive Landscape Review
Understand who you're up against and where the white space sits.
Product-Market Fit Guidance
Align product lines with U.S. project types, codes, and buyer expectations.
Go-to-Market Planning
Build a clear, sequenced launch plan for a confident market entry.
Channel Strategy Recommendations
Choose the right dealer, rep, and distribution structure for durable growth.
Premier Fenestration Partners
A curated portfolio of world-class manufacturers we proudly represent, delivering luxury windows, doors, and architectural systems to the U.S. market.
Elevate Every Opening with World-Class Fenestration
We curate the finest luxury window and door systems, bringing architectural excellence and enduring quality to your most ambitious projects.