A Partner Built for Your Growth.
We've been producing AAMA-certified vinyl profiles for the North American market for over 20 years — factory-direct, with a US-based team in Oakland, CA who understands your business and picks up the phone.
The value of a direct factory relationship isn't a single line item. It compounds — in your margins, your production reliability, your ability to respond to customers, and your capacity to grow.
Every layer between you and the factory costs money. Trading companies, importers, and distributors all add margin to reach you — margin that belongs in your business, not theirs. Buying directly from Weihui eliminates that intermediary cost entirely.
The savings compound with volume and become a meaningful competitive advantage over time. A manufacturer with factory-direct pricing can bid more competitively, protect their margins better, or invest the difference into their operation. Over years, that gap defines who grows and who doesn't.
Profile inconsistency has a real cost that doesn't always show up on a supplier comparison. When wall thicknesses drift, color varies batch to batch, or dimensional tolerances creep — your line slows down, your QC rejects increase, and your warranty exposure grows. These costs are invisible until they aren't.
Our AAMA-mandated Quality Management System, combined with at least two unannounced third-party factory inspections per year, keeps our production to spec order after order. When you plan your production around our profiles, you can count on what shows up in the container matching what you ordered.
Most Chinese extruders route all communication through an overseas team with no firsthand knowledge of your production environment, your codes, or your customers. When something needs solving, it gets forwarded, delayed, and lost in translation — and you bear the cost of that friction on your end.
Our Oakland, CA office gives you a US-based contact who understands the North American window industry and can address questions, issues, and orders directly — without an overseas relay for routine needs. That responsiveness isn't just a convenience. Over the course of a business relationship, it's the difference between a supplier that costs you time and one that saves it.
Most suppliers cap out at what they already make. If your business evolves — you want to add a casement line, develop an OEM profile for a specific market, or bring a custom design to production — you'd normally have to find another supplier and start the relationship over. We're built to move with you.
Our in-house tooling capability means you can develop profiles to your specification, own the tooling outright, and protect your product line from being replicated. We've done this with multiple North American customers and can guide you through the process from design to production. When you grow, the relationship deepens — it doesn't break.
Our American-series profiles are engineered specifically for North American window fabrication — not adapted from European lines. They're built for the codes, construction types, and production environments your business runs on, and support both new construction and retrofit applications across nail-on, flush fin, z-bar, and retrofit frame configurations.
Available in white and almond. Full spec sheets available on request.
View All ProductsSingle hung & sliding windows. In distribution across Southern California since 2005.
Casement and awning window profiles, built to North American performance standards.
Sliding patio door and French door profiles for residential and light commercial applications.
Custom and OEM profiles also available — ask us
We didn't enter the North American market last year. Our profiles have been distributed across Southern California — and beyond — since 2005. Some of the window manufacturers we're talking to today may already be running our extrusions without knowing the source.
That track record matters. It means we understand your codes, your construction cycles, what AAMA certification actually requires in practice, and what it takes to run a window fabrication line profitably. You're not onboarding us to the industry — we've been here.
Our AAMA designation FWH-1 is publicly listed in the FGIA Certified Profile Licensees Directory. It's verifiable by anyone — your customers, your architects, your inspectors. You don't have to take our word for it.
Tell us about your current setup. We'll give you a straight answer about whether we can help — and what that would actually mean for your business.