The elite Asian factories are excellent at sales. We are excellent at production and customer support. That's the difference every dealer eventually pays for — one way or the other.— Founder, Meridian Window Systems

Meridian is not an importer of someone else's windows. We are a manufacturer — our specifications, our extrusion, our glass, our aluminum, our hardware, our powder coat — building across a controlled network of three plants: our own, plus two partner plants selected for what each one does best, with our team on site at every one. Australian aluminum. German thermal breaks. Dutch powder coat. British hardware.
Aluminum windows and doors specified across Horizon, Ascent and Summit — from smart-value production systems up to NFRC-certified high-performance builds. All fully custom, all built to your architect's dimensions.

Fixed, casement, awning, sliding and window wall — thermally broken 6063-T5 aluminum, all-tempered Low-E glazing, custom to the millimeter.
See the range
Sliding, multi-slide, casement and swing, and pivot — engineered for oversized openings, indoor-outdoor architecture, and the finish trades that install them.
See the range
The 4075 Series up to three tracks, and the TY120 up to six tracks when the whole wall needs to open.
See the systemsThe core window and door lines are offered across the three tiers — so the same architectural detail can be specified for a semi-custom volume build, a luxury custom home client, or a certified California project. Same catalog, same dealer, three thermal packages.
The production-ready workhorse. Thermally broken 6063-T5 aluminum with a polyamide strut — meets prescriptive code in Climate Zone 2, including Phoenix, Tucson, San Antonio, Austin and Houston.
High-performance premium line. Thermally broken 6063-T5 aluminum, polyamide thermal break, T40 Low-E, Roto locking with Coastal 316 stainless handles, built on our own line — the tier that wins most custom-home specs.
Summit is certified in two series. Summit West for California, Oregon and Washington; Summit Southwest for Texas, Arizona, Utah, New Mexico and Nevada. Both are tested to NFRC 100 and NFRC 200 by an accredited independent laboratory and listed in the Certified Products Directory, with the CPD number on every quotation line. Certified performance — proven, not claimed.
Where cheap-import windows fail your dealers is in the details you can't see from the outside. Here's what makes ours different — the reasons your customers will call you back for the next house.
Every container ships with full US duty paid and an accurate country-of-origin declaration. Nothing transshipped, nothing misdeclared, nothing under-declared — the story you tell your architect stands up to any tariff audit.
Every lite is tempered. Every unit meets U ≤ 0.40 / SHGC ≤ 0.25 with argon-filled, Low-E insulating glass as standard. No annealed-glass surprises on the safety-glazing walk-through.
Every unit is made to the opening, not picked off a size chart. Width and height to the millimeter across all three tiers, with shop drawings approved and signed before production is booked.
We are not reselling someone else's window. The extrusion, the glass, the thermal break, the hardware and the powder coat are specified by Meridian and built to those specifications at every plant we use.
Summit is tested to NFRC 100 and NFRC 200 by an accredited independent laboratory and listed in the Certified Products Directory. The CPD number prints on the quotation line, so a plan checker can verify it without calling us.
Product staged in San Antonio, Houston, and Chandler, AZ for direct dealer pickup. No hidden freight, no last-mile surprises. Your truck, or we can arrange delivery.*
* Delivery charge applies. Product held beyond a few days from receipt is subject to storage.
Data sheets and section drawings, brochures, the warranty and care guide, and per-order tracking. Open the library below; dealers get the rest inside the Dealer Portal.
Per-order status across extrusion, glass, powder coat, assembly, inspection, crating, transit, and delivery. Every stage timestamped, every document one click away.
See an example →A one-page data sheet for every product: head and sill section, U-factor and SHGC, sizes, glass by pane area and construction. View online or download the PDF; DWG on request.
Browse the library →A brochure for every series, ready to send to builders and homeowners. Dealer-branded flyers, showroom display files and the project photo library follow inside the portal.
View the brochures →Coverage by series, care and maintenance, and how to file a claim, in one document. Send photos and the unit mark; every claim is tracked to resolution.
Warranty & care guide →Pre-stocked kits of rollers, hinges, handle sets, weatherstrip, and setting blocks. Anything you don't stock — shipped from our local warehouse in days.
Kit contents + reorder →Broken lite on the jobsite? Send us the sheet number. We match glass to spec at a partnering local fabricator. No ocean wait, no back-order excuses.
How the program works →The elite Asian factories are excellent at sales. We are excellent at production and customer support. That's the difference every dealer eventually pays for — one way or the other.— Founder, Meridian Window Systems
Dealers and distributors in Texas, Arizona, Nevada, New Mexico, Utah and California. Architects and specifiers can work with Meridian directly on product data and pre-project consultation.
Horizon is the production series, built to meet prescriptive energy code in Climate Zone 2. Ascent is the premium series, with T40 Low-E glass and Roto locking with Coastal 316 stainless handles. Summit is the NFRC-certified series.
Summit, in two series: Summit West for California, Oregon and Washington, and Summit Southwest for Texas, Arizona, Utah, New Mexico and Nevada. It is tested to NFRC 100 and NFRC 200 by an accredited independent laboratory, and certification numbers are issued with each quotation.
Every Meridian window and door uses thermally broken 6063-T5 aluminum and all-tempered Low-E glass, built in custom sizes to the millimeter as standard.
Orders arrive duty-paid at the Meridian warehouse at 3232 N. PanAm Expressway, San Antonio, Texas, and every order can be followed in ClearView order tracking.
Apply through the dealer program page. Meridian is expanding its dealer network across Texas, Arizona, Nevada, New Mexico, Utah and California.
We're actively expanding our dealer network across Texas, Arizona, Nevada, New Mexico, Utah, and California. Factory-direct margins, live ClearView order tracking, and the technical support that keeps your best builders coming back.
Apply for Dealer Program