Global Architectural B2B White Paper

Custom OEM Aluminum Bathroom Windows Manufacturers & Suppliers

Precision Thermal Engineering, Advanced Privacy Glazing & High-Humidity Architectural Solutions for Enterprise Contractors & Wholesalers

Flagship Product Line

Featured OEM Aluminum Window & Door Systems

Engineered to international structural standards with certified thermal break performance and high-tensile alloy frames.

OUNA Luxury Aluminum Exterior Entry Doors
OUNA Luxury Aluminum Exterior Entry Doors for Houses Exterior Front Entry Doors CE ISO NFRC Certified
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OUNA Vertical Folding Window
OUNA Small Space Solution Aluminum Vertical Folding Window for Apartment Balcony Maximizes Usable Area and Brings in Breeze
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OUNA High Track Bi-Fold Door
OUNA NFRC High Track Bi-Fold Glass Wall Folding Patio Accordion Door Soundproof Modern Double Glazed Aluminum Foldable Door
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OUNA Aluminum Sliding Door
OUNA Aluminum Sliding Door Double Glazed Tempered Glass Balcony Patio Sliding Door Hurricane Impact Sliding Patio Doors
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OUNA Soundproof Aluminium Bi-Fold Door
OUNA SoundProof Aluminum Thermal Break Aluminium Bi-Fold Door Commercial Interior Sliding and Folding Doors System
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OUNA Glass Curtain Wall
OUNA Panoramic Glass Curtain Wall for Commercial Complex and Shopping Mall Attracts Customers with Transparent Modern Facade
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OUNA Arched French Doors
OUNA Custom Arched Aluminum French Doors Antique Design with Decorative Grilles for a Unique Vintage Style Home Entrance
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OUNA Intelligent Electric Lift Window
OUNA Modern Intelligent Electric Lift Aluminium Double-Paned Tempered Glass Window Sound Insulation Vertical Balcony Hanging
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Enterprise Authority

Chengdu Zenit Window & Door Co., Ltd.

A premier OEM/ODM manufacturing hub delivering structural excellence across global commercial and high-end residential developments.

25,000 m²
Modern Production Plant
$26M+
Annual Export Turnover
35
Dedicated QC Inspectors
42
R&D Structural Engineers

Global Market Reach & Logistics Capacity

Founded in 2015, Chengdu Zenit Window & Door Co., Ltd. operates a state-of-the-art 25,000-square-meter manufacturing facility. Backed by 11 years of deep industry expertise and 8 years of specialized global trade experience, our annual export turnover reaches $26 million. Our core market footprints encompass North America, Australia, and Western Europe, supplying tier-one residential home builders, architectural contractors, and multi-national building material distributors.

Macro Industry Solutions

Global Procurement Dynamics for Aluminum Bathroom Windows

Addressing high humidity, thermal bridge losses, structural airtightness, and architectural privacy in modern commercial projects.

Moisture Isolation & Anti-Corrosion

Bathroom environments represent demanding micro-climates high relative humidity, chemical cleaning agent exposure, and persistent steam condensate. Zenit’s custom OEM bathroom windows utilize 6063-T5 high-grade aluminum profiles treated with anodization (up to 25 microns) or PVDF fluorocarbon coatings, guaranteeing salt spray resistance past 3000 hours without profile degradation.

Dynamic Privacy & Natural Daylight

Achieving optimal light transmission while guaranteeing visual privacy is paramount in modern hospitality and multi-family design. OEM options include obscure frosted glass, textured reed patterns, and switchable Smart Polymer Dispersed Liquid Crystal (PDLC) privacy glass, allowing instant transition between clear and opaque states via smart automation systems.

Thermal Break Efficiency

Preventing thermal transfer and indoor surface condensation is critical. Utilizing continuous Polyamide PA66 nylon thermal barriers inserted into dual-cavity profiles, Zenit aluminum bathroom windows achieve impressive U-factors down to 0.28 BTU/h·ft²·°F, eliminating thermal bridging and mold spores on interior walls.

Technical Insight: Water Tightness & Seal Calibration

Quality control is strictly managed by our team of 35 certified inspectors who execute multi-phase air permeability testing (ASTM E283), water tightness checks (ASTM E331 up to 450 Pa static pressure), and frame corner joint structural strength evaluations. Backed by over 600 qualified supply chain partners, Zenit delivers turnkey customization options including thermal break extrusions, custom anodized and powder-coated finishes, and triple-pane soundproof laminated glazing systems.

Engineering Specifications

Custom OEM Engineering & Performance Specs

Comprehensive technical parameters customized for project-level procurement and international building codes.

Performance Characteristic Technical Benchmark / OEM Capability Standard Compliance & Testing Methods
Frame Alloy Material 6063-T5 / T6 High-Tensile Extruded Aluminum (1.4mm – 2.0mm profile thickness) ASTM B221 / EN 755-2
Thermal Barrier Tech PA66 Nylon Fiber-Reinforced Thermal Break Strips (14.8mm to 24mm width) ISO 10077-2 / NFRC Certified Thermal Insulation
Glazing Configurations Double/Triple Glazed Tempered Glass (5mm + 12Ar + 5mm), Low-E Coatings, Frosted/Laminated ANSI Z97.1 / CE EN 12150 / AS/NZS 2208
Water Tightness Rating Class 9A (>450 Pa rating with EPDM continuous dual-gaskets and concealed drainage channels) ASTM E331 / EN 12208
Acoustic Insulation Sound reduction index up to Rw = 42 dB (utilizing acoustic PVB interlayers) ISO 140-3 / ASTM E90
Surface Finishing Qualicoat Powder Coating, Electrocoating, PVDF Fluorocarbon, Anodized (Silver, Bronze, Black) AAMA 2604 / AAMA 2605 / ISO 2360
Manufacturing Excellence

End-to-End Production & Quality Assurance Pipeline

Driven by our dedicated R&D division of 42 engineers, Zenit released over 50 new architectural window and door systems over the past year. Explore our advanced 25,000 m² factory environment below.

Raw Material Warehouse
Raw Material Inspection
Threading Machine
Thermal Strip Threading
Cutting Process 1
Precision Profile Cutting 1
Cutting Process 2
Precision Profile Cutting 2
CNC Machining 1
CNC Milling Station 1
CNC Machining 2
CNC Milling Station 2
Assembly Station 1
Frame Assembly 1
Assembly Station 2
Frame Assembly 2
Assembly Station 3
Glazing Installation 3
Assembly Station 4
Sealant Application 4
Hardware Debugging
Hardware & Calibration
Finished Warehouse
Finished Goods Storage
Strip Threading Equipment
Strip Threading Rig
Automated Cutting Machine
Heavy-Duty Saw Station
CNC Milling Center
Multi-Axis Milling Center
Main Assembly Line
Automated Assembly Line
QC Inspection Department
QC Inspection Department
Debugging Testing Rack
Final Debugging Rack
Localization & Standards

Global Regulatory Compliance & Support

Meeting stringent building code requirements across North America, Australia, and Western Europe.

North America (NFRC & CSA)

Full compliance with NFRC testing criteria for U-factor, Solar Heat Gain Coefficient (SHGC), and Visible Transmittance (VT). Designed to withstand extreme climate fluctuations while meeting North American residential and commercial code standards.

Australia (AS2047 & WERS)

Tested in accordance with AS2047 for structural deflection, water penetration resistance (up to 450 Pa), and ultimate strength. Ideal for high-end coastal developments across Sydney, Melbourne, and Brisbane requiring anti-corrosion properties.

Western Europe (CE & ISO 9001)

Factory production processes adhere strictly to ISO 9001 quality management systems and ISO 14001 environmental protocols. CE certified hardware and glass configurations ensure effortless approval across European Union jurisdictions.

Technical Knowledge Hub

Frequently Asked Questions for B2B Buyers

In-depth answers covering customization, thermal performance, waterproofing engineering, and global logistics.

Q1: How do custom aluminum bathroom windows prevent mold and humidity accumulation?
Zenit aluminum bathroom windows integrate dual-cavity thermal break extrusions featuring Polyamide PA66 nylon insulation strips. This thermal disconnect prevents the cold outer aluminum frame from transferring low temperatures to the warm interior profile, eliminating surface condensation that fosters mold growth. Combined with high-grade EPDM double-seal weatherstripping and micro-ventilation casement angles, humidity is effectively expelled while maintaining airtight structural integrity.
Q2: What privacy glass customization options are available for OEM project manufacturing?
We provide a wide variety of architectural privacy glazing, including acid-etched frosted glass, ceramic-fleshed obscure patterns, fluted/reeded textured glass, and smart switchable PDLC glass. All privacy options can be combined into double or triple-glazed insulated units with Low-E coatings and argon gas fill, optimizing light transmission without compromising occupant privacy.
Q3: Which international building code certifications do your bathroom window systems carry?
Our systems carry extensive global certifications including NFRC (National Fenestration Rating Council) ratings for North America, CE marking for Europe, ISO 9001 factory accreditation, and compliance with Australian AS2047 standard guidelines. Structural and water tightness tests are verified independently by certified 3rd party testing labs.
Q4: What is the production lead time and minimum order quantity (MOQ) for bulk OEM orders?
Standard OEM production lead times range from 25 to 35 calendar days following CAD shop drawing sign-off and engineering validation. Our flexible supply chain supports project-based MOQs starting from 50 square meters for custom residential projects up to multi-container shipments for commercial hotel resort builds.
Q5: How does your factory handle quality control across massive manufacturing runs?
Quality control is executed by a dedicated team of 35 internal inspectors across 4 critical milestones: raw material alloy testing, post-CNC profile tolerance inspection, water pressure chamber tests (up to 450 Pa), and hardware cycle testing (over 20,000 continuous opening cycles). Every window receives a unique serial tracking code before protective packaging.
Q6: Can hardware finishes withstand high-salinity coastal bathroom environments?
Yes, for coastal and high-salinity applications, we utilize 316 surgical-grade stainless steel hardware components combined with anodized or PVDF fluorocarbon frame finishes tested to withstand over 3000 hours of continuous neutral salt spray exposure under ASTM B117 protocol.
Expanded Solutions Catalog

Comprehensive Architectural Windows & Doors

Explore our extended catalog of commercial sliding, louvers, fixed glass systems, and hurricane-impact designs.

OUNA USA Project Sliding Window
OUNA Usa Project Engineering Villa NfrcCertified Aluminum Sliding Window Tempered Glass Heat Insulation Garage Door Other Window
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OUNA Modern Customized Sliding Glass Door
OUNA Modern Style Customized Aluminum Sliding Glass Door Living Room Tempered Glass Door Sliding Door
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OUNA Soundproof Sliding Door
OUNA CE Modern Black Aluminum Double Glazed Tempered Glass Terrace Sliding Door Soundproof Sliding Patio Doors
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OUNA Thermal Break Folding Window
OUNA Year Round Comfort Aluminum Thermal Break Folding Window Maintains Indoor Temperature for a Cozy Home in All Seasons
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OUNA Casement Windows
OUNA NFRC American House Project Anti-Impact Aluminium Casement Windows Soundproof Swing Double Glazed CSA Windows and Doors
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OUNA Storefront Glass Doors
OUNA Commercial Storefront Doors Windproof Aluminum Alloy Frame Glass Doors with French Design for Supermarket and Outdoor Use
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OUNA Glass Louver Windows
OUNA Home Use Shutter windows Louvers Aluminum windows Price Design Glass Adjustable Vertical Glass Louver windows
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OUNA Fixed Louver Fence
OUNA Fixed Aluminum Louver Fence or Screen for Modern Design Provides Ventilation Security and Aesthetic Appeal for Property
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