Certification of Doors & Windows

Independently tested and certified for energy performance, safety, and manufacturing quality.

NFRC U-Factor 0.18
As referenced in NFRC test documentation.
NFRC Certified
NFRC
Energy Star Certified
Energy Star
AS2047 Certified
AS2047
CE Certified
CE
ISO 9001 Certified
ISO 9001
CSA Certified
CSA

Quality Guarantee

  • Factory QC at every stage; pre-shipment inspection report provided.
  • Thermally broken aluminum + Low-E double tempered glass options.
  • Wind resistance up to LV9 and water resistance up to LV4 on select models.
  • Compliance with energy-saving and safety standards.
  • After-sales support and parts availability.

Doors & Windows Highlights

  • Custom sizes, colors, and configurations (sliding, casement, folding, hinged).
  • Multi-point locking hardware and tight weather seals.
  • Low U-factor glazing packages for high energy performance.
  • Optional screens, acoustic, and security glass.
  • Residential and commercial specifications available.

ONE-STOP SOLUTIONS FOR YOUR PROJECTS

A complete range of products to satisfy customer requirements in different regions and countries.

Windows
Window
Door
Entrance Smart Door
Bifolding Door
Bifolding Door
Flooring
Flooring
Glass Pergolas
Glass Pergolas
Wall Panel
Wall Panel
More Products

Hot Products

Popular doors, windows, and outdoor systems.

Moo Minimalist Door Series

Moo Minimalist Door Series

Large sash area, seamless indoor–outdoor feel.

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Lift Sliding Door

Lift Sliding Door

Embedded frame, better sealing, smooth lift-slide.

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Glass Folding Window

Glass Folding Window

6063-T5 aluminum + double tempered glass.

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88 Casement Window

88 Casement Window

6063 aluminum, strong wind resistance.

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110 Casement Window

110 Casement Window

1.4mm wall, 110mm frame, robust profile.

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T2 Casement Window

T2 Casement Window

Narrow edges, minimalist lines, wide view.

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Youran 105 Sliding Window

Youran 105 Sliding Window

Extremely narrow design, double-glazed.

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Outdoor Aluminium Pergola

Outdoor Aluminium Pergola

Sunshade, heat insulation, wind & rain proof.

Learn More →

ONE-STOP SOLUTIONS FOR OUR PROJECTS

From product range to global delivery, Liangjia ensures excellence at every step.

1

Step 1

A complete range of products to ensure our solutions satisfy any customer requirements across different regions and countries.
2

Step 2

We have specialized R&D and production construction equipment to ensure the product quality and production cycle.
3

Step 3

Serving more than 100 countries, we have provided quality door and window products and services for 100,000+ projects.
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What Services We Offer

High-quality solutions tailored for your door and window needs.

Product Range

A complete selection of aluminum doors & windows to meet diverse customer requirements.

R&D & Production

Specialized equipment and R&D to ensure quality and efficiency in production cycles.

Global Delivery

Serving over 100 countries with reliable shipping and project support worldwide.

Custom Solutions

Tailored solutions for projects of all sizes, ensuring customer satisfaction every time.

After-Sales Support

Comprehensive support to ensure smooth installation, maintenance, and long-term service.

Consultation

Expert guidance on product selection, project planning, and design optimization.