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Double Hung PVC Basement Hopper Windows

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Product Description

Basic Specifications

Model NO.

LMWD

Opening Pattern

Horizontal

Style

European

Function

Fireproof, Soundproof, Heat Insulation, Airproof, Dust-proof

Surface Finishing

Finished

Security Level

Glass Type

Tempered, Low-E, Insulating

Reinforce Steel

Galvanized

Position

Room

Production Capacity

36,000 sqm/Year

Technical Details

Feature	Specifications
Window Design	European Style, American Style
Product Material	Original Raw UPVC
Property	Lead-free (eco friendly), UV Resistance, Anti-aging, Fade-proof, Heat Preservation, Noise Reduction
Certificates	CE, ISO, Rohs
Hardware	Custom Made High-Quality Accessories
Reinforcing	Galvanized Steel / Thickness ≥ 1.5mm

Why Choose UPVC?

Great leakproofness and air-tightness
Flexibility in choosing various hardware options
Excellent thermal insulation for all climates
Effective noise control and reduction
Non-pollution and environment-friendly materials
Competitive costs and long working life
High-level safety and easy maintenance

Core Features

Our uPVC profiles are manufactured using lead-free formulas and environment-friendly stabilizers. Designed for various climates, they offer exceptional anti-aging and UV resistance. The internal structure is reinforced with galvanized steel, providing a solid foundation for locks, hinges, and other essential hardware.

Glass accounts for 70-80% of the window area, playing a vital role in thermal and noise insulation. We provide single, double, and triple glazing options, including tempered, laminated, and Low-E glass.

Available Craftsmanship

Regular White Profiles: Ideal for standard buildings with excellent UV resistance.
Homogenous Profiles: Consistent color throughout the frame for long-term aesthetic stability.
Laminated Foils: Available in wood grain, walnut, smoky gray, and golden oak for a high-end finish.
Co-extruded Profiles: Efficient coloring on visible sides with great property retention.

Glass & Reinforcing

Glass Type	Clear, Tempered, Frosted, Laminated, Low-E, Insulated (Ar/Kr Filled)
Steel Property	Thickness ≥ 1.5mm, Galvanized, Corrosion & Rust-proof

Hardware & Accessories

Accessory	Description
Components	Lock, Handle, Hinge, Restictor Crank, Wind-proof Block, Pulley, Anti-friction Strip
Finishing	Spray Finishing, Anodized, etc.

Production & Assurance

Profile Cutting: Precision 45° angle cutting for both ends.
Drilling: Mechanical drilling for optimal drainage holes.
Frame Welding: High-temperature fusion welding for structural integrity.
Corner Cleaning: Automated smoothing for a seamless aesthetic.
Quality Testing: Strict multi-point inspections before shipment.

Frequently Asked Questions

Q1: What are the main advantages of UPVC windows?

A1: UPVC windows offer superior thermal insulation, excellent noise reduction, low maintenance, and high durability against UV rays and aging compared to traditional materials.

Q2: Can the window colors be customized?

A2: Yes, we offer various craft options including homogenous colors, laminated foils (wood grain, oak, etc.), and co-extruded colors to match your architectural style.

Q3: Are these windows energy efficient?

A3: Absolutely. By utilizing multi-chambered profiles and options like Low-E or argon-filled insulated glass, our windows significantly reduce heat transfer and energy costs.

Q4: What kind of maintenance do UPVC windows require?

A4: They are very low maintenance. Occasional cleaning with mild soap and water is usually sufficient to keep them looking new for years.

Q5: Is the hardware resistant to rust?

A5: Yes, all internal reinforcing steel is galvanized, and accessories undergo spray finishing or anodizing to ensure long-term corrosion resistance.

Q6: Do you provide different glass thickness options?

A6: Yes, we offer a wide range of thicknesses from 4mm single glass to various double and triple glazing combinations like 5+9+5mm or 6+12+6mm.