Casement Windows: The “Performance-oriented” Choice for Home Renovation. Here Are the Details You Must Know

 1. Why Casement Windows Are a Hit in Home Renovation?

First, Understand What They Are Post-pandemic, people are paying more attention to ventilation and sound insulation at home—and casement windows have become a renovation favorite thanks to their “solid performance.” Simply put, casement windows open horizontally (unlike sliding windows that move left and right), with three common styles: inward-opening, outward-opening, and top-hung. For example, STATE CROWN’s integrated screen casement windows combine the screen and glass into one unit, so you don’t have to remove the screen separately—super convenient for daily use.

Many homeowners ask: “What’s the difference between casement windows and regular sliding windows?” The answer is simple: casement windows have a simpler structure (no complex tracks), so they open and close quietly. Plus, their hardware is custom-made—our imported stainless steel hinges, for instance, can hold up to 80kg, so they won’t sag even after 10 years of use.

2. 3 “Superpowers” of Casement Windows That Solve Home Pain Points

1. Max Ventilation: Casement windows can open up to 70% of their area—30% more than sliding windows. This is perfect for kitchens (to clear cooking fumes fast) or living rooms (for quick air circulation, reducing AC use in summer).
2. Strong Sound Insulation: Equipped with triple-pane insulated glass and EPDM gaskets, our casement windows reduce noise by 40 decibels. A homeowner near a busy street once told us: “After installation, I can barely hear traffic—my kid focuses better on homework now.”
3. Safe & Easy to Clean: Inward-opening models let you clean the glass without reaching outside (safe for kids and the elderly), while outward-opening ones save indoor space—great for small apartments.

3. How Good Are Casement Windows? Data Speaks Louder

Performance Indicator	STATE CROWN Casement Windows	Regular Sliding Windows
Wind Resistance Grade	Grade 6 (resists Force 12 winds)	Grade 4
Water Tightness Grade	Grade 5 (no leakage in heavy rain)	Grade 3
Air Tightness Grade	Grade 7 (excellent heat retention)	Grade 5
Heat Transfer Coefficient (K-value)	≤1.8 W/(㎡·K)	≥2.8 W/(㎡·K)

4. 3 Mistakes to Avoid When Customizing Casement Windows

1. Choose Material Based on Climate: For rainy southern regions, pick broken-bridge aluminum (corrosion-resistant); for cold northern areas, add PA66 thermal strips to keep rooms 3-5℃ warmer in winter.
2. Don’t Skimp on Hardware: Always choose 304 stainless steel—our standard hinges, for example, can withstand 50,000 openings/closing cycles (3x more durable than regular hardware).
3. Match Glass to Your Needs: For street-facing homes, use laminated insulated glass (anti-impact); for high-rises, use tempered insulated glass (wind-resistant). Add anti-fall ropes if you have kids.

5. 3 Common Questions from Homeowners, Answered

Q: Will outward-opening casement windows get damaged by strong winds?A: No! We install wind limiters—when winds exceed Force 5, the window only opens 10cm. This keeps it ventilated, safe, and prevents it from hitting the exterior wall.

Q: Are casement windows safe for low-floor homes?A: We recommend inward-opening & top-hung models. You can keep them slightly open for ventilation, and fully open only for cleaning—thieves can’t reach inside from outside, making them safer than sliding windows.

Q: How long does STATE CROWN’s customization take?A: From on-site measurement to installation, it takes about 15-20 days (3-5 days longer in peak seasons). We also offer free on-site surveys—we’ll give advice based on your home’s layout and orientation. For example, for west-facing rooms, we recommend Low-E glass to reduce heat from sunlight.

Finally, don’t just focus on price when choosing casement windows—hardware and gaskets (the “invisible parts”) matter most. STATE CROWN has 10 years of experience in custom windows, with a warranty covering design to after-sales. Contact us for a free custom plan for your home!