Gealan Windows

10/03/2026

Why Do European Windows Open Inwards? It Goes Back Centuries

American casement windows crank outward, so a European tilt-and-turn window swinging its whole sash inward can feel odd the first time you use one. The reason isn't cleaning or ventilation — those are modern benefits. It's history: the outside of the window was already occupied.

For centuries, external shutters handled weatherproofing and security while glass was still a luxury. A sash can't swing out past a shutter mounted outside, so it swung in instead. Iron security grilles on lower floors made that permanent. The 19th-century box window, an early form of double glazing, relied on inward-opening sashes to access the insulating air gap between panes. Roller shutters carried the same constraint into the modern era.

German engineers turned that centuries-old limitation into a feature in the 1950s: the tilt-and-turn window, with multi-point locks hidden between sash and frame, secure tilt ventilation, and both glass surfaces reachable from inside.

GEALAN engineers the uPVC profile systems carrying that tradition forward today.

Contact us to explore European window systems for your project.

It's not just tilt and turn. The real reason goes back centuries — from external shutters and security grilles to modern windows. Here's the full history.

10/01/2026

Are uPVC Window Profiles Recyclable? What Sustainable Builders Should Know

Sustainability is now a spec requirement on 2026 projects, and windows sit right at the center of it. Can a uPVC profile actually be recycled, or does it end up in a landfill?

It can. High chlorine content gives uPVC stable polymer chains, so mechanical recycling happens several times over without meaningful performance loss — a real part of the circular economy, not a disposable material.

GEALAN pushes it further. Within the VEKA Group, GEALAN has built recyclability into product development since the late 1990s, designing profiles for recycling from first sketch through end of life. More than 33% of the uPVC in a GEALAN profile is already recycled material, with old windows and production residues flowing back into a closed loop. GEALAN is a co-partner of REWINDO and a certified VinylPlus® partner.

For architects and developers, that's a real edge: profiles built partly from reclaimed material, engineered to become tomorrow's raw material instead of waste.

Learn how GEALAN engineers profiles for recyclability, uses 33%+ recycled content, and supports green building goals for sustainable projects.

09/27/2026

What Windows Get the Most Sunlight? It Comes Down to the Frame

Chasing daylighting goals? The bigger factor isn't glass — it's how much of the opening the frame takes up. Fixed picture windows need no hinges or hardware, so their profiles can run narrower, leaving more of the opening for glass.

That's why large fixed glazing shows up so often in multi-family lobbies, corridor units, and commercial storefronts. Pairing those units with tilt-and-turn windows from the same profile family keeps sightlines consistent across an elevation, so daylight stays even unit to unit.

GEALAN's S 8000 and GEALAN-LINEAR systems deliver narrow sightlines, a multi-chamber design with integrated thermal breaks, and one profile family across fixed, operable, and sliding units — more daylight, no trade-off on thermal performance.

Contact us to talk sightlines and glazing options for your next project.

Learn what windows get the most sunlight and how architects use European profiles to bring daylight deep into multi-family and commercial projects.

09/26/2026

Window Design 101: Styles, Materials, Sizing

What separates a casement window from a tilt-and-turn? Why vinyl over fiberglass? Our new guide covers window design from the ground up — operation types, styles, frame materials, standard vs. custom sizing, and unorthodox shapes like arched and corner windows.

We break down how each style opens (tilt, turn, slide, swing), give a neutral look at vinyl/uPVC, wood, aluminum, and fiberglass, and cover what changes between a historic home, new construction, and a commercial project.

GEALAN's European-engineered profile systems handle standard replacements through fully custom configurations — built for flexibility, whatever the project.

Learn the basics of window design: styles, materials, sizes, and unusual shapes, so you can choose the right windows for any home or project.

09/25/2026

What an incredible experience at GlassBuild America 2026 in Las Vegas!

09/24/2026

Buying Vinyl Replacement Windows? Ask These Questions First.

Vinyl windows dominate the U.S. market for good reason — affordable, low-maintenance, energy efficient. But "vinyl" isn't one product. The gap between budget-grade frames and premium ones shows up fast in performance and longevity.

Before signing anything: check wall thickness and chamber count, ask about virgin vs. recycled vinyl content, and read the NFRC label for U-factor and SHGC — those numbers predict comfort better than any brochure. Get an itemized quote, since removal, disposal, and trim work often get left out. Then read the warranty fine print, because "lifetime" coverage varies widely on hardware and labor.

GEALAN's uPVC window systems are German-engineered, with the reinforcement, glazing options, and quality controls that prove themselves over the full life of the window.

Contact us to get started on your next window project.

Buying vinyl replacement windows? Learn what actually matters: quality, energy ratings, installation, quotes, and warranty before you sign a contract.

09/21/2026

Noise Control in Multi-Family Buildings: What Actually Blocks Street Sound

Windows are usually where street noise gets into an apartment. Walls have mass to block sound; a window is a thin glass pane with a frame, and any gap around it lets noise straight through.

Two things stop it: the frame's internal structure and how tightly the window seals. Multi-chambered uPVC frames use separated air pockets to absorb sound. Multi-point locking hardware pulls the sash tight all around, keeping pressure even instead of concentrated at the handle.

That combination is the difference between a building with noise complaints and one without.

GEALAN's multi-chambered uPVC profiles and multi-point hardware seal tight and hold — real noise control without sacrificing energy efficiency or durability.

Multi-chambered uPVC frames and multi-point locking hardware seal tighter than standard windows, cutting street noise in urban multi-family buildings.

09/04/2026

𝗗𝗲𝘀𝗶𝗴𝗻𝗲𝗱 𝘁𝗼 𝗜𝗻𝘀𝗽𝗶𝗿𝗲. 𝗕𝘂𝗶𝗹𝘁 𝘁𝗼 𝗣𝗲𝗿𝗳𝗼𝗿𝗺.

Exceptional homes deserve exceptional windows and doors.

This beautiful home features GEALAN tilt and turn windows/doors, seamlessly blending contemporary design with outstanding performance. The sleek black finish complements the home’s modern architecture, while expansive glass openings fill every room with natural light, creating bright, open, and inviting living spaces. At GEALAN we combine 𝗚𝗲𝗿𝗺𝗮𝗻 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 with 𝗔𝗺𝗲𝗿𝗶𝗰𝗮𝗻 𝗺𝗮𝗻𝘂𝗳𝗮𝗰𝘁𝘂𝗿𝗶𝗻𝗴 to create premium window and door systems that deliver exceptional energy efficiency, security, durability, and timeless design. Every detail is thoughtfully engineered to enhance comfort, elevate aesthetics, and enrich the way you experience your home.

ModernArchitecture LuxuryHomes EuropeanWindows WindowAndDoorSystems Architects Builders HomeDesign LuxuryLiving

08/31/2026

Do Soundproof Windows Actually Reduce Noise?

Tired of traffic or neighborhood noise? 🔊 Soundproof windows promise peace — but do they really work? Learn what actually blocks sound and what doesn’t in the full article.



https://gealanwindows.com/blog/do-soundproof-windows-work/

08/28/2026

Big or Small Windows — Which Size Makes Sense?

More glass or more control? Window size affects light, comfort, privacy, and energy use. How do you choose the right balance for your space? Get clarity in the full article.



https://gealanwindows.com/blog/large-vs-small-windows/