Chartwell Green UPVC Window-design 31

Description

Chartwell Green uPVC Wide Combination Casement Window — Panoramic Glazing, Complete Ventilation Control

For larger wall openings that call for something more than a standard casement, our Chartwell Green uPVC Wide Combination Casement Window offers a genuinely comprehensive solution. Five carefully arranged lights — combining fixed glazing, top-hung ventilation, and side-hung casements across a wide frame — deliver panoramic natural light, flexible independent airflow, and a strong, architecturally considered exterior appearance in a single made-to-measure unit.

This is the window for the room that faces the best view. The kitchen extension that opens onto the garden. The wide bay in a living room where you want the outside to feel part of the inside. The front elevation of a period property where proportions and heritage colour matter as much as performance.

A Layout Built Around How Rooms Actually Work

Every light in this five-pane design has been placed with purpose. The wide central fixed picture pane is the visual anchor of the whole window. Spanning the full height of the lower frame section without any horizontal rail interrupting the view, it frames your garden, street or landscape like a painting — clean, unobstructed, and generously proportioned.

The left-hand section divides into two independent opening lights. At the top, a top-hung vent angles outward from its upper edge, allowing warm air to escape at ceiling level while staying completely rain-resistant. This is your everyday background ventilation — the vent you can leave open in all but the worst weather without ever needing to think about it. Below it, a side-hung casement swings fully open when you need proper, generous airflow through the room. Together they give you layered ventilation control across two height levels on the left side of the frame.

The right-hand section mirrors the outer casement of the left — a side-hung opening casement at the lower level — but replaces the top-hung vent with a fixed top light, creating a subtle asymmetry that adds visual interest while keeping the overall composition balanced. Both outer casements can be opened simultaneously for strong cross-ventilation, or operated independently to direct airflow exactly where it’s needed.

The fixed top lights above both outer sections tie the full width of the frame together at the head, reinforcing the horizontal emphasis of the design and ensuring the window reads as a single cohesive unit rather than three separate frames pushed together.

Thermal Performance Across Every Section

A wide multi-light frame presents more opportunities for thermal weakness than a narrower window — more frame junctions, more sightlines, more potential for cold bridging at meeting stiles and horizontal rails. Our 70mm multi-chamber uPVC frame system is engineered to address all of these. The multiple sealed air chambers within the profile maintain consistent thermal resistance across every section of the frame, whether structural or glazed.

The 28mm argon-filled sealed units, soft coat low-E glass, and warm-edge black superspacer bar complete the specification — achieving a U-value of just 1.3 W/m²K across the full width of the window. That is A-rated performance maintained consistently from the left-hand casement to the right-hand fixed light, meeting Part L Building Regulations with genuine comfort to spare.

Wide-Format Proportions in Chartwell Green

A five-light window at this scale makes one of the strongest exterior statements of any window configuration. The proportions — the balance between the wide central pane, the narrower outer sections, and the slim top lights above — are the result of considered design, and the fully sculptured 70mm profile reinforces them with clean moulded edges and well-defined shadow lines.

In Chartwell Green, this window brings immediate heritage character to any elevation. The soft sage tone works as naturally on a rendered new-build as it does on a Victorian brick terrace, and because the finish is integral to the uPVC profile rather than painted on, it will look exactly the same in twenty years as it does on the day it is fitted. No repainting. No maintenance. No colour drift. Just consistent, guaranteed Chartwell Green, backed by a 10-year profile guarantee.

These uPVC casement windows are the kind of feature that adds genuine kerb appeal — the kind that prospective buyers notice from the end of the street.

Security on Every Opening Light

All three opening lights — the top-hung vent and left side-hung casement, plus the right side-hung casement — are independently secured with multi-point locking systems and lockable push-button handles as standard. Every pane across the full five-light frame is retained by internal glazing beads, preventing the glass from being removed from outside on any section. Patented double-action bubble gaskets seal the full perimeter of each opening vent, maintaining a consistent draught-proof and weathertight barrier in all conditions.

Specification at a Glance

• Energy Rating: A-rated | U-value 1.3 W/m²K
• Configuration: 5-light — top-hung vent and side-hung casement left, wide fixed picture pane centre, fixed top light and side-hung casement right
• Frame System: 70mm multi-chamber thermally efficient uPVC
• Glazing: 28mm argon-filled units, soft coat low-E glass, warm-edge superspacer
• Locking: Multi-point locking on all three opening lights
• Handles: Lockable push-button handles as standard
• Beading: Internal throughout for maximum security
• Gaskets: Patented double-action bubble gaskets
• Finish: Chartwell Green — guaranteed not to discolour, warp or peel
• Compliance: Part L Building Regulations
• Guarantee: 10-year profile guarantee

Made to Your Exact Measurements

• Frame Width: 415mm – 700mm
• Frame Height: 800mm – 2200mm

Every window is manufactured to order to your precise dimensions. Enter your measurements at checkout for a perfect made-to-measure fit across the full width of your opening. Our team is always available for sizing advice before you place your order.

The Complete Window for Your Most Important Room

When the opening is wide, the room is your main living space, and the view outside is worth framing properly, this five-light combination casement is the most complete answer in our range. The wide central picture pane gives you the view. The twin outer casements give you the ventilation. The top-hung vent gives you background airflow you can trust in any weather. And the Chartwell Green frame ties it all together with a heritage finish that elevates the entire elevation. It is the most versatile, most visually impactful, and most thoroughly specified design in our Chartwell Green uPVC window collection.