Chartwell Green UPVC Window-design 35

Description

Chartwell Green uPVC Twin Fixed Light Window — Pure Glazing, Maximum Efficiency

Not every window needs to open. In rooms where ventilation is handled by other means — mechanical extract, an adjacent opening window, a door to the outside — a fully fixed window is not a compromise. It is the most thermally efficient, most structurally secure, and most visually uncluttered window configuration available. Our Chartwell Green uPVC Twin Fixed Light Window takes that principle and delivers it in the most refined form possible — two generous full-height panes of A-rated double glazing in a clean, sculpted Chartwell Green frame with no hardware, no hinges, and no interruption to the view.

This is a window that does one thing exceptionally well — brings light in, keeps heat in, and keeps the weather out — and does it with a simplicity and visual clarity that no opening configuration can quite match.

Why Fixed Windows Perform Better

Every component added to a window to make it open — hinges, gaskets on moving parts, the compression seal between opening sash and fixed frame — introduces a potential point of thermal or weather weakness over the long term. A fixed window has none of these. The glass is permanently sealed within the frame, the perimeter seal is static and never subject to the repeated stress of opening and closing, and the frame itself carries no hardware that could wear, corrode or require adjustment.

The result is a window that maintains its thermal performance and weather resistance across its entire lifespan without degradation. The U-value of 1.3 W/m²K achieved on day one is the U-value maintained in year ten and year twenty — because nothing moves, nothing wears, and nothing compromises the integrity of the sealed unit or the frame perimeter.

For rooms where ventilation is not the primary function of the window — stairwells, hallways, home offices, utility rooms, and rooms with mechanical ventilation — a fixed window is not a lesser option. It is the right option.

Twin Panes, One Cohesive Frame

The two fixed panes in this design are separated by a single slim central divider that is kept as narrow as the 70mm multi-chamber profile allows. This minimises the visual interruption between the two lights, allowing the eye to read the window as a single wide expanse of glass rather than two separate panes. The effect is a window that feels broader and more open than its frame dimensions might suggest — and that floods the room with natural light across the full width of the opening without any horizontal or vertical elements competing for attention.

Both panes run the full height of the frame from sill to head. There are no horizontal rails, no fixed lower sections beneath a notional vent area, no top lights above a notional fixed section. Just clean, full-height glazing on both sides of the central divider, held in a sculpted Chartwell Green frame that gives the whole composition its definition and character.

From inside the room, the twin fixed lights create a wide, picture-frame view of whatever lies outside. From the street, the clean lines and slim profile of the Chartwell Green frame give the window an understated, architectural quality that reads as considered and deliberate rather than simply functional.

Thermal Performance Without Compromise

Because there are no moving parts to engineer around, the thermal specification of a fixed window can be optimised more completely than that of any opening configuration. The 70mm multi-chamber uPVC frame, 28mm argon-filled sealed units, soft coat low-E glass, and warm-edge black superspacer bar work together without interruption across both panes — delivering a consistent U-value of 1.3 W/m²K throughout and meeting Part L Building Regulations comfortably.

The warm-edge black superspacer bar is particularly effective in a fixed window because the glass edge — where the sealed unit meets the frame — is permanently static. There is no repeated flexing of the spacer bar as the window opens and closes, no gradual compression of the seal, and no thermal bridging developing over time at the glass perimeter. The superspacer maintains its low-conductivity performance indefinitely, keeping the glass edge warm and condensation-free across the full lifespan of the unit.

Chartwell Green — Refined and Restrained

On a fixed window, the frame is everything. Without handles, hinges, or opening hardware to draw the eye, the profile itself carries the full visual weight of the design — and our fully sculptured 70mm profile carries it with confidence. The moulded edges and shadow lines of the Chartwell Green frame give these uPVC casement windows the refined, joinery-quality appearance of painted timber without a single hour of maintenance ever required.

The soft sage tone of Chartwell Green works particularly well on a twin fixed light design because the simplicity of the configuration allows the colour to speak without distraction. No hardware, no vent indicators, no visible hinges — just clean Chartwell Green framing two generous panes of clear double glazing. It is a window that earns its place on any elevation through understatement and quality rather than complexity.

The finish is co-extruded into the uPVC profile and is guaranteed not to fade, peel, warp or discolour, backed by a full 10-year profile guarantee. Maintenance is limited to an occasional wipe with a damp cloth.

Security Without Hardware

The absence of opening hardware does not mean a reduction in security. Both panes are retained throughout by internal glazing beads — the glass cannot be pushed or levered out from the exterior on either light. The fixed frame perimeter is sealed and static, with no hinge gaps or compression seal contact points that could be exploited. These double glazed uPVC windows are as secure as any fixed window can be, without the need for locking handles or multi-point systems.

Specification at a Glance

• Energy Rating: A-rated | U-value 1.3 W/m²K
• Configuration: 2-light — twin full-height fixed panes, no opening lights
• Frame System: 70mm multi-chamber thermally efficient uPVC
• Glazing: 28mm argon-filled units, soft coat low-E glass, warm-edge superspacer
• Hardware: None — fully fixed configuration
• Beading: Internal on both panes for maximum security
• 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. Our team is available for any sizing queries before you place your order.

The Right Window When Light Is the Priority

There are spaces in every home where the window exists purely to bring light in — and where the simplest, most efficient, most visually clean solution is a fixed frame with nothing to distract from the glazing. This twin fixed light design is that solution. Two full-height panes of A-rated double glazing in a slim Chartwell Green frame — no hardware, no hinges, no compromise on thermal performance or security. It is the most efficient, most enduring, and most quietly beautiful design in our Chartwell Green uPVC window range.