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Bay & Bow.

uPVC Window Configuration

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uPVC Bay and Bow Window
A++
Energy Rating
PAS 24
Security
SBD
Secured by Design
10yr
Guarantee

Pushes the room outward.

A bay or bow window adds real interior volume — typically six to ten square feet of extra floor space — without touching your footprint. It is the cheapest way to grow a Victorian front room, and the most flattering way to frame a view.

We build ours on Liniar’s 70mm six‑chamber platform with a structural bay pole system, meaning the frame itself takes the load of the roof above. Slim sightlines. Warmer than any period original. A++ energy rated as standard, and certified secure.

Bay and Bow detail
Bay and Bow configuration

Square bay. Angled bay. Bow.

Square bays (90°) suit London terraces and mid‑century semis. 135° angled bays soften the projection for Edwardian and Arts‑and‑Crafts properties. Bows — curved over four or five lights — are the choice for Georgian shopfronts and cottage elevations.

Any configuration can be fitted as fully opening, partial opening, or a run of fixed lights — and can be specified with astragal bars or Georgian glazing bars to match a heritage look without the heritage maintenance.

Specifications

1.2
U-Value (W/m²K)
PAS 24
Security
A++
Energy Rating
SBD
Secured by Design
Double/Triple
Glazing
3600mm
Max Width
10 Years
Guarantee
Available
Astragal/Georgian Bars

Liniar multi‑chambered sculptured profile with structural bay pole and jack system carrying loads up to 1 tonne. Reinforced variable‑angle couplers allow 90°, 135° or curved bow geometry. A++ Windows Energy Rating achievable; PAS 24 enhanced security, Part Q compliant, Secured by Design accredited. Window types within the bay can be mixed — casement, flush, or tilt‑and‑turn — and matched to the rest of the house. Internally beaded with steel reinforcement where structural spans require it. 10‑year frame guarantee.

3‑light, 4‑light, and 5‑light configurations. Square bay (90°), angled bay (135°), or curved bow options. Combination of fixed and opening lights. Astragal and Georgian bar options available. Structural options include load‑bearing bay poles for fully open‑plan interiors beneath.

Colour Options

Available in White, Cream, and Grey as standard.

White
Cream
Grey

Full bespoke colour range available to match any property style.

Bay and Bow colour options

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