Fixed and picture windows · Gwynedd
Triple glazed fixed and picture windows in Caernarfon
Homes in Caernarfon can have triple glazed fixed and picture windows supplied and fitted, with surveys arranged across Gwynedd including LL55.

The best energy performance of any window type: no opening gaps. A fixed or picture window does not open; it is one large pane in a slim frame, used to frame a view or bring in light.
Winter light and glass choice in Caernarfon
On the shortest day, Caernarfon gets about 7 h 32 min of daylight and the midday sun reaches only about 13° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.
Guide prices in Caernarfon
| Guide | Supply and fit, inc VAT |
|---|---|
| Fixed window uPVC, about 1500 x 1200 mm | £745 – £945 |
| Large picture window uPVC, about 2400 x 1500 mm | £1,295 – £1,695 |
| Feature window uPVC, about 3000 x 2000 mm, heavy lift | £2,295 – £2,895 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for fixed and picture windows in Wales
Wales requires replacement windows to achieve 1.4 W/m²K, or a Window Energy Rating of band B or better, which good triple glazing passes comfortably. As in England, replacement windows are a controlled fitting: a competent person scheme installer self-certifies the work, or building control approves it.
Before ordering: Householder permitted development rules do not cover flats, and councils can remove rights with Article 4 directions. Listed buildings need listed building consent. Check with your council before changing the style or material.
How it works
We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.
- Every opening measured, including escape and vent needs
- Frames rated for the weight of triple glass
- Old windows removed and taken away
- Each opening closed up the same day
Questions from Caernarfon
Can a fixed window be the escape window?
No. An escape window must open. We keep or add an opening window where one is needed.
How heavy is a large triple glazed pane?
Roughly 30 kg per square metre with 4 mm glass, more with thicker or laminated panes. A 3 m by 2 m unit can weigh around 180 kg.
Do I need permission for triple glazed fixed and picture windows in Caernarfon?
In Wales, householder rules do not cover flats, councils can use Article 4 directions, and listed buildings need consent. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.
How long does it take to get triple glazed fixed and picture windows fitted in Caernarfon?
After the survey, typical manufacture time is 4 to 8 weeks, and most homes are fitted in 1 to 4 days.
Nearby
We also cover nearby Llangefni (13 km), Bangor, Gwynedd (13 km), Porthmadog (25 km) and Pwllheli (30 km).
Other products in Caernarfon
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Composite front doors
- French doors
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Fixed and picture windows in Caernarfon: book your free survey
Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in Wales.
