- Postcode district
- LL55
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 4–6 weeks from survey sign-off
- Guide price
- From £3,295 inc VAT
- Nearby
- Llangefni, Bangor (Gwynedd), Beaumaris
- Building rules
- Wales
Why choose aluminium sliding doors in Caernarfon?
These are the points a surveyor will go through with you when you choose aluminium sliding doors for a home in Caernarfon:
If your Caernarfon home has a rear extension or kitchen-diner, aluminium sliding doors let you place a table close to the glass, because no panel swings into the room.
For a south- or west-facing garden in Caernarfon, solar-control glass in the sliding panels can keep a glazed room more comfortable on summer afternoons.
- Multi-point hook locks grip the frame at several points along the closing edge, while anti-lift blocks stop a shut panel being raised off its track from outside.
- Polyester powder coating is baked onto the aluminium in the factory, giving a hard, even colour that resists fading and chalking and does not need repainting in normal use.
- Because the panels slide rather than swing, nothing opens into the room or across the patio, leaving space for a dining table, sofa or planters right up to the glass.
Sunlight, glass and orientation in Caernarfon
At the latitude of Caernarfon, the midday sun climbs to about 60° in late June but only about 13° in late December, when daylight lasts around 7 h 32 min against 16 h 58 min in midsummer. A south-facing aluminium sliding door lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
Typical costs for aluminium sliding doors around Caernarfon
The table shows guide prices for common sizes, supplied and fitted, including VAT. Your exact price is fixed in a written quote once the opening in your Caernarfon home has been measured.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £3,695–£4,495 |
| 3.0 m | 2 panels | £4,995–£6,095 |
| 4.8 m | 4 panels | £6,995–£8,495 |
See every size on the aluminium sliding doors page or try the guide price tool.
How fitting works in Caernarfon
Surveys in the LL55 district are booked at a time that suits you. After you approve the quote, manufacture is typically 4–6 weeks from survey sign-off; on fitting day the old door comes out, the new frame is set level and sealed, and the panels are adjusted so they glide properly. Fitting usually takes 1 day for a two-panel straight swap; 1–2 days for larger doors.
Do you need approval in Caernarfon?
In Wales, replacement doors are covered by the Building Regulations as applied in Wales, including the Welsh Part L energy requirements and safety glazing rules. Compliance is arranged through a competent person scheme installer or your council's Building Control, and the certificate is kept with your property records.
Choosing the specification
- Dual colour. A different colour inside and outside, so the exterior can match your windows while the interior suits the room.
- Threshold. A standard or low threshold, or a flush finish with a drainage channel outside where floor levels allow.
- Glass. Double or triple glazed units in toughened or laminated safety glass, with solar-control or self-cleaning coatings.
Questions about aluminium sliding doors in Caernarfon
Can you match other doors and windows in my Caernarfon home?
Usually, yes. Most aluminium and uPVC systems come in standard RAL colours and finishes, and we can quote dual colour where the inside and outside need to differ. Bring photos of existing frames to the survey.
How long do aluminium sliding doors take to arrive?
Aluminium sliding doors typically take 4–6 weeks to make after you sign off the surveyed specification, because each door is built to measure and powder coated to order. Fitting a straight swap of a two-panel door typically takes 1 day, and larger doors 1–2 days. These are typical times rather than promises, and we confirm a date once the order is placed.
Should I choose aluminium sliding doors or bifolds?
Choose aluminium sliding doors if you want the most glass and fewest frames when the door is closed, and bifolds if you want almost the whole width open in summer. A slider keeps wide panels with slim meeting stiles but only opens part of the width; a bifold folds away but shows a frame every metre or so. Our sliding doors vs bifold doors guide compares them in detail.
How wide can an aluminium sliding door be?
An aluminium sliding door in our range can span from about 1.5 m to 6 m, split into two to four panels. Each panel is usually up to about 2.5–3 m wide depending on the system and the weight of the glass. Wider openings take more panels, and beyond about 6 m a multi-track or lift and slide system is usually the more practical choice.

