- Postcode district
- LL49
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 2–4 weeks for uPVC or 4–6 weeks for aluminium, from survey sign-off
- Guide price
- From £1,995 inc VAT
- Nearby
- Pwllheli, Caernarfon, Dolgellau
- Building rules
- Wales
Is a tilt and slide door a good fit for your home in Porthmadog?
A few practical points decide whether tilt and slide doors suit a particular room and opening:
For a flat in Porthmadog, check your lease or title deeds and speak to the managing agent, factor or other owners before replacing a balcony door, since flats can need consent that houses do not.
Is the opening in your Porthmadog home wider than about 3 m? If so, tilt and slide hardware will not carry a sash that size, and a lift and slide door is worth comparing.
- The sash moves forward and slides parallel in front of the fixed pane, so nothing swings into the room and the floor beside the door stays usable.
- The tilt position opens a narrow gap at the top of the sash while the hardware holds it in place, so a room can be aired without leaving a door open.
- A sliding restrictor, available on many systems, limits how far the sash can open, which is useful for upstairs balconies and homes with young children.
Planning glass for the light in Porthmadog
In Porthmadog the shortest day has roughly 7 h 34 min of daylight and the longest about 16 h 55 min. The noon sun sits near 14° above the horizon in winter and 61° in summer — so glass that faces south collects useful warmth from October to March, while a west-facing door may need solar control to stop it overheating in July.
What should you budget for tilt and slide doors in Porthmadog?
Guide prices are the same across Gwynedd: the fitted price depends on the size, system and specification, not your postcode. These figures are for a standard 2.1 m high door, fitted, including VAT and removal of an old door of similar size.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £1,995–£2,495 |
| 1.8 m | 2 panels | £2,195–£2,695 |
| 3.0 m | 2 panels | £2,995–£3,595 |
See every size on the tilt and slide doors page or try the guide price tool.
From survey to fitted door in Porthmadog
We plan the job around your home in Porthmadog: survey first, then a written quote, then manufacture (typically 2–4 weeks for uPVC or 4–6 weeks for aluminium, from survey sign-off). The fitting itself usually takes 1 day for a straight swap in an existing opening. If you are in Pwllheli or Caernarfon, the same process and prices apply.
Do you need approval in Porthmadog?
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.
Specification choices for tilt and slide doors in Porthmadog
- Handle. An inside lever handle with a key lock, plus an outside pull handle or cylinder if the door is used from the garden.
- Material. uPVC for a lower price and shorter lead time, or aluminium for slimmer frames and powder-coated colours.
- Glass. Toughened or laminated double glazing, or triple glazing for extra warmth and sound reduction.
Questions about tilt and slide doors in Porthmadog
How soon can you survey in Porthmadog?
Surveys in the LL49 district are booked at a time that suits you, and we offer survey dates when we reply to your enquiry. After you approve the written quote, manufacture is typically 2–4 weeks for uPVC or 4–6 weeks for aluminium, from survey sign-off.
Is a tilt and slide door safe to leave tilted?
A tilt and slide door in the tilt position opens only a narrow gap at the top, so it is far harder to get through than an open door, but it is not locked. Close and lock the sash whenever the house is empty. When closed, perimeter locking points hold the sash like a window, and systems are available tested to PAS 24.
What is a tilt and slide door?
A tilt and slide door is a patio door whose opening sash can either tilt inward at the top for ventilation, or move forward and slide parallel across the fixed panel. The handle selects the mode. When closed, the sash is pulled back into the frame and sealed on all four sides, so it behaves more like a large window than a conventional slider.
How wide can a tilt and slide door be?
A tilt and slide door in our range is typically about 1.5 m to 3 m wide overall, with one opening sash and one fixed panel. The sash size is set by the hardware's weight limit, which is lower than for inline or lift and slide systems. If you need a wider opening, a standard aluminium slider or a lift and slide door is the usual alternative.

