- Postcode district
- TN23
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off
- Guide price
- From £3,295 inc VAT
- Nearby
- Tenterden, Hythe, Faversham
- Building rules
- England
Sliding door replacement in Ashford: what to know
These are the points a surveyor will go through with you when you choose replacement sliding doors for a home in Ashford:
If the existing opening in your Ashford home is sound and a sensible size, simply replacing the door gives the biggest improvement for the least disruption.
Considering a wider door for your Ashford home while you are replacing it? Weigh up the extra cost of structural work against the gain in glass before deciding.
- A thermally broken frame with modern double glazing must achieve 1.4 W/m²K or better in England for a door in an existing home with more than 60% glazing, which is far better than most old sliders.
- Slimmer modern frames often give a larger area of glass within the same opening, letting more daylight into the room than the old door did.
- Removal and disposal of your old patio door is included in our guide prices, so there is no separate skip or tip run to organise.
Daylight in Ashford and what it means for your glass
The midday sun over Ashford ranges from about 15° at the winter solstice to about 62° at midsummer. Low-angle winter light reaches further into a room through a tall door, which is one reason taller panels are worth considering; on south or west walls, pair them with solar-control glass.
Typical costs for replacement sliding doors around Ashford
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 Ashford home has been measured.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £3,295–£4,095 |
| 2.4 m | 2 panels | £4,295–£5,295 |
| 3.6 m | 3 panels | £5,595–£6,895 |
See every size on the replacement sliding doors page or try the guide price tool.
What happens when you order replacement sliding doors in Ashford?
Once the opening is measured, nothing is ordered until you sign off the specification. Lead time is typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off. Our fitters protect floors, remove the old door, install and seal the new one and leave the area clean — usually 1 day for a straight two-panel swap; 1–2 days for larger doors for a door like this.
Do you need approval in Ashford?
In England, a replacement sliding door is a controlled fitting under the Building Regulations. In an existing home, a door with more than 60% glazing must reach a U-value of 1.4 W/m²K or better (or a Doorset Energy Rating of band C) under Approved Document L, and glass in doors must be safety glazing under Approved Document K. We arrange compliance through a competent person scheme installer or by notifying Building Control, and you receive the certificate.
Choosing the specification
- Slimline upgrade. Narrow interlocks for the maximum glass area the existing opening allows.
- Lower threshold. A reduced-height sill where floor and outside levels allow, with suitable drainage.
- Aluminium replacement. A thermally broken aluminium slider with slim frames and a durable powder-coat finish.
Questions about replacement sliding doors in Ashford
Can you match other doors and windows in my Ashford 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.
Will the new door have a lower threshold?
A lower threshold may be possible on a replacement, depending on the floor level inside, the height of the patio or ground outside and how the opening was built. Low thresholds are typically 15–25 mm. A flush threshold needs a drainage channel outside so rain cannot run in. We check levels at survey and tell you what is realistic.
Do I need planning permission to replace a sliding door?
Replacing doors on a house is usually permitted development, so no planning application is needed, as long as the new doors are similar in appearance to the existing ones. Flats, listed buildings and properties covered by an Article 4 direction may need consent. Our planning guide explains more.
Can I get a bigger door in the same opening?
You can usually get more glass in the same opening, because modern frames are slimmer, but the overall door size stays roughly the same as the old one. Making the door wider or taller means widening the opening, which is structural work with a steel beam, calculations and a Building Regulations application. Our new openings page covers that.