- Postcode district
- SO14
- 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
- Totton, Eastleigh, Romsey
- Building rules
- England
Why choose replacement sliding doors in Southampton?
Here is what to weigh up if you are considering replacement sliding doors for a home in Southampton:
Does the old door in your Southampton kitchen whistle in the wind or leave puddles on the sill? Worn seals and failed drainage are common reasons to replace rather than repair.
Before booking a survey for a Southampton flat, check your lease or title deeds and speak to the managing agent, factor or other owners, because doors in flats may need consent that houses do not.
- Multipoint locks, anti-lift devices and internally beaded glass close the security gaps that older patio doors commonly have, such as panels that can be lifted out.
- Because the opening stays the same size, a straight replacement avoids structural work, steel beams and a Building Regulations structural application.
- Most two-panel replacements are completed in a single day, so the house is secure again by the evening without the room being out of use for long.
How much sun will a door in Southampton get?
Sun angles matter for big glazed doors. Around Southampton, midday sun reaches about 63° in summer and drops to about 16° in winter. That low winter sun is free heat through south-facing glass; high summer sun is easier to shade with a roof overhang, and solar-control glass helps where there is none.
How much do replacement sliding doors cost in Southampton?
These are guide prices for fitted doors at a standard height, including VAT. They run from an entry-level system to a premium one at the same size; the survey confirms which suits your opening.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £3,695–£4,495 |
| 4.8 m | 4 panels | £6,995–£8,495 |
| 6.0 m | 4 panels | £8,295–£10,095 |
See every size on the replacement sliding doors page or try the guide price tool.
What happens when you order replacement sliding doors in Southampton?
We plan the job around your home in Southampton: survey first, then a written quote, then manufacture (typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off). The fitting itself usually takes 1 day for a straight two-panel swap; 1–2 days for larger doors. If you are in Totton or Eastleigh, the same process and prices apply.
Rules for replacement sliding doors in England
English Building Regulations treat a new or replacement external door in an existing home as a controlled fitting: it needs a U-value of 1.4 W/m²K or better (or Doorset Energy Rating band C) if more than 60% of it is glazed (Approved Document L), and safety glass in a critical location (Approved Document K). Compliance is arranged through a competent person scheme installer or a Building Control notification, so you get a certificate for your records.
Finishes and extras for replacement sliding doors
- uPVC replacement. A cost-conscious choice for a straightforward swap, available in white and foiled colours.
- Lower threshold. A reduced-height sill where floor and outside levels allow, with suitable drainage.
- New internal cill or board. A fresh window board or reveal lining to finish the inside neatly.
Questions about replacement sliding doors in Southampton
Do you fit replacement sliding doors in Southampton?
Yes. We survey and fit replacement sliding doors in Southampton and across Hampshire, including nearby Totton and Eastleigh. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
What happens to my old patio door?
We remove your old patio door and take it away for disposal as part of the job, and that is included in our guide prices, so there is nothing for you to arrange. If you would rather keep the old door, for example for a shed or greenhouse project, tell us before the fitting day and we will leave it safely on site.
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 building regulations approval to replace a patio door?
In England a replacement door is a controlled fitting, so it must meet the Building Regulations for energy and safety glazing. You do not apply in advance; instead the work is self-certified by a competent person scheme installer or notified to Building Control, which we arrange. In Scotland like-for-like replacement in a house usually needs no building warrant but must still meet the building standards.