- Postcode district
- BN43
- 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
- Worthing, Brighton, Burgess Hill
- Building rules
- England
Is a replacement sliding door a good fit for your home in Shoreham-by-Sea?
These are the points a surveyor will go through with you when you choose replacement sliding doors for a home in Shoreham-by-Sea:
Before booking a survey for a Shoreham-by-Sea 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.
If the existing opening in your Shoreham-by-Sea home is sound and a sensible size, simply replacing the door gives the biggest improvement for the least disruption.
- 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.
- 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.
- 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.
Sunlight, glass and orientation in Shoreham-by-Sea
Because Shoreham-by-Sea sees long summer days (about 16 h 31 min) and short winter ones (about 7 h 56 min), the elevation your door faces makes a real difference. With the midday sun at about 16° in winter, a south-facing door brings light well into the room; a west-facing door catches hot late-afternoon sun in summer.
How much do replacement sliding doors cost in Shoreham-by-Sea?
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 |
| 2.4 m | 2 panels | £4,295–£5,295 |
| 4.0 m | 3 panels | £6,095–£7,395 |
See every size on the replacement sliding doors page or try the guide price tool.
From survey to fitted door in Shoreham-by-Sea
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 Shoreham-by-Sea?
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.
- New internal cill or board. A fresh window board or reveal lining to finish the inside neatly.
- Aluminium replacement. A thermally broken aluminium slider with slim frames and a durable powder-coat finish.
Questions about replacement sliding doors in Shoreham-by-Sea
Do I need building approval for replacement sliding doors in Shoreham-by-Sea?
In England a replacement door is a controlled fitting, so compliance is arranged through a competent person scheme installer or Building Control; new openings need a Building Regulations application. We confirm the right route for your property at survey, so the paperwork is in place before fitting.
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.
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.
Is the survey free for a replacement door?
Yes, the survey for a replacement sliding door is free. We measure the opening, check its condition and the support above it, look at floor and outside levels, and talk through frame, glass and colour options. You then receive a written quote with the fixed price, and nothing is ordered until you confirm the surveyed specification in writing.

