Sliding door replacement across County Antrim
Most homeowners choosing replacement sliding doors want the same things: more light, a clear view and a door that is easy to live with.
Does the old door in your County Antrim kitchen whistle in the wind or leave puddles on the sill? Worn seals and failed drainage are common reasons to replace rather than repair.
If your County Antrim home still has its original sliding patio door, look at the glass beads: if they are on the outside, a replacement will close off that weakness.
- 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.
- 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.
- 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.
Guide prices for replacement sliding doors in County Antrim
Pricing is transparent and does not change because you are in County Antrim. The ranges below cover a standard-height door, fitted, with VAT; options are itemised in your quote.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £3,695–£4,495 |
| 2.1 m | 2 panels | £3,995–£4,895 |
| 2.4 m | 2 panels | £4,295–£5,295 |
| 4.8 m | 4 panels | £6,995–£8,495 |
Every size is on the replacement sliding doors page.
Daylight and glass in County Antrim
In County Antrim the shortest day has roughly 7 h 12 min of daylight and the longest about 17 h 20 min. The noon sun sits near 12° above the horizon in winter and 59° 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.
Towns we cover in County Antrim
We survey and fit replacement sliding doors in 11 towns across County Antrim, including the BT1, BT27, BT37, BT38, BT39, BT40 postcode districts.
Approvals in Northern Ireland
In Northern Ireland, the Building Regulations (Northern Ireland) apply through your district council's building control service, with energy guidance in Technical Booklet F1. Work in Northern Ireland is by arrangement, and we confirm the approval route for your property at survey.
Questions about replacement sliding doors in County Antrim
Do you fit replacement sliding doors in County Antrim?
Yes, by arrangement. County Antrim is in an area we cover by arrangement: the survey is still free, and survey dates, delivery and any travel cost for delivery and fitting are confirmed in your quote before you order.
What if there is no proper lintel above my old door?
Occasionally an old door frame turns out to be carrying some load because the support above the opening is inadequate or missing. We check the head of the opening at survey and again when the old frame comes out. If extra support is needed, we explain why, what it involves and what it costs before any further work goes ahead.
How long does it take to replace a sliding patio door?
Replacing a two-panel sliding patio door typically takes one day, from removing the old door to sealing and trimming the new one. Larger doors, three- or four-panel sets and doors needing extra making good typically take one to two days. Manufacture comes first, typically 4–6 weeks for aluminium or 2–4 weeks for uPVC after you sign off the surveyed specification.
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.

