County Antrim · Northern Ireland

Sliding Doors in County Antrim

Is your old patio door in County Antrim heavy, draughty or grinding on its track? We can quote for modern sliding doors with smooth rollers and multi-point locks.

Guide from £1,795
9 towns covered
Postcode areas BT

uPVC patio doors across County Antrim

Sliding doors can have a raised sill for weather resistance or a low, flush track for near level access between floor and patio. Flush tracks need good drainage outside and some shelter, and on exposed elevations a slightly raised threshold usually keeps water out more reliably.

Replacing patio doors in the same opening usually takes about a day on site, longer for wide multi-panel systems or where heavy glass needs extra hands or lifting gear. The doors are made to the survey sizes first, and the lead time is confirmed in writing with the quote.

Lift-and-slide doors raise the panel off its seals when the handle is turned, so it glides easily, then lower it back onto the gaskets when closed. This allows very large, heavy panels with good weather sealing. Standard in-line sliders are lighter, simpler and usually cost less.

Security on sliding doors depends on multi-point hook locks that grip the frame, anti-lift blocks that stop panels being lifted off the track, internally glazed beads and an anti-snap cylinder. Older patio doors without anti-lift protection can sometimes be lifted out, so ask whether the system is tested to PAS 24.

Sliding patio doors opening from a living room onto a garden

Towns we cover for sliding doors in County Antrim

Choose your town for local details, nearby areas and the postcode districts we cover.

What applies in County Antrim

Technical Booklet V covers safety glazing in Northern Ireland, including glass in and around doors and low-level glazing where people could walk into it.

Listed buildings in Northern Ireland need listed building consent for most changes to historic windows.

County Antrim has its own coastline, so for homes and businesses near the sea, salt air and wind-driven rain are part of the brief. Salt and sand collect in sliding door tracks near the coast, wearing rollers and seals more quickly, so tracks need more frequent cleaning. Stainless running gear, a coating suited to marine exposure and a raised threshold help on exposed elevations facing the sea.

Large sliding panels are heavy and long, so city installations need planned access through the house, parking nearby and sometimes lifting equipment for upper floors or balconies. Flats need freeholder consent and planning permission, and acoustic glass helps on busy roads.

Guide prices

Guide prices inc VAT for typical jobs. Remote and island locations are quoted by arrangement. Your written quote fixes the price after measuring.
Typical job	Guide price inc VAT
Aluminium slider, 1800 mm wide	£2,695 – £3,495
Aluminium slider, 3000 mm wide	£3,995 – £5,095
Lift-and-slide, 4000 mm wide	£6,695 – £8,595
uPVC patio door, 1800 mm wide	£1,795 – £2,395

Choosing your sliding doors

Glass specification

Toughened low-E double glazing as standard, with triple glazing, laminated security glass, acoustic or solar-control glass available.

Flush or low threshold

A low-profile bottom track for near level access, paired with external drainage and used where there is some shelter.

Slimline aluminium sliders

Very narrow frames and interlocks for the widest view, powder coated in a range of colours, suited to large openings.

uPVC patio doors

A lower-cost in-line sliding door with chunkier frames, available in white, grey and woodgrain foils for standard openings.

Sliding Doors in County Antrim: questions

Why is my sliding door so hard to open?

A sliding door usually becomes stiff because of grit in the track, worn or seized rollers, or a panel that has dropped out of adjustment. Cleaning the track often helps, and rollers can sometimes be adjusted or replaced. If the frame has distorted or the panels are very heavy, replacing the doors is often the more lasting fix.

Can sliding doors have a level threshold?

Yes, many sliding door systems offer a low or flush bottom track for near level access. They need good external drainage and some shelter, because a flush track is less weather resistant than a raised sill. On exposed elevations, a slightly raised threshold is often the more reliable choice, and the survey checks which suits your patio.

What guarantee comes with sliding patio doors?

Manufacturer guarantees apply to the frames, coating, rollers, locks and sealed units, and the terms are confirmed in writing. Cover for rollers can depend on regular cleaning, so read the conditions. Guarantee terms for the installation are set out in writing with your quote, so you know exactly what is covered before you go ahead.

How secure are sliding patio doors?

Modern sliding patio doors can be secure when fitted with multi-point hook locks, anti-lift blocks, internally beaded glass and an anti-snap cylinder. Older doors without anti-lift protection are a known weak point. Asking for a system tested to PAS 24 and choosing laminated glass on ground-floor doors gives a practical security benchmark.

Which parts of County Antrim do you cover for sliding doors?

We cover the whole of County Antrim, including Belfast, Lisburn, Newtownabbey, Carrickfergus and Ballymena, and postcode areas BT. Building rules for sliding doors here follow the regulations for Northern Ireland. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.

Other glazing services in County Antrim

All glazing in County Antrim · Sliding Patio Doors across the UK

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