County Antrim · Northern Ireland
Sash Windows in County Antrim
Homeowners and landlords in County Antrim can get a written sash window quote that fixes the price for the joinery, glass, colour and hardware shown.
- Guide from £1,495
- 9 towns covered
- Postcode areas BT
Double glazed sash windows for homes and businesses in County Antrim
A traditional box sash hides cast-iron or lead weights inside the side boxes of the frame, connected to each sash by cords running over pulleys. Modern sash windows often use spiral or spring balances instead, which take up less depth and suit uPVC and some new timber designs without weight pockets.
Slim double glazed units let sash windows keep fine glazing bars and traditional proportions while improving thermal performance. Bars can be true divisions with individual units, or bars bonded to both faces of a single unit with a spacer bar between the panes, which looks very similar from a short distance.
Sash window prices depend on size, timber or uPVC, whether you replace the whole frame or just the sashes, the glazing bar pattern, horns and mouldings, glass type and the paint colour. Listed or conservation work that needs matching details costs more. See the guide prices for typical ranges.
Heavy double glazed sashes need matching weights. When single glazed sashes are swapped for double glazed ones in an existing box, the old weights are usually too light, so the glazier re-weighs each sash to stop it dropping or creeping up, and checks the pulleys can carry the load.
Towns we cover for sash windows 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.
For replacement doors and windows in Northern Ireland, PAS 24 products are a sensible choice for security.
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-laden wind and driving rain shorten the life of paint on exposed sashes, so coastal timber windows benefit from durable timbers, good factory coatings and regular inspection. Brass or stainless sash furniture resists corrosion better than plated steel near the sea.
Terraced streets and conservation areas often control sash details on front elevations, so check requirements before ordering. Flats need planning permission and freeholder consent, and upper-floor sashes are usually fitted from inside, with careful protection of communal stairs and hallways.
Guide prices
| Typical job | Guide price inc VAT |
|---|---|
| uPVC sliding sash, 900 × 1500 mm | £1,495 – £1,995 |
| Timber-effect uPVC sash, 900 × 1500 mm | £1,795 – £2,295 |
| Painted timber sash, 900 × 1500 mm | £2,595 – £3,295 |
Choosing your sash windows
Spring-balanced timber sash
Timber sashes running on concealed spring balances, giving a slimmer frame where weight pockets are not needed or space is tight.
Heritage glass options
Slim double glazing, low-E coatings and textured glass that looks like old cylinder glass for sensitive elevations.
Tilt-in sashes
Sashes that tilt inwards for cleaning upper-floor glass from inside, and can help provide an escape opening.
Glazing bar patterns
Two over two, six over six or other bar layouts, as true divisions or bars bonded to the glass faces.
Sash Windows in County Antrim: questions
How long does it take to replace sash windows?
Fitting a single sash window usually takes most of a day, longer where the box frame is removed or plaster disturbed. A whole house typically takes several days on site. The windows are made to order first, and timber sashes with special details take longer to manufacture; the lead time is confirmed in writing with your quote.
How much do sash windows cost?
The cost of sash windows depends on size, material, whether you replace the whole frame or only the sashes, the glazing bar pattern, the glass and the finishing details such as horns and mouldings. Timber usually costs more than uPVC, and listed building work costs more again. See the guide prices for typical ranges; the written quote fixes your price.
Should I repair or replace my sash windows?
Repair suits sashes where the timber is mostly sound and only cords, beads or small sections need attention, especially in listed or conservation properties. Replacement suits frames with widespread rot, distortion or repeated failures, or where you want double glazing and better security. A survey of each window shows which approach makes sense, and we can quote either.
Will double glazed sashes be too heavy for my existing frame?
Double glazed sashes are heavier than single glazed ones, so the box frame, pulleys and weights must cope. When new sashes go into an existing box, the glazier checks the pulleys and adds or replaces weights so each sash balances. If the box is weak or rotten, a new frame is the better option, and the survey will tell you.
Which parts of County Antrim do you cover for sash windows?
We cover the whole of County Antrim, including Belfast, Lisburn, Newtownabbey, Carrickfergus and Ballymena, and postcode areas BT. Building rules for sash windows 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
- Replacement Glass in County Antrim
- Misted Glass Repair in County Antrim
- Emergency Glazing in County Antrim
- Safety Glass in County Antrim
- Window Repairs in County Antrim
- Window Film in County Antrim
- uPVC Windows in County Antrim
- Aluminium Windows in County Antrim
- Composite Doors in County Antrim
- Bifold Doors in County Antrim
- Sliding Doors in County Antrim
- Secondary Glazing in County Antrim
- Roof Lanterns in County Antrim
- Glass Balustrades in County Antrim
- Frameless Glass in County Antrim
- Shower Screens in County Antrim
- Glass Splashbacks in County Antrim
- Bespoke Mirrors in County Antrim
- Glass Roofs in County Antrim
- Shopfront Glazing in County Antrim
- Curtain Walling in County Antrim
- Glass Partitions in County Antrim
- Property Glazing in County Antrim
Get a written quote in County Antrim
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.