Replacement windows in Northern Ireland: what really sets the price
There is no fixed price for replacement windows in Northern Ireland, because every window is made to order for its opening. Two choices set the starting point: double or triple glazing, and supply only or supplied and fitted. Size, opening style, colour and ventilation move the price from there.
How much does double glazing cost in Northern Ireland?
The honest answer is that it depends on the windows you want. A price for “a replacement window” only means something once you know the size, the glazing and what the job includes. We make every window to order, so there is no stock size and no standard price to publish.
We make our uPVC windows in Ballymoney and supply them across Belfast and Northern Ireland. You can see the range on our uPVC windows Belfast page. The rest of this guide shows what each choice does to the quote, so you can settle it before you ask.
A strong double glazing specification is the best balance of cost and performance for many homes. Triple glazing typically costs 10 to 20% more than good quality double glazing.
Supply only has the lower price for the windows, because the fitting, the removal of the old windows, making good and the waste stay with you.
Size, opening style, ventilation, colour and finish are specified window by window, which is why they are worth settling before you ask.
What goes into a window quote
We do not publish a price list, because a figure given without the windows and the openings is a guess. What we can show you is what a quote is built from, so you can decide each point before you ask and compare two quotes line by line.
| Choice | Your options | How it shows up in the quote |
|---|---|---|
| Size and number | Made to measure for each opening, from one window to a whole house | There is no stock size list, so the quote is built around your openings. Bigger openings and specialist styles change the manufacturing and the hardware. |
| Glazing | Double or triple glazing, with Low-E glass and gas fill options | One of the biggest moves in the price. Triple glazing typically costs 10 to 20% more than good quality double glazing. |
| Opening style | Casement, flush or sash-style | The style sets the frame, the hardware and the look from the street. |
| Ventilation | Ventilation options on the frame | Good airflow helps reduce condensation without making rooms feel cold. Ask what is standard and what is an upgrade. |
| Security hardware | Multi-point locking, strong hinges, quality handles | Ask what is included as standard. Quotes often look similar until you compare the detail. |
| Colour and finish | White, anthracite, woodgrain or another foiled option | Colour is fixed at order, before the windows are made. Foiled colours and premium finishes can change lead times and the specification. |
| Service | Supply only, or supplied and fitted | Supplied and fitted adds the fitting. Ask what it includes, such as removal of the old windows, making good and waste. |
Casement, flush or sash-style: which suits your house?
Belfast homes range from terraces and period properties to modern suburbs and new builds, so the right style depends on the house as much as the budget. Style changes the frame and the hardware, which is why it belongs in your brief from the start.
| Your house | Usually suits | Why |
|---|---|---|
| Terrace or period property | Sash-style | A good fit where heritage style matters, with modern performance upgrades. |
| Modern suburb or new build | Flush | Clean lines that suit modern homes and can also work well in traditional settings. |
| Most other homes | Casement | A versatile option with strong sealing and practical everyday use. |
See every option on our uPVC windows page, or the sash windows page if period character matters most.
Send us photos and rough sizes, and we will price exactly that
Supplied and fitted, or supply only. Photos of each elevation and approximate measurements are enough to start.
Build your window brief before you ask for a quote
Pick the options that fit your windows and this page writes a short brief you can read out on the phone or paste into our contact form. It is a checklist, not a quotation: nothing you choose here is sent anywhere or stored.
- Choose your options and your brief builds here.
This is a checklist, not a quotation. Nothing you choose is sent or stored.
Why two quotes for the same windows can differ
A cheaper quote is often a different specification, not a better deal. Before you compare the totals, check that both quotes include each of these.
Not sure whether the third pane is worth it for your house? Our triple glazing guide covers what it does and when it pays back, and our double glazing guide for Belfast covers the basics.
Supply only or supplied and fitted: what changes
You can buy our windows two ways. Supplied and fitted covers the fitting as well as the windows. Supply only suits trade customers and homeowners who already have an installer: the windows are made to the sizes and specification you give us, and the survey, fitting and waste stay with you.
On a supply only order the sizes you give us are the sizes we build, so measure carefully before you order. Trade buyers can read how our supply only uPVC windows and doors service works.
Window prices in Northern Ireland, answered
How much do replacement windows cost in Northern Ireland?
It depends on how many windows you need, their size, the glazing, the opening style, the colour and whether you choose supply only or supplied and fitted. Every window is made to order, so we do not publish a price list. Send photos and rough sizes, or call 028 2769 8392, and we will price your house.
Is triple glazing worth the extra cost in Northern Ireland?
Triple glazing typically costs 10 to 20% more than good quality double glazing. For many Belfast homes a strong double glazing specification is the best balance of cost and performance. Triple suits exposed locations, outside noise or maximum comfort, and our triple glazing guide covers when it pays back.
Is supply only cheaper than supplied and fitted?
Supply only has the lower price for the windows, because the survey, fitting, removal of the old windows, making good and waste all stay with you. Supplied and fitted covers the fitting as well. Compare the two on what is included, not on the total alone.
Why is one window quote so much cheaper than another?
Often it is a different specification, such as the glazing type, spacer bars, hardware or sealing, or the quote leaves out removal and finishing work. Ask each supplier to price the same list, then compare line by line.
Can I get a price without exact measurements?
Yes. Photos of each elevation, rough sizes and your glazing and colour preferences are enough for a first conversation. The window brief builder on this page writes them up for you to paste into our contact form or read out on the phone.
Do you supply replacement windows in Belfast?
Yes. We manufacture uPVC windows in Northern Ireland and supply across Belfast and surrounding areas, as supply only or supplied and fitted depending on your project.
Get a price for the windows you actually want
Send us photos, rough sizes and your glazing and colour preferences, and we will price it supplied and fitted or supply only. Hurricane Windows & Doors has over 30 years of experience making windows and doors in Ballymoney, and we supply windows across Belfast and Northern Ireland.
Call 028 2769 8392 or email info@mrworxltd.com · Unit 11a Ballybrakes Business Park, Ballymoney BT53 6LW