Type how much do replacement windows cost into Google and you get numbers from every state and every decade. In Adelaide the price comes down to three things: the glass, the frame and the size of the opening, plus the labour to fit it properly.

This guide walks through each of those, then gives you example ranges, so you know roughly what you are looking at before you call anyone. The only exact number is the one on your free quote.

Factors That Influence Cost

Every answer to how much do replacement windows cost is built from the same handful of variables. Understanding them is the fastest way to understand the number.

• Glass or whole window. Replacing a pane in an existing frame is a fraction of the cost of a new window with a new frame.
• Glass type. Standard float glass is the cheapest. Toughened, laminated and double glazed units are made to order and cost more.
• Frame material. Aluminium is generally the most cost-effective new frame. Timber costs more to buy and to maintain.
• Size and thickness. Glass is priced by area, and larger panes need thicker glass to meet the Standards, which lifts the price further.
• Location and access. Ground floor windows are quick. Upstairs, high or awkward openings take longer and may need extra equipment.
• Safety glass requirements. Doors, low windows and wet areas must have Grade A safety glass, so the glass choice is sometimes made for you.
• How many windows. Several windows in one visit cost less per window than one call-out each.
• Urgency. An emergency board-up at 2am costs more than a booked visit, but it saves you a break-in or a night without a wall.

Glass Type (Standard, Toughened, Double Glazed)

Standard float glass

Everyday clear glass for windows where the Standards do not call for safety glass. It is stocked, cut to size on the day and the cheapest option by a margin. Most single pane replacements in older Adelaide homes use it.

Toughened safety glass

Up to five times stronger than ordinary glass and shatters safely, so it is required for doors, low windows and wet areas. Because every panel is cut, then toughened in a factory, it is made to order and costs more than float glass. Laminated safety glass, which holds together when broken, sits in a similar bracket and adds security and noise reduction.

Double glazed units

Two panes sealed with an insulating gap. The unit is the most expensive glass option, but if your frame is sound a fogged unit can be replaced on its own, which is far cheaper than a new window. Where you are choosing between single and double glazing for a new window, expect double glazing to add noticeably to the price and to pay some of it back in heating and cooling. Our double glazed windows page covers the options.

Frame Material (Aluminium, Timber)

Aluminium

The most common frame in Adelaide for good reason. It is strong, slim, low maintenance and usually the most affordable new frame. Standard sizes and finishes keep the cost down, while powder coated colours and thermally improved frames cost more.

Timber

Beautiful in a character home and often the only choice in heritage areas, but it costs more to supply, needs painting to last and takes longer to fit. Where the existing timber frame is sound, repairing it and replacing only the glass is the budget-friendly path. Where it is rotten, window frame replacement is the honest answer.

Window Size and Labour

Two windows with the same glass and frame can still land at different prices, because size and labour move the number in ways people do not expect.

• Size. Glass is priced by the square metre, and once a pane passes certain sizes the Standards call for thicker glass, which costs more again. A small bathroom window and a large living room pane are very different jobs.
• Labour. A single pane in a ground floor frame is typically an hour or two on site. A full window replacement, frame out and frame in, can take half a day or more per window.
• Access. Second storey windows, windows over stairwells or roofs, and openings behind fixtures take longer and may need ladders, platforms or two glaziers.
• Removal and disposal. Taking out the old window and disposing of the glass and frame is part of a professional quote. Check it is included when you compare.

Example Price Ranges

These are the brackets typical Adelaide jobs fall into, from the cheapest to the dearest. Every window is quoted individually, and the answer to how much do replacement windows cost for your home is always the free quote. The brackets will, however, tell you where your job sits.

How to Keep the Cost Down

If how much do replacement windows cost is the question keeping a job on hold, these five habits bring the number down.

• Repair before you replace. If the frame is sound, replace the glass, the seals or the hardware and keep the window. It is usually a fraction of the price.
• Do several windows at once. One visit, one set of measurements, one delivery. The per-window cost drops.
• Choose the right glass, not the fanciest. Standard float glass where the Standards allow it, safety glass where they require it.
• Check your insurance. Break-ins, storms and accidents are often covered. We provide the itemised quotes and reports insurers ask for.
• Get a written quote and compare like for like. Then show it to us. We beat any written quote by up to 10%.

The Short Answer on How Much Do Replacement Windows Cost

A standard pane in an existing frame is the cheapest job and usually done the same day. Safety glass and double glazed units cost more because they are made to order. A whole new window costs more again, from a small aluminium unit at the affordable end to a large timber or double glazed window at the top.

If that leaves you unsure which bracket you are in, a free on-site quote settles it in a few minutes, and our window replacement Adelaide page covers everything we fit.

Window Replacement Cost FAQs

Is it cheaper to replace the glass or the whole window?

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The glass, by a long way, as long as the frame is sound. A new pane in an existing frame is a fraction of the cost of a whole new window with a new frame.

How much do replacement windows cost if I only need the glass?

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A standard float glass pane is the cheapest job we do, priced by size and usually fitted the same day. Toughened, laminated and double glazed glass cost more because each piece is made to order.

Does double glazing cost a lot more than single glazing?

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Yes, upfront. A double glazed unit or window costs noticeably more than the single glazed equivalent, and pays some of that back through lower heating and cooling bills and a quieter home.

Do you charge for a quote?

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No. Most people asking how much do replacement windows cost just want a straight number, so quotes are free, carry no obligation and are usually given on the spot once we see the window.

How long does a window replacement take?

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A single pane is typically an hour or two. A full window replacement can take half a day or more per window. Emergencies are made safe first, 24/7, and reglazed as soon as the glass is available.

Will you beat another quote?

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Yes. Show us any written quote and we will beat it by up to 10%.