Sash Window Prices in the UK: Full Cost Breakdown & What Affects Pricing
How much do sash windows cost today?
And why do prices vary so wildly between quotes?
In this pricing guide, we’ll show you exactly what affects the cost, what’s worth paying for, and what to avoid.
From materials and size to glazing and installation, this is your no-fluff breakdown of what drives sash window pricing.
What factors drive the price up?
What Increases the Cost of a Sash Window Replacement?
Several elements can increase the overall cost, particularly when the design becomes more specialist or the materials are upgraded.
- Premium timber such as treated redwood, hardwoods or Accoya
- Shaped heads including swept, radius or full arches
- Larger window sizes
- Individually glazed sashes
- Special glazing such as satin, patterned, stained, leaded or toughened
- Multiple glazing bars
- Dual or non standard paint colours
- Specialist internal or external architraves and mouldings
- Internal linings and window boards
- Scaffolding for dormers or difficult access areas
- Additional security locks such as sash stops
What brings sash window prices down?
- Smaller sized windows
- Straight forward box sash window design (no curves or arches)
- Simple glazing (no shaped glass)
- Fewer glazing bars
- Standard paint (white, one colour)
- No internal linings, mouldings, or extras
Why are some companies so expensive?
Some firms charge eye watering figures because their costs are driven by premium materials, specialist joinery and layers of overheads that do not always translate into better work. A well run, FENSA registered local business like ours keeps things transparent, prioritises quality and never inflates for the sake of it.
Why are some companies so cheap?
A low-cost alternative can cost you more in the future
Where do our prices typically fall?
Our pricing is in the mid to high range, reflecting craftsmanship and material quality
What Some Sash Window Companies Charge Extra For
We price transparently and include these in your quote unless otherwise specified.
Lifetime Cost vs Initial Price
Cheap windows may need full replacement in under 5 years.
Ours are designed to last 30+ years with proper care. Long term, that’s the better investment.
Historical Pricing Trends
Cheap windows may need full replacement in under 5 years.
Ours are designed to last 30+ years with proper care. Long term, that’s the better investment.
Financing Options
We don’t currently offer in-house financing, but many clients use:
- Home improvement loans
- Green energy grants.
White interior / exterior
£2,650.00 + VAT
White interior / exterior
£5,000.00 + VAT
White interior / exterior
£7,650.00 + VAT
Examples and price ranges
These three examples give a simple guide to what new sash windows typically cost across London and Surrey. These are only indicative figures because timber, glazing, detailing and access can all change the final price. A proper survey is the only way to confirm an accurate estimate. We provide local FENSA-registered expertise and can offer a clear, no-obligation quote when we visit your home.
Are there hidden costs?
We don’t believe in surprises. That said, extra costs may apply if:
- Windows are unusually large
- A scaffold is required, e.g for Dormer windows.
Common Pricing Questions (FAQs)
No, never, we only fit our windows and use our materials.
No, our standard windows already comply with conservation areas, so no extra charge.
Possibly, all depending on the size of the project.
Pricing Table
| Window Type | Features | Price (ex. VAT) |
|---|---|---|
| Standard Box Sash Window | White, no extras | £2,650.00 |
| Standard Box Sash Window With Swept Head | White, no extras | £2,881.00 |
| Standard Box Sash Window | Satin Glass in Both Sashes | £2,770.00 |
Is it worth it?
Now you know what impacts the cost of sash windows… and you’ve seen why going cheap might cost more in the long run.
At Novells, we’ve been crafting sash windows for over 20 years, and we’re here to help you make the right long-term decision.
For Period homes, sash windows aren’t just decorative, they’re essential. While you can go cheap, doing it right the first time protects your home’s value and avoids frequent repairs or replacements.
Got a question about your new sash windows?