How Much New Window Cost?

How Much Do New Windows Cost

A clear UK guide to new window prices

New window cost varies more than most home upgrades because the spec choices have a bigger impact on the final price than the size of the window itself. The same opening can take a £400 uPVC casement or a £2,000 timber sash, and the right answer depends on what you want from the window rather than what your neighbour paid.

These price bands reflect typical UK fitted ranges. Final pricing comes from the survey, where we factor in the exact spec, glazing, hardware and any site work.

New window cost by material

uPVC windows price

  • uPVC casement windows £400 to £800 per window fitted
  • uPVC sash windows £600 to £1,200 per window fitted
  • uPVC tilt and turn windows £600 to £1,000 per window fitted
  • uPVC flush casement windows £500 to £900 per window fitted
  • uPVC bay windows £1,800 to £3,500 fitted for the full bay assembly

The 850 monthly UK searches for uPVC windows price reflect ongoing interest in the most affordable window material. uPVC accounts for around 80% of new UK window installations because of the cost balance.

Aluminium windows price

  • Aluminium casement windows £700 to £1,200 per window fitted
  • Aluminium tilt and turn windows £1,000 to £1,800 per window fitted
  • Aluminium sash windows £1,200 to £2,000 per window fitted
  • Aluminium flush casement windows £800 to £1,400 per window fitted
  • Aluminium bay windows £3,000 to £5,500 fitted for the full bay assembly

Aluminium price points sit 50 to 80% above uPVC equivalents, reflecting the slim sightlines, larger pane capability and contemporary aesthetic that aluminium delivers.

Timber windows price

  • Timber casement windows £900 to £1,800 per window fitted
  • Timber sash windows £1,400 to £2,800 per window fitted
  • Timber flush casement windows £1,000 to £2,000 per window fitted
  • Timber bay windows £4,000 to £7,500 fitted for the full bay assembly

Timber price points reflect the higher material cost, more complex manufacturing and authentic period appearance that suits listed buildings and conservation areas.

Window replacement cost by project type

Most UK homeowners think about window costs at the project level rather than per-window:

  • Single window replacement typically £400 to £2,000 fitted depending on style and material
  • Front elevation only (3 to 5 windows) typically £2,000 to £8,000 fitted
  • Half-house replacement (5 to 8 windows) typically £4,000 to £12,000 fitted
  • Full-house replacement (8 to 14 windows) typically £6,000 to £20,000 fitted
  • Period property restoration with timber sash windows £8,000 to £30,000 fitted

 

The 3,300 monthly UK searches for window replacement cost reflect how often homeowners scope budgets at the project level before committing.

Local service and UK reach

We fit windows across an 80 km radius of Rushden, covering:

  • Northampton, Bedford, Milton Keynes, Kettering, Cambridge
  • Peterborough, Rugby, Hemel Hempstead, Wellingborough, Corby
  • Daventry, Towcester, St Neots, Higham Ferrers, Raunds
  • Hitchin, Stamford, Stevenage, Luton, Market Harborough

UK-wide delivery covers supply-only orders if you’ve got your own installer arranged.

More information

How Much Do New Windows Cost FAQs

How much do new windows cost in the UK?

New windows in the UK usually cost around £400 to £2,000 per window fitted, depending on the frame material, window style, size, glazing specification, colour and installation requirements. uPVC casement windows are often at the lower end of the range, while aluminium, timber, sash, bay, tilt and turn and flush casement windows usually cost more.

How much is a full house of new windows?

A full house of new windows can vary widely in price depending on the number of windows, property type, frame material and glazing specification. As a guide, a standard three or four-bedroom home with several replacement windows may cost from around £6,000 to £20,000 fitted, with uPVC usually costing less than aluminium or timber. Period properties, sash windows and complex bay windows can increase the total cost.

What is the typical uPVC windows price?

uPVC window prices depend on the style and specification. As a guide, fitted uPVC casement windows often cost around £400 to £800 per window, uPVC sash windows around £600 to £1,200, uPVC tilt and turn windows around £600 to £1,000, uPVC flush casement windows around £500 to £900, and uPVC bay windows around £1,800 to £3,500 for the full bay assembly.

How much do aluminium windows cost?

Aluminium window prices vary by style, size, glazing and colour. As a guide, fitted aluminium casement windows often cost around £700 to £1,200 per window, aluminium tilt and turn windows around £1,000 to £1,800, aluminium sash windows around £1,200 to £2,000, and aluminium bay windows around £3,000 to £5,500 for the full bay assembly.

How much do timber windows cost?

Timber window prices are usually higher than uPVC and aluminium because of the material, manufacturing process and traditional appearance. As a guide, fitted timber casement windows often cost around £900 to £1,800 per window, timber sash windows around £1,400 to £2,800, and timber bay windows around £4,000 to £7,500 for the full bay assembly. Timber is often chosen for period homes, listed buildings and conservation areas.

What is the window replacement cost for a single window?

Single window replacement usually costs around £400 to £2,000 fitted, depending on the frame material, window style, size, glass type and installation details. Replacing one window can sometimes work out more expensive per window than a larger project because survey, travel and installation setup costs are spread across fewer units.

Why do two similar-looking windows have different prices?

Two similar-looking windows can have different prices because the specification behind them may be different. Frame material, glazing type, energy performance, security hardware, colour finish, opening style, handle choice, trickle vents, trims and the amount of site preparation can all affect the final cost.

Is supply only cheaper than supply and fit?

Supply only is usually cheaper upfront because it covers the windows themselves without installation. Supply and fit costs more because it can include measuring, installation, sealing, trims, making good, waste removal and project paperwork. Many homeowners choose supply and fit because it gives one point of responsibility for the product and installation.

Can I get a free quote for new windows?

Yes. Homeefe offers quotes for new and replacement windows across Rushden, Northamptonshire and surrounding areas within our approximate 80 km service area. Your quote can include an itemised breakdown of window type, frame material, glazing specification, colour, hardware and installation details, so you can compare options before deciding.

Are energy-efficient windows worth the extra cost?

Energy-efficient windows can be worth the extra cost if your current windows are old, draughty, single glazed or poorly performing. Modern double glazed or triple glazed windows with Low-E glass, effective seals and insulated frames can improve comfort and help reduce heat loss. The exact value depends on your home, heating system, energy use and the specification you choose.

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What changes the price band

Several factors move a project up or down between the bands:

  • Window size with larger windows costing more per unit
  • Frame material with uPVC cheapest, aluminium mid-range, timber most expensive
  • Window style with casement cheapest, sash and bay configurations costing more
  • Glazing spec with triple glazing adding 20 to 30% over double glazing
  • Colour and finish with custom RAL colours and wood-grain foils adding 10 to 20%
  • Security upgrades including PAS 24 certification and Secured by Design accreditation
  • Acoustic glazing for soundproof windows in noisy locations
  • Hardware spec with premium handles, hinges and locks adding cost
  • Site work including widening openings, structural work and disposal of old windows

 

Adding triple glazing, acoustic-laminated glass, custom colours and premium hardware can push a project into the next band. We itemise all these during the quote stage so you can see exactly where the cost sits.

Cost by window style

Style affects price as much as material does:

Casement window cost

The most affordable window style across all materials. The simple side-hinged design uses less material and manufacturing time than other window types.

Sash window cost

15 to 30% more than equivalent casement windows because of the more complex sliding mechanism and traditional detailing.

Bay window cost

3 to 5 times the cost of a single window because of the multiple windows in the bay assembly plus the structural support work needed for the projecting frame.

Tilt and turn window cost

10 to 25% more than equivalent casement windows because of the more complex dual-function hardware.

Flush casement window cost

5 to 15% more than standard casement windows because of the more complex frame engineering needed to deliver the flush appearance.

Bow window cost

Similar to bay window cost, with the curved profile sometimes adding 10 to 20% over angled bay equivalents.

Energy efficiency upgrades

Spec choices that improve energy performance:

  • Low E glass standard across our double and triple glazed units (no extra cost)
  • Triple glazing adds 20 to 30% over double glazing equivalents
  • Argon gas filling standard across our sealed units (no extra cost)
  • Warm edge spacer bars standard across our sealed units (no extra cost)
  • Krypton gas filling available as upgrade for marginal performance gain
  • A+ and A++-rated configurations add 5 to 15% over A-rated standard

Energy efficient upgrades typically pay back over the years through reduced heating bills.

Supply only versus supply and fit

Supply-only lowers the upfront spend, but you organise the survey, fitting and Building Regulations compliance separately. Best for trade installers and DIY projects.

Supply and fit gives you:

  • One point of responsibility for the whole project
  • FENSA-registered installation confirming Building Regulations compliance
  • Right paperwork for future house sales
  • 10-year guarantee on the installation and components
  • Insurance-Backed Guarantee protecting your investment

The FENSA certificate stays with the property and is often requested during conveyancing. Most homeowners choose supply and fit for the single point of responsibility.

A simple budgeting plan

Four steps to land the right windows at the right price.

  1. Set priorities including energy efficiency, security, style and budget
  2. Pick a material from uPVC, aluminium or timber
  3. Choose details from window style, glazing spec, colour and hardware
  4. Get a free no-obligation quote so we can survey, confirm the spec and place your project in the right price band

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