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How Much Do New Windows Cost in the UK?

uPVC Casement Windows & Composite Door in St Mary's Island

Replacing your windows is one of the best investments you can make in your home, improving energy efficiency, security, kerb appeal, and comfort.

But how much should you expect to pay?

The answer depends on several factors, including the size of your property, the window style, the frame material, and the complexity of the installation.

As a general guide, homeowners can expect to pay between £500 and £1,200 per window, fully supplied and installed, while replacing all the windows in a typical three-bedroom home usually costs between £4,500 and £9,000.

What Affects the Cost of New Windows?

No two window replacement projects are exactly the same, which is why prices can vary considerably.

The main factors that influence the cost include:

  • The number of windows being replaced
  • The size of each window
  • The window style (casement, sash, bay, flush sash, etc.)
  • The frame material
  • The glazing specification
  • The colour and finish
  • Installation requirements

A professional survey is always the best way to receive an accurate quotation tailored to your home.

Which Window Material Is Most Affordable?

uPVC Windows

For most homeowners, uPVC windows offer the best balance of affordability, energy efficiency and low maintenance.

Modern uPVC windows are:

  • Excellent value for money
  • Highly energy efficient
  • Secure with multi-point locking
  • Easy to maintain
  • Available in a wide range of colours and finishes

White uPVC casement windows are generally the most cost-effective option.

White Casement Windows in Strood

Aluminium Windows

Aluminium windows are a premium choice and typically cost more than uPVC.

However, they offer:

  • Slimmer frames and larger glass areas
  • Contemporary styling
  • Exceptional strength and durability
  • Long service life
  • Low maintenance

They’re ideal for homeowners looking for a sleek, modern appearance.

windows and doors company in kent

Does Window Style Affect the Price?

Yes. Simpler window styles generally cost less to manufacture and install than more complex designs.

For example:

  • Casement windows are usually the most affordable.
  • Flush sash windows provide a traditional appearance with a small increase in cost.
  • Sliding sash windows require more components and specialist manufacturing.
  • Bay and bow windows are typically the most expensive because they consist of multiple window units and require more complex installation.

Choosing the right style is about balancing your budget with the appearance and character of your home.

White uPVC Bay Windows in Strood

Are New Windows Worth the Investment?

Although replacing your windows requires an upfront investment, the long-term benefits often outweigh the initial cost.

New windows can help:

  • Improve energy efficiency
  • Reduce heat loss
  • Lower energy bills
  • Improve home security
  • Reduce outside noise
  • Increase kerb appeal
  • Add value to your property

If your existing windows are draughty, difficult to open, or showing signs of condensation between the panes, replacement windows could save you money in the long run.

How Can You Get the Best Value?

When comparing quotations, don’t focus solely on the lowest price.

Instead, make sure your quotation includes:

  • A full home survey
  • Supply and installation
  • Removal of old windows
  • Energy-efficient glazing
  • High-security locking systems
  • FENSA or CERTASS certification
  • Manufacturer and installation guarantees

Choosing an experienced, reputable installer gives you confidence that your new windows will perform as expected for many years.


FAQs

How much do new windows cost for a 3-bedroom house?

As a general guide, replacing the windows in a typical three-bedroom home costs between £4,500 and £9,000, depending on the window style, material and specification.

Are uPVC windows cheaper than aluminium?

Yes. uPVC windows are generally the most affordable option, while aluminium windows cost more due to their premium materials and slimmer frame design.

Is it cheaper to replace all windows at once?

In many cases, yes. Replacing all your windows in one project can reduce installation costs and minimise disruption compared with replacing them individually over several years.

Do coloured windows cost more?

Typically, yes. Popular finishes such as anthracite grey or woodgrain effects usually carry a small premium compared to standard white uPVC.

How long do new windows last?

High-quality uPVC windows can last 20–30 years or more, while aluminium windows can often last 40 years or longer with minimal maintenance.

Looking for Replacement Windows in Kent?

At Medway Windows & Doors, we supply and install high-quality uPVC and aluminium windows that are designed to improve your home’s energy efficiency, security and appearance.

Whether you’re replacing a single window or upgrading your entire property, our experienced team can help you choose the right solution for your home and budget.

Get in touch today for a free, no-obligation quote.

📞 Call us today on 01634 931 888
📧 Email info@medwaywindowsanddoors.co.uk

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