How Much Does a Window Replacement Cost?

26 February 2025

Are you thinking about replacing your windows but trying to understand the cost? You're not alone. Window replacement is a significant investment, and understanding new window costs and what influences the price can help you make smart decisions for your home.



Let's break down everything that affects window costs, from materials to installation.

What Influences Window Replacement Price?

The average cost of window replacement depends on several factors, and knowing these can help you budget effectively. Whether you're replacing a single window or updating your entire home, the type of windows, type of glass, window frame, and style all play crucial roles in determining the cost of windows.


Frame Materials

At JKG Windows, we offer two distinct materials for our window units: aluminium and uPVC windows. Each comes with different looks, benefits and price points.


Aluminium vs uPVC

UPVC frames are often the most cost-effective choice for window replacement. They provide excellent value while delivering energy efficiency and requiring low maintenance. These frames typically last between 20-30 years and maintain their appearance with basic care. The low cost of uPVC windows doesn't compromise quality with modern manufacturing techniques ensuring these windows offer reliable performance and good looks.


While aluminium windows represent a more significant initial investment, their longevity often justifies the cost. These frames can last over 40 years and offer unmatched strength. This allows for larger window panes and better views. The slim profiles are prized for their aesthetics and are often seen in modern homes.

Glazing Options

The choice between double and triple glazing significantly impacts your final window prices. Double glazed window remains the most popular choice for most homeowners, substantially improving noise reduction and heat retention.

Double glazing costs less than triple glazing, but triple glazing adds an extra pane of glass to increase thermal performance. This addition could increase your energy savings enough to offset the extra cost. Your location, property type, budget and existing window efficiency should guide this decision.

Installation and Labour Costs

Professional installation is crucial in making sure your windows perform. Labour costs vary based on complexity and quantity. We only use the best installers who ensure proper fitting, sealing, and finishing. Installation of standard sizes typically takes less time than custom sizes or complex styles.


Size and Quantity

The number of windows being replaced affects the overall cost. Replacing multiple windows at once is more cost-effective per unit than single-window replacements.


Long-Term Value

When weighing the cost of replacement windows, looking beyond the initial price tag is essential. New windows are an investment that pays dividends in multiple ways over the years ahead.


Modern windows significantly reduce heat loss. This improved thermal efficiency typically leads to lower energy bills, which is even more important with today's high energy costs. Many homeowners, especially those changing from single glazing notice the difference not just in their bills but in the comfort of their living space, with fewer cold spots and draughts throughout their home.


The impact on property value shouldn't be underestimated either. Quality windows can significantly increase your home's market appeal and value.


Maintenance requirements also decrease with new windows. Today's materials and manufacturing methods mean less upkeep is needed compared to older windows. uPVC frames won't need painting and don’t split, peel, flake or stain like timber windows, while modern aluminium windows resist corrosion and are incredibly strong. This reduction in maintenance saves you time and money.


Perhaps most importantly, new windows improve your daily living and comfort. Better noise reduction means a quieter home, improved security features provide peace of mind, and energy efficiency makes your home warmer.



Our Window Styles

When choosing new windows, the style of window you select significantly impacts both cost and functionality. At JKG Windows, we offer a comprehensive range of options to suit different styles and budgets.


  • Casement Windows - The most common and typically most affordable option, casement windows offer straightforward operation and good ventilation.
  • Flush Sash Windows – These windows are casement windows that sit flush within the frame, costing more than standard casements but offering a sleek appearance.
  • Sliding Sash Windows – These windows are perfect for listed buildings, heritage buildings and conservation areas, or for bringing a traditional look to modern homes.
  • Tilt and Turn Windows - Versatile operation allows these windows to open in different ways and makes these a practical choice.
  • Georgian Windows - The distinctive grid pattern adds to manufacturing costs but provides a classic 18th-century design.
  • Leaded Windows - These decorative options sit at the higher end of the price range due to the intricate craftsmanship.


Making Your Decision

Choosing the right windows involves balancing initial costs against long-term benefits. It's a good idea to consider your home's style, your budget, and your long-term plans. While price is important, the cheapest option isn't always the best value. Focus on finding windows that offer the right combination of performance, style, and affordability for your needs.


The JKG Windows Buying Process

We make buying windows from us as simple as possible. Here are the steps we take to make sure you receive the best option.

  1. Initial Consultation: Discuss your needs and explore options
  2. Site Survey: Professional measurement and assessment
  3. Detailed Quote: Transparent pricing with no hidden costs
  4. Installation: Expert fitting by qualified professionals
  5. Aftercare: Comprehensive 10-year warranty and support


New Windows from JKG

While window replacement represents a significant investment, understanding the factors that influence the cost of new windows helps you make informed decisions. At JKG Windows, we believe in expert advice, transparent pricing and helping you find the best window replacement for your home and budget.



We offer all our customers a free, no-obligation quote. To chat with us about your home, you can call us on 01252 950 757, email us at info@jkgwindowsanddoors.co.uk, or use our online contact form.

26 February 2025
Tilt and turn windows have emerged as one of the most innovative and practical solutions for UK homes. Whether renovating a period property or updating a modern home, these versatile windows offer unique advantages that make them a popular choice. We’ve written this piece to explain exactly what tilt and turn windows are, what they can add to your property, and what we offer with these unique windows.