How Much Do New Windows Cost?
The price to replace windows depends mainly on the frame material, window style, and installation complexity. Popular frame materials include uPVC, timber, and aluminium—each with its own benefits and cost points.
uPVC windows offer strong insulation and affordability, making them a common choice. Timber provides unmatched traditional aesthetics and excellent thermal properties but needs more maintenance. Aluminium frames are more expensive but are valued for their sleek, modern look and durability.
Window styles range from budget-friendly casements to pricier, classic sash windows. Energy-efficient glazing options can increase upfront costs but save money on heating bills over time.
Average Prices of New Windows in the UK (2025)
Costs can vary widely by material, size, and style. For a typical three-bedroom home, full window replacement costs may range from £1,600 to £17,250 depending on these factors.
| Material | Size | Typical Price Per Window |
|---|---|---|
| uPVC | Small | £160 – £990 |
| Medium | £300 – £1,365 | |
| Large | £530 – £1,740 | |
| Aluminium | Small | £210 – £1,290 |
| Medium | £460 – £1,490 | |
| Large | £700 – £1,915 | |
| Timber | Small | £240 – £1,485 |
| Medium | £300 – £1,600 | |
| Large | £345 – £1,860 |
Window Styles and Costs
| Style | Price Range | Notes |
|---|---|---|
| Casement | £200 – £2,250 | Affordable, versatile, good airflow |
| Sash | £700 – £2,860 | Traditional style, higher price |
| Tilt & Turn | Approx. 25% over casements | Modern, energy efficient |
| Bay | £1,100 – £4,000 | Adds space and character |
| Bow | £1,500 – £5,000+ | Curved design, premium cost |
Comparing Costs of New Windows
Here is a detailed comparison chart summarising popular new window materials and styles, covering price ranges, durability, maintenance, and energy efficiency to help with budgeting and planning:
| Material/Style | Price Range per Window (£) | Lifespan (Years) | Maintenance Level | Energy Efficiency Description |
|---|---|---|---|---|
| uPVC | 160 – 1,240 | 20-30 | Low | Good insulation, reduces heat loss |
| Aluminium | 210 – 1,615 | 40+ | Low | High due to thin frames and large glass panels |
| Timber | 240 – 1,860 | 30-50 | High | Excellent insulation but requires upkeep |
| Casement Windows | 500 – 1,250 | 20-30 | Medium | Good, depending on glazing |
| Sash Windows | 700 – 1,860 | 30-50 | Medium-High | Moderate, traditional style typically single glazed |
| Tilt and Turn Windows | Approx 25% over casements | 20-30 | Low | High, excellent sealing and insulation |
| Bay Windows | 1,100 – 4,000 | 20-30 | Medium | Good, depends on glazing |
| Bow Windows | 1,500 – 5,000+ | 20-30 | Medium | Good, depends on glazing |
Glazing Options
Double glazing is standard with every window type we sell. Double glazing costs vary between £160 and £1,860 per window depending on specifications. Triple glazing offers better thermal and acoustic insulation but costs about 30-50% more. Secondary glazing is an add-on layer mostly for heritage properties, improving soundproofing and insulation but less effective than double or triple glazing.
Installation Costs
Labour for professional window fitting ranges from £100 to £300 per window in the UK. Quality installation is crucial to prevent issues like leaks or drafts, and ensures compliance with building regulations.
Financial Help
Several UK grants like ECO4 and Warmer Homes Scotland help subsidize energy-efficient window replacements for eligible households. These schemes reduce upfront costs and support green home improvements.
DIY vs Professional Installation
DIY can save money but requires skills and tools to ensure proper fitting. Complex jobs or upper floor windows generally need professional installers who offer warranties and guarantee compliance with safety standards.
Tips to Save on Window Replacement
Selecting fixed windows, standard colours, and avoiding decorative glazing reduces costs. Gathering multiple quotes, negotiating, and timing purchases for promotions can also help.
Measuring Your Windows
Measure the actual window openings in millimetres at three points; use the smallest for height and width to avoid fitting issues. Check diagonally that frames are square. Accurate measurements are key for precise quotes.
Choosing an Installer
Pick installers with qualifications, insurance, good reviews, and written quotes including warranties and aftercare services. Local installers offer personal service and compliance with UK building codes.
When to Replace Windows
Signs include drafts near windows, condensation between panes, damage, or mechanical problems with opening. Timely replacement improves comfort, efficiency, and curb appeal.
Frequently Asked Questions
What are the main factors that determine the cost of new windows?
The cost of new windows is primarily determined by the choice of material, window style, installation process, and energy efficiency.
Understanding these factors can help you make informed decisions.
What is the average cost range for new windows in the UK in 2025?
The average cost range for new windows in the UK in 2025 is between £700 and £3,600 per window, with total costs for a three-bedroom house varying from £1,600 to £17,250.
How can I reduce the cost of window replacement?
To reduce the cost of window replacement, consider choosing fixed windows, standard colours, and omitting decorative features.
Additionally, negotiate prices, seek promotions, and obtain multiple quotes for the best deal.
What are the benefits of professional window installation over DIY?
Choosing to have your windows installed by professionals ensures that they are fitted accurately and comply with all relevant local codes, greatly reducing the chances of experiencing leaks, drafts, or any structural harm.
Consequently, hiring skilled technicians for window installation offers you reassurance and delivers enduring outcomes.
When should I replace my windows?
You should replace your windows if you experience drafts, condensation between panes, or any visible damage, such as cracks or rot.
Addressing these issues promptly will improve your home’s energy efficiency and comfort.
