The cost of installing uPVC windows: What you need to know
- 15 September, 2025|
- News
In summary
- uPVC windows typically cost between £500-£1,500 per window for supply and installation, depending on style, with casement windows being the most affordable option
- Labour costs average £25-£35 per hour, with most installations requiring two installers at approximately £600 per day
- Long-term savings through reduced energy bills and minimal maintenance make uPVC windows a worthwhile investment despite the higher upfront cost
- Window style, size and additional features significantly impact the overall cost of new windows
- Getting quotes from reputable FENSA-registered installers like Warwick Development ensures quality workmanship and compliance with building regulations
Planning your window replacement project? Understanding the cost of installing uPVC windows is crucial for making an informed decision about your home improvement investment.
With window prices varying significantly based on style, size of the window and installation requirements, knowing what to expect helps you budget effectively and avoid surprises.
uPVC has become the popular choice for homeowners replacing old windows, offering better value than wooden windows.
At Warwick Development, we manufacture, supply and install bespoke uPVC windows that meet all the latest glazing industry standards for security and energy efficiency performance. Our comprehensive range includes casement windows, flush sash windows and vertical sliders, all backed by a 10-year guarantee and FENSA registration for complete peace of mind.
What is uPVC and what are its benefits?
uPVC (unplasticised polyvinyl chloride) is the most popular window and door material in the UK, also used for guttering, fascias and cladding. This versatile plastic material offers exceptional durability and weather resistance, making it ideal for British climates and a great option for homeowners seeking low-maintenance solutions.
Key benefits of uPVC windows include:
- Excellent energy efficiency with A-rated thermal performance
- Low maintenance requirements compared to wooden windows – no painting or staining needed
- Superior security with multi-point locking systems
- Cost-effective compared to timber windows or aluminium window frames
- Long lifespan with minimal deterioration
- Noise reduction properties for better acoustic performance
- Available in numerous colours including woodgrain effects like rosewood and Irish oak
- 100% recyclable for environmental sustainability
What is the cost of installing uPVC windows?
The cost of new windows varies considerably based on several factors. According to recent data from Checkatrade, here are the average costs for different types of uPVC windows including supply and installation:
| Type of window | Low range | High range | Average cost |
| Casement windows | £500 | £1,250 | £1,000 |
| Sash windows | £700 | £1,500 | £1,200 |
| Sliding windows | £600 | £1,400 | £1,100 |
| Tilt and turn windows | £600 | £1,400 | £1,100 |
| Bay windows | £1,100 | £4,000 | £2,500 |
| Bow windows | £1,500 | £5,000+ | £3,000 |
The style of window significantly affects pricing. Sash windows cost more than uPVC casement windows due to their complex internal mechanisms and longer installation time.
Window units in standard sizes typically cost less than bespoke dimensions, whilst the type of glass and number of panes of glass also influence the cost of double glazing installation.
Labour costs and additional costs
Professional window installation requires skilled tradespeople to ensure proper fitting and weatherproofing. According to Checkatrade data, current labour rates include:
- Hourly rate: £25-£35 per glazier or window installer
- Daily rate: £250-£300 for a single installer
- Two-person team: Approximately £600 per day
Most window installations require two installers for safety and efficiency, particularly for larger windows or upper-floor replacements. The cost of installation varies by region, with higher rates typically charged in London and the South East. Additional costs may include scaffolding for upper floors, disposal of old windows and any structural modifications required.
When comparing quotes from the best double glazing companies, remember that cheapest isn’t always best value. Companies with years of experience like Warwick Development offer superior craftsmanship and comprehensive warranties.
How uPVC windows can lead to long-term savings
Despite the upfront cost, investing in new windows delivers substantial long-term benefits that offset the cost of replacement windows:
Energy bill reductions: A-rated uPVC windows with double glazing can significantly reduce heat loss, lowering heating costs throughout the year. Triple glazing provides an extra pane of glass for even better insulation, particularly beneficial when combined with modern heat pumps.
Government support: Check for available double glazing grants that may reduce your initial investment in energy-efficient windows.
Minimal maintenance costs: Unlike wooden windows that require regular painting and treatment, uPVC window frames need only occasional cleaning, saving hundreds of pounds over their lifespan.
Alternative solutions: For properties where full replacement isn’t feasible, secondary glazing can provide improved insulation at a lower cost than complete window replacement.
Increased property value: Quality replacement windows improve your home’s aesthetic appeal and energy performance, potentially increasing its market value.
uPVC windows from Warwick Development
Our comprehensive range of high-performing uPVC windows combines outstanding thermal efficiency with attractive aesthetics. All our windows achieve A-rated energy efficiency and feature BBA certification as standard. We offer extensive customisation options to suit any property style and budget.
Casement windows
Our uPVC casement windows use Eurocell Eurologik profiles, suitable for all property types and available in standard sizes or bespoke dimensions. Key features include:
- A-rated energy efficiency with U-values as low as 0.8 W/m²K
- Choice of chamfered or ovolo profile styles
- 28mm double glazing or 36mm triple glazing options
- Multi-point locking systems with shoot bolt locking
- Available in 30 attractive colours including black, anthracite grey, golden oak and rosewood
- Made from 100% recycled materials for sustainability
- Customisation options including Georgian bars for period properties
Logik flush windows
Eurocell Logik flush windows offer high performance with traditional aesthetics, making them a great option for heritage properties:
- A-rated thermal performance with U-values as low as 0.9 W/m²K
- Flush slimline window frame design with 70mm front-to-back dimensions
- Shoot bolt locking for enhanced security
- 19 standard frame colours plus 32 additional colour options
- Optional grey substrate available
- Suitable for refurbishment and new-build projects
Modus windows
The comprehensive Eurocell Modus range includes slim rebate, flush sash, reversible and tilt & turn options, representing the best double glazing technology:
- U-values as low as 0.7 W/m²K for exceptional energy efficiency
- Internal and external flush sash design
- Contemporary slimline sightlines
- Over 30 attractive colour choices
- 50% post-consumer recycled PVCu content
- BBA certification for quality assurance
Frequently asked questions
How much do uPVC windows cost on average?
The cost of replacement windows typically ranges from £500-£1,500 per single window including installation, with uPVC casement windows being the most affordable option and bow windows commanding premium prices due to their complex design.
What affects the double glazing cost?
Key factors include window style, size of the window, type of glass, number of glass panes, additional features like Georgian bars, accessibility for installation and regional labour rates throughout the UK.
Is it a good idea to replace all windows at once?
Replacing multiple window units simultaneously often provides better value through bulk discounts and reduced labour costs per window, whilst ensuring consistent performance and appearance throughout your property.
How much do new windows cost compared to secondary glazing?
Secondary glazing typically costs £200-£400 per window compared to £500-£1,500 for full replacement, but offers limited thermal improvement and doesn’t address issues with old windows like draughts or decay.
Who are Warwick Development?
With years of experience in the glazing industry, Warwick Development specialises in manufacturing, supplying and installing high-quality uPVC windows that meet the latest glazing industry standards. Our extensive range includes casement windows, flush sash windows, vertical sliding sash windows, tilt & turn windows and reversible windows.
All our installations are FENSA registered, ensuring compliance with building regulations and providing you with the necessary certification for insurance and property sales. We offer BBA accredited systems as standard, backed by comprehensive 10-year guarantees for complete peace of mind.
Our efficient service includes trade quotes within 8 working hours and retail quotes within 48 working hours.
Ready to transform your home with energy-efficient uPVC windows that offer the best value for money? Contact Warwick Development today for your free, no-obligation quote and discover how our bespoke window solutions can improve your property’s comfort, security and value whilst reducing long-term energy costs.
