Misted Windows
Condensation between the panes means the seal has failed. We replace the sealed unit, restoring clarity and insulation to your windows.
10-year guarantee on uPVC/aluminium
Window Repairs in Aylesbury
Sealed unit replacement and window hardware repairs. Keep your existing frames and save money.
✓ Handles from £30✓ 10-Year Guarantee✓ 40,000+ Units Replaced
Window Hardware Repair Prices
£25
Adjustments
£25
Sash Jammer
£30
Handles
£60
Hinges
£70
Specialist Hinges
£80
Mechanisms
All prices include VAT and fitting
Sealed Unit and Window Hardware Specialists
If your double glazed windows have misted up, or your handles and hinges are worn or broken, you do not necessarily need to replace the entire window. We can replace just the glass unit or repair the hardware, saving you money whilst restoring your windows to full working order.
With over 40,000 sealed units replaced since 2003, we have the experience to handle any window repair. All work comes with our guarantee for peace of mind.
Window Repair or Full Replacement?
Save money and time by keeping your existing frames. Perfect when your frames are in good condition but the glass or mechanisms need attention.
Sealed Unit Replacement
Ideal when your glass is misted, cracked, or you want to upgrade to decorative or energy-efficient glass. Keep your existing frames and save compared to full replacement.
- ✓Fix misted or failed double glazing
- ✓Replace cracked or broken glass
- ✓Add decorative glass (leaded, Georgian bars)
- ✓Upgrade to energy-efficient glass
- ✓Most units replaced within 1 hour of arrival
Need Complete New Windows?
If your frames are old, damaged, rotting, or you want to completely upgrade your windows, our full installation service provides new frames and glass together.
Consider full replacement when:
- • Frames are over 20 years old
- • Visible rot or damage to frames
- • Poor insulation around frames
- • Want to change window style or size
- • Upgrading from single glazing
Modern Liniar frames with A+ rated glass, professional installation, and 10-year insurance-backed guarantee.
Our Window Repair Services
Professional solutions for all window problems
Hardware Repairs
Handles, hinges, locks, and mechanisms. We repair or replace all window hardware components to keep your windows working smoothly.
Handles from £30, hinges from £60
Glass Upgrades
Add decorative glass, Georgian bars, or upgrade to energy-efficient units without replacing your frames.
Use our online quote tool
Our Guarantees
10
Year Guarantee
uPVC and aluminium frames
5
Year Guarantee
Wooden frames
All sealed units manufactured to measure with comprehensive protection against seal failure
Window Hardware Repair Pricing
Fixed prices for common repairs. All prices include VAT and fitting.
Window Hardware Repairs
Window Adjustments
Fix catching or sticking windows
Sash Jammers
Security locks (each)
Window Handles
Espagnolette or Cockspur
Standard Hinges
Friction hinges replacement
Specialist Hinges
Easyclean, fire escape or restrictor
Mechanisms
Complete mechanism replacement
All prices include VAT and professional fitting
Energy Efficient Glass Upgrades
We receive many enquiries about upgrading to energy-efficient glass. If your windows were installed after 2002, you already have energy-efficient (low-e) glass as required by building regulations at that time.
However, glass technology has improved since then, and you can upgrade to the latest energy-efficient glass without changing your frames.
Use our online pricing tool or contact us for a free quote on upgrading your glass to the latest energy-efficient standards.
Frequently Asked Questions
Common questions about our window repair services
How much does it cost to replace a misted sealed unit?
Sealed unit replacement pricing depends on the size of the window and the type of glass required. Use our online quote tool to get an instant price for your specific windows. All prices include a 10-year guarantee for uPVC and aluminium frames, or a 5-year guarantee for wooden frames.
Can you fix misted double glazing without replacing the whole window?
Yes, if your window frames are in good condition, we can replace just the sealed glass unit without changing the frames. This is significantly more cost-effective than full window replacement. The misting occurs when the seal between the glass panes fails, allowing moisture to enter. We manufacture new sealed units to measure and fit them into your existing frames.
How much does window handle replacement cost?
Window handle replacement costs £30 including VAT and fitting. This covers both Espagnolette and Cockspur style handles. If you have multiple handles to replace, contact us for a quote.
What guarantee do you offer on sealed units?
We offer a 10-year guarantee on sealed units fitted to uPVC and aluminium frames, and a 5-year guarantee for wooden frames. All sealed units are manufactured to measure with comprehensive protection against seal failure.
How long does it take to replace a sealed unit?
Most sealed units are replaced within 1 hour of arrival. The units are manufactured to measure beforehand based on our survey, so the on-site work is quick and efficient. This minimises disruption to your day.
My window is sticking or difficult to close. Can you fix this?
Yes, window adjustments to fix catching or sticking windows cost £25 including VAT and fitting. This involves adjusting the window within the frame so it opens and closes smoothly again.
Why Choose Smashing Windows?
20+ Years Experience
Established specialists with decades of experience in window repairs and sealed unit replacement.
CERTASS Registered
Fully certified installers with insurance-backed guarantees for complete peace of mind.
Fixed Pricing
Transparent pricing with no hidden costs. All prices include VAT and professional fitting.
20+
Years Experience
40,000+
Sealed Units Replaced
10
Year Guarantee
Window Repairs Across Buckinghamshire
We provide window repair services throughout Aylesbury and the surrounding areas
Aylesbury Vale
- Aylesbury
- Stoke Mandeville
- Wendover
- Haddenham
North Bucks
- Buckingham
- Winslow
- Waddesdon
- Quainton
South Bucks
- High Wycombe
- Princes Risborough
- Thame
- Chesham
Milton Keynes
- Bletchley
- Wolverton
- Newport Pagnell
- Woburn Sands
Ready to Fix Your Windows?
Get an instant quote for sealed units or book a free survey for repairs