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  • Home
  • Sealed Unit Replacement
  • Window And Door Hardware
  • Pet Flaps
  • Composite Doors
  • Sealed units-explained
  • Gallery
  • Reviews
  • Blog
  • Privacy Policy

Window & Door Glass Replacement & Sealed Unit Replacement

Condensation forming a water droplet pattern on a window.

Professional Double Glazed Unit Replacement in Oxfordshire

At Crescent Glazing, we specialise in high-quality window and door glass replacement, including sealed unit replacement for double and triple glazing. Whether your glass is cracked, misted, blown, or damaged, we provide a fast, reliable, and cost-effective solution—without the need to replace the entire window or door.
Our expert service helps restore the clarity, insulation, and security of your glazing, saving you money compared to full frame replacement.

What Is a Sealed Unit?

A sealed unit (also known as a double glazed unit) consists of two or more panes of glass separated by a spacer bar and sealed to create an insulating barrier. Over time, these units can fail, leading to condensation between the panes—commonly known as a blown window.

Find Out More

Signs You Need Glass or Sealed Unit Replacement

• Condensation or misting inside the glass
• Cracked or smashed window or door glass
• Draughts or reduced insulation
• Water ingress between panes
• Cloudy or discoloured glass
• Loss of energy efficiency


If you notice any of these issues, our team can quickly assess and replace your glass with a brand-new sealed unit.

Our Glass Replacement Services

We provide a full range of window and door glass replacement services, including:


• Double glazed unit replacement
• Triple glazed unit replacement
• Broken or smashed glass repair
• Misted or blown unit replacement
• Toughened safety glass installation
• Laminated security glass replacement
• Frosted and obscure glass options
• Custom-sized sealed units


All replacement units are made to measure to ensure a perfect fit and long-lasting performance.

Benefits of Replacing Your Sealed Units

Replacing your glass instead of the whole frame offers multiple advantages:


• Cost-effective solution – no need for full window replacement
• Improved energy efficiency – reduce heat loss and energy bills
• Enhanced appearance – clear, fresh-looking windows
• Better insulation – keep your home warmer in winter
• Increased property value
• Environmentally friendly – less waste than full replacements

Why Choose Crescent Glazing?

• Experienced glazing specialists
• Fast turnaround times
• Competitive pricing
• High-quality materials
• Friendly, reliable service
• Fully tailored solutions


We take pride in delivering a professional finish on every job, no matter the size.

Areas We Cover in Oxfordshire

We provide window and door glass replacement services across Oxfordshire, including:


• Witney
• Carterton
• Eynsham
• Bampton
• Burford
• Woodstock
• Kidlington
• Oxford
• Chipping Norton
• Faringdon


And all surrounding towns and villages
If you're unsure whether we cover your area, just get in touch.

Get a Free Quote Today

If you need sealed unit replacement or window glass repair, contact Crescent Glazing today for a free, no-obligation quote.
We’re here to help restore your windows and doors quickly, efficiently, and affordably.

Get a Quote

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