Replacement Double Glazed Units.

Foggy or misty draughty glass units need replacement double-glazed units when condensation forms between the glass panes. This indicates a failed seal, which, due to its unappealing appearance, requires immediate attention.

Broken sealed units can occur due to various factors. These include thermal stress, impact damage, age-related deterioration of the bitumen sealant, or material failure inside the existing spacer bar. Traditional aluminium spacer bars are tubular and are filled with an anhydrous material called desiccant, which is generally put in the two most extended lengths or all four bars and absorbs moisture from the space between the panes. Over time, when this material fails, it leads to moisture ingress and reduced insulation. This often results in the need to replace the damaged or “blown” unit.

Aluminium spacer bar.

Glass Manufacturers.

The results are the same with automatic line insulation machines for larger companies, hot melt gunned units, and two-part application sealants for smaller companies. The goal is hermetically sealing the edges to trap the air inside the unit. During manufacturing, workers trap air when sealing the unit. This air inevitably contains a certain amount of moisture that they cannot eliminate. As a result, when external weather conditions are damp, particularly during the morning when the home’s interior is warm, the trapped air’s temperature will decrease. This phenomenon leads the desiccant inside the aluminium bar to absorb water droplets. Over time, this may ultimately result in its degradation.

By comprehensively understanding these factors, property owners can effectively manage their insulation systems. This helps prevent heat loss and mitigate increases in energy costs.

If the glass units were manufactured at the same time, other units nearby would likely malfunction soon. Therefore, we recommend replacing all of them at once if one window shows several non-functional units. This approach will help you maximise cost savings in the long term, ensuring a secure and lasting investment.

We recommend that if one window displays several non-functional units, it may be financially prudent to replace all of them simultaneously. This approach will help to maximise cost savings in the long term and ensure a secure and lasting investment.

Our team expertly manufactures new double-sealed units using an insulated spacer bar and a double-seal process with argon gas. These units come with a ten-year manufacturer’s guarantee. This allows you to avoid costly service calls and enjoy upgraded insulation glass units that surpass the performance of your previously installed broken-down glass units.

Replacement Unit cost.

We have set a minimum requirement of four units to ensure a smooth replacement process. This is due to the associated costs of replacement units and the expertise needed to determine the exact sizes and specifications of the new units. Additional features like leaded coloured lights or Georgian bars also factor into this process.

For your budget planning purposes, we recommend the following pricing: £150.00 per glass unit and £250.00 for lead or Georgian bar details. These estimates will help you gauge potential costs, which we will confirm after conducting a survey. We look forward to working together on this project and ensuring the best possible outcome!

Want to know More?

Call us today for your FREE, no-obligation quotation or fill out our Contact Form! For complete home Comfort Replacement, Double-Glazed Units are Designed to Keep You Warm, Safe, and Secure.

Alternatively, call your local number below to arrange an appointment.

East London Double Glazing: 020 8472 4088 (head office)
South London Double Glazing: 0203 856 6667
North London Double Glazing: 0203 856 6669
Epping: 01992 940 809
Chelmsford Double Glazing: 01245 208 058
Romford Double Glazing: 01708 202 457
Great Dunmow Double Glazing: 01371 704 771

Upgrade your existing double-glazed glass units today!