Velux reglazing London Colney
Velux glazing units generally have a lifespan that ranges between 10 - 25 years, which can vary based on their specific location and environmental conditions. When these units begin to fail, you may notice certain indicators, such as the appearance of condensation forming on the interior of the sealed unit. Additionally, you might experience leaks that occur as a result of the external seals deteriorating due to age.
Breakages and accidents can occur with any product, one of the notable benefits of Velux windows their capacity for reglazing. This feature allows homeowners to keep their existing frames while updating the glazing, making it a more eco-friendly choice compared to the complete replacement of the window.
It is important to note that Velux no longer sells glazing units designed for older generations of windows. As a result, if you own such a window, the only available solution would be to replace the entire window and frame with new ones. However, we at PMV Blinds do not view this as an environmentally responsible option, as it involves discarding perfectly functional roof windows simply to update the glazing units. Therefore, we offer a sustainable alternative: we supply double-sealed glazing units that are compatible all Velux windows, regardless of whether they are new or old. Our glazing units not only come with a guarantee but are also manufactured locally in Hertfordshire, ensuring quality and support for our community.
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Expert Velux Glass Replacement in London and surrounding areas.
Is your Velux window misted, cracked, or losing heat? You don’t always need to replace the entire window frame. We specialise in Velux glass replacement, offering a cost-effective way to restore your skylight's clarity and thermal efficiency without the mess of a full installation.
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Why Replace Just the Glass?
Replacing only the double-glazed unit is often the smartest choice for homeowners. It is:
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Cost-Effective: Typically 65% cheaper than a full window replacement.
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Hassle-Free: We work from the inside, meaning no external scaffolding is required and no damage to your roof felt or internal plaster.
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Eco-Friendly: Upgrading old panes to modern, Low-E energy-efficient glass can reduce your heating bills.
Common Signs You Need New Velux Glazing.
If you notice any of the following, it’s time for new glass:
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Condensation Between Panes: A "blown" seal means moisture is trapped inside, making the window look foggy or dirty.
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Cracks or Chips: Even small cracks can compromise the safety and insulation of your home.
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Draughts and Heat Loss: Older Velux glass (pre-2001) lacks the advanced thermal coatings of modern units.
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Our Velux Re-glazing Options
We provide genuine and high-quality compatible glass units tailored to your specific needs:
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Energy Efficiency: Low-E coatings and Argon gas filling to keep heat in.
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Safety & Security: Toughened glass that meets modern building regulations.
To give you an accurate quote, we just need the Velux code found on the silver or gold plate on the top of your window sash (e.g., GGL MK04).
Before and After pictures from reglazing




The transformation and benefits from reglazing your velux windows can be great, from being able to view things outside your window to benefiting from the glazing being more insulated from the cold and heat.
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Please get in touch if you have any questions or would like your Velux windows reglazed.
