maintain double glazed windows

How To Maintain Your Double-Glazed Windows

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    Changing out your windows is an extensive undertaking. Installing double glazing may be quite costly, regardless of whether you're a first-time buyer or replacing a broken pair.

    Double glazing can last for many years with proper installation by an accredited engineering team. Even with professional installation, the quality and functionality of your windows might be compromised if you don't give them extra care.

    What Is Double Glazing

    Windows with just one pane of glass were poor insulators in bygone days. This was because their thickness was barely a few millimetres. It allowed both hot and cold air to flow through easily. This makes it exceedingly difficult to regulate the temperature in the house, as you might expect.

    The best way to fix this is to install double glazing. A tiny air gap is used between the two sheets of glass. The result is that the windows are significantly better insulated, which maintains the temperature within the house more consistently. In addition to being a fantastic option for any window type, double glazing is suitable for any upgrade project.

    How To Clean Double-Glazed Windows 

    Choose The Right Cleaner

    Before you use window cleaner on your windows, consider it seriously. If you want your windows to shine again, you don't need a cleaning product with strong chemicals that can harm your double glazing.

    Making your solution of white vinegar and water—one part vinegar to four parts water—is the best way to clean. Using a microfiber cloth and a circular motion, you must clean the windows with this mixture. If you want grime-free windows, an old toothbrush or cotton buds work well because you can get into all the crevices.

    Clean On A Cloudy Day

    A cloudy day is ideal for cleaning windows, which brings us to our next point. The sun's rays might dry your windows too rapidly, causing streaks. Therefore, leaving them outside is not a good idea if you want your double glazing to shine.

    Use Newspaper

    A great way to protect glass from streaks is to use newspaper as a cushion. Though it may sound strange, you can keep your windows dry and your view unobstructed with this inexpensive and incredibly easy method.

    How To Maintain Upvc Windows

    Unplasticized Polyvinyl Chloride (UPVC) is the go-to material for double glazing due to its durability, longevity, and relative ease of maintenance.

    The seals are the only part of UPVC windows that require maintenance. Cloudy windows are most commonly caused by failed seals, which trap moisture within your window panes through gaps.

    You can gently press the seals back into place if you detect any little lumps or bumps. However, talk to a professional who can diagnose the issue and provide advice if the lumps persist.

    The visual value of your windows can be diminished if the seals become dirty. Rubbing the seals with an old toothbrush and warm water will remove dirt or debris.

    In What Ways May I Prevent The Growth Of Mould?

    Double-glazing condensation can cause more serious problems than a restricted view.

    The moisture from persistent window condensation can grow mould on your walls and double glazing.

    Some things you can do to keep mould at bay are:

    • Use a window squeegee or sponge to remove any moisture from your windows.
    • Avoid leaning furniture against walls.
    • Keep your home well-ventilated by opening windows while cooking or showering.
    • Verify that your house has enough insulation.

    In What Ways Can I Ensure The Proper Functioning Of My Door Hardware?

    Performing routine maintenance on your double glazing includes more than just wiping down the panes; it also involves checking the hinges, locks, and mechanisms to ensure they are in good operating condition. Heat loss, condensation, and security issues can arise from poorly designed locks and handles.

    Maintaining clean, dirt-and-grime-free hinges, locks, and mechanisms is the surest method to keep them functioning properly. If you do this, your sliding doors will not jam, and your hinges will open easily.

    Types Of Glass Of Double-Glazed Units

    Plain old ordinary glass. A continuous sheet of glass as thick as 3660 mm in width can be created by melting sand, soda ash, dolomite, and limestone together. As it exits the furnace, it "floats" above a pan of molten tin. After that, the glass is annealed by slowly cooling it, which changes the internal tensions so it may be cut and increases its mechanical resistance. The optical clarity and flatness achieved with the float glass method are well-known. It can be hardened, coloured, or coated with Low E for added efficiency.


    Two panes of glass are joined by a resin or plastic layer. One kind of safety glass that stays put even after breaking is laminated glass. Between its multiple layers of glass is an interlayer that, in the case of a break, is usually made of polyvinyl butyral (PVB).

    The interlayer's great strength protects the glass from shattering into sharp fragments and keeps the layers linked even when damaged. When the impact isn't strong enough to break the glass entirely, it creates the telltale "spider web" pattern of cracks. Laminate Glass meets the criteria for Grade a Safety Glass according to Australian Standards due to its crucial shattering characteristic, which greatly minimises the risk of serious damage.

    Helps prevent the fading of your furniture by absorbing 99% of UV radiation. Noise: You can control the sound dampening by adjusting the layer between the two panes of glass; this makes it ideal for blocking out noise from vehicles, dogs, planes, trains, and more.

    Raising safety measures Because of its strength, it is more difficult to penetrate. The interlayer bond binds any shattered pieces to the glass, keeping the glass intact and resistant to penetration in the event of an impact, whether caused by a person or something else.

    Toughened Glass

    Glass that has undergone controlled chemical or thermal treatments to make it more durable than regular is known as toughened or tempered. Instead of shattering into sharp shards, tempered glass breaks into minute granular pieces due to controlled internal forces. There is less danger of harm from the granular pieces. In places designated by Safety Standards, fully toughened glass—four to five times stronger than regular glass—is utilised.

    Tinted Glass

    Solar heat reduction, ultraviolet light protection, privacy, security, ornamental purposes, and heat retention are just a few of the many reasons for the different varieties of window tints on the market.

    Toughening, laminating, or incorporating tinted glass into an insulating glass unit are all viable options. A slight haze could be visible in some lighting situations. Inversely emissive, or low E. Increased insulating effect and reduced heat loss equal energy savings when E is low. When formed into a double-glazed unit, a procedure is applied to improve the insulating properties. glass with a low emissivity is known as low E glass. A unique metal coating, a low emissivity or Low E Coating, is applied on one side of the glass, distinguishing it from regular transparent glass.

    Windows with low-emissivity (low-E) glass are more energy efficient since less heat or cold can escape through the panes. This keeps your home warm year-round. Low E glass will soon be a requirement everyone must meet because energy efficiency is becoming increasingly significant in our daily lives.

    Argon Filled Units 

    Being an inert gas, Argon Gas. There is no danger. Sealing the argon within during manufacturing enhances this unit's insulating characteristics. Because of its higher density than air, argon gas significantly reduces heat loss and heat gain in the house, improving thermal performance by as much as fifteen per cent.

    Benefits Of Double Glazing

    benefits of double glazing

    Warmer In Winter

    Double glazing's insulating layer helps to maintain a comfortable interior temperature even when the weather outside is chilly. Double glazing may greatly decrease heat loss—which accounts for as much as half of a home's heat loss—leading to greater comfort and lower energy expenditures.

    Cooler In Summer

    Double glazing's insulating layer helps keep the cold out and the heat in, just as it does the opposite for cold. This makes the house more energy efficient and keeps it cooler in the summer without requiring as many air conditioners.

    Control Condensation

    Cooling warm air causes it to condense. Windows are particularly vulnerable to the growth of mould and mildew because they allow airborne moisture to condense on the glass, creating large volumes of water. Condensation forms quickly in windows with single glazing because cold outside air penetrates them easily.

    Reduce Fading

    Carpets and furniture fade due to chemical changes in the material's colour qualities brought about by exposure to ultraviolet light, which is also known to cause human skin damage. Furniture can be damaged by the sun's infrared radiation, which causes heat damage and eventually fades the colour. The visible light itself is harmful but to a lesser extent.

    Double glazing can lessen the quantity of damaging ultraviolet light entering your home. Because different types of glass reflect different amounts of heat (and visible light), combining them can further decrease fading.

    Reduce Outside Noise

    The health and comfort of your house might be negatively affected by unwanted noise heard from outside.

    Improve the soundproofing of your windows by installing double glazing. Double glazing reduces outside noise by attenuating sound waves as they pass through the window.

    Regarding how much better the noise insulation is compared to the current single glass, the results will vary depending on the glass selections utilised in the double glazing.

    Improve Health & Wellbeing

    Half of your home's heat may escape via the windows and doors, regardless of how well-insulated your house is. More than just mould and bacteria can form from condensation. Viruses, mites, and fungi can multiply, making it more likely that people will suffer from asthma, allergies, and respiratory infections.

    You may make your home more comfortable all year round by installing double glazing, which increases thermal stability, decreases temperature changes, and eliminates cold spots. Along with a notable decrease in condensation, this will contribute to the development of a healthier and more pleasant dwelling.

    Reduce Draughts

    The sensation of a draughty room can be attributed to convection currents, which occur when chilly air settles at your feet. When people feel a chill in the air, it can be because they think the windows are draughty due to holes or poorly sealed glass. However, convective draughts will be more apparent when the weather is cool and motionless.


    Putting in double-glazed windows is an inexpensive way to keep your home's quality and usefulness. Since there is a small space between the two sheets of glass, they keep out more heat than single-panedas. To clean double-glazed windows, mix white vinegar and water together and use an old toothbrush or cotton buds to wipe them down. When it's dark, put newspaper under the glass to keep it from getting streaks.

    Unplasticized Polyvinyl Chloride (UPVC) is the best material for double windows because it lasts a long time and is easy to keep up. Use a window scraper or sponge to remove water from windows, don't lean furniture against walls, make sure your home has good ventilation, and make sure it has enough insulation to stop mould from growing.

    As part of regular double glazing upkeep, hinges, locks, and mechanisms should be checked to make sure they work properly. Locks and knobs that aren't made well can let heat escape, cause condensation, and make things less safe. For smooth sliding doors and easy hinge opening, it's important to keep the hinges, locks, and gears clean and free of grime and dirt.

    Many kinds of double-glazed glass are available, such as float glass, which can be made harder, coloured, or covered with Low E to make it cooler.

    As long as it doesn't break, laminated glass stays in place. It has a polyvinyl butyral (PVB) layer between the layers to keep them from breaking and to keep them linked. It meets the Australian Standards for Grade A Safety Glass, which lowers the chance of major damage. By blocking 99% of UV light, it also keeps furniture from fading.

    Toughened glass is made of glass that has been treated with chemicals or heat in a controlled way to make it stronger than regular glass. It breaks into tiny granular pieces because of controlled forces inside it. The granular bits are less likely to hurt you. Fully hardened glass is used in places that Safety Standards say it should be.

    Tinted glass has many uses, including reducing heat from the sun, blocking UV rays, providing privacy, keeping heat in, and looking nice. It can be made stronger, laminated, or added to a unit of insulated glass. It saves more energy because less heat or cold can pass through the panes of low-emissive glass.

    Argon-filled units use a neutral gas that makes the house much more energy efficient by cutting down on heat loss and gain by a large amount. Double glazing has many benefits, such as keeping the inside warmer in the winter and cooler in the summer, preventing condensation, fading, and noise from outside, improving health and well-being, and stopping leaks. Putting in double windows will make your home more comfortable all year, cut down on condensation, and make your health and comfort better overall.

    double glazing upkeep

    Content Summary

    • Double glazing represents a significant investment but offers long-lasting benefits.
    • Proper maintenance is key to preserving the quality and functionality of double-glazed windows.
    • Double glazing improves insulation, maintaining a more consistent indoor temperature.
    • It is suitable for any window type and any upgrade project, enhancing home comfort.
    • Homemade solutions like vinegar and water can effectively clean double-glazed windows.
    • Cleaning windows on a cloudy day prevents streaks caused by rapid drying in the sun.
    • Using newspaper can protect glass from streaks during cleaning.
    • UPVC windows are durable and easy to maintain but require attention to seals.
    • Failed seals can cause cloudy windows by trapping moisture between panes.
    • Gently repositioning seals can fix minor issues, but persistent problems may need professional help.
    • Cleaning window seals with an old toothbrush and warm water can improve appearance.
    • Preventing mold growth involves removing moisture and maintaining good ventilation.
    • Regular maintenance of door hardware ensures proper functioning and security.
    • Float glass production involves melting sand and other materials, resulting in clear and flat glass.
    • Laminated glass, made of two panes joined by a resin layer, offers safety and UV protection.
    • Toughened or tempered glass is more durable and safer than regular glass.
    • Tinted glass provides solar heat reduction, privacy, and decorative options.
    • Low-E glass improves insulation and energy efficiency by reflecting heat.
    • Argon-filled units enhance insulation by trapping argon gas between panes.
    • Double glazing keeps homes warmer in winter by reducing heat loss.
    • It also keeps homes cooler in summer by preventing heat gain.
    • Double glazing controls condensation, reducing the risk of mold and mildew.
    • It can reduce fading of carpets and furniture by blocking UV light.
    • Double glazing reduces outside noise, improving home comfort.
    • It can improve health and wellbeing by preventing condensation and drafts.
    • Ensuring proper window maintenance extends the lifespan of double glazing.
    • Regular cleaning keeps double-glazed windows looking and functioning well.
    • Awareness of common issues like failed seals helps in timely maintenance.
    • Professional help may be required for significant problems like seal failure.
    • Double glazing offers a range of glass types for different needs and preferences.
    • It is an effective solution for older homes with poor insulation.
    • Homemade cleaning solutions are gentle and effective for double glazing.
    • Cleaning techniques like using newspapers are simple yet effective.
    • UPVC's ease of maintenance makes it a popular choice for double glazing.
    • Addressing seal issues early prevents further damage and maintains insulation.
    • Mold prevention is crucial for maintaining a healthy home environment.
    • Door hardware maintenance is part of overall double glazing upkeep.
    • Different glass types offer unique benefits, from safety to energy efficiency.
    • Laminated glass offers additional safety and sound dampening benefits.
    • Toughened glass ensures safety with its breakage pattern.
    • Tinted and Low-E glass options provide energy savings and privacy.
    • Argon gas enhances the thermal performance of double-glazed units.
    • Double glazing's insulation benefits are significant in both winter and summer.
    • Controlling condensation protects the home from water damage and mold.
    • Protecting furnishings from fading extends their life and appearance.
    • Noise reduction contributes to a peaceful indoor environment.
    • Improved thermal comfort supports a healthier living space.
    • Reducing drafts enhances comfort and energy efficiency.
    • Double glazing is an investment in the home's comfort, security, and energy efficiency.
    • Proper care and maintenance ensure double-glazed windows deliver their full benefits over time.

    Frequently Asked Questions

    Yes, inspect the perimeter of your double-glazed windows for any gaps or draughts. Use weatherstripping or caulking to seal any openings and improve energy efficiency.

    Consider installing storm windows or shutters to provide an additional layer of protection during severe weather events. Ensure that window frames are properly sealed and maintained.

    Yes, periodically check the glazing beads to ensure they are secure and intact. Replace any damaged or missing glazing beads to maintain the integrity of the window seal.

    While some maintenance tasks can be performed by homeowners, such as cleaning and lubricating, it's advisable to consult a professional for issues like seal failures or major repairs to ensure proper handling and long-term effectiveness.

    Regular maintenance helps prolong the lifespan of double-glazed windows, prevents costly repairs, ensures optimal energy efficiency, and enhances the comfort and aesthetics of your home.