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Double Glazed Windows Kirkcaldy

GreenCastle is your trusted supplier and installer of double-glazing in Kirkcaldy. Boost the appearance, energy efficiency and security of your home with our bespoke double glazed windows services. Get a free quote.


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SAVE BIG when you recycle your old windows & doors with us.

Find out how much your old windows are worth when you enquire online today!

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Why Choose GreenCastle Double-Glazed Windows?

Double glazed window

As a leading Scottish window company with over 50 years experience in serving customers in Kirkcaldy and surrounding areas, we have established our name as a highly recommended double-glazing windows company with a great reputation for quality installations and competitive pricing. 

Our double-glazing products are made to the highest standards, providing you with great new glazing that not only looks the part, but also functions effortlessly for years to come. We can customise your double-glazing to complement your home.

Double glazed window

Energy Efficient New Double-Glazing

Kirkcaldy homeowners with old glazing, or who have never had double-glazing installed before, will be losing a lot of heat through their windows and therefore have higher energy bills. GreenCastle double-glazing is low U value and improves your home’s thermal efficiency, having a positive impact on heating costs. 

With double-glazing consisting of two panes of glass (or three in the case of triple-glazed windows) and an insulating barrier of gas between the glazing, this ensures that more heat is retained in the home. This improved energy efficiency helps keep heating bills in check as you won’t have to have the heating on for as long.

Noise Reduction

Double glazing in modern Dundee home

Installing double-glazed windows or doors will make a significant difference to how much external noise enters your Kirkcaldy home. Double and triple glazing significantly reduces external noise – particularly beneficial if you are affected by noise from neighbours or traffic.

Double-glazing absorbs sound vibrations and sound also struggles to pass through the frames themselves, leading to overall noise reductions of around 65%.

Double glazing in modern Dundee home

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Boost Home Security

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Double-glazing improves and the accompanying locking systems improve home security to ensure your Kirkcaldy home is secure. Unlike standard single-glazing, double-glazed windows are much more difficult to break without making significant noise!

Our windows have steel-reinforced uPVC frames as standard, making forced entry very difficult. To further enhance security, we supply Yale multi-point locking systems with both our windows and doors.

Secondary glazing installed in Scotland home

Increase The Value Of Your Home

Secondary glazing installed in Scotland home

Installing double-glazed windows and doors can be a smart investment in your home, especially if you decide to sell up at some point. New double-glazed external doors such as French doors, patio doors will make a significant difference to the kerbside appeal of your home.

Double-glazing gives you a better chance of selling your home at a much better sale price. It’s estimated that having double-glazing products installed in place of single glazing can add around 10% to the resale value of a property.

sash windows installed in bedroom

UV Protection

sash windows installed in bedroom

Despite what you may think, Kirkcaldy does get some sun hours which can impact on the wellbeing of your family. UV (ultraviolet) rays can penetrate into homes through windows and cause issues such as premature ageing of skin as well as damage to home furnishings and fabrics.

With built-in UV screening, double-glazed windows stop up to 99% of ultraviolet rays getting into homes in Kirkcaldy, making them a welcome home improvement. 

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Reduced Condensation

Reducing noise with double glazing

Condensation is commonly a problem for homes with single glazing or failing double-glazed units. The resultant mould growth and damp patches can affect health and lead to respiratory illnesses. Over time, condensation can also cause structural damage to your home.

New double-glazing to replace your existing windows can reduce condensation significantly, sometimes by as much as 85%.

Reducing noise with double glazing

Easy To Maintain

Open double glazed window

Looking after your GreenCastle windows and doors is straightforward. Unlike traditional timber window frames, uPVC or composite frames don’t require periodic maintenance such as repainting and varnishing. It’s simply a case of a wipe down of the frames with water and a mild detergent.

Open double glazed window


UV protective double glazing in dundee home

GreenCastle windows are made in the UK, so are made specifically with the Scottish weather in mind! With minimal maintenance, you can expect your new windows to last 20 years or longer, and be able to stand up to the worst that the Kirkcaldy weather can throw at them.

UV protective double glazing in dundee home

SAVE BIG when you recycle your old windows & doors with us.

Find out how much your old windows are worth when you enquire online today!

Double-Glazing Window Styles

Our highest quality double-glazed windows are available in a wide range of customisable styles of windows and doors. These design options include:

  • Casement windows – a classic style and one of the most affordable types of windows.
  • Flush windows – elegant and sleek with a traditional aesthetic appeal.
  • Cottage windows – with a rustic charm that enhances modern homes as well as older properties.
  • Sash windows – for the elegant charm of traditional timber windows.
  • Bay windows – creating an architectural focal point.
  • Shaped windows – non-standard window designs that make homes stand out.
  • Reversible windows – easy to clean and provide good ventilation.
  • Tilt-and-turn windows – for additional child safety. 

Window Frame Colour Options

GreenCastle offers a wide choice of uPVC window and door frame colours, from contemporary and bold to more sophisticated shades and wood grain effects. This allows you to make a style statement that personalises your home.

Besides the standard white, your options range from tones of cream, green, blue, and red, to black, grey, and brown. If you want your interior window frames to be a different colour to that on the exterior, we can accommodate that.

Window Hardware

GreenCastle double glazed windows and doors are supplied with quality hardware that complement the double-glazing and boosts security and energy efficiency. All our locks, handles, and hinges are tested to rigorous technical standards to ensure high functionality and smooth operation.

Benefits of GreenCastle Double-Glazing

interior windows installed in kitchen

Our full range of double-glazing services provide Kirkcaldy homeowners with multiple benefits, such as: 

  • Multiple window customisation options.
  • Precision, made-to-measure installation.
  • 10-year guarantee on frames and glazing for true peace of mind.
  • Lifetime guarantee on window locking systems.
interior windows installed in kitchen
double casement window with top light

Value-Added Services

double casement window with top light

Our double-glazing installation service comes with a range of value-added features, including:

  • Free no-obligation consultation and quote.
  • Free window style-and-design service.
  • Financing options, including 12 months’ zero-interest credit.
  • Saving you money when you recycle your old windows with us.


Call us now on 01382 671023 or contact us online to schedule your free consultation and quote.

Double-Glazing Kirkcaldy FAQs

Most frequent questions and answers

You generally don’t need planning permission for double-glazed windows or doors. However, if you’re installing double-glazing in a listed building or in a conservation area you’ll typically require listed-building consent or planning permission.

If you are planning on making double-glazing your next home improvement investment, we can advise you if you are unsure if planning permission is likely to be an issue at your property in Kirkcaldy.

The lifespan of double-glazing depends on factors such as the quality of the installation and materials, and how well the windows are maintained.

All our products are high quality and should last at least 20 years. UPVC windows and doors for example, will last longer if your property is in a sheltered location that doesn’t leave them overly exposed to extreme weather. Some double-glazing may last up to 50 years.

Regular cleaning and maintenance can extend the lifetime of your double-glazed units. Clean the glass and frames and sills with a soft cloth or sponge and a mild detergent. This will remove dirt without scratching the surfaces. 

Don’t use a high-pressure hose to clean your window exteriors. This can damage the seals and cause leakage. 

Window maintenance includes checking the condition of locks and seals frequently and ensuring any necessary repairs are done promptly.

Whether you need to replace a double-glazed window or have it repaired depends on what’s causing the problem. If the integrity of the sealed unit has become compromised, you’ll usually need a full window replacement. 

If the problem is less serious, such as small cracks in the frame or damaged hardware, these issues can often be repaired. 

The price of double-glazing varies depending on the size of the window or door, quality of materials, level of customisation, and whether preparatory structural work like opening up a wall is needed. New installation composite doors and windows are generally a more expensive option than UPVC windows and UPVC doors.

You can get a no-obligation free quote from GreenCastle Home Improvements for double-glazing in Kirkcaldy.

casement box bay window installed in scotland

Casement Windows

Single or double-panelled windows, these are hinged from the side, top or bottom. Available in uPVC, timber or aluminium, and in a range of different colours, they can be customised with options including decorative glass, clip-on Georgian bars, and different finishes. Our casement windows offer the latest high performance technology when it comes to security. Highly energy efficient, our casement windows are A+ rated for maximum thermal efficiency.

Available in a range of colours.

sash windows installed in bedroom

Sash Windows

Providing effortless use with smooth sliding mechanisms, sliding sash windows have the appearance of timber but the functionality of UPVC.  Available  in a range of styles, including Georgian, Victorian and Edwardian, our sash windows are long-lasting and relatively maintenance-free.

Available in a range of colours.

shaped windows installed to brighten scotland home

Shaped Windows

Non-standard shaped windows provide unique design appeal to a property. These types of windows, including arch and circle shapes, can boost light coming into a property.

Available in a range of colours.

tilt turn windows installed in open room

Tilt & Turn Windows

Tilt & turn windows are highly versatile and easy to use. A perfect option for homes with young children, their tilt and turn functionality means you can conveniently ventilate your home without any risk to safety.

Available in a range of colours.

Bay window installed in scotland home

Bay Windows

Forming a bay on the edge of a room, these type of windows give your room a spacious feel. Their design allows lots of natural light  into your space and are an attractive addition to a home when viewed from the outside.

Available in a range of colours.

flush casemet window installed in scotland home

Flush Windows

A blend of classic style with modern hardware, flush windows are the perfect option for both heritage and modern properties. Their thermal efficiency and noise reduce capabilities make them a great addition, and they can be custom-made for your home.

Available in a range of colours.

scotland cottage installed with scottish style windows

Cottage Windows

Our cottage windows help retain authentic old-style charm for period properties or can even  add a vintage touch to new build properties. With a traditional design, they often feature multiple small panes and cross-bars.

Available in a range of colours.

Coloured window installed in office scotland building

Coloured Windows

Choose windows frames in colours that perfectly match your own aesthetic requirements. Ensure they match your home and stand out for the right reasons.

Available in a range of colours.

Secondary glazing installed in Scotland home

Secondary Glazing

As an alternative to standard double glazing, secondary glazing is slim additional window inside the existing one and improves thermal insulation and noise reduction.

Available in a range of colours.