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Casement Windows in Bromley and Dartford, to Maidstone and Sevenoaks

The most popular windows with British homeowners, casement windows will effortlessly suit any age and style of property. Their versatile designs, excellent thermal performances and noise reduction abilities make them an excellent replacement window choice to easily ventilate your home. We offer uPVC, aluminium and timber casement windows that can be installed in a plethora of colours and wood effects, and you can even choose between our high-performance double, triple or secondary glazing options.

Casement windows feature a hinged side on the left, right, or top of the window. They firmly lock into place on the non-hinged side. Their simple opening action is easy to operate and can be opened wide when needed. Fixed panes can be incorporated alongside the opening pane in any position you want.

Compare Our Casement Window Materials

uPVC Aluminium Wooden
Colours 150+ RAL colours and 8 woodgrain options, with optional dual colour designs. 150+ powder coated RAL colours and 4 woodgrain options, with optional dual colour designs. 150+ RAL microporous painted colours and a range of authentic wood effects, with optional dual colour designs.
Glazing Double, triple or secondary glazing options, as well as additional decorative glazing. Double, triple or secondary glazing options, as well as additional decorative glazing. Double, triple or secondary glazing options, as well as additional decorative glazing.
Energy Efficiency A fully welded 6 chamber profile can achieve A+ energy ratings, and U-values of 0.8 W/m2K. An 80mm thermally broken profile can achieve A+ energy ratings and U-values of 0.9 W/m2k. Using a singular pane of treated hardwood, it’s A+ energy rated. With U-values as low as 0.8 W/m2k, it conforms to BS5713.
Security A shootbolt locking system which uses anti-drill and anti-pick cylinders ensures that they exceed building regulation standards. Additional hardware can be included. One of the strongest construction materials available and fitted with multipoint locks, it surpasses home security regulations. Additional hardware can be included. Multipoint locking systems and toughened glass are fitted as standard to accomplish BS6206 standards. Additional hardware can be included.
Life Expectancy From 35 years with no maintenance required. The anti-fade coating keeps the material looking pristine. From 45 years, with no maintenance needed. It’s corrosion and rust resistant. From 60 years. A coating of wood protection should be applied every 5-7 years.
Suitability A cost-effective choice, uPVC designs are flexible as well as being high-performance. Distinctive slimline frames will add a modern touch to any home whilst providing premium performances. Achieve the traditional timber aesthetic with the modern benefits that our responsibly sourced timber offers.
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Master Window & Conservatory Installers Association
  • Materials IconMaterials IconBrowse materials Tab arrow
  • Colours IconColours IconBrowse colours Tab arrow
  • Glazing IconGlazing IconBrowse glazing Tab arrow
  • Browse materials

    Browse colours

    Choose from over 150+ RAL colours and a number of wood effects, depending on the window material.

    uPVC Colours

    White

    White

    Black

    Black

    Grey

    Grey

    Chartwell Green

    Chartwell Green

    Cream

    Cream

    Rosewood

    Rosewood

    Light Oak

    Light Oak

    Irish Oak

    Irish Oak

    Any RAL Colour

    Any RAL Colour

    Timber Colours

    Gloss White

    Gloss White

    Ebony

    Ebony

    Mahogany

    Mahogany

    Afromosia

    Afromosia

    Chartwell Green

    Chartwell Green

    Hawthorn

    Hawthorn

    Iroko

    Iroko

    Lavenham Blue

    Lavenham Blue

    Magnolia

    Magnolia

    Oak

    Oak

    Olive Green

    Olive Green

    Walnut

    Walnut

    Any RAL Colour

    Any RAL Colour

    Aluminium Colours

    Any RAL Colour

    Any RAL Colour

    Browse glazing

    Available with either double, triple or secondary glazing to create a warm and safe home. Fully customise your windows with a choice of glazing styles and Georgian bar options.

    Textured glass

    Taffeta

    Taffeta

    Stippolyte

    Stippolyte

    Oak

    Oak

    Pelerine

    Pelerine

    Florielle

    Florielle

    Minster

    Minster

    Mayflower

    Mayflower

    Everglade

    Everglade

    Digital

    Digital

    Chantilly

    Chantilly

    Charcoal

    Charcoal

    Contora

    Contora

    Discover more glazing options

    The benefits of upgrading your glazing are truly limitless - the most notable features including increased warmth, reduced energy bills & beating future energy price hikes. For complete peace of mind, we also offer toughened glazing options to enhance your home security further.

    uPVC casement windows in Tonbridge, Rochester and Canterbury

    uPVC casement windows are one of the most cost-effective choices for new windows, this is because modern uPVC can be easily manufactured with streamlined processes nowadays. Although, the lower price tag doesn’t mean that it compromises on performance. Our advanced uPVC window profiles use a multi-chambered system, meaning it traps the heat inside and stops cold elements from entering, ensuring a comfortable temperature inside. They can last for at least 35 years without needing any maintenance, and won’t rot, warp or fade, thanks to a protective outer coating.

    With uPVC casement windows, the design options have no limit! They can be finished in over 150+ RAL colours and a number of authentic woodgrain finishes, so they can easily achieve both a contemporary style and a traditional aesthetic.

    White uPVC casement window
    Black aluminium casement window

    Slimlime aluminium casement window designs

    High-performance aluminium casement windows offer distinctively thin framed designs that no other material can achieve. The slim-framed appearance will effortlessly add a modern aesthetic to any home, whilst letting in more natural light for a brighter room. It also means you can benefit from greater views of the outdoors.

    Our ultramodern aluminium uses a thermally broken profile which breaks up currents of air, resulting in exceptional thermal performances. This innovative design also helps to keep external noises out of your home. The powder-coated frames are finished in an anti-fade coating, keeping them looking like new for over 45 years. They don’t require any maintenance, so they’re an ideal solution for busy homeowners.

    You can choose from 150+ RAL colours and a variety of woodgrain effects depending on your personal tastes. With their uniquely smooth frames, they’ll add kerb appeal to your home.

    Wooden casement windows to retain your Kent’s heritage style

    The most traditional material, wooden casement windows will easily add character to any home. They are perfect for homeowners who reside in older homes looking to retain its appearance, but can also be installed to newer homes to inject a heritage aesthetic. Our bespoke collection of custom-designed timber casements can be finished in 30 colours and a number of wood effects.

    Timber window frames are an excellent investment as they can last for at yeast 60 years without requiring much upkeep due to modern manufacturing techniques. We simply suggest revarnishing them every 5-7 years to keep the natural wooden elements protected. As it’s a naturally insulating material, you can be sure that they will keep your home at a comfortable temperature for many years to come.

    We source all of our wooden materials from only responsibly managed forests, giving you peace of mind that they’re a sustainable and ethical solution. It’s also the most environmentally friendly window material as it’s overall supply chain has a lower carbon footprint than other construction materials.

    Hardwood Casement Window
    heritage casement windows on cream house

    Energy efficient double glazed casement windows

    Our double, triple and secondary glazing options will all heighten the thermal performance of the window. Double and triple glazed designs use advanced glass panels that surround argon-gas filled chambers which eliminate energy wastage. Our secondary glazing is also able to increase the energy efficiency of casement windows in homes where building regulations restrict home improvements. By applying an additional pane of high-performance glass, they’ll keep the warmth inside.

    A window upgrade is an excellent way to improve your home’s environmental impact as you’ll need less energy to warm it up, and you’ll also see reductions in your heating bills. Depending on your chosen style and material, A+ energy ratings and U-values of 0.8 W/m2K can be achieved. We incorporate a number of features to maximise their thermal abilities, including warm edge spacer bars and beaded frames, ensuring that the heat is unable to escape from the room, and draughts won’t be able to enter for a comfortable interior all year round.

    Upgrade your windows to keep your family safe and secure

    Protect your loved ones and belongings with our modern casement windows. We fit them with either state-of-the-art multi-point locking systems or shootbolt locks, both of which have been stringently tested to relevant security standards. If you’re looking for even greater peace of mind, we can include additional security features into your new window specification.

    Casement windows are also highly durable. In terms of weather protection, they won’t be beaten. They provide airtight protection when closed and have undergone rigorous testing for wind and rain resistance. Regardless of the conditions outside, they’ll continue to perform like new for many years to come without weakening or reducing in their performance.

    White uPVC casement window

    Buying a product through FineLine offers you real peace of mind

    Customer promise

    We have the knowledge and experience to provide you with exactly what you need. Our staff are expertly trained to guide and advise you. We offer you a 10 Year Guarantee.

    Read our customer promise

    We are one of the largest Fensa Aproved regional retail companies.

    Our Accreditations

    BSI 9001 2015
    Fensa Approved Installer
    TGAS
    Trustmark
    Ultraframe conservatory installer

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