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Premium Local Installers

Local Manufacturing

Bespoke Product Designs

Made in the UK

High performance orangery & conservatory installations in Bristol, Bath, and surrounding areas

Designed to meet your specific project requirements, we supply and install high quality orangeries and conservatories that are built to stand the test of time. Adding essential space, light, and insulation where it’s needed most, our bespoke conservatory and orangery installations set the standard for snug, spacious, and stylish glazed extensions.

Available with premium uPVC or aluminium frames and advanced double glazing or triple glazing, sparkling conservatories are typically chosen to bring the outside in whilst solid orangeries can create the look of a full extension without any of the extra hassles, ie planning permissions.

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Chartwell green conservatory installation
Aluminium dark green orangery

Product Features

Dedicated to delivering exceptional orangery and conservatory installations, the most notable features you need to be aware of include:

A++ Energy Ratings

Depending upon the glazing & material (uPVC or aluminium), our window and door systems can offer Energy Ratings from A++ to C.

Range Of Colours

A range of refreshing shades, easily matched to your home's unique brickwork and stylings to make it look like it's always been there.

Double or Triple Glazing

All of our installations utilise high performance double and triple glazing from local industry-leaders Cwmtillerty Glass Centre in Gwent in southeast Wales. Decorative and privacy glazing is also an option worth considering.

Huge choice of accessories

As well as specialist glazing upgrades like innovative self-cleaning glass, create the perfect look with a range of stylish conservatory crestings and finials, or reduce heat loss further with an orangery complete with insulated pelmet and plastered ceiling.

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What are the benefits of an extension for your home?

Orangeries and conservatories are a brilliant way to extend your home and create a bright, versatile living space that connects seamlessly with your garden. Whether you're after a contemporary glazed extension or a more traditional orangery with brickwork and a lantern roof, these structures add space, natural light and style to any property.

Key Benefits of Orangeries & Conservatories

  • Extra living space – Ideal for dining rooms, lounges, home offices or playrooms, they provide practical, year-round space for growing families or modern lifestyles.
  • Flooded with natural light – Large glazed sections and optional roof glazing bring in an abundance of daylight, reducing the need for artificial lighting during the day.
  • Tailored to your home – Choose from a variety of styles, layouts, materials and finishes to suit both period and modern properties.
  • Enhanced kerb appeal – A well-designed orangery or conservatory adds character and value to your home, making it more attractive to future buyers.
  • Thermally efficient – Modern glazing and insulated roofs help maintain a comfortable temperature all year round, making the space usable in any season.
  • Blends indoor and outdoor living – Enjoy panoramic garden views and a seamless transition between your home and outdoor space.
  • Low maintenance options – Choose high-quality materials such as uPVC or aluminium for a long-lasting structure that requires minimal upkeep.

Whether you prefer the classic feel of a conservatory or the solid, room-like feel of an orangery, both offer a stunning way to enhance your home’s living space, functionality and value. Designed for year-round enjoyment, they are a stylish and practical investment in your lifestyle.

White uPVC Victorian conservatory
  • Colours
  • Furniture
  • Security
  • Colours

    Standard or custom colours & effects

    Smart Systems aluminium glazed extensions are available in any RAL colour you like, including specialist dual colour, textured, and anodised finishes. Whereas Spectus uPVC systems are available in over 60 colours with bevelled (flat) or ovolo (curved) frames, as well as authentic woodgrain finishes designed to seamlessly match virtually any property style.

    White

    White

    White Woodgrain

    White Woodgrain

    Rosewood

    Rosewood

    Light Oak

    Light Oak

    Cream

    Cream

    White

    White

    Textured Anthracite Grey

    Textured Anthracite Grey

    Off White

    Off White

    Grey

    Grey

    Gloss White

    Gloss White

    Dark Red

    Dark Red

    Dark Grey

    Dark Grey

    Dark Green

    Dark Green

    Dark Brown

    Dark Brown

    Dark Blue

    Dark Blue

    Cream

    Cream

    Brown

    Brown

    Black

    Black

    Anthracite Grey

    Anthracite Grey

    Furniture

    Orangery & conservatory window & door hardware

    Designed for the busiest homes, choose from a range of enduring, stylish, and practical handles and locking mechanisms to ensure your new glazed extension space is as unique as you are.

    D Handle

    D Handle

    Shootbolt Handle

    Shootbolt Handle

    Curved Lever Handle

    Curved Lever Handle

    Lever Handle

    Lever Handle

    Peardrop

    Peardrop

    Monkey Tail

    Monkey Tail

    Cottage

    Cottage

    Avon Slimline

    Avon Slimline

    Swan

    Swan

    Security

    Aluminium bifold door handles

    Secure orangery & conservatory installations

    We use top quality window and door hardware from industry-leaders such as Kenrick, Yale and ERA to ensure your new glazed extension remains safe and secure for longer.

    Creating an unforgettable orangery or conservatory couldn't be simpler!

    At DM Windows, we have found the perfect balance between providing the highest quality orangery and conservatory products whilst remaining affordable and delivering the personal touch to each and every one of our customers.

    Working in partnership with the best local manufacturers, thanks to their exceptional manufacturing processes, we can guarantee precision-engineered uPVC and aluminium glazing products. Combined with our professional team of Certass accredited installers, you can count on our installations for long lasting performance and absolute confidence that your new glazed extension complies with the latest safety and security regulations.

    Contact Us
    bifold doors installation
    Speech Mark

    I’ve just had my bi-folds and window fitted by DM windows. They look great, the service was excellent and they took away my old patio doors and window.

    Deborah Bedingfield

    windows and stable door installation
    Speech Mark

    Brilliant company, I can’t recommend them enough. The process from start to finish has been professional and friendly, they are super helpful and have gone above what I expected.

    Helen Daw

    Light oak effect residence collection windows interior view
    Speech Mark

    The surveyor, office and installation team were very good. I would recommend and use them again.

    Modern black flush sash windows installation
    Speech Mark

    Worked well and tidy. Very helpful and nothing was any trouble. Will use again for the rest if work that needs doing

    Spectus light oak effect front door
    Speech Mark

    Fitted new front door, frame, panel and window, great service start to finish.

    Carl Herbert

    Certass Certification
    Smart
    Distinction Doors
    Spectus
    Residence Collection
    Korniche
    Origin