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Are you looking to add a stylish, functional, and hassle-free space to your property? Composite garden rooms are the modern, superior alternative to traditional timber structures.
A composite garden room is an insulated outdoor structure clad with premium composite materials—typically a durable blend of recycled wood fibres and plastic resins. This engineering creates a cladding that combines the natural look and feel of wood with the unmatched durability and low maintenance properties of advanced polymers.
Composite materials are built to withstand the harshest outdoor conditions across the UK.
Unlike wood, composite cladding is inherently resistant to rot, fungal growth, termites, and other pests. The material is highly resistant to moisture, preventing swelling, warping, or cracking when exposed to rain or humidity. Excellent UV resistance ensures the cladding won't fade or deteriorate in direct sunlight, maintaining its original look for decades.
Composite rooms do not require regular sanding, staining, painting, or sealing to maintain their appearance or structural integrity. Routine maintenance is as simple as a quick wash with soapy water and a soft brush—no intensive labour required.
Our composite garden rooms are designed for all-season use, ensuring a comfortable environment whether it’s summer or winter. Constructed with high-quality, built-in insulation (e.g., Rockwool/Kingspan) and high-performance double-glazed windows.
The high insulation levels regulate interior temperature, significantly reducing the need for excessive heating or cooling. Enjoy lower energy bills and a more sustainable living space with a reduced carbon footprint.
Composite cladding provides a sophisticated, seamless look that enhances the aesthetics of any garden space. Choose from a wide range of exterior finishes, textures, and contemporary colours to match your personal style and home architecture. Select from various styles (e.g., Canopy, Cube, Border) and customise interior features, including lighting, flooring, and wall finishes, to create your perfect space.
Our high-specification composite garden rooms offer a perfect blend of luxury, efficiency, and longevity, making them the ultimate home extension solution. Whether used as a home office, gym, studio, or relaxation space, each room is carefully engineered to provide comfort, functionality, and year-round usability. The result is a premium home extension that enhances your living space and adds lasting value to your property.
Sustainable Materials with Lasting Performance
Our composite cladding is manufactured from recycled materials, reducing waste while providing a durable and environmentally responsible building solution. Designed to mimic the natural look of timber, it enhances structural strength, improves weather resistance, and ensures long-term durability—delivering a robust, low-maintenance finish.
Energy-Efficient Glazing
Energy-efficient glazing designed to maximise natural light while maintaining excellent thermal performance and year-round comfort. It helps regulate internal temperatures by reducing heat loss in winter and limiting heat gain in summer. The result is a bright, open living space that feels connected to the outdoors, without compromising on insulation or security. Built for reliable performance in all seasons, it delivers consistent comfort throughout the year.
Integrated Lighting for Every Space
A range of lighting options is available to suit how you use your garden room, from practical task lighting to softer ambient solutions. Each setup is designed to enhance usability and atmosphere, creating a comfortable, well-lit space throughout the day and into the evening.
Use Cases
The adaptability of these structures makes them perfect for almost any purpose. What will you create?
Garden Office
Home Office or Garden Office
A distraction-free workspace separate from the main house. Optional features include integrated power sockets and soundproofing to create a fully equipped and comfortable working environment.
Home Gym
Home Gym / Studio
A dedicated space for fitness, yoga, or an art studio. This option can include robust flooring and large windows to maximise natural light and create an inspiring, practical space.
Garden Lounge
Leisure / Relaxation Retreat
A soundproofed haven for reading, music, or gaming. Custom lighting and tailored wall finishes help create a personalised space for downtime and relaxation.
Guest Annexe
Guest Annexe
Separate, comfortable accommodation for family or guests. This option can be configured with the potential for plumbing and kitchenette integration, depending on your chosen design requirements.
Construction Details
Pile Foundation
Foundation
Our pile foundation system comes as standard with all our rooms. Holes are hand dug with shovels at 1m intervals across the whole footprint of the structure. These are then filled with concrete and galvanised steels are inserted onto which the joists of the structure are anchored. If your site has a solid base (for example a concrete slab, flagstones, hardcore or cobbles) please let your Sales Consultant know so that we can assess its suitability for our foundations.
We are sometimes able to make use of an existing concrete pad (for example where there has been an outbuilding) if it is in good condition and more than 10cm deep. If your room design is larger than the existing base, this can be accommodated through a combination of the existing pad and supplementary pile foundations, depending on the nature of the plot.
Wall Construction
Wall Construction
Using modern and advanced construction technology, the walls are multi-layered:
• 18mm cladding – various options available (composite, cedar or render)
• 25mm x 25 tanalised timber to create air circulation space
• Waterproof membrane
• 4"x2" c16 structural timber containing acoustic insulation
• Celotex rigid insulation
• Plasterboard and plaster skim coat ready for you to decorate
Roof Construction
Roof Construction
Our roofing panels and profiles are produced to form an insulated roof system that meets the modern need to create energy-efficient and aesthetically pleasing buildings. Our roofs are comprised of composite panels which allow rainwater to disperse and eliminate the risk of leaks. They are not designed to take solar panels or to be used as nature roofs either of which would invalidate your warranty. Our roof panels are finished with ridged galvanised steel in anthracite grey and are insulated with 100mm of Kingspan insulation.
To effectively disperse rainwater, the roof is sloped gradually from front to back in order to direct the water to the guttering and downpipe at the back of the room. This slope is at the rate of approximately 3.5cm per metre of depth. Therefore the back of the room will be slightly lower than the front of the room. Please note that if you are viewing your room side on, the slope, while slight, will be visible, particularly if you have glazing or doors on that elevation.
Floor Construction
Floor Construction
The floor provides 75mm of rockwool insulation between the joists and 25mm of kingspan insulation. Atop is an 18mm subfloor and then your choice of laminate flooring colour.
Style & Colour Options
Choose from a range of architectural styles, including Canopy, Cube, and Border, each offering a distinct external aesthetic to suit your home and surroundings. You can then select from three composite cladding colours — charcoal, taupe, and pebble — to refine the final finish, whether you prefer a bold contemporary statement or a softer, more natural look. Together, these options allow you to create a space that feels both functional and thoughtfully designed.
Canopy
Cube
Border
Design Styles
Canopy, Cube, and Border garden rooms each offer a distinct architectural style, giving you the flexibility to choose an external look that complements your home and surroundings.
Charcoal
Taupe
Pebble
Exterior Finishes
Charcoal is a deep, modern tone that creates a bold, contemporary finish. Taupe is the most versatile option, with a balanced tone that can lean more grey or more brown depending on the light, making it easy to pair with a wide range of exterior finishes. Pebble is a lighter, softer shade, ideal for a more subtle, natural look that blends well into garden surroundings.
Flooring Options
All rooms come with oak laminate flooring due to its hard-wearing and stable properties; included is a 10-year manufacturer’s guarantee covering finish and wear. Pre-primed timber skirting completes the look. You can choose from Grey Oak, Oak and Dark Oak.
Grey Oak
Oak
Dark Oak
Oak laminate flooring offers a range of benefits:
• Replicates the warm, rich tones and intricate grain patterns of natural oak, providing an elegant and timeless appearance.
• Classic design complements a wide range of interior styles.
• Engineered to resist scratches, stains, and dents.
Window & Door Options
Our windows and doors are available in either UPVC or Aluminium. We provide a wide range of configurations to offer a solution tailored specifically to your modern garden room. You can choose from single doors, French doors, bifolding doors and sliding doors.
Sliding doors have one fixed pane and the other pane(s) slide. All external doors open outwards unless otherwise specified. If you choose French Doors, we will ask you which door you would like to be your “master” door. This is the door you will use on a daily basis to enter and leave your room, with the other door opening when required. If you choose bifolds or sliding doors, we will ask you which way you would like them to slide/fold.
UPVC Door
UPVC
UPVC Doors and Windows offer a blend of durability, efficiency, and style. They are highly resistant to weathering, and provide excellent insulation, keeping your modern garden room warm in the winter and cool in the summer. UPVC is also easy to clean and maintain. All UPVC doors and windows come in anthracite colour on the outside and white on the inside unless otherwise specified.
Aluminium Door
Aluminium
Aluminium doors and windows combine strength, durability, and aesthetic appeal. Despite being lightweight, aluminium is exceptionally strong and can support large panes of glass, offering unobstructed views and a modern aesthetic. Aluminium does not need to be painted or treated regularly. All aluminium doors and windows come in anthracite, both inside and outside.
Internal Lighting Options
Our standard track light, which includes four adjustable spotlights, is included in the price of your room. However, we offer a variety of additional lighting options to suit your needs and taste. You can customise your space with wall lights, surface-mounted LED pads, or downlights. We are happy to supply and fit these alternatives to create the perfect ambience for your garden room.
Track Light
Track Light
Our standard track light with 4 adjustable spots is included in the price of your room. You are also welcome to supply your own track light and we will adjust the price of your room to reflect this. We always supply warm white bulbs in our lighting as they are ideal for creating a calming and homely ambience.
Wall Light
Wall Lights
Wall lights can look very stylish in a garden room. If you are considering using wall lights instead of ceiling lights, do bear in mind that you tend to require more wall lights than track lights to give the same level of lighting. There is also a cost implication for fitting/wiring each one, and you will need to supply your chosen wall lights.
LED Pad
Surface Mounted LED Pads
Another option is surface-mounted LED pads. The available sizes are 50cm x 50 cm, 60cm x 60cm, 60cm x 30cm. Depending on the size and specification your room price will be impacted.
Downlight
Downlights
Your final option is recessed LED downlights. These can add a sleek, uncluttered modern look to your room. For these, we need to create a void in the ceiling to house so that the lights will then be flush with the ceiling. This will reduce the internal headroom by a minimum of 50mm and will incur an additional cost.
Exterior Lighting Options
Our canopy, border and concave rooms come with recessed downlights. Additionally, you have the option of adding black PIR lights which finish the room well and provide useful lighting when accessing your room at night.
Electrical and Heating Options
As standard, all rooms come with brushed aluminium fixtures and fittings, including 4 double sockets, 1 light switch (2 if you have selected a canopy room), and a 1.5kw WiFi-enabled heater. We can also accommodate a wide range of additional extras such as sockets, lighting, USB outlets, and brush plate outlets for TVs. If you need extra sockets, we’ll fit them to meet your requirements and will specify this in your design. The position of all the electrical sockets and fitments will generally be agreed on-site with your installation team.
Panel Heater
WiFi-enabled heater
All our rooms come with an electric panel heater as standard. Our panel heater is WiFi enabled, which means you can switch it on from the house in advance, so your room is toasty when you’re ready to use it. It can also be connected to your smart speaker. You can upgrade to a programmable heater if you wish.
Underfloor Heating
Underfloor Heating
Underfloor heating is available as an option for your room. Because the rooms are so well insulated, most of our customers find that the panel heater is more than sufficient to keep them warm in the winter (and cool in the summer).
However, you can certainly specify UFH if it is right for your circumstances. We supply UFH with a Wi-Fi thermostat. Please talk to your electrician before deciding as the UFH may impact on the type of cable you need to connect to your main supply.
Installation
Our modular designs and efficient construction process mean you can start enjoying your new space sooner. Our professional installers hand-build your composite clad garden room on-site, typically within 5–7 days, ensuring minimal disruption to your daily life and garden.
Frequently Asked Questions
Composite garden rooms are designed for long-term durability. Thanks to their robust materials, they are resistant to rot, warping, and weather damage, meaning they can last for many years with minimal maintenance.
Very little. Unlike traditional timber structures, composite materials do not require regular painting, staining, or sealing. Occasional cleaning is usually enough to keep the room looking its best.
Yes — composite garden rooms are designed for year-round use as standard, with insulation and a considered specification that helps maintain a comfortable and practical space in all seasons.
Modern Garden Rooms structures are covered by a comprehensive guarantee against design and manufacturing faults, material failure, corrosion and rot for a period of 10 years from the date of installation provided that the company installed the building. Doors and windows, floor coverings, electrical installations, electric appliances, heaters, accessories, telecoms, network and TV connections are covered by a one year guarantee.
Many garden rooms fall under permitted development, but it depends on size, location, and intended use. We recommend checking with your local council or consulting with our team, who can advise on planning requirements.
Absolutely. Every aspect of a composite modern garden room is customisable, from overall dimensions to interior layout, window and door positions, and storage solutions.
Yes. Electrical systems, lighting, and even plumbing for a bathroom or kitchenette can be integrated into your bespoke garden room, depending on your requirements.
Unfortunately not – due to the construction of our rooms they need to remain freestanding, we can only build up to 400mm to any solid obstacle (such as your house or a wall).
We ask that the site be clear of existing structures, trees and shrubs etc, but if this is difficult for you, we are always happy to quote for this. During the design process, we will talk you through site and access requirements. There may also be local planning requirements to be aware of. As fwith any build, we will need access to nearby parking for the delivery of materials, and clear, STRAIGHT access to the build site.What preparation / clearance work do we need to do?
