KENWIN
GARDEN ROOMS
Precision in Every Corner
At Kenwin Garden Rooms, our construction services go beyond building structures; we craft experiences. With a dedication to precision and an unwavering commitment to excellence, our team transforms dreams into reality.
Groundwork & Base
The base of the garden room sits on a concrete pillars to get it perfectly level. The ground underneath the base has a membrane to stop any growth or weeds. The base is formed out of (4" x 2") Kiln Dried C24 Treated timber, braced with joist hangers then insulated with 90mm PIR Insulation and topped with 22mm Egger Protect P5 Tounge & grove Moisture Resistant Boar
Walls & Roof
The walls are made with (4" x 2") Kiln Dried C24 Treated timber then insulated with 50mm PIR Insulation and boarded with 11mm Sterling OSB3 Board. I wrap the garden room with an IKO Rubber Shield Eco Extra Breather Membrane.
The roof is constructed with (5" x 2") kiln-dried C24 treated timber and topped with 18mm Sterling OSB3 Board. there is a vapour barrier, 90mm PIR Insulation and then the EPMD rubber roof that has a 50-year life expectancy.
Your chosen windows and doors will be fitted to make your garden room fully water tight. followed by the cladding and this is where you really start to see your Kenwin garden room come to life.
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Electric & plumbing
This is the point where we get all the cable run in the garden room to the right position for lighting the interior & exterior, including power sockets and any added extras you may need (first fix)Installing pipe work (if applicable).
Interior
We then plasterboard the walls and ceiling ready for plastering and fitting the skirting and any door lining/architrave.
Decorating
Painting and decorating the interior to your design and specification. 2nd fix (all fixtures and fittings i.e. lights and plug sockets).Treating the exterior with a UV protection oil that completes the overall look of your build.
Costs vary depending on the size of the room and the internal specification. As a guide, our garden rooms are typically priced at around £1,400–£1,600 per square metre.
Usually not, provided the garden room falls within permitted development rules. A key restriction is that if the building is within 2 metres of a boundary, its maximum overall height is 2.5 metres. Other restrictions can apply, particularly for listed properties and homes in conservation areas.
Absolutely. A site visit allows our team to see where the garden room will be built, take accurate measurements, understand access and the garden layout, and discuss your design ideas. It gives us everything we need to design a genuinely bespoke build for your property.
A typical garden room build takes approximately 4–7 weeks, depending on the size, specification and site conditions.
You can build right up to the boundary, but we generally recommend leaving a small gap to allow for guttering, drainage and future maintenance.
Yes. We provide a detailed layout with dimensions, 3D designs and an AI-generated visual of the overall look. This helps you visualise the finished room and make any amendments before the build begins.
We do not offer finance or payment plans. Instead, we split the project cost into manageable staged instalments, with only a 10% deposit required to secure your start date.
If you live in a conservation area or national park, or your property is listed, permitted development rights may be restricted and formal approval is likely to be required. We recommend checking with your local planning authority before proceeding.
Yes. We can demolish and remove existing sheds, patios and other site materials before the build starts. We’ll assess the work required and provide a separate quote for this service.
Yes. Electrical provision for lighting, heating and Wi-Fi connectivity is straightforward and can be included. If you would like running water, a sink or a toilet, this requires specialist plumbing and connection to the property’s water and drainage systems.
Maintenance is minimal and depends mainly on the cladding. Composite cladding usually only needs an occasional hose-down, while cedar cladding should typically be treated around every 12 months to keep it looking its best.
