Dunster House Ltd.
Incorporated. 1994
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    fully insulated
    The Warmalog is fully insulated, promoting heat retention and saving you money on your heating bills. For example, roof insulation prevents heat rising and escaping. We always supply Polyurethane insulation, a far better insulator than rockwool or polystyrene. We use 30mm thick polyurethane insulation, sealing off the building from the elements to help save energy. The Warmalog achieves a low ‘U’ value of 0.59, which is a great score which shows its insulation efficiency.
    avoid planning permission
    The Rhine Warmalog is under 2.5m high which means, under permitted development rights, buildings under 2.5m high can be placed as close as you want to a boundary (e.g. a fence line) without planning permission. Buildings that are over 2.5m high, however, need to be placed over 2m away from any boundary (e.g. a fence line), which means that with taller buildings you end up with a lot of space behind them. If you want to find out more about permitted development rights see our planning guide.
    toughened glass
    We use 4mm toughened glass in our windows and doors for increased safety and security. It is much more difficult to scratch or bend than the plastic alternatives, such as styrene, acrylic and Perspex, so will preserve your clear view out for far longer. It is also a lot harder to break than normal glass, and if it is ever broken it is designed to shatter into many small pieces, rather than scattering dangerous shards everywhere.
    24mm double glazing
    The Warmalog comes complete with 24mm sealed units for increased insulation. It is an excellent way of insulating your Warmalog and extending its usage from a seasonal building to one that can be used throughout the year. The double glazing also offers you better sound dampening than single glazing. The sealed units are made by ourselves to European Standard EN1279 and are made up of two sheets of 4mm toughened glass and a 16mm spacer.
    slow-grown spruce
    We use slow grown spruce throughout our Warmalog as it is a superior timber to the commonly used timber pine. Spruce is less porous than pine and so less likely to shrink, warp or split. It is also a less resinous timber, which makes the possibility of sap ruining your clothes or furnishings much less likely. We only select slowly grown timber from colder climates which also helps keep the timber more stable as the rings are densely packed. 
    pressure treated bearers
    The Rhine Warmalog features pressure treated floor bearers. The treatment, applied by us, ensures that the bearers arrive at your door already prepared. We guarantee that the pressure treated timber will remain free from rot and insect infestation for up to 10 years, with no need to annually re-treat. These are the parts of the cabin most at risk from damp conditions, so it's good to know they are well-protected! 
    10 year guarantee
    Our Warmalog cabins come with a genuine 10-year Guarantee against rot and insect infestation for our pressure treated timber. Other companies claim that they offer a 10-year Guarantee on their timber. If you read the small print, you'll find that these guarantees are pointless. They cover the cabin against rot and insect infestation only if you the customer, treat the cabin every year with a good quality preservative. Our floor bearers arrive at your door already treated.
    tall walkthrough height
    The Rhine Warmalog features extra tall doors to allow you to move awkward objects or furniture in and out of your new cabin with ease. The tall walkthrough height of 1.82m (5’11’’) minimises the chance of bumping your head. 
    avoid sagging roof
    A sagging roof can develop over time due to cheap manufacture. Our heavy duty 140mm by 45mm wide supporting roof beams prevent this unsightly sagging.
    4-point locking system
    Windows and doors are at the heart of your Wamalog’s security, and we design ours to ensure that only welcome visitors can enter your cabin. The Warmalog features our four-point locking system: a hook, locking latch and two roller cams. We combine this with a 6 pin Euro cylinder, the same type of lock cylinder  you would find on a modern domestic door.
    Adjustable hinges and friction stays
    The Rhine Warmalog feature easy to adjust hinges, allowing you to make minor changes if ever required. The windows on this range have the same friction stay hinges as we supply on our uPVC windows, meaning that you can open the window and leave it open with just the hinges taking the load, with no need for a stay arm. 
    storm braces
    To control natural expansion and contraction in the timber, the Warmalog features steel straps on the inside and outside of the cabin known as storm braces, Secured by screws and bolts, these braces are adjusted to spread the timber's natural movement equally across a much larger area, thus avoiding the worst effects of localised expansion and contraction within the wood. 

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Get the most out of your Log Cabin by using it all year round. Our all-new combination of insulation materials in the walls, floor and roof make it easy to keep the temperature just the way you want, whenever you want!

You must have a solid concrete base that is square and level to successfully build this insulated log cabin.  For the Rhine Warmalog this base should measure 4.0m x 3.2m. The only extra items needed are a superior quality light coloured 'Barn' paint to seal the outside, and a silicone sealant for the joints after decorating. These are available from your local decorator supply store.

Insulated Warmalog cabin walls are comprised of logs with a triple Tongue and Groove 62mm sandwich of timber and polyurethane. This provides better thermal characteristics than any comparable solid wall log competitor while retaining an affordable price. Yet another amazing innovation from Dunster House!

Not only the walls of the Warmalog Cabins are insulated. The floor has a 50mm insulated structure and the 60mm roof is similarly insulated. The Double-Glazed windows are 24mm thick including 2 panes of 4mm toughened glass. These and other thermal design features produce a U value of 0.59 for the Warmalog cabin. Thus, you can be sure that your cabin will retain its temperature in the cooler months as well as the warmer months.

This high-quality timber building can be adapted to a number of functions, including home office, music room, a gym or even a bar. Whether you need the space for your business or as a fitness studio or any other special purpose, you can be sure that the passing of the seasons is not going to restrict your use of your special space. Sturdy and secure, Warmalog cabins feature a Multi-Point Espagnolette locking system and special domestic hinges on its extra wide-opening French Doors, as well as large windows. Pressure treated bearers keep the damp from the base of the cabin, and up above, long hefty Purlins support the roof.

The Warmalog is easy for you to assemble and enjoy year-round!


Ideal for a Home Office, Play Room, Man Cave, Gym, Summer House. Beauty Parlour, Kids Playroom, Therapy Room, Music Room, Teenage Den, Workshop, Pool House, Home Cinema, Art and Painting Studio, or just fit it out with a bar and fridge with some chairs and tables for pleasant relaxing times with your friends and family. Their uses are limitless!


You will need to prepare a solid concrete base that is square and level to allow you to build this insulated log cabin successfully on your property.

We recommend a base of:
3.0m x 3.2m for the Avon Warmalog
3.0m x 6.0m for the Avon Extended Warmalog
4.0m x 3.2m for the Rhine Warmalog
4.0m x 6.0m for the Rhine Extended Warmlog
5.0m x 3.2m for the Severn Warmalog.
5.0m x 6.0m for the Severn Extended Warmalog

Delivery Online Tracking

We deliver our garden buildings to mainland United Kingdom (England, Wales and Scotland). Some exceptions apply; these are illustrated on the map below.

Scottish areas may be subjected to slightly longer delivery turnarounds, please contact us for details. FREE delivery on selected products over £199 to mainland England and Wales.
*Excludes rabbit products which are subject to a delivery charge.

Delivery Price

Green - £19.99 delivery fee on all orders under £200.
Yellow - £59.99 delivery fee, was £119.99 prior to 10/09/15
Orange - £84.99 delivery fee. was £169.99 prior to 10/09/15
Red - We do not deliver to these areas.

Assisted Delivery

If you cannot provide an able bodied person to offload the vehicle with the help of our driver, we can provide additional manpower with our Assisted Delivery Service. The driver will arrive with some help to unload the lorry, meaning that you can put your feet up.

We offer this service on all items that are delivered, we do not offer this on our couriered products. Prices for this service can be found on individual products.

Should you require further information on our standard or assisted delivery services, please contact a member of our Sales Team.

Scottish areas may be subjected to slightly longer delivery turnarounds, please contact us for details.

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