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Dunster House Ltd.
Incorporated. 1994
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Collection: Monday – Friday (9:00 – 17:00)
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Reassuringly a Dunster....

Would you like to get home whilst it’s still light and enjoy being at the table for dinner instead of eating a meal for one? Then consider placing one of our insulated garden offices in your garden. Not only will you be able to be home in time for dinner you can take your lunch break in the garden or in the comfort of your own home. With Polyurethane insulation in the Walls, Floor and Roof, this Office will keep costs to a minimum by maintaining heat at all times of year. 

Product Features
 
Garden Offices 10 Year Timber Guarantee
Garden Offices 10 Year Timber Guarantee II
 
10 Year Guarantee
 
All of the exterior timber of your Garden Office is pressure treated. We offer a genuine 10 year guarantee against rot and insect infestation on all of these parts. So you won't need to worry about little critters causing havoc or rot damaging the timber.
 
Garden Offices 28mm Sealed Unit
 
28mm Double Glazing
 

Our garden offices are supplied with domestic standard uPVC windows and doors frames in a range of four popular colours, which include, white as standard, grey wood effect, golden oak wood effect and rosewood wood effect. So you can either tie in with your home frame colours or customise your office!

 

Not all double glazing is the same and what truly makes our double glazing stand out among the rest is the sealed unit. We supply a 28mm, double glazed sealed unit for all our garden offices. These units comprise of 2 panes of 4mm toughened glass on either side of a 20mm aluminium spacer bar, designed to absorb any moisture within the sealed unit, which could lead to condensation inside the glazing. These sealed units comply to BS EN 1279 standards. This EN standard covers the requirements for insulating glass units, including thermal and sound insulation. The sealed units are independently tested to show that they will not suffer from any form of condensation within the unit.

 

We’ve been manufacturing uPVC windows and doors for over 25 years – so we really know our stuff!

 

 
Garden Offices Multipoint Locking Windows & Doors
Garden Offices Multipoint Locking Windows & Doors II
 
Industry leading window and door locking 
 
Security is something that shouldn’t be overlooked when designing a garden office, especially when storing valuable equipment. Which is why we have included our industry leading 9-point locking system on the wide opening uPVC patio doors as well as multipoint locking windows which feature secure key locking handles.
 
Our 9-point locking consists of 8 hook bolts and a 6-pin euro cylinder. All our windows feature a multi-point locking system consisting of mushroom-headed espagnolettes which move in opposite directions into metal keeps. Why would you risk your possessions by using less?
 
 
Garden Offices Smooth Plasterboard Interior
Garden Offices Smooth Plasterboard Interior II
 
Smooth plasterboard interior
 
The interior walls and ceiling of our garden offices are covered in uninterrupted plasterboard for a clean, sleek and professional look, complete with coving.
 
Garden Offices EPDM Roofing
Garden Offices EPDM Roofing II
 
EPDM Roofing
 
Our Garden Offices feature an EPDM covered roof. EPDM has been widely used in commercial and residential flat roof applications for over 30 years and has an enviable record for durability and waterproofing. We’re so confident in our choice of roof material that we give a 10 year guarantee against rain water penetrating it.
 
Being made from one large sheet it also means that the roof won’t be covered in clout nails as is the case with felt roofing, but please be aware that there may be some bubbles trapped under the EPDM material when it is laid and/or creases. The pictures above show a typical EPDM roof installation on one of our offices
 
Garden Offices pressure treatment tank
Garden Offices pressure treated timber wood
 
Pressure Treatment, Not Dip Treatment
 

All of the garden offices in our Titania, Helena, Thedore and Lienne range are fully pressure treated as standard. We take the pre-cut lengths of spruce used on the exterior and place them in a large pressure treatment tank, where the timbers are impregnated with a non-toxic preservative. We add a brown colourant during this process, giving the timber a rich brown colour. By pressure treating the timber, we can offer a genuine 10-year guarantee against rot and insect infestation.

 

This treatment prevents the timber from rot, decay and insect infestation for up to 10 years. Due to this costly but effective process we can offer our customers a genuine 10-year guarantee against rot and insect infestation on the bearers. We only suggest that you apply a good quality water repellent to prolong the longevity of the timber.   

 

Many of our competitors offer untreated bearers to keep their costs down or charge extra. Who wants to have to annually deconstruct and re-treat the bearers each year?

 

 
Garden Offices Easy To Build Panel System Kratos 5039 LR
Garden Offices Easy To Build Panel System Kratos 5039 LR II
 
easy to build panel system
 
Using a technique unique to Dunster House, we've been able to create panels that simply slot together, ensuring the rigidity and strength of this office surpasses many alternatives and is quick to build.
 
Garden Offices Avoid Planning Permission Kratos 5039 LR
Garden Offices Avoid Planning Permission Kratos 5039 LR II
 
avoid planning permission
 
All our Garden Offices are under 2.5m high so that under permitted development rights you can place the building within 2m of a boundary if you wish to. Please be aware that any building over 2.5m high needs to be placed over 2m away from any boundary. If you want to find out more about planning permission click here.
Q
What is a Garden Office?
A: A Garden Office is a garden building used to create an office away from your home, separating your work life from your home life.

A Dunster House Garden Office is made from slow-grown spruce, 4mm toughened glass and polyurethane insulation, creating a thermally efficient, smart looking product.
Q
What Foundation Do I Need For This Garden Office?
A: We recommend a flat, level concrete base at least 100mm bigger on each side. e.g. A 4m by 3m building would have a base of 4.2m by 3.2m See more details here.
Q
Do You Offer Any Guarantees Or Warranties On This Product?
A: We offer a genuine 10-year guarantee against rot and insect infestation on pressure treated timber.
Q
How High Is This Garden Office?
A: It is 2.49m (8' 2") high
Q
Do I Need Planning Permission For This Garden Office?
A: Take our quick survey to find out! We also recommend you check the government planning portal.
Q
Is This Garden Office Insulated?
A: This Garden Office contains floor, roof and wall insulation. The type of insulation we use is called Polyurethane, which is proven to retain heat better than polystyrene or rockwool. This Garden Office also feature 28mm double glazed units to aid in retaining heat.
Q
Does This Garden Office Come With Electrics?
A: Owing to the multitude of possible configurations available for power and lighting we have left these offices for customers to supply and create their own, exactly how and where they want them.
Q
Does This Garden Office Need Treating?
A: This Garden Office is pressure treated so will not need retreating against fungal decay and insect infestation for up to 10 years. However, we do recommend treating with water repellant for timber maintenance.
Q
Where Can I Visit You? Do You Have A Store Near Me?
A: We have 6 branches across the UK. Click here to find the nearest one! Please check with us before you visit if you are travelling to see a particular product.

We deliver our products 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 £200 to mainland England and Wales.


Delivery to postcode areas PL, TQ, TR, EX may take 1 week longer, beyond the delivery shown on the product page.


Delivery Price

Green - £19.99 delivery fee on all orders under £200.

Blue - Delivery to postcode areas PL, TQ, TR, EX6, EX7, EX20, EX21, EX22, EX23, EX39 may take 1 week longer, beyond the delivery shown on the product page.

Yellow - £59.99 delivery fee.

Orange - £84.99 delivery fee.

Red - We are unable to 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.



To ensure the very best quality, we only use slow-grown White Spruce Timber, which is harvested in cold climates to ensure solid, dense log rings. This gives the wood superior strength and longevity, and also a much more consistent colour than the likes of Pine.

 

Despite the care we take in selecting the very best Timber available, it’s not like predictable brick or cold steel, this natural material has characteristics and quirks unique to every log.

 

Because our timber logs once fed water and nutrients back and forth from its roots to its leaves, its very nature is to be porous and swell up when it gets wet. Any wooden product will do this throughout its life, but there are a few things you can do to help limit this movement.

 

These include:

1. A great design!

  • Don’t worry, we’ve got this one covered. We’re experts when it comes to all things timber, so we have designed our products from the ground up with its natural properties in mind.

2. Water Repellent Treatment.

  • How you customise and decorate your product is up to you, however we would recommend that you use an appropriate water repellent treatment. This really helps minimise the amount of moisture that the timber can absorb. Therefore minimising the risk of any major movement.
  • (Please note: water repellent treatment is not the same as pressure treatment, which protects against rot and insect infestation, and which we guarantee for 10 Years!)

3. Ventilation.

  • Keeping your timber building ventilated is no less important than keeping your house well ventilated. This is especially true if you plan to cover up your floorboards with something (double check with an expert, that the material is suitable to do so), as moisture can become trapped between layers of non-breathable materials and build-up, leading to floors becoming rotten.

4. Regular Seasonal Maintenance.

  • Whether you opt to build your product yourself, or have us do it for you, don’t be afraid to tighten the odd bolt here and there. Your product is a life improving investment, so it’s only right to give it some love and care from time to time. Make sure that it’s properly treated before the rainy months, and you make adjustments to doors and window frames, when needed.

 

Natural Timber Properties

After building your timber product, this natural construction will begin to ‘settle’. This means that you will likely see some natural timber imperfections appear. These types of natural imperfections can include:

 

  • Cracks

 

Cracks On Wood

 

  • Splits

Splits On Timber Held With A Green Rounded Safety Cap

  • Shakes

 

Shakes On Wood Panel

 

  • Warping / Twisting

Warped wood panels, twisted Wood panels

 

  • Expansion and Contraction

 

Expansion And Contraction Of Wood On Garden Building

 

Please be aware that, as these are natural timber properties they are not considered as defects under our Terms & Conditions (for more information, check out our Ts&Cs here). However, in most cases, these imperfections will not impact the integrity or function of your timber product, and/or can easily be rectified. For advice on how to rectify these and for more support, please get in touch with our Customer Services Team on cs@dunsterhouse.co.uk.

 

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