Swallow Mallard T-Shaped 8ft 9' Wide Wooden Greenhouse

Need any help? Our friendly customer service team are on hand to help guide you through your purchase so please feel free to give us a call on 03452 505502 or send us an email at online@downtownstores.co.uk and we'll be more than happy to help you make your dream garden a reality.

The Mallard Greenhosue from Swallow Garden Buildings has a large gable width and is also available in three standard lengths. Guttering and two front returned stagings are supplied as standard with this model.

KEY FEATURES:

• The redwood pine glazing bars are 58mm x 32mm finished size.
• All boards are 12mm finish tongued and grooved and fixed with stainless steel nails.
• All the timber is thermally modified.
• The inward opening door has a mortise lock and Stainless steel handle.
• Glazing is toughened safety glass.
• All the glazing is slid into a groove and sealed with quality silicone.
• Each roof vent has an Automatic opener.
• Full length staging down one side with centre support (width 520mm, height 745mm).
• There is a specially turned apex finial for that classic look.
• The ridge and top vents are sealed with a specially machined timber capping.
• 24mm black PVC damp barrier screwed to the base.

INCLUDED AS STANDARD:

• Installation & delivery
• Full length, 520mm wide staging 
• Toughened safety glass
• PVC damp proof barrier
• Up to 8 Auto Vents (depending on the size of the Greenhouse ordered)
• Inward opening door with mortice lock with stainless steel handle 
• Turned apex finial for that classic look 
• Guttering system - available in black only

WHAT IS NOT INCLUDED / OPTIONAL EXTRAS:

• Building Porch - Available in a Standard, Painted or Oiled wood finish
• Extra Staging - available in a Standard or Oiled wood finish
• High Level Shelf - available in a Standard or Oiled wood finish
• Potting Bench with Shelf - available in a Standard, Oiled or Painted wood finish
• Cold Frame - available in a Standard, Oiled or Painted wood finish
• Black Ornate Door Handle
• 2ft Side Vent - frame available in a Standard, Oiled or Painted wood finish
• Extra Rear Greenhouse Doors - Single or Double doors available in a Standard, Oiled or Painted wood finish

Important information:

The delivery lead time is a guide only. The will supplier aim to have your new greenhouse delivered and installed between 5-8 weeks from the date that you confirm that your base is ready. Deliveries to certain remote postcodes are not possible, if you have any questions please do get in touch with us before placing your order. 

Standard Direct Delivery

Items that are sent using our Direct Delivery Service, are delivered direct from our suppliers, to you.

Delivery is FREE for this postage method. The details of what additional services are provided, can vary across the specific product type that is being ordered.  

Please be aware that we do not offer free returns, so unless there is a fault with your item, then you will be required to cover the cost of returning it to us, or for us to collect the item

If you have any questions regarding the delivery options for this product, please do not hesitate to contact us.

Unique to Swallow Greenhouses, all Thermowood used by Swallow (GB) Ltd. is manufactured from quality red wood pine and this high performance timber from Finland is perfect for wooden greenhouses. It’s heat treated to over 200 degrees to remove moisture and resin.

This process results in a consistently coloured timber, with improved dimensional stability and most importantly improved durability against decay. This a long lasting performance wood developed for exterior cladding of buildings in harsh Scandinavian weather, making it perfect for building tough wooden greenhouses.

Benefits include:

• Destroys resins and proteins and stabilises the timber.
• All bacteria is killed, resulting in a sterile material
• The timber is totally natural and chemical free
• Reduced thermal conductivity
• Improves durability against decay
• Improved dimensional stability
• Good choice for allergy sufferers

Swallow buildings are available to purchase in three options:

Natural ThermoWood Option:

This option has had no treatment at all, it needs to be treated within 3 months after installation, to prolong the life expectancy of the building. Water, condensation can stain the timber and may discolour it, unless it gets treated and also needs regular maintenance.

Oiled Option:

If you choose the oiled finish, then Swallow will give the building one coat of oil treatment before it’s all glazed and sealed ready to be installed.

Swallow recommend that you oil the building annually, outside, and also you can coat the inside to help cut down on water staining which can happen from condensation. This keeps the building looking fresh, it helps to maintain its original colour, and protects the timber from the elements. Swallow recommend something like Osmo Oil or a similar quality.

Painted Option: 

When you choose the painted version, firstly the building goes through quality control, then it’s given its first topcoat, once its dry it’s then re-checked and it’s given its second topcoat, then finally once dry it’s glazed and sealed.

When Swallow have installed the building, they will leave you with a pot of touch up paint, as sometimes the building may occur little marks from transportation. Their fitters will inspect the building once it’s installed and do a walk around with you once it’s finished.

Painted buildings won’t need re-painting annually, it may be every 3-5 years depending on where the building is situated in the garden. If it’s tucked away and not in direct sunlight, and not open to all the elements, then it may last longer before you need to re-paint it. You would have to trust your own judgement on this.

The ideal base for the greenhouse would be:

i) Paving slabs to encourage natural drainage OR
ii) Solid concrete base to the size of the greenhouse with a minimum 4 inch thickness OR
iii) Concrete strip footing with a minimum 4 inch thickness
iiii) Dwarf wall can be built - heights to be advised

The base can be larger than the greenhouse if required by the customer but it must not be any smaller. Most importantly the base must be level.

On all buildings Swallow encourage regular maintenance, to keep Mould, bugs to a limit.

Condensation is something that cannot be avoided in Greenhouses/Potting Sheds, when the temperature heats up the water will run to the lowest point, if left then this will start to turn the timber black, please clean these area’s as regular as possible to keep it to a bare minimum. The key to controlling it is plenty of ventilation, open the door whenever you can, use a heater in the winter months if possible.

Clean the inside with Jeyes Cleaning Fluid on a regular basis. It is normal for a Greenhouse to have some water ingress. As far as Swallow are aware there is not a mainstream greenhouse on the market that is 100% leakproof. Water can get in from the roof vents, side vents, under the door, this is all a common occurrence and not a fault in the manufacturing of the Greenhouse/Potting Shed.

If you decide to make the base larger than the actual size of the building, then this can cause water to get in under the damp proof barrier, it can also allow spilt water inside the greenhouse to escape.
We point this out in the greenhouse information that we do not seal under the damp proof barrier, we leave this to the customer, if you decide to seal it just use a Black Waterproof Silicone Sealant.

Another issue with making the base larger than the building is heavy rain can bounce on the outside and hit the bottom of the building, where it can get in between the boards and the bottom rail and rise up the bottom boards and may start to go discoloured. Once the building is installed, then it may be an idea to lay pea gravel/shingles around the bottom to stop the rain bouncing on the floor.

One thing Swallow do not recommend is hanging anything from any part of the roof, legs, supports, trusses etc these are there simply to hold the roof in place and support the roof. Hanging any items ie: Hanging Baskets, fans, heaters etc. will just pull down on the structure and may cause damage to the building over time, the roof may then begin to bow and break the seals on the sealant. This will make the warranty void.

Once the building has been installed, we ask that you look around the building before the fitters leave your property, to make sure you are happy with the building.