New and improved range for 2010! March - 30% off package prices (not applicable on the Victorian range)

Garasheds supply the full range of Alton cedar free standing and lean-to greenhouses.

The Alton was Britain's very first greenhouse specially designed for the domestic market back in 1921. The modern Alton has a pedigree stretching back more than 80 years and has earned itself a reputation for innovative design, robust construction and outstanding durability. Made from the highest quality Western Red Cedar, Alton greenhouses are stronger than most aluminium, give better heat retention and are far more resistant to wind damage. In addition, all Alton cedar is dipped in a preservative treatment to ensure minimum maintenance and long life.

a selection from our range of Alton timber greenhouses

Standard features:

  • 4mm toughened glass is now standard on all Alton greenhouses!
  • Made from finest Canadian Western Red Cedar - a managed and re-planted natural resource, which is inherently rot resistant
  • Unique low-level 'Ventaccess' ventilation system fitted as standard in addition to roof vents - which discourages common plant disease 'grey mould'
  • Traditional and Amateur models: easy glide sliding door (kerbless for easy wheelbarrow access)
  • Better glazing: full-length glazing panels giving maximum light transmission, held in place by Cedar glazing beads (no putty)
  • As most sections are pre-glazed, Alton greenhouses are simple to erect and supplied with full instructions
  • Pre-glazed puttyless lights
  • Sturdy guttering and downpipes
  • Free Ten Year Guarantee : Alton will replace any part of the framework if it rots or decays free of charge. Your ten year guarantee is valid even if you do not retreat your greenhouse

All prices listed below include delivery to anywhere in mainland England, Scotland and Wales (except postcodes AB,DD,IV,KW,PH & TR where a £50 charge is made). Any accessories ordered at the same time as your greenhouse will also be delivered free of charge.

If you do not wish to erect your greenhouse yourself, Garasheds will be pleased to provide you with a quote for assembly in the Greater York area, or, if you are further afield, we would be pleased to put you in touch with a local service.

Please note that Alton special offers change regularly, and while every attempt is made to display up to date price information on this site, it is always not possible to do so. Please refer to the "offer ends" information in the full price list, and contact Garasheds if you require any further clarification.

Amateur range

Amateur free standing greenhouse
Amateur free standing greenhouse
The greenhouse range designed for cropping right the way through the winter months.
  • Full length panels and sloping sides to make use of low-angled winter sun
  • Economical to heat as Red Cedar is an effective thermal insulator
  • Ventaccess sliding ventilators fitted to alternate bays, providing natural air movement in conjunction with roof vents
  • Wide sliding door and kerbless threshhold
  • Available in two widths and several lengths
  • Eaves height is 5'5" for all models
  • Guttering and down pipes provided as standard
  • Longer models available on request, and extension models may be added at a later date
Amateur free standing greenhouse Main photograph shows 10' x 13' model.

Alton's instant-fit Cedar cladding panels can be clipped over the outside of the glass so that greenhouse can be modified to suit different crops (see bottom right picture)

Price: from £2,144 for the standard 8' x 8' package (save £919 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.
Alton Amateur lean-to greenhouse
Amateur lean-to greenhouse
Specifications as for free-standing model shown above.

Optional extras for all Amateur models:
  • Louvre side vent(s)
  • Concrete base kerbs
  • Instant fit cladding
  • Extension modules
  • Staging and shelving
  • Automatic roof and louvre vent openers
Model photographed is 18' long.

Price: from £1,708 for the standard 7' x 8' package (save £732 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.

Traditional range

Alton Traditional free-standing greenhouse
Traditional free-standing greenhouse
With parallel sides that don't restrict the growing space at high level, ideally suited to the addition of high-level shelving, the Cedar Traditional model provides the maximum growing space in the smallest amount of ground space.
  • 6'5" wide and available in various lengths
  • Eaves height: 5'4"
  • Full length glazing
  • Ventaccess sliding ventilators fitted to alternate bays, providing natural air movement in conjunction with roof vents
  • Wide sliding door and kerbless threshhold
  • Guttering and down pipes provided as standard
  • Longer models available on request, and extension models may be added at a later date
  • Optional extras: as for Amateur model above
Traditional free standing greenhouse Main photograph shows 6'5 x 8' model

Price: from £1,848 for standard package in size shown (save £792 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.
Alton Traditional lean-to greenhouse
Traditional lean-to greenhouse
Specifications as for free-standing model shown above.

Optional extras for all Traditional models:
  • Louvre side vent(s)
  • Concrete base kerbs
  • Instant fit cladding
  • Extension modules
  • Automatic roof and louvre vent openers
Specifications:
  • Eaves height is 5'4" for all models
  • Maximum internal clearance at ridge is 7'4" from ground level (assuming concrete base kerbs are used)
  • Flashing betwen the wall and lean-to greenhouse is not supplied
Main photograph shows model 5'x 10'6

Price: from £1,719 for standard package in size shown (save £737 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.
Popular greenhouse
Popular Greenhouse
The Alton Popular greenhouse is a single size traditionally designed 6'4" x 8' greenhouse, made from the same high quality Western Red Cedar as the other models in the Alton range. The most competitively priced of Alton's range, it nevertheless shares many of the standard features, such as a roof vent, full length glass panels and a preservative treatment.
  • Price includes concrete base kerbs
  • Easy assembly: large sections bolt together through pre-drilled holes
  • Sliding door, with kerbless threshold
  • Eaves height: 5'4"
Optional extras:
  • 4mm toughened glass
  • Louvre side vent(s)
  • Staging and shelving
  • Automatic roof and louvre vent openers
  • Guttering and down pipe
Please note that it is not possible to 'instant clad' or extend the Popular greenhouse at a later date.
Main photograph shows model 6'4" x 8'0"

Price: from £1,182 for standard package in size shown (save £507 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.

Octagonal greenhouses

The Alton octagonal is available in four sizes (6 x 6, 6 x 8'6, 8'6 x 8'6 and 8'6 x 11) and is designed for erecting on concrete base kerbs. A variety of interior staging and shelving formats can be achieved using Alton's specially designed system. A "glass to ground" option is now available for this range (picture not yet available).

Alton Octagonal greenhouse
Octagonal greenhouse 6x6
Specially designed to provide a very attractive alternative to the traditional shaped greenhouse, its elegant shape makes it ideal for all types and sizes of garden.

Specifications:
  • Ridge height 7'10, eaves height 6'2"
  • Single side opening window as standard
  • Partially clad sides provide a warmer environment for plants during winter
  • Secluded under-staging area is ideal for pot and tray storage, 'forcing' crops and growing shade loving plants such as ferns
  • 4mm toughened glass
Main photograph shows model 6'x 6'

Price: from £1,738 for standard package in size shown (save £745 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.
Alton Octagonal greenhouse
Octagonal greenhouse 6 x 8'6
Specially designed to provide a very attractive alternative to the traditional shaped greenhouse, it's elegant shape makes it ideal for all types and sizes of garden.

Specifications:
  • Ridge height 7'10, eaves height 6'2"
  • Two side opening windows plus a roof vent operated by an automatic opener
  • Partially clad sides provide a warmer environment for plants during winter
  • Secluded under-staging area is ideal for pot and tray storage, 'forcing' crops and growing shade loving plants such as ferns
  • 4mm toughened glass
Main photograph shows model 6'x 8'6

Price: from £2,017 for standard package in size shown (save £865 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.
Alton Octagonal greenhouse
Octagonal greenhouse 8'6 x 8'6
and 8'6 x 11
An elegant and well proportioned building which will enhance the appearance of any large garden, and is well equipped to function as a working greenhouse. With full staging and high level shelving, the 8x11 gives ample growing space.

Specifications:
  • Ridge height 9'4, eaves height 6'2"
  • Special, distinctively designed 'lantern' roof with automated vents
  • Manually operated vents in side windows, plus two low level louvre vents (automatic opening optional)
  • Partially clad sides provide a warmer environment for plants during winter
  • Secluded under-staging area is ideal for pot and tray storage, 'forcing' crops and growing shade loving plants such as ferns
  • 4mm toughened glass
Main photograph shows model 8'6 x 11'

Price: from £3,488 for standard package in size shown (save £1,495 on RRP!) |  Full price list.

Please contact Garasheds for full list of prices, sizes and options.

Victorian greenhouses

Few would argue with the fact that the Victorians knew a thing or two about elegance. The new cedar greenhouse from Alton is a celebration of classic Victorian style. Manufactured, delivered and installed by skilled craftsmen, an Alton Victorian can transform your leisure time and become a focal point of your garden.

The high 45 degree roof pitch and the tall narrow panes provide distinctive style. Extra height in conjunction with good ventilation provided by climate controlled automatic roof vents ensures more air is circulating - a must for healthier plants and more produce.

Alton Victorian greenhouse
Victorian greenhouses
The Alton Victorian is crafted using only the highest quality Western Red Cedar from sustainable sources. The cedar is then treated with either a natural golden honey preservative, or coated in a special white or green paint to look superb in any garden setting.
  • Available in three widths: 6' 5", 7'7" and 10'
  • Choice of seven lengths from 5' 4" to 20' 5"
  • For larger sizes please contact us
  • Available with glass to ground and dwarf wall options
  • Toughened safety glass conforming to BS6206 - class A is standard
  • 10 year framework guarantee
Victorian greenhouses
Price: from £2,735 for 6'5 x 5'4 model in Natural Finish (Golden Honey preservative) |  Full price list.

Contact Garasheds for further information.

Essential accessories



  • Roof Vents
  • Shading
  • Side Louvre Vents
  • Partition
  • Side Vent
  • Kerbs


Siting / Base:

The most convenient position for your greenhouse is normally as near to your house as possible without falling within its shadow. Avoid siting near trees, in the shadow of buildings, walls etc., or in extremely exposed positions. Ideally, you should site a free-standing greenhouse with its ridge running from east to west as this gives better light penetration in the winter when the sun is low in the sky. A lean-to greenhouse should ideally be sited against a south-facing wall.

Alton greenhouses are designed for erecting on purpose-designed concrete base kerbs. They are easy to install and have integral anchorage points for securely bolting down the greenhouse frame. These base kerbs are more economical and far more convenient than building a brick plinth. The site for the greenhouse should be perfectly flat and level and it is essential that the ground is well compacted to support the weight of the building. If the ground is soft or loose it is important to lay a perimeter concrete foundation onto which the base kerb can be positioned.

Garasheds will provide you with the Base Kerb Dimension sheet when you place your order and offer a base laying service in the Greater York area. For other areas, we will be happy to put you in contact with a local base laying service.




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