Lean-To Conservatories

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‘A’ rated energy efficient

Our  windows are ‘A+’ rated on the energy efficiency chart, helping to lower your gas & electricity bills throughout the year


Our range of products are fully customisable

noise reduction technology

Sound proofed to keep outdoor noise levels to a minimum

Reducing Your Carbon Footprint

Our products are ‘A’ rated on the energy efficiency chart, helping to lower your gas & electricity bills throughout the year, as well as reducing your carbon footprint

UV Resistant

Maximum UV Protection Without the Tint. Clear appearance. Scratch resistant.

Made in britain

All of our windows are manufactured to your requirements in our own manufacturing centre based in the Midlands

10 year guarantee

We have installed over half a million windows throughout the Midlands with in the region of £130 million worth of installations covered by our 10 year guarantee

About this product

A lean-to is perhaps the simple of all the conservatory designs, which makes it the most affordable variety, but also one that suits a wide range of properties, from modern designs to traditional houses and country cottages.  The basic idea it to build a rectangular glass box onto the side or end of your house, with the longer side attached to the property.  Compared to other designs, this one typically allows the maximum amount of sunlight to enter. A lean-to is ideal for homes with limited space – you can have it as large as you want, even extending along the entire rear of the house. With its clean and understated lines it has traditionally been a popular choice among homeowners who prefer contemporary, minimalist designs.

A standard lean to will have dwarf walls with glazing on all three sides, as well as a glazed roof. The height of lean tos is generally lower than other conservatory types that have apex roof designs, and so they are an excellent choice for those adding to a bungalow or other low-lying structure

Often used as a greenhouse or a sunroom, as well as for other common purposes, a lean-to conservatory is one of the most practical and accessible. Recognised all over the world, the lean to is perhaps most associated with the Mediterranean region, where they are popular because their versatility and ability to maximise the available natural light.

Thanks to their simple structure and straightforward design, the cost of a lean to conservatory is often less than for other types, which doesn’t mean that they don’t have just as much potential as their more expensive cousins. The beauty of a lean to conservatory is that it can be anything you want it to be, and it doesn’t take as much money or time to construct as other kinds of conservatory or orangeries. 

Lean-to conservatories designs

There are many variables in lean-to design, and this flexibility is part of what makes them such a popular choice with homeowners. The three parts of a lean-to that have the most versatility in terms of design style are the base, the roof and the ventilation.

The options for the base of a lean-to include dwarf walls, typically about 60 centimetres high or full height glass panels. Another possibility is to have raised uPVC panels at the foot of the conservatory.

With regards to the roof, it is possible to have a glass roof, or one made of polycarbonate. Glass will let in more light, but polycarbonate is cheaper and easier to maintain. Ventilation is an important element in lean to conservatories, and homeowners have a choice between manual or electronically operated roof vents. Most people on a budget will opt for a uPVC frame for their lean to conservatory, but timber designs are also available.

Amber Windows offers a range of finishes and colours. All brickwork is insulated and all windows are double glazed with our ‘A’ rated windows to ensure your new conservatory is warm and cosy all year round.

All of Amber’s conservatories are bespoke design and built according to your exact specifications allowing you to create the perfect additional living space or entertainment room.


  • Energy efficient helping to reduce heating bills
  • Built in security
  • Reinforced inner frame
  • High security multi point locking mechanism
  • Shoot bolts engaged into the outer frame
  • Dual colour option available
  • Argon gas filled triple sealed units
  • Unique Amber Windows "Amb-e-seal"® Windows
  • 0% heat leakage around opening vents
  • Unique combination with steel & thermal reinforced frame
  • Retains 99% of it's shape after years of use
  • Weather proofed UPVC to ensure the frames do not discolour
  • Sound proofed to keep outdoor noise levels to a minimum
  • Internally beaded for security
  • Stylish & carefully designed
  • Amb-e-seal"® a unique market leading technology providing high levels of energy efficiency to ensure windows are draught free and retain the warmth within your home
  • Amb-e-therm® sealed units benefit from reduced noise, condensation and retains more heat in the room
  • Unique combination Steel & Thermal reinforced
  • Outer frames are thermally enhanced
  • British Standards Kitemark™ Licensed

Quality Assured

10 year guarantee

Fast finance payment plan

Free home design service

100% customer satisfaction

All Conservatories Certified By

Secured By Design

Made in Britain

Citation PLC

BS 7412 Windows & Doors

BS 7412 Windows

ISO 9000

ISO 14001

The Fenestration Self-Assessment Scheme (FENSA)

The Guild of Master Craftsmen

Quality Assured National Warranties