Lean-to conservatories

uPVC lean to conservatory system

Invest in a versatile Lean-to conservatory from Astraseal

One of the most popular conservatory styles, Lean-to conservatories have consistently been a best-seller in the industry thanks to their incredible versatility. Suited to both traditional and heritage domestic properties, the high amount of glazing used in the conservatory maximises natural light transmission resulting in a brighter home.

A great value, incredibly popular style of conservatory

A great value addition to any installer’s range, Lean-to conservatories are incredibly cost-effective and offer the potential of good margins. Capable of accommodating 4mm double glazing or 44mm triple glazing, and of achieving U values as low as 0.8W/m2K, Lean-to conservatories from Astraseal are also incredibly energy efficient making them suited to the demands of most domestic projects.

In addition, all of the conservatories in our range are available with specialist Pilkington glazing, including self-cleaning glass to reduce homeowner maintenance, and solar control glass to further balance the temperature of the structure.

A PVCu lean-to conservatory systemEnhanced natural light transmission

Thanks to its wide surface area of glazing, Lean-to conservatories offer exceptional natural light transmission. Letting much more natural light into a home than other conservatory designs, the Lean-to conservatory can help to completely transform the dynamics of a space. It’s easy to see then why Lean-to conservatories are also known as ‘Sun Lounges’ and ‘Garden Rooms’.

Expansive range of colours and woodgrain foils available

With a huge range of over 150 RAL colours to choose from, including popular heritage shades such as Chartwell Green, French Grey and Duck Egg Blue, Astraseal Lean-to conservatories can be easily customised to fit most installations. There’s also a variety of traditional woodgrain foils to choose from, allowing you to maximise the heritage aesthetics of your Lean-to conservatory.

Rehau Total 70 Lean-to conservatories

  • High performance, multi-chambered uPVC profile for exceptional thermal retention and acoustic insulation
  • Can easily incorporate 4mm double glazing or 44mm triple glazing
  • Profile contains a unique compound providing a smooth gloss finish that improves aesthetics and reduces maintenance
  • Incredibly energy efficient: capable of achieving U Values as low as 0.8W/m2K
  • Option of larger reinforcement chambers for added strength and durability
  • Available in popular heritage colours such as Chartwell Green, Brilliant Blue and Claret Red
  • Simple design makes it easy to fit custom roofs, including the Global Conservatory roof system
  • Over 125 other RAL colours to choose from thanks to the innovative REHAU Acryl II colour coating system
  • Versatile range of woodgrain laminate foils to choose from, including Rosewood, Mahogany and Golden Oak

Synseal Global Lean-to conservatories


Easier and quicker to install, Lean-to conservatories from the Synseal Global range are perfect for installers who want to speed up their installations.

    • Supplied fully fabricated for a quicker, more efficient installations
    • Concealed gaskets for added aesthetics
    • All parts injected moulded for enhanced quality
    • Ground up design for added ease of installation