Call us: 01634 567500
old conservatory
Replaces Old Conservatories
made to order
Made to Order
High Specification
High Specification


Open up your home with a contemporary lean-to roofing, improving your existing conservatory or as part of a new glazed extension.

We work either directly with you or in partnership with your builder or architect to achieve the perfect end result. Our lean-to roofs are bespoke and integrate perfectly with our contemporary or traditional range of windows and doors to blend in with your home.

Above all, you get a professional installation and a desirable feature in your home creating a light-filled space and a new living space in your home. We use the high quality Roof Maker range of premium aluminium products.

Find out more

Technology & Design

Every single one of our lean-to roofing products comes designed to your requirements, property style and design wishes. Our roof profiles with slim lines enhance your property or existing outside space, or as part of a new glazed extension design.
Insulated aluminium profiles provide thermal benefits within the roof system. Our roofs integrate with our entire range of windows, doors, bifolding doors and sliding systems. The result is a beautiful new glass extension, orangery or conservatory adding style and value to your home.

Our bespoke roofs products also feature all the essentials to keep out the winter weather.  Guttering and downpipes take water away. In the summer, opening vents provide airflow and ventilation. Whatever style you choose comes with full weather sealing and durable powder-coated surface finishes with quality glass units for making the most of the view outside.

Our lantern roof system can also work within an existing structure replacing the old, poorly insulated and inefficient roof.

lean-to roofing in a box glass extension

Product Details

Suitable for improving an existing conservatory or for a new extension. A range of custom-designed lean-to roofs designed to work with our contemporary range of windows and doors. Best of all is their strong but slim construction providing a modern look with light transmission.

  • Infinite design options, letting you create your perfect new glazed extension.
  • Available with all the required extras such as integrated guttering or opening roof vents.
  • Comes in the full range of RAL colours.
  • High quality glass creates a cool in summer, warm in winter environment.
  • Slimline design of the roof bars maximises light and provides minimal aluminium framing.
  • Expertly designed with you and professionally installed by us.

Smart Systems doors and windows in extension with lean-to roofing


First of all comes the durable powder coated surface finish, protecting the aluminium surface and adding a contemporary or traditional colour. A low maintenance finish with only routine cleaning required.

The roof design easily incorporates opening manual or automatic windows. And where the roof meets structural steelwork we can provide shaped and coloured aluminium pressings providing a neat details to the edges of the structure and the roof.

Glass comes as standard in clear safety glass with further options for laminated glass, self-cleaning and solar glass or tinted glass units.

lean-to roofing in a special ral colour

Security & Performance

The aluminium structure of our glass roofs is thermally broken, insulating the aluminium roof bars and helping provide a cool in summer, warm in winter environment.

The powder coating surface comes with a 15-25 year guarantee subject to the colour chosen. As well as this, all glass is securely fixed and comes fully sealed into the roof.

modern conservatory with lean-to roofing

Product Features


Our bespoke roofs are mostly assembled at your property thanks to the engineering and design with quality steel and aluminium components. The roof bars secure with dedicated fixings securing the glass in place and finished off with flat or traditional cappings. Depending on the size our roofs sit within a steel or other structure provided by your builder.

The seals are advanced products designed to keep your lean-to-roof watertight and fully sealed. A selection of other accessories lets us create you a completely bespoke product giving you exactly the look and finish you want in your home. And if you're building a new extension we work closely and professionally with your builders or contractors for a smooth and trouble-free part of your project.

double flat rooflights in sloping roof


With such a substantial amount of glass, we make sure you get the best safety glass units, not only giving you lots of natural daylight but also protecting your home and creating a more comfortable interior.

All our glass is either toughened or laminated as standard and even a combination of toughened glass outside and laminated inside. Glass has a soft-coat low-emissivity coating, warm edge spacer bars and argon gas fill.  You can improve performance and interior comfort with self-cleaning, solar-control, tinted or acoustic glass too.

We believe such a substantial investment in your home deserves the best quality glass to enhance and complement your home and provide you with years of enjoyment.

flat rooflights in a new extension


We only use aluminium in our range of lean-to roofing home improvement products for its slim lines, expansive spans and strength. However, colour is another reason why aluminium provides some of the best lean-to roofs and structure.

The durable powder-coated finish is professionally applied by Quality Assured and certified applicators, providing durable colours that protect your investment and require only routine cleaning with a mild soapy solution.

colours available with Dutemänn FD85 Bifolding Doors

Energy Efficiency

There is no doubt that your new lean-to roofing will enhance your home with functional and beautiful extra rooms. However, they must also be energy efficient.

To ensure you get the very best out of your conservatory our high specification glass comes with low centre-pane U-Values providing you with a warm in winter, cool in summer room. This is why we provide our energy-efficient glass to control the internal temperature better. As a result, you get to enjoy your room every day of the year, where older conservatories are avoided in the winter. There are no U-Values for entire conservatory construction typical with new windows or doors.

opening flat rooflights beside Origin single doors

Some of the images on our website are indicative images illustrating how products may look. Please contact us for full product details and specifications.

COVID-19 Update 5th January 2021