If you want to bring more natural light into your home and enjoy a sun-filled space, a bespoke glass lean to extension can help you make the most of your property and elevate the appearance of your home.

All our lean to roofs are specifically designed, engineered, and manufactured in our own state-of-the-art facility to provide the perfect solution for every living space.


Our glass roofs can sit on an RSJ installed by a third party or on our bespoke steel portal frames. The returns can be made up of brick to match the rest of the property, or by Express products to allow for maximum light. We’ll colour-match our glass lean to roofs to match your Express doors and windows, creating a cohesive look across your home.

With large glass expanses and a modern architectural aesthetic, we can also take down your existing, outdated conservatory and replace it with a contemporary new lean to glass roof extension to make your dream home a stunning reality.

Completely bespoke so we’ll offer the best advice to find a solution that works for you

We can take down existing conservatories and replace with our products

We’ll work closely alongside your builders or contractors

Perfect within inset tiled roofs, glass-links, side lightwells, glass extensions and conservatories


  • Express structural steel portal frames can be used instead of the builder preparing all structural steels. Contact our sales team for more technical section for information on our portal frames
  • Aluminium gutters can have a bespoke design to suit individual tastes.
  • Shaped glazed windows can be installed underneath and to the pitch of the roof to allow more light into the glazed structure.
  • The returns can be built from either the house walls or any of our glazed products.
  • Bespoke aluminium pressings can be used to cosmetically finish off the installation.
  • Reverse lean-too roofs possible when combined with a box gutter. A lean-too roof combined with a box gutter is an ideal solution for mid-terraced properties as a means of creating a lightwell down the side of the property.
  • 10-year guarantee.
colour choices for the front door


Our three ranges offer some stunning popular colours, but we also offer the option of over 200 RAL colours, allowing you to pick the exact colour to suit your home.

And, because they’re powder-coated, durability is never an issue. The colour is baked-on, providing a lasting finish that won’t peel off or lose its colour – and is guaranteed for ten years.


Our glass lean to roofing system is designed with security in mind. Toughened glass is offered as standard, and it is rigorously tested for the most severe weather conditions. We also include a scaffold tower in every supply and fit quotation.

Our dedication to quality engineering means that we offer a 10-year guarantee on all our lean to glass roofs.

Certass CQ Assured Scheme

We are members of the Certass Certified Quality Assured scheme, which is a quality-assurance scheme for reputable and trustworthy companies designed to give consumers additional confidence when working with companies for their renovation, maintenance and improvement projects.

The Certass CQ scheme isn’t a building regulations document, but offers peace of mind for the customer that their works have been installed correctly and to the relevant industry standards. As part of the scheme, our installations are independently audited by Certass every month, and a certificate of conformity is sent to our customers upon the completion of our works. The CQ scheme includes a 10-year insurance-backed guarantee and a 120-day deposit protection policy.

If you would like your installation to be included in the CQ scheme and receive a personalised certificate of workmanship quality, please ask your sales rep.


Our replacement installations in England and Wales are backed by the Certass Competent Person Scheme. After the completion of our work, our customers receive a personalised Certass-branded building regulations certificate reaffirming that the works have been completed to the relevant industry standards.

Also included is a 10-year insurance-backed guarantee to sit alongside our own comprehensive guarantee:

  • The certification includes works where the removal and reinstallation of windows and doors are completed and installed by Express.
  • The scheme covers replacement installations but does not include extensions and new-build projects.
  • The scheme covers our replacement works across England and Wales.


  •  Various pitches from 5–45 degrees.
  • Maximum projection of: 3865mm – 10 degree pitch and 3685mm – 20 degree pitch
  • Skyline Lean To is required when a pitch is greater than 31° and a projection typically greater than 2800mm *subject to glass size.
  • Elite and Essence colours available with the Sky-line Lean To only.
  • Aluminium glazing bar top cappings.
  • Aluminium ridge body.
  • Aluminium cast ridge end, integral brush and weathering flashing.
  • BBA tested and approved.
  • Integrated wall plate ventilation system for airflow.
  • Full range of RAL colours.
  • Bespoke, insulated aluminium pressings are used to cloak off visible structural supports. These can be priced for during the design & quotation stage or after the installation.
  • Designed to fit seamlessly alongside our entire product range.
  • Designed for increased loads so you don’t have to compromise on design.
  • Full guttering, downpipe and associated fixings are wholly manufactured from aluminium. This improves aesthetics, strength and robustness, and these components massively increase the weather rating and life span of the entire roofing system.
  • The unique single point fixing bolts are fastened internally for easier and quicker installation. The main aluminium rafters are not penetrated so there are no fixing holes for water to ingress through.
  • The starter bar is designed to leave a perfect lead flashing line seamlessly connecting the house and the roof, and is made from highest grade aluminium to ensure it doesn’t warp or distort.
  • Concealed internal gaskets.

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