Trebbiano can typically be assembled in just 1–2 days, from £5,699 with free delivery included.

A flat glass roof for low-clearance walls

The Trebbiano solves a problem that stops many veranda projects before they start. A traditional sloped lean-to needs sufficient clearance above the fixing point to shed water properly, and plenty of houses simply do not have it. The flat-roofed design bypasses that constraint completely.

That makes it compatible with bungalows, extensions and any wall where height is tight, using reinforced 8.8mm thermally strengthened glass with LED integrated as standard.

7m max span on 2 posts

Horizontal flat roof, in a modern design

Aluminium Flat Roof Veranda | Deponti Trebbiano | 8.8mm Safety Glass | Spans Up To 7m | Integrated LED | Low-Height Compatible

The Flat-Roof Glass Room
Where windows sit low above the patio doors, the flat profile tucks in beneath them without fouling the sill. It is the answer for bungalows and single-storey extensions that a sloped veranda cannot serve.

Horizontal By Design
Depths run to 4.5m, and systems link together to extend the width as far as the space allows, the flat silhouette gives a crisp contemporary line that suits rendered and modern walls. Overhead safety glass keeps the room behind bright rather than shaded.

Trebbiano from £5699 inc delivery

4m wide x 3m deep veranda, beautifully engineered

Standard sizes
Width – 4m to unlimited
Depth – 3m to 4.5m
Multiple systems can be connected

Best seller sizes and prices

4m x 3m £5699
5m x 3m £6699
6m x 3m £7795
Get a quote today

Our colour collection

RAL 9016 Traffic White RAL 9016
Traffic White
RAL 7024 Graphite Grey RAL 7024
Graphite Grey
RAL 9005 Jet Black RAL 9005
Jet Black

5-Year Warranty *

All of our verandas come with a market leading 5 year warranty for peace of mind.

Dutch Engineering

Engineered in the Netherlands to exacting standards, so every profile, joint and fixing lines up perfectly.

Modular Systems

Combine your veranda with your favourite accessories, paving or decking design for an unrivalled finish.

Discover the Trebbiano

Extra-large 150mm x 150mm square posts, with the downpipe concealed inside for a clean, uncluttered finish.

8.8mm Laminated safety glass roof as standard, available in Clear, Opal,Grey or Bronze to control light and shade.

Modern cubist gutter with hidden drainage and a built-in leaf catcher.

Dimmable LED lighting is built into the gutter as standard, so your veranda works just as well for evening dinners as afternoon shade.

RAL 9016 Traffic White RAL 9016
Traffic White
RAL 7024 Graphite Grey RAL 7024
Graphite Grey
RAL 9005 Jet Black RAL 9005
Jet Black

Choose from three textured powder-coated finishes:

Customise your Trebbiano

Roma Primo frameless glass sliding doors in anthracite on an aluminium veranda

Glass Sliding Doors

Low windows stop being a problem and the patio becomes a room.

Frameless, stacks aside

Aluminium Side Panels

Close the sections you want and leave the rest open to the garden.

Modular click-profile

LED Spotlights

The room works on a dark afternoon, not just in high summer.

Warm-white, dimmable LED

Optional upgrades

Choose how much sun you let in. Clear glass keeps things bright through grey British winters, while solar-control glazing takes the sting out of July afternoons. Both keep the rain off, so the patio stays usable all year.

Frequently Asked Questions

A sloped lean-to needs height at the wall to create its pitch, which many homes don't have beneath their windows. The Trebbiano's flat profile solves that, sitting in low-clearance spots where a pitched roof can't go.

That is exactly what it is designed for. Its low overall height lets it slide in beneath first-floor windows and low eaves without obstructing them, opening up positions where other verandas cannot go.

The roof carries a subtle built-in fall you don't notice, guiding rainwater to the integrated gutter and downpipe. So while it reads as flat, it still drains positively rather than letting water sit.

It uses 8.8mm laminated safety glass, specified for overhead glazing so that it holds together rather than falling clear if it is ever broken. The glazing is a core part of what lets the flat roof stay slim yet strong.

Yes. The frame and glass are specified to carry a snow load for UK conditions, with the drainage sized to clear meltwater. Because the roof is close to flat, we recommend clearing any unusually heavy accumulation rather than leaving it to build up, and we confirm the load figure for your chosen size.

Up to 10-Year Guarantee

Up to 10-Year Guarantee

Built for everyday outdoor living with a lasting warranty.

Delivered Across Mainland UK

Delivered Across Mainland UK

Free delivery throughout England, Wales, and Scotland.

Expert Help, When You Need It

Expert Help, When You Need It

Friendly specialist support before and after your purchase.
Schedule a virtual appointment.

Trebbiano Gallery

Aluminium Flat Roof Veranda | Deponti Trebbiano | 8.8mm Safety Glass | Spans Up To 7m | Integrated LED | Low-Height Compatible

Your Trebbiano, from survey to delivery

  1. 1

    Tell us about your space for the Trebbiano

    Arrange a home or video survey whenever suits. Show us the height under your windows and eaves, and we'll take the measurements your Trebbiano needs, with no obligation.

  2. 2

    Explore your Trebbiano options

    This is where the detail comes together: depths, bay widths, glass tints and colours, all matched to the way you want to use your Trebbiano.

  3. 3

    Confirm your Trebbiano and arrange delivery

    Once you're happy, we confirm your Trebbiano specification and book delivery direct to your door, complete with clear, illustrated assembly instructions.

Book a free survey

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