Glass verandas, from the first idea to the finished patio

How one is put together

A wall bar is fixed along the house, taking a large share of the load. Posts stand on prepared bases and carry a front beam, which usually doubles as the gutter. Glazing bars span between the two, the glass sits on gaskets and is clamped down, and water runs to a downpipe hidden in a post. Because it is aluminium, the whole thing is light for its strength and does not rot, rust or need painting.

Frame choices that change the look

Profile depth is dictated by span, so a wide clear opening needs a deeper beam whatever the brochure photo shows. Colour is powder coated and stable, with anthracite grey and black most common on modern houses and white or cream more sympathetic on older ones. Post spacing has more effect on how the structure reads from the garden than colour does, so look at that before choosing a shade.

The roof glass

Toughened safety glass is the standard. Laminated adds quiet in heavy rain and holds together if broken. Self cleaning coatings cut how often you wash it, and solar control glass tackles heat on a south facing wall. Choose for whichever of glare, noise, heat or cleaning access bothers you most, rather than buying every option.

Toughened

clear, the sensible baseline

Laminated

quieter and safer overhead

Self cleaning

fewer cleans on an exposed slope

Solar control

cooler under a south facing roof

Sizes and how far a veranda can span

Depths of two to four metres cover most domestic use, with three metres the point at which a dining table works comfortably. Width is set by the wall and by how many posts you accept. Bigger clear spans are possible and cost more, because the beam has to grow to carry them without visible deflection.

Extras worth thinking about at the start

Integrated LED lighting, infrared heating, zip screens and fixed side glass all fit best when the frame is specified for them. Even if you buy none of them today, having cabling run and fixings prepared during installation costs very little and saves a great deal later.

Ask for the drainage route to be written into the quotation. It is the detail most often left vague and the one that causes most problems.

Living with one

Wash the glass twice a year, clear the gutter in autumn, and that is essentially it. There is no painting, no sealing and no annual treatment. Structural frames are covered up to 10 years, with glass and electrical components under their manufacturer terms.

Is a glass veranda right for your house?

It suits a rear elevation with sound wall to fix into, a patio in reasonable condition and a household that wants to be outside more of the year. It suits less well a north facing room where every scrap of daylight counts, or a household whose only complaint is midsummer heat, where an awning is cheaper and more appropriate.