Glass Curtains for Terraces: Is the Investment Worth It?

Introduction: what are glass curtains?

Glass curtains are frameless glazing systems that allow you to enclose terraces, porches and balconies while maintaining 100% visibility. Unlike traditional aluminium or PVC enclosures, glass curtains use 8 or 10 mm tempered glass panels that fold like a concertina and stack to one side, leaving your terrace completely open when you want to enjoy the outdoors.

At Tecnisun C.B. we install glass curtains on residential and hospitality terraces in Granada, Malaga, the Costa Tropical (Motril, Almuñécar, Salobreña) and the Costa del Sol (Nerja, Torrox, Vélez-Málaga). Every installation is made to measure and adapted to the specific climate conditions of each area.

Advantages of glass curtains over traditional enclosures

Glass curtains offer benefits that conventional aluminium or PVC enclosures cannot match:

• Total visibility: with no intermediate vertical profiles, the view is panoramic and uninterrupted. Ideal for terraces with sea views (Costa del Sol, Nerja, Almuñécar) or views of the Alhambra in Granada.
• Full opening: panels fold and stack to one side, leaving almost the entire opening free. Your terrace goes from enclosed to open in seconds.
• Wind protection: resistance to winds of up to 100-120 km/h depending on configuration (tested per UNE-EN 12211). On the Malaga coast, where the levante wind can be intense, this protection is vital.
• No building work: installed with mechanical fixings to the ceiling (or beam) and floor, with no need for masonry, plastering or painting.
• Partial acoustic insulation: although not airtight like a framed enclosure, they reduce external noise by 15-25 dB, enough to muffle urban traffic.
• Respect for the facade: with no vertical profiles, they barely alter the building's exterior appearance, something many communities value.

Glass curtains vs enclosures: full comparison

To help you decide, we compare glass curtains with the traditional aluminium and PVC enclosures we also install at Tecnisun:

What shapes the quote for a glass curtain?

We do not work with fixed prices per square metre, because every terrace is different. These are the factors that weigh most on the quote:

For hospitality terraces in Granada and Malaga, each town council's terrace bylaws also come into play. Tell us about your project in the quote form and we will prepare a personalised proposal.

Installation in coastal areas: Motril, Almuñécar, Nerja, Salobreña

Terraces on the Granada and Malaga coast have specific requirements we know well from over 25 years in the trade:

• Salt air: hardware and tracks must be AISI 316 stainless steel (marine grade) to resist salt corrosion. Standard galvanised steel models soon deteriorate on the seafront.
• Levante wind: in Nerja, Almuñécar and Motril, the levante wind can be very strong. We reinforce fixings and use 10 mm glass on exposed installations.
• Solar radiation: on the Costa Tropical, direct solar radiation on glass can raise the interior terrace temperature above comfort levels. We recommend solar-control glass (a selective coating that lets light through but reflects much of the heat).
• Coastal regulations: some installations near the maritime-terrestrial public domain may require authorisation. We advise you on the paperwork your particular case needs.

Glass curtain maintenance

Maintenance is simple and infrequent:

• Glass cleaning: water and neutral soap on a regular basis. In coastal areas, more often to remove salt.
• Track lubrication: apply silicone spray on the top and bottom tracks from time to time.
• Hardware check: periodically tighten screws and inspect the bearings.
• Seals and brushes: replace them when they show wear from use and sun.

Frequently asked questions about glass curtains

Are glass curtains safe with children and pets?

Yes. 8-10 mm tempered glass is safety glass: if it breaks (which is very unlikely), it shatters into small blunt fragments with no sharp edges, like car glass. Additionally, the curtains have a bottom locking system that prevents accidental opening.

Do they protect against rain?

They protect against vertical rain and lateral wind. However, as they are not airtight (there is a small gap between panels), very heavy oblique rain may allow some water in. For total rain protection, we recommend an airtight enclosure.

Do they require planning permission?

It depends on the municipality and the building. In many cases a prior notice or responsible declaration is enough, but not always, and in buildings with a community of owners it is wise to check the statutes and get their agreement. We advise you on the paperwork for your case before work begins.

Is the quote free?

Yes: the online quote is free and without obligation, based on your measurements and photos. The on-site technical visit has a cost, which we tell you before arranging it.