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Glass Room: An Extra Room for Your Home
Our speciality: thermal break enclosures

Glass Room: An Extra Room for Your Home

A thermally broken glass room or conservatory that turns your terrace or garden into a living space you can enjoy all year round. No condensation, an insulated roof and quiet even in heavy rain. Marbella, the Costa del Sol and Granada.

By Tecnisun C.B. · Last updated: October 2026

Summary

A thermally broken glass room or conservatory turns your terrace, penthouse or garden into an extra room you can use all year: no condensation, a quiet insulated 50-80 mm panel roof and comfort like the rest of the house. Technical survey, drawings and dry assembly, with the manager on every job. Building conservatories since 1999. Marbella, the Costa del Sol and Granada. Free online quote.

Glass rooms and conservatories in Marbella, the Costa del Sol and Granada

A well-built glass room is not a covered terrace: it is another room of the house. A winter lounge, a dining room with a view, a bright study or a nursery, used in January just as much as in June.

We have been building conservatories since 1999, when we started out in France, where the véranda is part of the home. Since 2011 we have brought that experience to Andalusia, and glass enclosures are now our speciality.

What makes the difference is the profile. We use thermally broken aluminium: an insulating strip separates the inside face of the frame from the outside one, so the aluminium does not carry the cold or the heat through. There is no thermal shock, the frames do not condense or 'sweat', and the room holds its warmth in winter and its coolness in summer, just like the rest of your home.

The roof is the other half of the comfort. We use insulated sandwich panels, usually 50 to 80 mm thick, which keep out the sun and the cold and stay quiet when it rains, nothing like the drumming of a metal sheet or polycarbonate roof. We combine it with insulated glazing and INSTALLUX and STRUGAL profiles.

An extra room, comfortable all year round
Thermally broken profiles: no condensation, no 'sweating' frames
Insulated 50-80 mm panel roof, quiet in the rain
Technical survey, drawings and the manager on site for every job

From technical survey to the last seal: how a glass room is built

A glass room is a lightweight structure assembled dry, but each one starts with a technical survey. On penthouses and terraces we check for possible water leaks, the load the slab will carry and the base it will sit on. In a garden, a concrete footing and a steel frame are prepared where needed, with drawings and a schedule. As for permits, we advise you on the procedure your particular case requires.

One of the projects we are proudest of is a nursery built on a terrace: wall, insulated roof and thermally broken glazing, heated and cooled like any other bedroom in the house. The manager is on site for every job, leading a team of professional fitters and personally taking care of the finishing touches.

The comfort of a room, the light of a terrace

Why a thermally broken glass room?

🏠

An Extra Room

A winter lounge, dining room, study or bedroom: a space you use twelve months a year.

💧

No Condensation

The thermal break separates inside and outside: no thermal shock and no 'sweating' frames in winter.

🌧️

Insulated, Quiet Roof

Insulated sandwich panel, usually 50 to 80 mm: protects from sun and cold and dampens the sound of rain.

🌡️

Energy and Acoustic Efficiency

Insulated glazing and thermally broken profiles: the room performs like the rest of the house.

📐

Technical Survey and Drawings

We check for leaks, load and base before proposing anything. In gardens, a concrete footing and steel frame where needed.

🔩

Lightweight, Dry Assembly

A lightweight structure assembled with no wet trades, using INSTALLUX and STRUGAL profiles.

👷

The Manager on Every Job

He leads the assembly with a team of professional fitters and personally handles every finishing detail.

Comparison: thermal break glass room vs standard enclosure
Glass room (thermal break)Standard enclosure
ProfileAluminium with thermal breakAluminium without thermal break
UseAn extra room, comfortable all yearCovering an area: utility space, large terrace, porch
ComfortPerforms like the rest of the house: no condensationDoes not aim to match the indoor temperature
RoofInsulated sandwich panel (usually 50-80 mm), quiet in the rainDepending on the case
ExamplesNursery on a terrace, winter lounge, kitchen opening onto the gardenUtility areas, drying spaces, porches
Technical survey, drawings and dry assembly

How we build your glass room

1
Asesoría técnica personalizada

Free Online Quote

Tell us how you want to use the space and send photos and approximate measurements. No obligation.

2
Toma de medidas a domicilio

Technical Survey

Leaks, load and base. A technical home visit has a cost, which we tell you before booking it.

3
Fabricación en nuestro taller

Drawings and Planning

We design the glass room with you: dimensions, openings, roof, glazing and finishes, with a schedule.

4
Instalación profesional en obra

Base and Dry Assembly

Where needed, the base or footing is prepared; then the lightweight structure is assembled dry.

5
Resultado final del proyecto

Finishing and Handover

Sealing, cleaning, adjustments and final regulation, with the manager on site. We review the result with you.

Request your glass room quote

Answer a few quick questions about your space and we will prepare a tailored quote. No prices on the spot: every project is measured and quoted individually.

Start my quote

Free, no-obligation online quote. A technical home visit has a cost, which we will tell you before arranging it.

Comfort, structure and permits

Glass room and conservatory FAQs

What is a glass room?

A glass room, also called a conservatory (véranda in French), is a glazed, roofed enclosure that turns a terrace, a penthouse or part of the garden into an extra room of the house. What sets it apart from a simple enclosure is that it is designed to be lived in all year: thermally broken profiles, insulated glazing and an insulated roof.

What is a thermal break and why does it matter?

Aluminium conducts temperature very well. In a thermally broken profile, an insulating strip separates the inside face from the outside one, so the cold or heat outside does not travel through the frame.

There is no thermal shock, the frames do not condense in winter and the room keeps its temperature like the rest of the house. For a glass room you will live in, it is essential.

How does a glass room differ from a standard terrace enclosure?

A standard enclosure uses aluminium profiles without a thermal break. It protects from wind, rain and dust and is a good way to cover a utility area, a porch or a large terrace, but it does not aim to match the indoor temperature.

A glass room does: with insulated profiles, insulated glazing and an insulated roof, it behaves like another room of the house.

Is the roof noisy when it rains?

No. Our glass room roofs are insulated sandwich panels, usually 50 to 80 mm thick, which dampen the sound of rain, nothing like the drumming of metal sheet or polycarbonate.

They also keep out the summer sun and the winter cold.

Can you build one on a penthouse or apartment terrace?

Often, yes, but always after a technical survey. We check for possible water leaks, the load the slab will carry and the base for the enclosure.

If the building has a community of owners, their approval is needed too. With that information we tell you clearly what can be done and how.

And in the garden?

Yes. In a garden, a concrete footing and a steel frame are prepared where needed, and the glass room is assembled on top, with drawings and a schedule.

It is a way to gain a new room open to the greenery and usable in any weather.

Do I need planning permission?

A glass room is a lightweight structure assembled dry, but what each town hall requires depends on the municipality and the specific case. We advise you on the procedure your case requires and provide the project's technical documentation.

Who carries out the work?

Tecnisun is a two-person family business. The manager is involved in the study of every project and is on site for every job, leading the assembly with a team of professional fitters we work with regularly and personally taking care of the finishing touches.

How much does a glass room cost?

Every glass room is a made-to-measure project: size, base, roof, openings, glazing and finishes change the result completely, so we do not publish indicative prices. We prepare a tailored quote: the online quote is free and without obligation with your photos and measurements, and a technical home visit has a cost, which we tell you before booking it.

Showroom Tecnisun
Presupuesto gratuito

Request your glass room quote

Tell us how you want to use the space and send photos and measurements. Free, no-obligation online quote; a technical home visit has a cost, which we tell you before booking it.