Thermal break · CE EN 14351-1 · Warranty Slim profile, thermal break

Aluminium for large openings and slim frames

For homes that call for more glass, modern lines or resistance by the sea. Thermal-break aluminium that truly insulates, made to measure for your project.

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✓ Thermal break, Uw for your zone✓ Slim frames, large openings✓ Holds up to sea air
Living room with floor-to-ceiling slim anthracite aluminium glazing opening onto greenery

One example, already worked out, no contact details

Tilt & turn 120 × 120 cm
Anthracite aluminium · double Low-E glass

Frame and glass 1.44 m²
€220
Fitting and removal of the old one
€150

Turnkey estimate
VAT included €320–410

Adjust to my measurements →

CE · EN 14351-1 · warranty included

CE marking · EN 14351-1 Thermal break, Uw for your zone Our own team, warranty included CortizoTechnalReynaersSapa

First: is this for you?

Aluminium isn’t for every home. It pays off in three situations. Do you recognise yours?

A villa with a pool and terrace

Large lift-and-slide doors that open the living room to the outside and glide with one finger, even with 3 metres of glass.

An apartment with a view

A glazed balcony and a slim frame that doesn’t steal the view of the city or the river. More light, less frame.

A design-led or seafront home

A minimalist anthracite line and the resistance that sea air, wind and strong coastal sun demand.

Contemporary house with an anthracite aluminium facade and swimming pool

Recognised your home? This is what aluminium makes possible

A narrow frame just a few centimetres wide, floor-to-ceiling glass, and doors that slide effortlessly. Where PVC can’t reach in size, aluminium can, with three systems:

  • Lift-and-slide

    The sash lifts as it opens and seals as it closes. For large terrace and garden doors, gliding effortlessly with no gaps.

  • Slim profile

    Just a few centimetres of frame in view. Almost all glass, for anyone who wants the window to disappear into the wall.

  • Tilt-and-turn and casement

    The classic opening for airing and cleaning, with the perimeter seal and branded hardware that make the difference.

Where aluminium makes the difference

Large openings, sliding doors and minimal lines: what aluminium’s narrow, rigid profile makes possible.

Large aluminium sliding doors open to a swimming poolLarge-format sliding doorsSee portfolio →Living room with an aluminium sliding door open to the gardenSliding doors to the outsideSee portfolio →Glazed aluminium facade in late-afternoon lightFacades and large openingsSee portfolio →
See the full portfolio →

Colours and finishes without limits

Powder-coated in any RAL shade, matte, textured or wood-effect, with the colour baked into the coating itself, not painted over the top. That’s why it doesn’t peel or yellow.

Anthracite
Black
White
Grey
Bronze
Wood
Green
Blue
Burgundy
Beige
+ 450 RAL

Classic colours (white, anthracite, grey) are included in the base price. Textured, wood-effect and anodised finishes carry a surcharge, always shown in the quote. The interior and exterior can be different colours.

The age-old question: “isn’t aluminium cold?”

Not any more, with a thermal break. The thermal break splits the frame in two and puts a polyamide insulator in the middle: the cold from outside no longer passes through the frame. With double Low-E glass, modern aluminium comes close to PVC and meets the Uw for your climate zone.

Aluminium without a thermal break, on the other hand, chills the wall and causes condensation. We don’t install it in homes.

  • Polyamide thermal break in the frame
  • Double Low-E, acoustic or triple glazing
  • Uw for your zone (2.80 / 2.40 / 2.20)
  • Perimeter seal and branded hardware
No pushy sales, no pressure

If aluminium isn’t right for you, we’ll say so

We install both materials, so we have no interest in selling you the more expensive one. If your home calls mainly for thermal comfort and a good price, PVC is the smarter buy, and we’ll tell you that. Aluminium comes in when the opening size, the design, or the sea makes it worthwhile.

Compare PVC and aluminium See PVC windows →

Now for it: your aluminium estimate

You’ve seen what aluminium makes possible. Choose the system, the glass and the colour, and see an estimate without giving your contact details. For aluminium, the final price is always confirmed after measurement.

What are you replacing?
Window type
Opening dimensions
cm
cm
Glass
Roller shutter
Frame colour
Quantity

Reference prices in aluminium

Thermally broken aluminium (RPT), double Low-E glazing, fitting and removal of the old frames included.

Window typeTypical sizeInstalled, VAT incl.
Fixed window100×100 cm€240–310
Tilt-and-turn120×120 cm€320–410
Sliding window150×120 cm€410–520
Balcony door90×210 cm€560–710
Sliding door200×210 cm€1,360–1,730

Figures from our calculator — adjust to your measurements. For large openings and premium systems the price is always confirmed after measurement.

From quote to installation, in four steps

1
Clear quote
Tell us the opening size and what you’re after. We give you the price per m² and per opening, all included. Reply within 1 business day, no large deposit.
2
Measurement and structure
We measure every opening and confirm the system and structure. On large sliding doors, this step is what prevents surprises during installation.
3
Made to measure
Frames built with branded profile (Cortizo, Technal, Reynaers, Sapa), thermal break, and the RAL finish you choose. 2-4 weeks (special colours can take longer).
4
Our own installation team
We fit, seal and remove your old frames. On large openings, the quality of the installation is what makes the result last.

Frequently asked questions about aluminium

Old aluminium without a thermal break, yes. What we install has a thermal break: the profile is split in two with a polyamide insulator in the middle, and with double Low-E glass it meets the Uw for your climate zone. We don’t install aluminium without a thermal break in homes.

For most homes, PVC insulates a little better and costs less. Aluminium pays off when you have large openings, a design requirement, or coastal exposure. We’ll tell you honestly which one suits your case.

An entry-level system with a thermal break runs about 30-40% above the equivalent PVC; premium systems with very slim profiles can cost 2-3 times more. That’s the price of slim frames and large openings. We give you the exact price per m² and per opening before you commit.

Yes, with the right surface treatment for a marine environment. It’s one of the reasons to choose aluminium on the Lisbon and Setúbal coast, such as Cascais, Costa da Caparica or Sesimbra.

Powder-coated in any RAL colour, matte anthracite, wood-effect or anodised. The colour is baked into the coating, not painted over the top, so it doesn’t peel. The interior and exterior can be different colours.

Yes, it’s where aluminium shines: large sliding and lift-and-slide doors, with expansive glass and smooth gliding that PVC can’t match structurally.

Large openings, slim frames, a home by the sea?

Tell us the opening size and what you’re after. Reply within 1 business day, no commitment.

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✓ Thermal break✓ CE · EN 14351-1✓ Warranty included