Guadeloupe · Martinique · Saint-Martin
Aluminium decking, pergolas and railings for the Caribbean
GT MAT designs and installs high-end aluminium outdoor living from our two workshops in Guadeloupe and Martinique. Materials chosen for salt spray, heavy rain and tropical sun — and a team that works in English.
Request a free quoteWhat we build
Three specialities, one material
Aluminium decking
Powder-coated aluminium boards with a timber look. They do not rust and cannot rot, and come in light Qualicoat shades that limit heat build-up. From 450 to 550 € per m², installed.
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Bioclimatic pergolas
Adjustable aluminium louvres you control from shade to full sun, then close against the rain. Classic and Premium ranges, wind-certified.
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Aluminium railings
Five models, from the clean lines of CLARIS to the integrated LED lighting of NOCTIS. Compliant with French safety standard NF P01-012.
Learn moreWhy aluminium
Built for salt spray, sun and cyclone season
In the Caribbean, an outdoor structure faces three enemies at once: salt-laden air, relentless UV and torrential rain. Timber decking swells, splinters and greys. Untreated steel corrodes. Aluminium behaves differently — it does not rust, and it cannot rot.
- Aluminium does not rust and is rot-proof — no annual sanding, no oiling, no rot treatment
- Qualicoat-certified powder coating, the reference standard for architectural aluminium finishes
- Stainless steel fixings throughout, so the weakest point of the assembly is not a corroding screw
- Boards and louvres made to measure in our workshops in Saint-François and Les Trois-Îlets
- Ten-year structural warranty (garantie décennale) on installations in the French West Indies
Maintenance comes down to rinsing with clean water. That is the practical difference our clients notice after the first rainy season.
How it works
From first call to finished deck
01
Talk to us
Call, WhatsApp or the online form. Tell us the surface, the location and what you want to do with the space.
02
Free quote in 48 h
A written quote with the exact specification, the price and the lead time. No obligation.
03
Site survey
We measure on site, check the substructure and confirm the technical solution before anything is ordered.
04
Installation
Between 7 and 45 days depending on the project, with the date confirmed on your quote.
Where we work
Two workshops, one archipelago
Our teams operate from two established bases: Bien Désiré, 97118 Saint-François in Guadeloupe and Rue de la Vanille, 97229 Les Trois-Îlets in Martinique. From there we cover both islands in full, and we take on projects in Saint-Martin, Sint Maarten and Saint-Barthélemy — freight and lead times confirmed in writing on your quote.
See all service areasFAQ
Frequently asked questions
Do you work in English?
Yes. Our team handles projects in English and French across the Caribbean, from the first call through to installation. Quotes and technical documents can be issued in English.
How much does an aluminium deck cost?
Between 450 and 550 € per m² including tax, installed, depending on the range and the complexity of the substructure. Every quote is free and issued within 48 hours.
Which islands do you cover?
Guadeloupe and Martinique, where we have our two workshops, plus Saint-Martin, Sint Maarten and Saint-Barthélemy on request. Freight and lead times are confirmed in writing on your quote.
Why aluminium rather than wood in the tropics?
Aluminium does not rust and is rot-proof, so salt spray, humidity and insects do not attack it the way they attack timber. Our profiles carry Qualicoat-certified powder coating and stainless steel fixings.
How long does installation take?
Between 7 and 45 days depending on the scope of the project. The exact lead time is stated on your quote before you commit.
Tell us about your project
Free quote within 48 hours. Site visit across Guadeloupe and Martinique.