How to Choose a Glazing Contractor in Dubai: 7 Questions to Ask

Why contractor selection matters more than product selection

A Cortizo Cor Vision installed badly is worse than a budget system installed correctly. The gap between a well-executed glazing project and a poorly executed one is almost always the installer — not the product. Yet most homeowners and developers spend 80% of their research time comparing systems and 20% vetting who will actually do the work.

In Dubai's market, this is particularly risky. The premium end of the market is served by authorised, factory-trained installers. Everything below it is a mixed bag. Here are the seven questions that reliably separate the two.

1. Are you an authorised installer for the brands you're selling?

Cortizo, Vetromax, Gulf Extrusions and other serious manufacturers have formal authorised installer networks. Authorised partners receive factory training, technical support, and access to current product data. An unauthorised fabricator may use genuine profiles but lack the training to install them correctly — and the manufacturer's warranty will not apply.

Ask to see the authorisation documentation. A legitimate partner will produce it without hesitation.

2. Can you show me UAE projects you've completed in the last 12 months?

Portfolio images are easy to fabricate or borrow. A credible contractor can give you the name of a recent UAE client you can contact directly, or take you on a site visit. If the contractor cannot name a single verifiable recent project, that absence speaks for itself.

Pay attention to project type and scale. A company that has only done small apartment fit-outs may struggle with a full villa envelope or a curtain wall installation.

3. Who actually performs the installation — your own team or subcontractors?

Many glazing companies in Dubai function as brokers — they sell, design and take your deposit, then hand installation to a subcontractor who has never met you and knows nothing about your expectations. This is a significant quality risk.

Ask explicitly: do your own employed installers carry out the work? What is the qualification and experience level of the on-site team? Will the same project manager who takes your brief be present during installation?

4. What does the warranty actually cover, and for how long?

Glazing warranties in UAE vary enormously. A manufacturer's profile warranty (typically 10–15 years for powder coat, 5–10 years for hardware) is separate from an installer's workmanship warranty. Both matter. The profile can be perfect; an installation defect can still cause water ingress, racking or operational problems within a year.

Ask for the warranty in writing, and read it. Look for exclusions around sand, humidity and thermal cycling — all of which are part of the UAE climate. A robust contractor will cover workmanship for a minimum of two years without exclusions for normal UAE conditions.

5. Do you provide technical drawings and a written specification before contract?

Professional glazing contractors produce technical drawings — shop drawings showing elevations, section details, fixing details and glazing specifications — before fabrication begins. These drawings are what protect you if there is a dispute, and they are what a competent installer signs off against.

If a contractor is willing to proceed to manufacture based on a verbal brief and a sketch, that is a warning sign. The drawings are not optional; they are the contract.

6. Are you registered with Dubai Municipality / the relevant emirate authority?

Commercial and high-rise glazing in the UAE requires the installing contractor to be registered with the relevant municipality. For residential work, the requirement varies but a Dubai Municipality registration is a basic mark of a legitimate business. Ask for the trade licence and registration number, and verify it.

Unregistered contractors are not only a legal risk — they are ineligible to obtain the necessary permits for certain types of work, meaning your project may not receive final inspection sign-off.

7. What happens after installation?

The relationship with a quality glazing contractor does not end at handover. Premium aluminium systems require periodic adjustment, seal inspection and hardware servicing — particularly after the first full year of thermal cycling in the UAE climate. Ask what aftercare support is included and whether the contractor will still answer the phone in two years.

The contractors who can answer all seven questions clearly and confidently are the ones worth hiring. The ones who deflect, generalise or become evasive — at any point — should be disqualified.