A landlord in Mirdif hired a contractor to add a floor to his villa. Two weeks into the job a Dubai Municipality inspector asked to see the contractor’s registration. The firm held a trade licence but its licensed activity had nothing to do with building work and it was not on the municipality’s contractor register. The site stopped while the owner searched for a replacement. The first check that would have caught this takes under five minutes.
Construction is one of the most regulated trades in Dubai and the rules got stricter in 2026. A DED check is the fastest first step before you sign with any Dubai construction company or engineering contracting company. That is why firms.ae checks every listing against DED and free-zone registries before it goes live. This guide explains what DED verification covers and what the new law means for you and how to check a firm in minutes and how free zone firms differ.
What Does a DED Check Tell You About a Firm?
It confirms that the firm holds a real and valid trade licence. DED stands for the Department of Economic Development which is now the Department of Economy and Tourism or DET. It issues trade licences for Dubai mainland companies. A check on the official register shows the licence status and the expiry date and the registered trade name and the licensed activities and the registered address. That is the first proof that a Dubai construction company exists and is allowed to trade.
Why Does the Licensed Activity Matter for an Engineering Contracting Company?
Because a valid licence is not enough if it covers the wrong work. The licensed activity must match what you are hiring the firm to do. For building work an engineering contracting company also needs to be registered with Dubai Municipality. Under Dubai Law No. 7 of 2025 the municipality keeps a central contractor register and runs a classification system by specialisation.
Building contractors in Dubai can only work inside their classification and a firm licensed for the first time starts in the lowest category for its activity. Technical staff must also hold professional competency certificates from Dubai Municipality. A firm can pass a DED check and still be wrong for your project so check both.
| What to check | Where to check | What it confirms |
| Trade licence | DET portal or Dubai REST app for mainland firms | Status and expiry and activity and address |
| Contractor registration and classification | Dubai Municipality contractor register on the Invest in Dubai platform | Right to do building work within a category |
| Free zone licence | The free zone authority’s own portal | Valid licence inside that zone |
| Fire safety or utility approvals | Dubai Civil Defence and DEWA where relevant | Approval for specific systems |
What Risks Do You Take With an Unverified Dubai Construction Company?
You take legal and financial risks that can stop your project. The new law bars owners from engaging unregistered contractors. Sanctions can include suspension of construction activity. Dubai Municipality may also refuse an approval or an occupancy permit for work done by an unlicensed firm.
An unlicensed contractor may even be barred from enforcing contract claims which makes any dispute harder to settle. Add the cost of replacing the firm mid project and a cheap quote from an unverified Dubai construction company can become the most expensive option.
How Do You Check a Firm’s DED Status and How Long Does It Take?
For a mainland firm it takes under five minutes. Follow these steps:
- Ask the firm for its trade licence number before you sign anything.
- Search the licence number or company name on the DET e-services portal at app.invest.dubai.ae or in the Dubai REST app.
- Check that the licence is active and not close to expiry.
- Check that the licensed activity covers construction or engineering contracting.
- Match the registered address with the address on your contract or invoice.
- Look up the firm on the Dubai Municipality contractor register.
If you want to skip the legwork firms.ae lists firms only after checking them against DED and free-zone registries. Use it to shortlist a Dubai construction company or an engineering contracting company and then run the steps above on your final choice.
Tip: Ask for the licence number and the Dubai Municipality registration details before the first meeting ends. Check both yourself on the official portals and save a dated screenshot. If anything changes later you have proof of what was valid when you signed.
How Do You Verify a Construction Firm Licensed in a Free Zone?
Through that free zone’s own portal. DET only covers licences on the Dubai mainland so a free zone firm will not appear there. Each zone such as DMCC and DIFC and Dubai South runs its own lookup. If you are not sure which authority issued the licence, the Ministry of Economy’s National Economic Register can help.
Free zone status does not remove the building rules that apply in free zones too, so the engineering contracting company must still be registered with Dubai Municipality. Some free zone sites such as JAFZA also need a licence from the zone authority.
Is Verifying a Firm Really Worth the Effort?
A five minute check protects your permit and your timeline and your budget. The Mirdif landlord got his project moving again but only after losing weeks he could have saved. Whether you choose a Dubai construction company for a villa or an engineering contracting company for a larger build the same checks apply. Check the licence and the activity and the municipality registration. firms.ae lists licence-verified firms so you can start from a shortlist you can trust.
Browse verified firms on our website before you hire a construction company or an engineering contracting company.
Frequently Asked Questions
DED verification means checking a company’s trade licence through the official Dubai register to confirm that it is valid and displays the correct business activity and address. DED is now part of the Department of Economy and Tourism (DET).
Hiring an unverified construction firm can lead to project delays, rejected approvals, financial penalties, and difficulties with regulatory compliance. You may also face additional costs if you need to replace the contractor. Always verify the firm’s licence and registration before signing a contract.
You can often check a Dubai mainland company’s licence online in just a few minutes using the official Department of Economy and Tourism (DET) services or the relevant Dubai government app. The time required may vary depending on the information available and the verification method.
Yes. A free-zone company’s trade licence should be checked with the relevant free-zone authority, as mainland licence services may not cover it. Construction and engineering contractors must also meet applicable Dubai Municipality registration and approval requirements for their specific activities.