Can I add a new business activity to my existing Dubai trade licence?

Hold off on the maintenance jobs until your licence covers them. The activities listed on a trade licence define what the company may lawfully do, and general maintenance is a different activity from cleaning services — taking the work first risks fines for operating outside your licensed scope, and it can also undermine your insurance and weaken your position if a job goes wrong or a client refuses to pay. The good news is that adding an activity is routine. You apply to Dubai's licensing authority to amend the licence, select the activity code that matches the work you actually intend to do, obtain any external approvals that particular activity requires — some technical activities need sign-off from other government bodies — and amend the company's memorandum if you operate as an LLC. Fees apply, and the change is usually processed without drama. The practical sequence: identify the exact activity description that covers small maintenance work, confirm any approval requirements, amend the licence, then start quoting for the jobs. A commercial lawyer or licensing agent can confirm whether the specific activity you want carries extra approval requirements in your case.