Once approved and you obtain the keys, the next step is to have the utility services connected. DEWA (Dubai Electricity & Water Authority) can be contacted on 04 304 1304 or take a browse on their website at www.dewa.gov.ae
A security deposit is required, this is usually around 1,000 AED and refundable when the service is terminated and fully paid up. Do remember to take a copy of the lease, a copy of your passport and residency visa, and a no objection letter from the employer if the connection is to be in the company name. If the service is to be in the name of the Company (as showing on the lease) ask for a list of the required documents.