You should use the following general steps to find a reliable service:

1. Online Search: Use search engines like Google to look for “dozen red roses delivery in Dubai” or similar keywords. This should provide you with a list of florists offering this specific service.
2. Florist Websites: Visit the websites of well-known florists in Dubai. Most florists have an online presence where you can browse their selection, place orders, and arrange for delivery.
3. E-commerce Platforms: Check popular e-commerce platforms that operate in the UAE. Some florists may have a storefront on these platforms, making it convenient for you to place an order.
4. Customer Reviews: Look for customer reviews and testimonials to gauge the quality of service and the freshness of the flowers provided by different florists.
5. Social Media: Explore social media platforms like Instagram or Facebook. Many florists use these platforms to showcase their flower arrangements, and you may find options for dozen red roses.
6. Ask for Recommendations: Seek recommendations from friends, family, or colleagues who may have used flower delivery services in Dubai. Personal recommendations can be valuable.

Once you identify a few potential florists, check their websites for specific details on pricing, delivery options, and the quality of Valentine flowers Dubai. Additionally, you may want to contact the florist directly to inquire about any customization options or specific preferences you may have for the dozen red roses.