Plumbing Hardware Finder App

I'm looking to develop an application that assists users in locating plumbing hardware and connecting with plumbers and technicians.

Key Features:
- Help users find plumbing materials
- Locate electricians by proximity
- Ratings and reviews for technicians
- Option to book appointments

Communication:
- Users should be able to contact plumbers and technicians via in-app messaging

Ideal Skills:
- App development (iOS and Android)
- UI/UX design
- Knowledge of location-based services integration
- Experience with implementing rating systems and in-app communication features.

Please provide examples of similar projects you've completed.