Residential Steel Beam Installation

I need a structural steel beam calculation and propping spec. for a widened kitchen opening (currently c.1.8m in a dense concrete block wall some floor and some roof loads in my residential property. The new opening size is c.3.5m.

Requirements:
- Experience with residential structural modifications
- Knowledge of local building codes and regulations
- Ability to ensure proper load-bearing support

Ideal Skills & Experience:
- Structural engineering background
- Prior experience with steel beam installations
- Strong attention to safety and detail

Looking for qualified professionals who can deliver quality work within budget. Please provide relevant experience in your bids.