Evaluate Wooden Beams in Commercial Structure

I need a structural engineer to evaluate aged but intact wooden load-bearing beams in a commercial building. The beams are in good condition but have aged.

The evaluation should include:
- Assessing structural integrity
- Identifying potential weaknesses
- Recommending maintenance or reinforcement

Ideal skills and experience:
- Structural engineering expertise
- Experience with wooden structures
- Knowledge of commercial building safety standards