Commercial Construction Estimation

I'm seeking a detailed cost estimation for a commercial building project that is currently in the pre-construction phase. The estimate will be used to secure funding and guide the budgeting process.

Ideal skills and experience include:
- Expertise in commercial construction projects (electrical estimating)
- Strong understanding of cost estimation methodologies
- Ability to analyze architectural and engineering plans
- Experience in pre-construction budgeting and planning for electrical

Please provide samples of similar work done and a brief outline of your approach to this task.