How to Compare and Level Subcontractor Bids
Three bids for the same trade rarely cover the same work. Leveling puts them on equal footing so the price difference means something.
Build a leveling sheet
Make one row per scope item (and one for each common exclusion) and one column per bidder. For each cell, mark Included, Excluded or Unclear. Use the scope of work as the list of rows.
Resolve every "Unclear"
Call the bidder and ask. Get the answer in writing, even if it is a short email. Do not fill a gap with an assumption in the sub's favor.
Add back the exclusions
Price each excluded item, either from another bidder or from your own estimate, and add it to that bid. The adjusted totals are the numbers to compare.
Look beyond price
- Availability and schedule fit
- Experience on similar work
- References and past performance with your company
- Insurance, licensing and financial stability
- Quality of the proposal itself: clear, complete, on time
Watch for red flags
- A price far below the others with no explanation
- Reluctance to put exclusions or assumptions in writing
- Missing license or insurance documents
- A request for a large deposit before any work or material is delivered
Document the decision
Keep the leveling sheet with the job file. If a question comes up later about why a sub was chosen or what was included, you will have the answer.
General information for contractors, not legal or insurance advice. Licensing, insurance and lien rules change; confirm current South Carolina requirements with the state or an attorney.