7 Scope Gaps That Show Up in Subcontractor Bids (and How to Catch Them)

Scope gaps rarely look like much on bid day. They surface later as change orders, back charges, or an item nobody carried. These are the gaps that show up most often, and where to look for them.

1. Permits and fees

Some bidders include permits and inspection fees, others exclude them. On a small package the difference can decide who is actually low.

2. Owner-furnished or contractor-furnished material

Fixtures, equipment, and finish materials are a common source of confusion. Confirm whether each bid assumes the material is supplied by you, the owner, or the sub.

3. Demolition and removal

Who removes existing work and hauls it away is frequently left out, or assumed to be another trade’s job.

4. Cutting, patching, and fire sealing

Penetrations through walls and floors need cutting, patching, and often firestopping. Trades commonly exclude these and assume someone else handles them.

5. Temporary work

Temporary power, lighting, protection, and cleanup are easy to leave out and easy to fight about later.

6. Schedule and working-hour assumptions

A bid priced for normal daytime work with full site access can grow quickly if the job needs phasing, after-hours work, or multiple mobilizations.

7. Low allowances

An allowance can make a bid look complete while pushing the real cost into a later adjustment. Compare allowance amounts across bidders and against your own estimate.

How to catch them consistently

Read the exclusions and qualifications first, before the price. Then mark every excluded line item explicitly, rather than leaving it blank, so gaps stay visible across the whole package. The bidder with the most marked gaps is the one to call before you award.