Hidden Conditions and Scope Gaps: What to Do

A flooring crew lifts an old finish and finds soft subfloor around the toilet. In this illustrative example, the quote covers finish replacement but says nothing about the structure below. Before anyone cuts farther, the office needs to understand both the damage and the promise it already made.

A discovery does not automatically entitle a contractor to extra money. Start with the approved scope, applicable law, and what reasonable inspection should have revealed.

Name the problem honestly

Use these working categories to guide the conversation, rather than treating them as legal conclusions.

A material price increase is a pricing issue, not a newly discovered physical condition. Keep that distinction in the estimate scope attachment.

Preserve the condition and give notice

Pause the affected operation, protect the area safely, and record the discovery before removing the evidence where it is safe to do so. Follow the contract's notice recipient, method, and deadline. A photo sent to the owner's neighbor is not a substitute for required notice.

The federal FAR differing-site-conditions clause requires prompt written notice before disturbance for the conditions it covers. That clause governs contracts containing it; it does not grant every residential contractor an adjustment. The useful field habit is to preserve evidence and notify early.

In an inspection report, record:

• where the condition is and when it became visible;
• wide and close photos, measurements, and the authorized opening;
• observed facts, with customer statements labeled separately;
• the relevant scope or drawing reference;
• what stopped, what protection was provided, and who was notified.

Use a request for information when drawings or design responsibility need clarification. The plans-versus-field guide explains that route. A question or RFI response does not itself settle payment authority.

Decide the safe method before the price

Do not probe suspicious material or continue an unsafe operation just to complete the estimate. OSHA's construction safety provisions require employer prevention programs and competent-person inspections, with specific hazard standards applying to the work.

Two examples need particular care:

• EPA's RRP program covers many paid projects disturbing paint in pre-1978 housing and child-occupied facilities. Check coverage, qualifications, and work practices before disturbance.
• EPA's asbestos NESHAP overview describes inspection and work requirements for covered facilities. Its residential exclusions are not a blanket exemption from worker-protection or state and local rules.

Write the required specialist, testing, isolation, or permit review into the proposed work. Update the job hazard analysis when the method changes. A customer's signature cannot make a prohibited method acceptable.

Give the customer a complete decision

Compare the finding with the actual contract before deciding who pays. Then describe the corrective work, alternatives where feasible, added or deducted price, schedule effect, and any dependency on testing or inspection.

For an illustrative floor repair, the decision might be: authorize a defined additional opening for assessment; obtain the needed repair design; then approve the priced repair. Do not quote an unlimited “repair all damage” promise from one exposed corner.

CSLB's California guidance requires covered scope or price changes in writing, signed before the change. Other jobs need their own governing rules. Use the change-order workflow and a change order that identifies the authorized approver.

Immediate protection and later reconstruction are separate decisions. Record why urgent protection could not wait, the authority for it, actions taken, and work still awaiting approval.

Restart and close the actual job

Issue an updated work order before the crew resumes. Keep the discovery, decision, approval, and final work connected in the file.

If the customer declines a correction, decide whether the original work can proceed lawfully and safely. Do not cover a defect or assume a warranty exclusion removes statutory duties. Record remaining conditions and outstanding inspection status at closeout.