When demolition exposes hidden damage, use photographs, quantities and a written scope to understand the added work before approving it.
A balcony or walkway repair is open, and the contractor has found damaged plywood, framing, flashing or another condition that was not visible during the original estimate. The project now needs a decision: is the newly exposed work necessary, what exactly will be added, and how will it affect cost and schedule?
For homeowners, HOA boards and property managers in Los Angeles, the San Fernando Valley and Orange County, a useful change order should make that decision easier to review. It should connect the concealed condition to a specific repair—not simply add a price to a brief description.
Pause at a clear decision point
Ask the contractor to identify the affected location and protect the open area while the additional work is reviewed. The goal is to document the condition before it is removed or covered, without leaving the building unnecessarily exposed.
If the condition presents an immediate safety concern, keep people away and follow the direction of the qualified professional responsible for that assessment. A waterproofing change order is not an engineering determination or permission to reopen an unsafe area.
Compare the finding with the original scope
Read the relevant portion of the signed proposal before deciding whether the finding is extra work. Check what demolition, substrate replacement, flashing, disposal and finish restoration were already included. Also check for allowances or unit prices that were intended for concealed conditions.
A clear change order identifies the exact balcony, walkway, stair or wall, then states what is added, removed or revised. If several locations are involved, list them separately so the approval can be matched to photographs, quantities and the final invoice.
Compare waterproofing proposals and repair responsibilitiesAsk for evidence that explains the added work
Useful documentation includes a wide photograph showing the location, close views of the condition, measurements and a short explanation of why the original assembly cannot simply be covered. The record should be understandable to someone who was not standing at the jobsite.
Photographs alone do not establish structural capacity or define every concealed condition. When the finding involves framing, unusual movement or another structural concern, the appropriate design professional may need to establish the repair. Keep that service separate from the waterproofing contractor's scope unless the written agreement says otherwise.
Understand the steps from inspection finding to repairSeparate the repair by type
Do not group every newly exposed item under a single line called damage repair. Ask whether the change concerns the receiving surface, structural components, sheet metal, a drain or penetration, or restoration of adjacent stucco, tile or another finish.
Those items may require different materials, trades and approvals. For example, replacing deteriorated plywood is different from redesigning framing, and replacing failed deck-to-wall flashing is different from applying another surface coat. The revised scope should show which party is responsible for each connection.
Review flashing as part of the complete waterproofing assemblyReview cost, schedule and resident access together
The price should have a reviewable basis: measured quantity, stated unit price, lump-sum description or another method already agreed in the contract. Confirm whether demolition, materials, labor, disposal and finish restoration are included, and whether another trade will submit separate pricing.
Ask how the change affects the work sequence, expected completion and access. At an occupied HOA, a repair that extends a walkway closure or changes which balconies are available also changes resident communication. Management should know who will issue the update and when the next usable route will be confirmed.
Coordinate resident access during walkway repairsPut the authorization in writing
For qualifying California home-improvement contracts, the Contractors State License Board explains that changes to price or scope must be documented in a written change order signed before the added work begins. Its consumer guidance also recommends keeping change orders with the rest of the project paperwork.
An HOA or commercial agreement may have different approval procedures, signing authority and legal requirements. Follow the actual contract, the association's governing process and advice from the professionals responsible for those questions. This article is practical project guidance, not legal advice.
CSLB: California home-improvement contracts and change ordersClose the record when the added work is complete
Match completion photographs and quantities to the approved change order. Record any specified inspections, the materials used and the date the area was released for the next stage. If a later layer will conceal the repair, collect the record before that happens.
Do not assume extra work automatically changes a written warranty. Keep the signed proposal, approved change order, invoices, product information and final care instructions together, and rely on the actual warranty terms for coverage.
Keep maintenance and completed-work records togetherRequest a repair estimate with the right records
California Decking & Waterproofing evaluates balcony, walkway, stair and other pedestrian waterproofing repairs for Southern California homes, HOAs and commercial properties. Send the exact property location, photographs, available inspection reports and the existing proposal or repair history with your estimate request.
For an active project, explain what has already been opened, how it is temporarily protected and who can authorize additional work. That gives the estimating team a clearer starting point without treating a photograph as a structural diagnosis or a statutory certification.