You have a report. Maybe it came from a home inspection, maybe from a structural evaluation, maybe from a soils engineer. It has photos, a few findings, and a line that says something like “further evaluation recommended” or “repair per engineer’s design.” What it doesn’t have is an answer to the question you care about: what exactly is going to be fixed, and how far does the work go?
That gap between findings and scope is where a lot of confusion about foundation repair lives. It is also why two bids for “the same job” can look nothing alike, and why our foundation repair cost page talks about scope before anything else. This post walks through how inspection findings get turned into a repair scope, step by step. If you want to know what different kinds of inspection cover in the first place, read what a foundation inspection covers. Our foundation inspection page explains how we approach an evaluation.
A finding is not a scope. A scope says what will be repaired, why, how far the work extends, what documents and approvals it needs, and what happens if the ground tells a different story once it is opened up.
Step 1: Separate observations from conclusions
Read the report and sort every line into one of two piles.
Observations are things someone saw or measured: a crack of a given length in a given place, a floor that is out of level between two points, a downspout discharging at the wall, efflorescence on a stem wall, a post not bearing on its pad.
Conclusions are statements about cause or significance: “consistent with differential settlement,” “likely expansive soil,” “not structurally significant at this time.”
A home inspection report will mostly give you the first pile, and often a recommendation to have the second pile done by someone else. That is by design: as our post on what inspections cover explains, a home inspection notes conditions and refers engineering questions onward. A scope needs both piles. Without a supported conclusion about cause, any repair is a guess about what problem it is solving.
Step 2: Cause decides the class of repair
The same crack can lead to very different scopes depending on what caused it.
- If the cause is shrinkage or a one-time event and the crack is dormant, scope may be sealing and monitoring.
- If the cause is water against the foundation, scope may start with drainage. Our companion post on the cost of delaying drainage fixes covers that tradeoff.
- If the cause is ongoing settlement or soil movement, scope moves toward support improvement, and with it engineering and, often, soils work.
Our seasonal vs progressive cracks post explains why a single visit sometimes can’t settle the cause, and why some scopes begin with a monitoring period.
Step 3: Damage level decides how far the code says the repair must go
This part surprises people. California’s Existing Building Code sets rules for repairing existing buildings, and the extent of required work depends on how much damage there is.
The code defines a repair as “the reconstruction, replacement or renewal of any part of an existing building for the purpose of its maintenance or to correct damage.” For damage below a defined threshold the code calls substantial structural damage, “the damaged elements shall be permitted to be restored to their predamage condition” (CEBC §405.2.1). In plain terms, a fix can put the damaged parts back the way they were.
Above that threshold, the path changes. The code’s definition is technical. It looks at things like whether the lateral load-carrying capacity of a story has dropped by more than a third, or whether gravity-carrying elements serving a large share of the floor and roof area have lost a significant part of their capacity. When a building crosses that line, a registered design professional has to evaluate it and submit the findings to the code official. If the evaluation shows the lateral system, “including its foundation,” would not comply even if repaired to its predamage state, the code requires that system and its foundation to be retrofitted (CEBC §405.2.3).
Deciding which side of that line a house falls on is a job for the engineer and the City, not a homeowner or a website. The point for scope is simpler: the damage classification in an engineer’s evaluation can change the legal extent of the repair, not just its size.
The code adds one more scope rule. Work on undamaged parts “that is necessary for the required repair of damaged components shall be considered part of the repair” (CEBC §401.2). If the fix requires removing and replacing an undamaged slab section to reach a footing, that slab work belongs to the repair scope.
For concrete specifically, the code permits structural concrete repair to follow ACI 562, the American Concrete Institute’s repair code, with some exceptions (CEBC §405.1.1). You may see it cited in an engineer’s repair notes.
Step 4: Soil findings add their own scope lines
When the report raises questions about soil, scope often grows a geotechnical layer.
- The residential code lets the building official require a soil test where data indicate expansive, compressible, shifting, or other questionable soil is likely (CRC R401.4).
- City of San Diego Information Bulletin 141 (April 2026) requires a geotechnical report for buildings supported on fill or on expansive soil.
- The City’s Guidelines for Geotechnical Reports ask the consultant to estimate future total and differential movement, and to say whether a settlement-monitoring program “is or is not recommended,” with monument locations and a schedule if it is. Monitoring can be a scope line in its own right.
- The same guidelines require reports to address surface and subsurface drainage where needed to control differential movement. On those lots, drainage sits inside the engineered scope.
If an older geotechnical report already exists, ask whether it still fits. The City treats geotechnical reports as valid for three years unless the consultant sets a shorter date, and an update may be needed if site conditions or the project have changed. Our settlement repair timeline covers how that affects planning.
For repairs to existing structures driven by geotechnical hazards, the City guidelines say the design “must meet all minimum standards contained in these guidelines for new construction.” That is one reason a soils-driven repair scope can look larger than the visible damage suggests.
Step 5: Scope gets written down with documents and approvals
A usable scope names more than the repair method. On permitted foundation work it usually ties to:
- The engineer’s evaluation and, where required, stamped plans
- Any geotechnical report or update the design relies on
- The Building Permit and its inspection steps. City of San Diego Information Bulletin 120 (October 2025) states that “all construction that requires a permit must be inspected before it is covered or concealed.”
- Drainage, restoration, and monitoring, written in or written out explicitly
Our San Diego permit basics post covers when a permit is needed. Our post on when to involve a structural engineer and our structural engineer page cover who signs what.
Step 6: Expect the ground to have a say
No inspection sees everything. Once a footing is exposed or a slab is cut, the conditions underneath may differ from what anyone assumed.
The City guidelines anticipate this. After grading or excavation, the consultant should “provide updated recommendations for foundations, retaining walls, and improvements based on the encountered conditions and soil test results.” On the permit side, IB-120 says construction changes “are required when the approved plans and specifications are modified during the construction process” and must be reviewed and approved by the City before they are incorporated. The bulletin also notes that construction changes “may delay the inspection process,” that only one can be submitted at a time, and that a change “does not extend your permit.”
For scope, this means a good contract says how hidden conditions will be handled: who evaluates them, how changes are priced and approved, and how the City construction-change step fits in.
Step 7: When the recommended scope feels out of proportion
Sometimes a report recommends a repair that seems huge relative to the problem or the property. A second opinion from another qualified engineer is a normal step.
The City’s geotechnical guidelines describe a narrow path for extreme cases. Where a recommended geotechnical repair “may cause unreasonable hardship (i.e. exorbitant cost where the repair exceeds the value of the property), the owner may hire other geotechnical consultants for alternative recommendations.” In rare instances, an owner may record a formal notice accepting a lesser repair, but only if the building official is satisfied that minimum standards can’t be met and that the hazard will still be reduced. That is an exception for serious geotechnical hazards, not a shortcut for ordinary repairs.
Comparing two bids by scope, not by total
When bids differ, line them up by these questions before you compare any totals:
- Cause: What problem does each bid say it is solving? Is that supported by an evaluation?
- Extent: How much foundation does each cover: one corner, one wall, the whole perimeter?
- Method: Same repair approach, or different ones?
- Documents: Does each include engineering, a soils report if needed, and permit work?
- Drainage: Included, excluded, or left to you?
- Undamaged work: Slab cutting, flooring, finishes, landscaping restoration?
- Monitoring: Before or after the repair?
- Hidden conditions: How are surprises handled and approved?
The broader cost factors are in what drives foundation repair cost and on our foundation repair cost page. We don’t publish prices here because, as this post shows, the scope decides the job.
If you are in the middle of a sale, the transaction-specific steps are in our buyer’s foundation inspection guide and seller foundation documentation checklist.
Where we fit
We evaluate the findings you already have, look at what the structure and site are doing, and help turn that into a defined scope. Where soils, damage classification, or structural design drive the answer, we coordinate with licensed engineers as needed. Nothing in this post is legal advice or a determination about any specific house.
Next step
If you have an inspection report for a home anywhere in La Jolla and want help understanding what it means for repair scope, request a Free Quote or call (650) 739-6537.
Sources (accessed October 15, 2026)
- 2025 California Existing Building Code, Section 202 (definitions of Repair and Substantial Structural Damage), Section 401.2, and Section 405
- 2025 California Residential Code, Section R401.4
- City of San Diego Information Bulletin 141, Soil Bearing Capacity (April 2026)
- City of San Diego Information Bulletin 120, Building Inspection (October 2025)
- City of San Diego, Guidelines for Geotechnical Reports (2008), Sections 2.4, 6.4.5, 6.6.4, 7.6.2, and 8