Structural repair decision guides
Decide in this order: is anyone unsafe right now, is the movement active or historic, what does an independent engineer say the cause is, and only then which repair to buy. Paying $350-$800 for an independent structural engineer (Today's Homeowner, 2026) before committing to a repair that averages $5,179 (This Old House, 2026) is almost always the right sequence.
Step 1: safety. If a wall is visibly bulging or leaning, a beam or post has visibly failed, or a floor has dropped, stop using the space and get a professional out. Everything else on this page assumes the house is safe to occupy.
Step 2: active or historic? Old, stable movement in a hundred-year-old house is normal and often needs nothing. Active movement needs attention. Marking and photographing cracks over months is the cheapest way to establish which one you have, and This Old House specifically points to sudden appearance or ongoing growth as the abnormal cases.
Step 3: buy the diagnosis. Hire a licensed structural engineer who does not sell repairs. Ask for floor elevation readings, an opinion on cause, and a written scope for what the repair must achieve. That document is what makes the next step honest.
Step 4: buy the repair. Take the engineer's scope to at least three contractors. Compare method, count, depth, warranty and exclusions. Ask each one to explain, in a sentence, what problem their proposal solves. If they can't, keep looking.
Choosing structural repair between the options
The judgement calls that decide the bill, before anyone quotes you.
- Spend on the diagnosis before the repair The engineer is a small fraction of the repair cost and is the only step that prevents buying the wrong repair.
- Refuse pressure No legitimate structural problem requires a signature today. If a discount evaporates when the salesperson leaves your kitchen, that is a sales structure, not an engineering one.
- Three bids to one scope Bids priced against different scopes are not comparable. Give every bidder the same engineer's report.
- Ask about the paperwork you keep Engineer's report, permit records, before-and-after elevations, warranty documents. This is what you will hand a buyer years from now.
- Consider doing drainage first If the engineer thinks water is the driver, correcting grading and downspouts and re-measuring after a wet season can change the scope of the structural work you need.
All structural repair decision guides
Structural Repair Repair vs Replace
Structural Repair DIY vs Pro
Structural Repair Budget vs Premium
Where these figures come from
Sources last checked
- Today's Homeowner - How Much Does a Structural Engineer Cost? (2026) · retrieved 2026-07-25
- This Old House - Foundation Repair Cost (2026) · retrieved 2026-07-25
- This Old House - Foundation Cracks: What Is Normal and When to Worry · retrieved 2026-07-25
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