Selling or Buying a House with a Foundation Crack

Do you have to disclose a foundation crack when selling?

In most cases, yes, if you know about it and your state’s disclosure form asks. Each state sets its own rules and form, so check yours with your agent or a real estate attorney. Assume a crack you know about belongs on the form, even if it’s small or already repaired.

A 2006 South Dakota Supreme Court case (opens in a new tab) shows how foundation crack disclosure goes wrong. The sellers had puttied and painted over cracks in the basement walls a few years before the sale. Their disclosure statement said there were no cracks in the interior walls.

The state’s form asked whether there were “any interior cracked walls or floors.” The court noted the question does not ask for significant cracks only (opens in a new tab), and said the disclosure statutes require a complete and truthful disclosure made in good faith. The sellers had also told the buyer about past water problems out loud, and the court held that oral disclosures didn’t satisfy a law that requires a written form.

That’s one state’s law, not a rule for everyone. The practical lessons travel well, though:

• Read every question on your state’s form literally. If it asks about cracks, it means cracks of any size.
• Put it in writing on the form, not only in conversation.
• Never cover a crack to hide it. Paint or patch that hides a crack you know about turns a repair question into a legal one.
• If you learn something new before closing, ask your agent how to update the disclosure.

Should you fix a foundation crack before selling?

Fix it if it’s a stable crack you can repair properly, and get an engineer’s report first if it’s a crack that could mean movement. Either way, disclose it and keep the paperwork. A documented repair answers the buyer’s questions before they’re asked.

Which path you’re on depends on the crack:

• Thin vertical or diagonal crack in a poured wall, under 1/4 inch, edges flush: usually shrinkage. Measure it, check it hasn’t grown, then seal it with an injection kit if it leaks or you want it closed. The foundation crack injection guide covers the job.
• Horizontal crack, bowing wall, offset edges, stair-step crack in block, or wider than 1/4 inch: don’t seal it first. Get a structural engineer’s report on what caused it and what the repair involves. The horizontal crack guide and bowing wall guide explain why.
• Crack that was sealed before and opened again: treat it as a possible sign of movement. Pillar To Post’s inspectors say a settlement crack that has been repaired and has re-cracked (opens in a new tab), not just a hairline, could indicate ongoing movement.

Sealing an engineer-list crack before an engineer sees it hides the evidence they need. To a buyer, it can look like a cover-up even when it wasn’t.

The 10 ft kit covers about 6 to 10 feet of crack, so plan on 8. The kit sizing guide helps if you have several cracks or a long one.

What records should a seller gather?

A dated record of the crack, any engineer’s report, and proof of the repair and the water fixes. Together they show a buyer the crack was understood, fixed the right way and watched afterward.

Use this seller checklist:

1. Dated photos. Close shots with a ruler or crack gauge in the frame and wide shots that show where the crack is. Take them before the repair, right after it, and again before you list.
2. A monitoring log. Dates, widths at one marked spot, and whether the crack was damp. The crack monitoring guide shows how to keep one.
3. The engineer’s report, if you had one. Keep the whole report, including what it says caused the crack and what it recommended.
4. Repair records. Receipts, the product or contractor used, the date, and photos of the work. Note whether a contractor’s warranty can transfer to a new owner, and get the terms in writing.
5. Water fixes. Receipts or photos for gutter repairs, downspout extensions and regrading. They show you dealt with the cause, not only the crack.
6. Any insurance claim or permit paperwork connected to the foundation.

A log matters more than it looks. Pillar To Post’s inspectors note that ongoing settlement is very difficult to identify from a one-time visit (opens in a new tab), and that the repeat visits over a few years it would take don’t fit a real estate transaction. Your own dated readings over months give a buyer’s inspector more than one visit can.

What does a home inspection foundation crack finding mean?

It means the inspector saw something worth a closer look, not that the foundation is failing. A general home inspector reports what they can see and doesn’t do engineering. A note that says “further evaluation” is pointing you to a structural engineer.

The inspection standards spell this out. InterNACHI’s standards of practice tell inspectors to report observed indications of possible foundation movement (opens in a new tab) as in need of correction, and also say inspectors aren’t required to provide engineering services or determine the cause of a condition. ASHI’s standard says the inspector inspects the foundation and framing (opens in a new tab) but doesn’t offer an opinion on the adequacy of structural systems.

So a home inspection foundation crack note tells you where to look. Whether the crack matters depends on its direction, width, edges and whether it’s moving, which the when to worry guide walks through.

Take a small horizontal crack seriously even if the report calls it minor. In the South Dakota case, the buyer’s inspection noted a small horizontal crack and minor bowing (opens in a new tab) and called them of no structural significance at the time. After a heavy rain, the buyer found water damage behind the paneling on all four basement walls.

What should you check when buying a house with foundation cracks?

The crack’s type, the seller’s records, and an engineer’s opinion on anything that isn’t a thin, stable shrinkage crack. Do it before your inspection or due diligence period runs out, so you still have options. Your agent can tell you what those deadlines are in your contract.

1. Read the disclosure. Note what it says about cracks, water and past repairs, and compare it with what you and your inspector see.
2. Ask the seller for records. When they first noticed the crack, photos, any monitoring log, engineer reports, repair receipts, warranties and any insurance claims.
3. Look at the crack yourself. Direction, width, flush or offset edges, signs of water, and cracks in the drywall or doors that stick upstairs. The foundation cracks hub shows what each crack type usually means.
4. Get an engineer for any warning sign. Horizontal, bowing, offset, stair-step in block, wider than 1/4 inch, or a repair that cracked again. Hire your own structural engineer rather than relying on a contractor who sells the repair.
5. Ask your lender. Some loans have property condition requirements, so ask early whether a foundation issue or an engineer’s report affects your loan.
6. Ask your insurance agent. Many policies exclude settling and shrinking cracks, so find out what’s covered before you close. The insurance guide lists what to check.

A thin vertical crack in a poured wall is common and usually isn’t a reason to walk away. The vertical cracks guide explains how to tell shrinkage from settlement.

How does a foundation crack affect the sale price?

It depends on what the crack is and what fixing it costs, and a documented answer to both keeps the price discussion grounded. A sealed shrinkage crack with records and a structural problem that needs work are very different negotiations. Your agent can tell you how buyers in your market treat each.

What gives both sides a real number to work with:

• An engineer’s report that says what the crack is and what, if anything, it needs.
• A written repair quote, or receipts for a repair already done.
• The seller’s monitoring log, showing whether the crack has moved.

Without those, buyers tend to guess, and a buyer guessing about a foundation rarely guesses low. The foundation crack repair cost guide explains what drives the price of each type of repair.

Questions

Can I sell a house as is with a foundation crack?

Yes, though expect the buyer to price in the repair they think the house needs. Selling as is doesn't change what you know about the house. Ask your agent or a real estate attorney how your state's disclosure rules apply to an as-is sale.

Do I have to disclose a foundation crack that was already fixed?

Check your state's form, and assume a past problem still matters. In the South Dakota case on this page, the form asked whether sellers had experienced water penetration problems (opens in a new tab), and the court said that meant past problems, not only current ones. Disclosing the repair along with your records usually helps you more than it hurts.

Can I paint over a foundation crack before listing?

Don't. Painting or patching over a crack you know about, without disclosing it, is the kind of thing buyers sue over, and South Dakota sellers who puttied and painted over basement wall cracks (opens in a new tab) ended up defending their disclosure in the state Supreme Court. If you want the wall to look better, repair the crack properly, keep the records and disclose both.

Should a buyer hire their own engineer?

For any crack on the engineer list, yes. A seller's report is useful, but your own engineer works for you and answers your questions. The engineer vs contractor guide explains how to find one.

Does a foundation crack affect homeowners insurance after I buy?

Many policies exclude cracks from settling and shrinking, so don't count on insurance to pay for a crack that was there when you bought. Ask your agent before closing. The foundation crack insurance guide covers what to check.