Buying a Home in the Pyrrhotite Zone

You can buy a home in the affected region safely. Thousands of people do it every year. What you cannot do is buy one casually — because a single missed step before closing can cost you six figures and leave you with no program to turn to.

This page is the sequence: what to check, what to ask, what to think twice about waiving, and the one deadline that runs against you from the moment you sign.

The short version

• Test before you close, or you may be permanently ineligible. In Connecticut, a buyer who purchases without a pre-sale test or visual exam can be locked out of CFSIC — the program that pays for replacement.
• Get the actual report in your hands before closing. A test that happened but never reached you may not save your eligibility.
• A severity-graded evaluation by a licensed professional engineer is the step that counts — not a general home inspection, and usually not a core test.
• You may be able to inherit the seller's CFSIC claim, including their place in the queue. Ask whether one exists, and what status it's in.
• Financing is where this usually breaks. Lenders generally won't lend against a confirmed, unremediated foundation.

The rule that catches buyers: test before the sale closes

This is the most important section on this page.

Under CFSIC's rules, for a residential building purchased on or after February 1, 2019, where the buyer is aware the building — or any addition or garage — was constructed in 1983 or later, the buyer is only eligible to apply as a Type 1 or Type 2 claimant if the buyer or the seller has tested for pyrrhotite, or conducted a visual examination for evidence of pyrrhotite, prior to the date of sale.

If you close on an untested house, you may have no path into the program. Not a delayed path — no path. And the fix for a pyrrhotite foundation runs roughly $150,000 to $250,000.

In practice:

• Ask first: has this home been tested or visually examined? If yes, get the actual document and confirm it's severity-graded to CFSIC's classification.
• Possession matters, not just existence. CFSIC's guidance is that the report must be in your possession at the time of sale and dated before closing. A seller who says "oh, an engineer looked at it years ago" has not protected you. Get the paper.
• Either party's test satisfies the rule — the seller's or yours — as long as it predates the sale.
• The report does not expire. An older engineer's report or core test still counts.
• Knowing about the pyrrhotite does not disqualify you. You may knowingly buy an affected home and still claim. What disqualifies you is the absence of testing before the sale.
• There is no minimum threshold. CFSIC declines to set a percentage floor — a claim can't be denied for "not enough" pyrrhotite.

If you're buying in Connecticut in the affected zone and the house was built in or after 1983, treat pre-closing testing as essential. It's the cheapest insurance in the transaction.

What testing looks like before you own the house

Start with a severity-graded visual examination by a licensed professional engineer. For CFSIC's purposes the exam must be severity-coded using CFSIC's severity class grading, or it isn't useful to the program. CFSIC accepts such an exam from a Connecticut-licensed professional engineer or from a CFSIC-certified home inspector — but use a professional engineer if you also want Connecticut's testing reimbursement, because the Department of Housing won't reimburse an exam performed by a CFSIC-certified home inspector.

This is not your general home inspection. A standard home inspection is a different product performed for a different purpose, and ordinary home inspectors and appraisers aren't expected to identify pyrrhotite. Budget for the engineer's evaluation as a separate line item.

You usually don't need a core test. If the visual exam returns Severity Class 3 or 2, that's sufficient — no core test required. A core test is only necessary for a Class 1 foundation, where there's no visible damage but you want to establish eligibility and get in line, and note that a Class 1 registration requires the core result to come back positive. Core testing runs roughly $2,000 to $5,000 and takes several weeks for lab analysis — a real scheduling problem inside a normal closing window, so raise it early.

Core sampling is destructive, so you need the seller's permission. You're drilling cores out of a foundation you don't own yet. Build it into your inspection contingency and get it in writing.

Don't treat a clean appraisal as evidence of anything. In one Connecticut case a lender sued an appraiser who missed a crumbling foundation; the court dismissed the suit, relying on the appraisal's own limiting conditions and unrebutted expert testimony that spotting crumbling foundations belongs to a home inspector or structural engineer, not an appraiser. It was a trial-level decision in a lender's case — but the practical lesson stands.

On reimbursement, here's the part people get backwards. You can't claim while you don't own the home — Connecticut requires proof of ownership and reimburses retrospectively. But you become eligible once you've purchased, even if the inspection happened before closing. So pay for the pre-closing engineer's exam, keep the receipt, and file after you own it. Connecticut reimburses the visual inspection 100% up to $400 and two core samples at 50% up to $2,000, subject to program rules including a 20-mile radius of the former J.J. Mottes plant in Stafford Springs (waivers exist). If a prior owner was already reimbursed for one test type you can't claim that same type again, though you may claim the other. Massachusetts runs its own program — 100% up to $600 for a visual exam by a licensed PE, 75% up to $4,000 for two core samples, with no year-built or distance restriction. Both programs depend on year-to-year funding, so confirm before you count on the money. See Foundation Testing Reimbursement.

Ask whether a CFSIC claim comes with the house

If the seller has an existing Connecticut claim, it may transfer to you — and it may be worth real money, because new applicants now generally enter as "Tier 2 Pending," registered with a claim number but without an assigned adjuster or queue position until CFSIC works through earlier claims.

A Type 1 claimant — Active, Inactive, or Pending — whose foundation has not yet been remediated may transfer through a formal Claim Transfer Agreement, dated concurrently with the sale. You take the claim at the status and financial value it held when signed, including the seller's place in the adjustment sequence.

What to check before you count on it:

• What status is it? This is the question that matters most. If the claim is Inactive or Pending, the Claim Transfer Agreement provides that CFSIC may at any time and at its sole discretion remove it from further consideration — meaning it may never be paid. A transfer is only a real funding path if the seller holds a fully executed Participation Agreement. Ask for documentation of status; don't accept a characterization.
• Type 2 (reimbursement) claims do not transfer. Only Type 1.
• No transfer once construction has begun.
• You accept the seller's application and evidence as-is. Their file becomes your file.
• A new Participation Agreement is issued in your name against a recorded deed; the seller's is terminated and any contractor deposit refunded to CFSIC. You then re-engage a CRCOG-approved contractor or obtain two new proposals.
• Only the seller or their attorney can submit the paperwork — not your agent, not you.
• Two clocks. A 180-day deadline to sign a new CFSIC-approved construction contract applies — CFSIC's process page ties it to transfers involving a signed construction contract, while the agreement states it more broadly, so have ESIS confirm. And you must own and occupy the home as your principal address for at least 365 days after the Certificate of Completion.
• You can't pass it on. A transferred claim can't be transferred again — which matters if you might resell before remediation.
• You'll sign a broad release of CFSIC, its Superintendent, officers, directors and service providers.

Financing and insurance: where deals actually die

Most lenders will not finance a confirmed, unremediated foundation. Properties with unresolved structural problems are generally treated as having no lendable value until remediation, and are often appraised subject to repair. Renovation and construction loans are the usual exceptions — FHA 203(k) is technically available for foundation replacement, though in practice most homeowners who have replaced foundations used savings or retirement funds.

If you're financing, talk to your lender before you're deep into the transaction. Finding out at underwriting is an expensive way to learn this.

Insurance: you can get a policy, but it won't cover this. Connecticut's Insurance Department issued guidance in October 2015 that insurers should not cancel or non-renew because of a crumbling foundation (extended to condominium master policies in January 2017), and Massachusetts's Division of Insurance issued a similar bulletin in October 2021 — both supervisory guidance rather than statutory bars. But in three companion cases decided November 12, 2019, the Connecticut Supreme Court held that "collapse" requires actual collapse or imminent danger of it, and (in Karas) that "foundation" includes basement walls, so the exclusion applies. Insurers treat pyrrhotite as a latent construction defect, not a sudden accidental loss.

Budget accordingly: insurance covers everything else, and CFSIC — which pays only after your insurer issues a written declination — is the realistic funding path in Connecticut.

What to ask the seller

Put these in writing:

1. Has the foundation been tested or visually examined for pyrrhotite? If yes, request the full report and confirm it carries a CFSIC severity class code — and take possession of it before closing.
2. Is there a CFSIC claim on this property? What type, what status (Active, Inactive, Pending), is there a fully executed Participation Agreement, and has any construction begun?
3. Has an insurance claim been filed or declined? A written declination in hand saves you a step.
4. Has the assessment been reduced for a defective foundation? Useful information — and don't assume the reduction follows you. Connecticut's reassessment runs until the next revaluation or until the foundation is repaired, so confirm with the town assessor where things stand.
5. What year were the house, additions, and garage built? The 1983-or-later trigger applies to additions and attached garages too.
6. Any foundation repairs, sealing, or waterproofing? Cosmetic work on a pyrrhotite foundation is a warning sign, not a fix.

In Connecticut you'll also receive the mandatory Residential Property Condition Report, which since October 2019 asks the seller whether they have knowledge related to the presence of pyrrhotite in a foundation, along with questions about foundation testing, inspections, and repairs. Read those answers carefully. If the seller fails to provide the report you receive a $500 credit at closing — a credit, not an answer, and never a substitute for testing. Note too that some sellers are exempt from the report entirely, including executors, trustees, and foreclosure sales — a common situation in this region, and a reason not to rely on the form alone.

You may also encounter optional Connecticut REALTORS® concrete advisory forms. They're voluntary — a seller may decline, and their absence tells you nothing definitive.

In Massachusetts, expect less. Massachusetts remains largely a caveat emptor state; sellers must disclose lead paint and septic systems and must not misrepresent or actively conceal, but there is no statutory pyrrhotite disclosure requirement. The state's March 2026 working group recommended creating one and acknowledged that homes today "may be sold without adequate testing or disclosure, transferring significant financial risk to unsuspecting buyers." Your agent does have an affirmative duty to disclose known material defects under 254 CMR 3.00 — but the burden of asking is squarely yours.

Think hard before waiving the inspection

In competitive markets, buyers waive inspections to win. In this region, that's how people buy a $200,000 problem.

Massachusetts has narrowed the pressure: under regulations effective October 15, 2025 (760 CMR 74.00, adopted under the 2024 Affordable Homes Act), sellers and their agents may not require or encourage you to waive a home inspection, and you must receive a written disclosure of your inspection right. The rules cover one-to-four-unit homes, condominium units in buildings of any size, and cooperatives, with exemptions including foreclosures, certain family transfers, and new construction sold with a one-year warranty.

Important: the rule restrains sellers and agents — it does not stop you from choosing to skip an inspection. The decision is still legally yours. In this region, make it deliberately. And make sure your inspection contingency is broad enough to cover a separate engineer's evaluation and, if needed, core sampling, with a timeline that accommodates lab turnaround.

The deadline that should shape your timing

Connecticut's CFSIC stops accepting new Type 1 and Type 2 applications at 5:00 PM on June 30, 2030 — sooner if allocated funds are exhausted. If you're buying an affected home expecting to eventually claim, that window is finite and the queue ahead of you is long.

Massachusetts has no replacement program right now. A bill (S.3091) is pending in the Joint Committee on Financial Services, reportedly funded by a $6 fee on homeowner and condo insurance policies plus a $6-per-cubic-yard surcharge on ready-mix concrete — but pending is not passed. If you're buying in Massachusetts, price the home on the assumption that you pay for the foundation. Massachusetts does reimburse testing today, so at minimum get the engineer's evaluation and claim it.

A few common questions

Your next step

Before you remove contingencies on any home built in or after 1983 in the affected region: get a severity-graded visual examination by a licensed professional engineer, take possession of the report before closing, and ask the seller in writing whether a CFSIC claim exists and what status it's in.

Those steps take days, cost a few hundred dollars, and are the difference between buying a house and buying a liability.

Our free Homeowner's Pyrrhotite Checklist lays out what to collect and in what order, 7 signs your foundation may have pyrrhotite tells you what to look for on a walkthrough, and what replacement really costs shows what you'd be taking on.

Related: selling

This page is general information for homebuyers, not legal, real estate, financial, or engineering advice, and reading it does not create an attorney-client or agency relationship. Program eligibility rules, disclosure obligations, figures, and deadlines change, and how they apply depends on the specifics of the property and transaction. Consult a licensed real estate attorney in your state, and confirm current details with CFSIC, CRCOG, or the Massachusetts program, before acting. Rules and figures verified as of July 2026.Last verified: 2026-07-31