· By Juan Murray
Why Old Wiring Can Stop Your Boston Home Sale Cold
Old wiring can stall a Boston home sale because a buyer's lender requires proof of homeowners insurance before it funds the loan, and active knob-and-tube wiring can make that insurance harder to get. If a carrier declines or attaches conditions late in the process, the closing date can slip. This can come up in any older home in Jamaica Plain, Roslindale, Hyde Park, Dorchester, or Roxbury.
Can old wiring stop a home sale in Boston?
Yes, if active knob and tube wiring keeps your buyer from getting a homeowners policy their lender accepts before the closing date. If you're getting ready to list a triple-decker in Jamaica Plain or a single-family in Roslindale, the electrical system matters to your closing timeline as much as it matters to the inspection. For a broader look at which pre-sale fixes are worth making, see what to fix before selling your Boston home. And if your building also has an unpermitted unit, those two issues are often connected; see selling a Boston multi-family with an unpermitted unit.
Key Takeaways
- A buyer's lender requires proof of homeowners insurance before it funds the loan, and active knob and tube wiring can make that insurance harder to get.
- Carrier practices vary: some may decline, and others may ask for an electrician's evaluation or a replacement plan, so ask the specific carrier early.
- The Massachusetts FAIR Plan provides basic property insurance on eligible property for applicants who couldn't get coverage in the voluntary market.
- Get a licensed electrician's written quote before you list, then choose whether to fix, price around, or clearly disclose the wiring.
- In triple-deckers and two-families, document the wiring unit by unit, since an insurer or lender may ask about each one.
Why can knob and tube wiring threaten a home sale in Boston?
Because the buyer's lender needs proof of insurance, and some carriers hesitate on active knob and tube. The chain reaction works like this. Your buyer signs a Purchase and Sale Agreement and moves into underwriting, and the lender requires proof of homeowners insurance before releasing funds. The buyer calls an insurance agent, who will often ask what type of wiring the house has.
If the answer is active knob and tube, underwriting practices vary by carrier. Some may decline, and others may ask for an electrician's evaluation or a plan to replace the wiring. The only way to know is to ask the specific carrier early. Much of the housing stock in these neighborhoods was built long before modern wiring standards, so it's a question worth answering before you list.
What happens when a buyer can't get insured before closing?
If the buyer's first carrier says no, the buyer has to find another one, and that search can eat into the time left before closing. Lenders also check the property itself: Fannie Mae's Selling Guide, for example, requires repairs of deficiencies that affect the safety, soundness, or structural integrity of a home before a loan with those deficiencies can be sold to Fannie Mae, and an appraiser who isn't qualified to judge a condition can make the appraisal subject to an inspection by a qualified professional.
The frustrating part is timing. The home inspector documents the wiring, but the insurance conversation often doesn't happen until the buyer is deep into mortgage underwriting.
What is the Massachusetts FAIR Plan?
The Massachusetts FAIR Plan, run by the Massachusetts Property Insurance Underwriting Association (MPIUA), provides basic property insurance on eligible property for applicants who couldn't get coverage in the voluntary market. Premiums and terms differ from a standard policy, so a buyer who ends up there should get a quote early and share it with their lender, since the cost feeds into the monthly payment.
How Much Does It Cost to Fix Old Wiring Before Selling?
The cost depends on square footage, the number of units, how much of the wiring is still original, and whether the electrical panel also needs an upgrade. The only way to get an accurate number is a walkthrough with a licensed electrician who can assess your specific panel, wiring runs, and any past partial upgrades. Get that written quote before you list, even if you decide not to do the work, and plug it into a net proceeds estimate to see how each option changes what you walk away with.
Should You Fix, Price Around, or Disclose Old Wiring?
The right approach depends on your price point, current demand in your neighborhood, and how much cash flexibility you have before listing. There's no universal right answer, but there is a wrong one: staying silent and hoping the buyer's insurance agent doesn't ask the question.
Fixing the wiring before listing makes the most sense when a full rewire fits your budget. A documented rewire with permits removes one question from the buyer's insurance and lending process.
Pricing around the issue works when you'd rather sell as-is and let the price reflect the buyer's future rewire cost. That adjustment should be grounded in the electrician's quote and in comparable sales.
Disclosing clearly and letting the buyer factor it into their financing plan works well when you're selling to an investor or a buyer already planning to renovate. Buyers who learn about a problem late tend to renegotiate or walk; buyers who knew upfront can plan for it.
Why are wiring issues more complicated in a Boston multi-family?
Because the wiring often differs from unit to unit. Triple-deckers and two-families across Jamaica Plain, Dorchester, and Roxbury often accumulated partial rewiring over decades, unit by unit. A common pattern: the top-floor unit was rewired during a renovation, the middle unit still has original knob and tube, and the ground-floor unit has a mix because a previous owner started a project and stopped. An insurer or lender may ask about each unit, so documentation by unit helps.
FAQ
How do I know if my house has knob and tube wiring?
Look for round ceramic knobs anchoring wires to joists and ceramic tubes where wires pass through framing, typically visible in an unfinished basement or attic. A licensed electrician can confirm it, including whether a past partial upgrade left some rooms or units on the original system.
Can a home sale actually fall through because of wiring?
It can. If a buyer can't get a homeowners policy their lender accepts before the closing date, the lender won't fund the loan, and the closing can be delayed or the deal can fall apart.
Do I have to disclose old wiring when selling in Massachusetts?
Massachusetts has no general seller disclosure form, but you can't misrepresent a known condition if a buyer asks, and Massachusetts licensing rules (254 CMR 3.00) give a listing agent acting as a designated agent an affirmative obligation to disclose known material defects. Ask your attorney what applies to your sale.
Is the Massachusetts FAIR Plan a good option for buyers?
It's a legitimate source of basic property insurance for owners who couldn't get coverage in the voluntary market. Whether it fits depends on the quote and on whether the buyer's lender accepts the policy, so buyers should check both early.
How much does it cost to rewire a triple-decker in Boston?
It depends on how much original wiring remains in each unit and whether the panels need upgrading. A written quote from a licensed electrician before listing gives you the real number for your property.
Does a partial rewire solve the insurance problem?
It may help, but carriers differ on whether any active knob and tube is acceptable. Ask the buyer's carrier, or your own, before assuming a partial rewire is enough.
What should a buyer ask the insurance agent first?
Whether the wiring is active or abandoned in place, and if it's active, whether the carrier will write the policy, on what conditions, and what documentation it needs before the closing date.
Should I rewire my home before listing it, or let the buyer handle it?
It depends on your price point, your budget, and current demand on your block. Rewiring before listing removes a question from the buyer's insurance process, while pricing around the issue preserves cash but needs a price adjustment backed by real comparable sales. Juan Murray can walk through both options with you; see selling your Boston home.
The bottom line: find out what wiring your Boston home has and get an electrician's written quote before you list, so insurance questions don't surface late in your buyer's underwriting.
Sources
- Fannie Mae Selling Guide B4-1.3-06, Property Condition and Quality of Construction of the Improvements: https://selling-guide.fanniemae.com/sel/b4-1.3-06/property-condition-and-quality-construction-improvements
- Massachusetts Property Insurance Underwriting Association (Massachusetts FAIR Plan): https://www.mpiua.com/
- 254 CMR 3.00 (Massachusetts real estate licensee conduct): https://www.law.cornell.edu/regulations/massachusetts/254-CMR-SS-3.00
Have questions? Let's connect.
About Juan Murray
Juan Murray is a Boston broker associate with more than 30 years of experience helping buyers, sellers, and investors across Greater Boston, personally leading every transaction from the first conversation through closing.
RE/MAX Real Estate Center · (978) 581-0801
Equal Housing Opportunity. Juan Murray is licensed as a Broker in Massachusetts, regulated by the Massachusetts Board of Registration of Real Estate Brokers and Salespersons. This article is general information only and does not constitute legal, tax, or financial advice. Confirm your specific costs and obligations with your closing agent, tax advisor, or lender.
