Insurers care less about how old your house is than about how old its insides are. A 1925 bungalow with a new roof, modern wiring and copper pipes can be easier to insure than a 1975 house that still has its original electrical panel and roof. The year built gets you a higher starting price; the four big systems decide whether you get a quote at all.
That starting price is real, though. In MoneyGeek’s October 2026 analysis, homes in its oldest age group averaged $174 a month for basic coverage against $103 for newer homes, about 69% more, and the gap widens as the coverage amount rises. At $250,000 of dwelling coverage, the gap was $1,683 a year. The good news is that a large part of that gap is within your control.
Last reviewed: October 2026 · SmartCoverage Editorial Team · How we research
See your house the way an underwriter does
Tap the answer that fits for each system. The result shows how insurers are likely to react and what to fix first.
A simplified guide based on what insurers commonly ask about older homes. Each insurer and state has its own rules. For guidance only.
The four systems every insurer asks about
Underwriters for older homes often request what is called a four-point inspection, especially in Florida and for homes around 30 years or older. It covers the roof, electrical, plumbing and heating and cooling. Knowing what they will look for lets you fix the right thing first.
Roof
The roof is the most common reason older homes face higher prices or refusals, because it is the main defense against wind, hail and water. Many insurers become cautious once a roof passes about 20 years, and some pay roof claims on older roofs at actual cash value, so you receive only a depreciated share of the replacement cost. Florida law bars insurers from refusing or non-renewing a policy solely because of roof age if the roof is under 15 years old, and older roofs can still qualify if an inspection shows at least five years of useful life left.
Electrical
Knob and tube wiring, common in homes built before about 1950, has no ground wire and insulation that can crumble with age. Many insurers will not write a policy while it is in use. ABC7 reported in 2025 that brokers in the San Francisco Bay Area were seeing applications declined simply for listing it. Fuse boxes and certain older breaker panels raise similar concerns. Rewiring is expensive, but no single upgrade opens more doors.
Plumbing
Galvanized steel pipes corrode from the inside, and polybutylene, a gray plastic pipe used from the late 1970s to the mid-1990s, is known for sudden failures. Water damage is one of the most frequent homeowners claims, so insurers check what your pipes are made of. Replacing them, or showing that the supply lines have been replaced, makes a measurable difference.
Heating and cooling
An aging furnace is less of a worry than how the house is heated. Wood stoves as the main source of heat, unvented space heaters and buried oil tanks all lead to extra questions. Keep service records for whatever system you have.
The rebuilding problem nobody mentions
Even when everything is up to date, older homes create a coverage problem that newer ones do not. A standard replacement cost policy promises to rebuild with materials of like kind and quality. For a house with plaster walls, hand-carved trim, slate roofs or old-growth hardwood floors, that can cost far more than the house would sell for, and insurers know it.
Insurers handle this in different ways, and it is worth understanding which one you are being offered:
- Full replacement cost rebuilds with materials matching the original. It gives the most protection and costs the most; for a historic home, it is often what you want.
- Functional replacement cost rebuilds with modern materials that do the same job, such as drywall instead of plaster. The premium is lower, and the house will look different afterward.
- HO-8 policies, a form designed for older homes, usually pay repair costs using common materials or actual cash value and cover a narrower list of causes of damage. They exist for homes that cannot get a standard policy and are a last resort rather than a bargain.
Whichever you choose, add ordinance or law coverage. When an older home is badly damaged, local codes often require the rebuild to meet current standards: new wiring, egress windows, insulation, sprinklers. Standard policies cover this only up to a limit, often 10% of the dwelling amount, and that can run out quickly. Our guide to what homeowners insurance covers explains this and other limits.
Which insurers to try
Prices for older homes vary more between companies than prices for new ones. In MoneyGeek’s data, CSAA (a AAA insurer) had the smallest gap between newer and older homes, $473 a year, while Progressive and Nationwide charged older homes more than double what they charged newer ones. For homes built between 1980 and 2010, AIG, Amica, CSAA and AAA had the lowest average premiums.
For a well-kept historic home of high value, high-net-worth insurers such as Chubb and AIG’s private client group are built for this market and often offer full replacement cost with matching materials. Our guide to high-value home insurance covers them in more detail. For more ordinary older homes, start with the large insurers in our ranking of the best homeowners insurance companies, then add a regional company and an independent agent who knows which local insurers accept older properties.
If you are refused everywhere, the usual cause is one specific system. Fixing that system, then reapplying with proof, usually works better than accepting the first expensive offer. Your state’s FAIR plan is a fallback, not a long-term answer.
Small upgrades that insurers notice
Not every improvement has to be a major project. Several inexpensive changes reduce the risks insurers worry about most in older homes, and many companies give a discount for them or at least treat the house more favorably at underwriting.
Water leak sensors and an automatic shutoff valve address the most expensive everyday risk in old plumbing. A monitored smoke and fire alarm helps with older wiring, and some insurers discount it. Replacing old washing machine hoses with braided steel ones costs little and prevents a classic claim. Clearing gutters, trimming branches over the roof and sealing gaps around chimneys all make the next inspection go better. Mention each one when you request quotes; insurers do not always ask.
Before you buy an older house
Many buyers find out about an insurance problem a week before closing, when the lender asks for proof of coverage. You can avoid that with a little work during your inspection period.
The cheapest moment to solve an insurance problem with an older house is before you own it. During the inspection period, ask the seller for the age of the roof and the dates of any rewiring, replumbing or heating replacement, ideally with receipts, and ask your home inspector to note the panel type, wiring and pipe materials in writing. With that report in hand, get two or three insurance quotes before you remove the inspection contingency.
If an insurer makes an upgrade a condition of coverage, such as removing knob and tube wiring, price it and bring that figure to the negotiation with the seller. And if the house sits in a historic district, check the rules on materials early, because they can raise rebuilding costs and, with them, the coverage you need.
If the upgrades are large, ask your lender about a renovation mortgage, which can fold their cost into the loan. And once you own the house, bring the insurer every receipt: an update that the insurer does not know about does not lower your price.
This guide gives general information, not personal insurance, legal or financial advice. Underwriting rules vary by insurer and state. Speak to a licensed agent about your home.