If you own a home in Mount Pleasant, Charleston, or anywhere along the South Carolina coast, your roof’s age may matter more to your insurance company than almost anything else about your property. Many coastal carriers now treat a roof over 15 to 20 years old as an unacceptable risk, and if yours crosses that line at renewal, a non-renewal notice can follow, even if the roof looks fine from the ground. Here’s what’s driving this, and what to do about it.
Why Roof Age Has Become Such a Big Deal
Coastal South Carolina property insurance has gotten significantly more expensive to underwrite over the past several years. Rising rebuild costs, more frequent hurricane activity, and heavy claims losses have pushed a number of national carriers to pull back or tighten their appetite for coastal risk. Roof age is one of the clearest, most measurable risk factors an insurer can screen for; an older roof is statistically far more likely to fail during a wind event and generate a large claim.
The Rough Age Thresholds Carriers Use
Thresholds vary by carrier, but a general pattern has emerged across coastal South Carolina:
- 15 years: Many carriers begin flagging the policy for review at renewal.
- 15-20 years: Some carriers will still write or renew the policy, but only with wind/hail coverage excluded or a roof-specific endorsement, often an actual cash value (ACV) roof settlement instead of full replacement cost.
- 20+ years: Non-renewal becomes common regardless of the roof’s visible condition, unless it’s been replaced or a recent inspection documents its remaining life.
These are general patterns, not universal rules; your specific carrier’s guidelines matter more than any rule of thumb.
What “ACV Roof Settlement” Actually Means
If your policy shifts to an ACV (actual cash value) roof settlement because of roof age, it means a future roof claim will be paid out based on the roof’s depreciated value, not the cost to replace it today. On an older roof, that gap can be substantial, sometimes leaving you responsible for thousands of dollars out of pocket even though you have “coverage.”
What to Do Before You Get a Non-Renewal Notice
- Know your roof’s actual age and material. Architectural shingles, 3-tab shingles, and metal roofing all have different expected lifespans and carrier treatment.
- Get a roof certification if you’re approaching the 15-year mark. A licensed roofer’s inspection documenting the roof’s remaining useful life can sometimes keep a policy on full replacement cost coverage.
- Ask your agent to shop the market before renewal, not after a non-renewal notice. It’s far easier to place coverage proactively than to scramble after a carrier has already dropped you.
- Budget for roof replacement as an insurance decision, not just a maintenance one. On coastal SC homes, a new roof often pays for itself in improved insurability and lower premiums.
If You’ve Already Been Non-Renewed
A non-renewal isn’t the end of the road. The surplus lines (excess and surplus, or E&S) market exists specifically for homes that standard carriers have declined, and coverage is available, typically at a higher premium and sometimes with a higher deductible, but it keeps you insured while you plan next steps, such as a roof replacement that can move you back into the standard market at your next renewal.
Frequently Asked Questions
Will insurance really not cover my house because of an old roof?
It’s usually not that your house becomes completely uninsurable, it’s that fewer carriers are willing to write it, and the ones that will often limit coverage to an ACV roof settlement or charge significantly more. In more severe cases on very old roofs, some carriers will decline or non-renew outright.
Does a roof over 20 years old automatically mean non-renewal?
Not automatically, but it’s common. A recent roof certification or partial roof replacement can sometimes preserve full replacement cost coverage even on an older roof.
How do I find out what my current carrier’s roof age policy is?
Ask your agent directly, since these thresholds aren’t usually published and vary by carrier. We track this across the carriers we place coastal SC homes with and can tell you where you stand.
Is it worth replacing my roof before it fails just for insurance purposes?
Often, yes. A new roof frequently unlocks better carriers, lower premiums, and full replacement cost coverage, and coastal SC homeowners often recover part of that cost through insurance savings over a few years.
If you’re not sure where your roof’s age puts you with your current carrier, or you’ve received a non-renewal notice and need to place coverage quickly, we shop 25+ carriers to find the right fit. Learn more on our Home Insurance page, or call us at (843) 471-2621.