Does a new roof lower your home insurance in Michigan? Often, yes. Roof age and condition are among the factors many carriers use to price a home, and a new roof can earn a lower rate or qualify you for a better program. But it only counts if your insurance company has the new roof year on file, and it's easy to forget to tell them.
The short version: After a reroof, send your agent the contractor's invoice, then check that your declarations page shows the new roof year. If your current company won't give you credit for it, a new roof is one of the best times to compare carriers, because you now look like a better risk than you did last year.
Why your roof matters so much to your premium
Michigan law lists the factors home insurers may use to classify risks, including the construction of the structure and repairable structural defects, and lets them use additional filed factors and discount plans that reflect expected differences in losses (MCL 500.2111 and 500.2110a). In practice, many carriers use roof age and roof material to price a home, and some use it to decide which of their programs you qualify for.
Michigan also limits how far an insurer can go. Under the state's Essential Insurance Act, rules for turning down, dropping or limiting coverage on an owner-occupied home based on physical condition must be objective, directly related to the perils insured, and based on a code, a manufacturer's specification or standards of similar specificity, "without regard to the age of the structure" (MCL 500.2117). That governs whether an insurer can decline, non-renew or limit coverage. It does not stop roof age from affecting your price.
Your declarations page may still say your old roof
This is the detail that costs people money. Some carriers settle roof claims on a schedule tied to roof age, and at least some policy forms calculate that age from the "year roof installed" on your declarations. If the dec page still shows 2006, the policy may treat a brand-new roof like a 20-year-old one, both when it prices the policy and when it pays a claim.
Separately, some policies carry an endorsement that settles wind and hail damage to roof surfacing at actual cash value. ISO's version, HO 04 93 (several editions since 1999), has no age schedule and generally stays on the policy until it is removed, even after a new roof. Companies handle roofs differently. Some pay replacement cost for roof damage, some pay actual cash value, and some use a payment schedule based on roof age. We represent companies of all three kinds, so when you reroof we check how your policy settles roof claims and make sure your declarations show the new roof. A new roof can also open the door to a company that pays replacement cost on the roof, if you're on an actual cash value or scheduled roof today.
What to send your agent after a reroof
- The contractor's invoice showing the completion date and the scope: full tear-off or a layer over the old roof.
- The material. Architectural asphalt, metal or impact-resistant shingles. If you chose impact-resistant shingles, include the rating.
- The permit and final inspection, if your city or township required one. Permit rules vary by city and township; some require one for any reroof, others only when decking is replaced.
- Any other updates done at the same time, such as new gutters, ventilation or ice-and-water shield.
Then check your next declarations page. If it still shows the old roof year, call.
Impact-resistant shingles and Michigan discounts
Michigan does not require insurers to discount impact-resistant roofs. Many carriers offer a credit voluntarily, and the amount varies by company. Bills introduced in the Michigan Senate in July 2026 would require a discount starting with 2028 policies, but only for roofs certified to the IBHS FORTIFIED standard, a whole-roof construction certification rather than a shingle impact rating; a Class 4 shingle alone would not qualify. As of this writing those bills are in committee and are not law.
Aerial images and old roofs
Insurers increasingly review roofs with aerial imagery. Michigan's insurance regulator has said that "mere cosmetic roof issues, such as discoloration or streaking, are not valid grounds for policy cancellation or nonrenewal" (DIFS Bulletin 2025-12-INS) and that homeowners should be able to challenge the images. A new roof, documented with your insurer, is the cleanest answer to any aerial-image question. Our post on what to do about a non-renewal notice covers what happens if it reaches that point.
Frequently Asked Questions
Does a new roof lower homeowners insurance in Michigan?
Often, yes. Many carriers price homes partly on roof age and material, so a new roof can lower your rate or qualify you for a better program. How much depends on the company. Your insurer has to have the new roof year on file, so send your agent the contractor's invoice after the work is done.
Do I need to tell my insurance company I replaced my roof?
You should. Some policies price and settle roof claims based on the roof year shown on your declarations page. If it still shows your old roof, you may be paying for, and covered as if you had, an old roof. Send your agent the invoice and check the next declarations page.
Does Michigan require a discount for impact-resistant roofs?
No. Many carriers offer one voluntarily. Bills introduced in 2026 would require a discount for roofs certified to the IBHS FORTIFIED standard starting with 2028 policies, but they were in Senate committee as of this writing and are not law.
Can a Michigan insurer drop me because my roof is old?
Michigan law limits how insurers can turn down or drop an owner-occupied home. Condition-based rules must be objective, related to the perils insured, and based on a code, manufacturer specification or similar standard, "without regard to the age of the structure." The law doesn't mention roof age specifically, and an insurer can still act on a roof's documented condition. The state regulator has said cosmetic discoloration or streaking is not valid grounds to cancel or non-renew.
Should I shop my insurance after getting a new roof?
It is one of the best times to. A new roof can change which programs and companies you qualify for, and the company that priced your old roof may not be the most competitive for your new one. An independent agent can compare several carriers at once.
The bottom line
You just spent real money on your roof. Make sure your insurance gives you credit for it, and know exactly how your policy would pay for it if a storm took it.
J. Jacobs & Associates is an independent agency in Lake Orion that has insured Michigan homes for more than forty years. We represent more than ten preferred personal lines carriers, so after a reroof we can update your current policy and compare it against companies that reward a new roof. Send us your roofing invoice and your current declarations page, or call (248) 693-6455. You can also start a homeowners quote and upload your dec page there. See also how much homeowners insurance costs in Michigan.