Home insurance rates aren’t pulled out of thin air — insurers weigh a handful of specific factors when they calculate your premium. Understanding what goes into that number can help you make smarter decisions, whether you’re buying a new home, shopping for coverage, or just trying to lower your current bill. Here’s a closer look at the biggest factors, including one that trips up a lot of homebuyers: roof age.
1. Where Your Home Is Located
Location plays a bigger role in your premium than most people expect. If your home sits in an area with higher exposure to natural disasters — wind, hail, flooding, or wildfire — you’ll likely see that reflected in your rate. Insurers also look at how close you are to a fire station and fire hydrant, since faster emergency response can limit damage and reduce claim payouts.
2. Credit Rating
Your credit-based insurance score is another factor many people don’t think about when buying home insurance. In states where it’s allowed, a stronger credit history can help you qualify for a better rate, while a lower score can push your premium higher.
Every carrier weighs credit differently — along with everything else on this list — which is exactly why it pays to get quotes from multiple companies rather than assuming one insurer’s number reflects the market.
3. Roof Age (and Why It Matters More Than You Think)
Roof condition is one of the most overlooked factors in home insurance — and one of the most expensive to get wrong. Your roof is your home’s first line of defense against wind, hail, and water damage, so insurers pay close attention to how old it is and what it’s made of.
Here’s what to know:
- Age thresholds matter. Many carriers start applying stricter underwriting once a roof passes the 15–20 year mark, and some materials (like older asphalt shingles) age faster than others.
- Coverage can change, not just price. An aging roof doesn’t always just mean a higher premium. Some insurers will switch you from full replacement cost coverage to actual cash value (ACV) coverage on the roof specifically — meaning a claim would pay out the depreciated value of your roof, not the cost to replace it. Others may exclude roof claims from wind or hail damage altogether, or decline to write a new policy on a home with an older roof.
- Documentation helps. If your roof has been replaced or repaired, keep the paperwork — the contractor invoice, permit, or manufacturer warranty. Being able to show the actual install date (not just an estimate) can help you avoid being rated as if your roof is older than it is.
- A roof inspection before you buy can save you money later. If you’re house hunting, ask for the roof’s age and material before you fall in love with a home. A newer roof isn’t just a maintenance perk — it can directly affect what insurers are willing to offer and at what price.
- Small maintenance now avoids bigger problems later. Clearing debris, replacing missing shingles, and addressing minor leaks early can extend a roof’s usable life and keep it out of “high risk” territory with underwriters.
If you’re unsure how your roof’s age or condition might affect your policy, that’s a great first question to ask when you request a quote.
4. Overall Condition of the Home
Beyond the roof, insurers want to see a home that’s been well maintained. Updated wiring, plumbing, and HVAC systems all signal lower risk — older systems are more prone to failures that lead to claims, like electrical fires or burst pipes. If you’re buying a home with original systems from decades ago, expect that to factor into both your rate and, in some cases, your eligibility for certain coverage.
5. Claims History
Both your personal claims history and the claims history tied to the property itself (via the CLUE report) can affect your rate. A pattern of past claims — even from a previous owner — can make a home more expensive to insure, so it’s worth asking about a property’s claims history before you buy.
6. Deductible and Coverage Choices
The deductible you choose has a direct, immediate effect on your premium — a higher deductible generally means a lower monthly cost, but more out-of-pocket exposure if you file a claim. This is worth discussing with your agent rather than defaulting to whatever the quote tool suggests first.
Always Compare Multiple Companies
Buying a home is stressful enough without adding insurance shopping to the pile — but it’s worth the extra step. Rates and underwriting rules vary significantly from one carrier to the next, and shopping around can also help lower your overall mortgage payment, since your insurance premium is typically rolled into escrow.
When you’re going through the home-buying process, don’t settle for a quote from just one company. Comparing multiple carriers side by side is the best way to make sure you’re getting the right coverage at a fair price.
Contact MBG Insurance, an independent insurance agency, to easily compare home insurance options — including a closer look at how your roof’s age could be affecting your rate.
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Written and updated by Jordan Lair 8/26