We've walked thousands of roofs across West Michigan, and here's what we tell every homeowner at the ladder: the goal isn't to sell you the biggest project. It's to protect your home for the least money that still solves the problem. Sometimes that's a $500 flashing repair. Sometimes it's a full replacement. The trick is knowing which situation you're actually in, and age alone never answers it. You have to read the roof, not the calendar, because "how old is it" matters less than how it was built: the system under the shingles, the building science of the house, and the technique of the installation decide how a roof ages here. That's why we replace five-year-old roofs built cheap and repair twenty-year-old roofs built right.
Work through the framework below before you commit to a big check either way.
Repair or Replace? Start Here
Run your roof against these six factors. If most point one direction, you have your answer. If they're split, that's exactly when a professional inspection pays for itself.
| Factor | Lean Repair | Lean Replace |
|---|---|---|
| Roof Age | Well inside its service life and otherwise healthy | Within roughly five years of the end of its expected life |
| Damage Extent | Isolated: a few shingles, one leak, one detail | Widespread across multiple slopes, or leaks in different rooms |
| Shingle Layers | One layer over a sound deck | Already two layers (Michigan code caps a roof at two) |
| Deck Condition | Plywood or OSB is dry and solid | Soft spots, rot, or sagging from long-term moisture |
| Leak History | First leak, clearly traced to one spot | Repeat leaks or ice dam damage surfacing in new places |
| Cost Math | Repair is a small fraction of replacement | Roof is near end of life and repair exceeds ~25% of a replacement |
How Old Is the Roof, Really?
Age is the first filter because it sets the ceiling on everything else, but the number that matters is remaining life, not birthdays. An architectural shingle roof we design and install today realistically delivers 25 to 35 years in West Michigan, because the system under it, ventilation, ice and water shield, new flashing, is built to carry it there. A bargain install of the same shingle can be showing real wear at 15 to 20. So two roofs of identical age can be a decade apart in remaining life, and that's the number the decision runs on.
If your roof is comfortably inside its service life and the damage is contained, a targeted repair almost always makes sense; tearing off a healthy roof throws away years you already paid for. Once a roof is inside roughly its last five years, the math shifts: even a fixable problem sits in a field of brittle shingles and released sealant strips, and the next failure is usually a season or two behind this one. Not sure of your roof's age or condition? Check closing paperwork or permit records, or just have us look. We can usually date a roof within a few years from the shingle profile and wear pattern.
How Much of the Roof Is Damaged?
Location and scope matter more than the raw count of shingles. One damaged valley, a leaking pipe boot, or a strip of shingles torn loose in a windstorm is a classic repair: isolated, traceable, and affordable to fix before it spreads. Most of our repairs carry a 10 to 15 year warranty for exactly that reason; a properly repaired detail is fixed, not patched.
Damage becomes a replacement conversation when it spans multiple slopes, when hail has fractured shingles across the whole field, or when leaks keep surfacing in different rooms. At that point you're not fixing a detail. You're chasing a pattern, and every repair dollar is a down payment on a replacement you're already going to make.
A good rule of thumb: if one storm hit one area, think repair. If the roof is failing from age in several places at once, think replacement.
Layers and Deck Condition
Layers are a hard limit, not a preference. Michigan Residential Code Section R908.3.1.1 caps a roof at two layers of shingles. If you already have two, a tear-off is the only compliant path. And if you have one layer and someone offers to shingle over it to save money, hear our honest take before you sign: a shingleover still costs about 75 percent of a full replacement, lasts maybe 50 to 75 percent as long, is nearly impossible to do correctly over architectural shingles, and we can't put any warranty on one. We actively talk people out of them, because the cheap new roof is the most expensive roof sold.
The deck, the plywood or OSB under the shingles, is the part homeowners never see and roofers care about most. Years of small ignored leaks or ice damming soak it until it softens or rots, and once the wood fails, no surface repair holds, because there's nothing solid to fasten into. Spongy spots, sagging between rafters, or daylight in the attic all point at the deck, and that usually tips the decision toward replacement, where rotted sections get cut out and rebuilt as part of the job.
This is also why we check the attic on every inspection. The top of the roof tells half the story. The underside tells you whether the structure is still worth building on.
Run the Cost Math
Money is where it all comes together, so here are our real numbers. Repairs at Stellar Roofing Company carry a $500 minimum, most common repairs land in the $1,500 to $3,500 range, and major work runs $4,000-plus. A full replacement depends entirely on the roof: as worked examples, a simple 22-square ranch runs roughly $12,000 to $16,000 in architectural asphalt, and a steep, cut-up 28-square colonial roughly $18,000 to $26,000.
Here's the rule of thumb we use, and honest context for it. When a roof is inside roughly its last five years of expected life, we generally recommend replacement once the repair cost exceeds about 25 percent of what a replacement would cost. The industry uses versions of this same rule with thresholds anywhere from 25 to 50 percent; ours sits at the conservative end precisely because we only apply it when the roof is already near the end, where a big repair buys back the least life. A $3,500 repair on a roof with two years left is renting protection at a brutal rate. The same $3,500 on a twelve-year-old roof with fifteen years ahead of it is money well spent.
And the honest disclaimer that belongs next to any rule of thumb: it's a starting point, not a verdict. Every roof is unique, and so is every homeowner's budget, timeline, and expectations. We're roofers, not financial advisors, and we don't coach anyone on their finances. What we do is put real numbers for both paths in front of you, with photos of why, so the decision is genuinely yours. See our roof repair cost breakdown for the full local pricing.
Signs It's Repair vs. Replace
When you're standing in the driveway squinting at your roof, these are the tells that push each way.
Usually a Repair
- A single leak traced to one flashing, vent, or valley
- A handful of shingles blown off in a Lake Michigan windstorm
- Storm damage confined to one slope or one area
- Cracked pipe boots or worn sealant around penetrations
- Minor granule loss on an otherwise young roof
- One failed detail on a roof that's otherwise sound
Usually a Replacement
- A roof inside its last five years with shingles curling or brittle
- Bald spots where granules have washed into the gutters by the handful
- Two layers of shingles already on the deck
- Daylight, rot, or sagging visible in the attic or roofline
- Recurring leaks that keep showing up in new places
- Repeated ice dam damage along the eaves every winter
Still Not Sure? Don't Guess. Get Eyes On It
The truth is, the deciding factors, deck condition, hidden rot, the real layer count, how far a leak has traveled, can't be judged from the ground, which is why we never make this call over the phone. We get on the roof and into the attic and document what's actually there. And this is genuinely our home turf: this company was built repairing roofs before it grew into everything else, so diagnosing exactly what a roof needs, and what it doesn't, is the thing we've done longest.
Our inspection is free, with no pressure attached. If your roof has good years left, we'll say so and point you to the repair. If it's genuinely time, we'll show you the photos and the reasoning so you're deciding on evidence, not a pitch. If it's a repair, we say repair.
A full replacement usually wins when:
- The roof is inside roughly its last five years
- Damage spans multiple slopes
- There are already two shingle layers
- The deck is soft, rotted, or sagging
- Leaks keep returning in new spots
- Repair costs exceed about 25 percent of replacement on a roof near its end
Want a straight answer for your home? Book a free roof inspection or call or text (616) 840-1927. Explore our roof repair and roof replacement services to see what each involves.
Schedule Your Free Roof InspectionRelated Roofing Resources
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A free, no-pressure inspection to settle the question.
Learn MoreRepair or Replace Questions
Is it cheaper to repair or replace a roof?
In the short term, repair almost always: most of ours land between $1,500 and $3,500 against replacements that start around $12,000 for a simple ranch. Over time it depends on remaining life. Our rule of thumb: when a roof is inside roughly its last five years, we recommend replacement once a repair exceeds about 25 percent of replacement cost, because at that point you're paying real money for very little remaining protection. The industry's versions of this rule run 25 to 50 percent; ours is the conservative one. Either way, the decision is yours, and we'll price both paths honestly.
At what age should a roof be replaced in Michigan?
There's no single age, because installation quality moves the number by a decade. An architectural shingle roof we install today, over a proper system, realistically delivers 25 to 35 years here, while a bargain install of the identical shingle can be done at 15 to 20. That's why we read the roof, not the calendar: brittleness, granule loss, sealant release, and the attic tell us where a roof actually is in its life, whatever the paperwork says.
Can I put a new roof over my old shingles?
Michigan Residential Code Section R908.3.1.1 allows a maximum of two layers, so with two existing layers a tear-off is legally required. But even where a shingleover is technically legal, we'll talk you out of it: it still costs about 75 percent of a full replacement, lasts maybe half to three-quarters as long, is nearly impossible to do correctly over architectural shingles, and we can't warranty one. A tear-off lets us inspect the deck, fix the ventilation, and give you a roof with three warranties behind it instead of zero.
How do I know if my roof deck is damaged?
The deck is the plywood or OSB under the shingles, and it usually announces damage as spongy or soft spots, sagging between rafters, water stains or daylight in the attic, or a roofline that dips. Because these signs live under the surface, we check the attic on every inspection; the underside of the deck tells us whether a surface repair will actually hold or whether the structure needs rebuilding as part of a replacement.
Will insurance cover a roof repair or replacement?
It depends on the cause. Homeowners policies generally cover sudden, accidental damage, wind, hail, falling limbs, not gradual wear and age, and the difference between the two is exactly what a proper inspection establishes. Our inspectors are Haag certified for hail and wind damage, the field methodology insurance adjusters are trained on, so we document what happened with test squares and photos, write the scope, and meet your adjuster on the roof to walk through it. We'll also tell you honestly when damage is wear rather than a storm, because a claim that shouldn't be filed helps no one.
Do you offer free roof inspections in West Michigan?
Yes. Stellar Roofing Company provides free, no-pressure inspections across Grand Rapids, Holland, Ada, Hudsonville, Rockford, Grand Haven, and the surrounding lakeshore communities. We get on the roof and into the attic, photograph what we find, and give you an honest repair-or-replace recommendation with the evidence to back it up. Call or text (616) 840-1927 or schedule online.