Your roof has storm damage. The contractor says it can go either way — repair or full replacement. Your insurance adjuster has an opinion. Your neighbor got a whole new roof. Your brother-in-law says just patch it.
This is the most expensive decision you will make after a storm, and the wrong choice costs thousands. Here is the framework we use after 40 years of helping Michigan homeowners decide.
The Decision Matrix
Four factors determine whether you repair or replace:
Factor 1: Damage Extent
Repair zone (under 25% of total roof area):
If damage is confined to one slope or a defined area, and the rest of the roof is sound, repair is almost always the right call. Localized repair restores the damaged section without disturbing shingles that have years of life remaining.
Gray zone (25-40%):
This is where the decision gets harder. At this level, repair costs start approaching a significant fraction of replacement cost. Consider the other three factors carefully.
Replace zone (over 40%):
When damage spans multiple slopes or covers nearly half the roof, replacement is usually the better investment. Patching 40%+ of a roof creates inconsistencies in material age, color, and weathering.
Factor 2: Roof Age
| Roof Age | Condition Before Storm | Recommendation |
|---|---|---|
| 0-8 years | Good | Repair. Plenty of life remaining. |
| 8-15 years | Fair | Repair if damage under 30%. Evaluate replacement if damage is extensive. |
| 15-20 years | Aging | Lean toward replacement, especially if insurance covers it. |
| 20+ years | End of life | Replace. Repairs on an end-of-life roof are throwing money away. |
Factor 3: Insurance Coverage
Your policy type changes the math dramatically:
Replacement Cost Value (RCV): Insurance pays the full cost to replace your roof at current material prices. If the adjuster approves replacement, your out-of-pocket cost is only your deductible. In this scenario, replacement is often free or nearly free to you.
Actual Cash Value (ACV): Insurance deducts depreciation based on your roof’s age. A 15-year-old roof on an ACV policy might only receive 50-60% of replacement cost. This can make the out-of-pocket gap significant.
Key Michigan fact: If you have an RCV policy and the adjuster approves replacement, it almost never makes financial sense to choose repair instead.
Factor 4: Material Availability
Can the damaged shingles be matched?
- Current production shingles: CertainTeed Landmark, Owens Corning Duration, and other popular lines are readily available. Repair with matching materials is straightforward.
- Discontinued colors or styles: If your exact shingle is no longer manufactured, repair creates a visible color mismatch. This becomes an aesthetic and potentially a resale issue.
- Aged shingle weathering: Even if the same product is available new, it will not match the weathered color of your existing 10-year-old shingles. This is acceptable for non-visible slopes but noticeable on the front of the house.
The Real Cost Comparison (Michigan 2026)
Repair Costs
| Repair Type | Typical Cost | Timeline |
|---|---|---|
| 10-20 missing shingles | $300 – $800 | 1 day |
| One slope re-shingle | $1,500 – $4,000 | 1-2 days |
| Flashing repair | $200 – $600 | Half day |
| Emergency tarp + temporary | $200 – $500 | Same day |
Replacement Costs
| Material | Cost Range (2,000 sq ft roof) | Lifespan |
|---|---|---|
| 3-tab asphalt | $7,000 – $12,000 | 15-20 years |
| Architectural (CertainTeed Landmark) | $10,000 – $18,000 | 25-30 years |
| Premium (Owens Corning Duration) | $12,000 – $22,000 | 30+ years |
| Metal roofing | $18,000 – $35,000 | 40-60 years |
The Hidden Cost of Repeated Repairs
A pattern we see too often: homeowners choose repair three or four times on an aging roof, spending $2,000-$4,000 each time. After four repairs over six years, they have spent $8,000-$16,000 and still need a new roof.
Each repair:
- Has a minimum service charge ($300-$500)
- Creates additional seam points that can leak
- Uses materials of a different age than surrounding shingles
- Does not reset the clock on the underlying roof system
Our honest rule: If you have had two major repairs in five years, the next event should be a replacement.
How to Get the Best Outcome
- Get your own inspection before the adjuster visits
- Ask for both estimates — repair AND replacement — from your contractor
- Know your policy type (RCV vs ACV) before making decisions
- Factor in the age of your current roof, not just the damage
- Consider the upgrade opportunity — if insurance covers replacement, you can upgrade to premium shingles for a small additional cost
Frequently Asked Questions
Can I replace just one side of my roof?
Technically yes, but it creates a color mismatch and the two sides will age differently. Most contractors recommend full replacement if more than one slope needs work.
What if the adjuster says repair but my contractor says replace?
You can request a re-inspection, provide your contractor’s detailed assessment, or file a supplemental claim. Disagreements between adjusters and contractors are common and resolvable.
Does a new roof increase home value?
Yes. A new roof recoups 60-70% of its cost in home value according to national averages. In Michigan’s market, a new roof is often a deal-maker or deal-breaker for buyers.
Can I pocket the insurance money and do cheaper repairs?
With an RCV policy, the insurance company typically releases the final depreciation payment only after work is completed and documented. With ACV, you receive a lump sum and can choose how to use it.
Is it worth upgrading to impact-resistant shingles?
Class 4 impact-resistant shingles cost 10-20% more but may qualify for an insurance premium discount of 10-28%. Over the life of the roof, the discount often exceeds the extra cost.
Get an Honest Assessment
At Reasonable Roofing, we give you our honest recommendation — repair or replacement — based on what makes sense for your roof, your budget, and your insurance situation. We never push replacement when repair is the right answer.
Read our complete storm damage guide for the full process. For insurance help, see our claim filing guide. If you suspect hail damage, start with our hail damage identification guide.
Call (810) 984-3420 for a free assessment and honest recommendation.