Roof Repair vs Replacement — When to Replace Your Roof
Repair if damage is localized (under 30% of the roof), the roof is under 15 years old, and the structure is sound. Replace if the roof is 20+ years old, has widespread damage, multiple active leaks, sagging decking, or repair costs exceed 30% of replacement. Repair costs $150-$3,000 vs replacement at $5,000-$15,000+.
Cost Breakdown
| Service | Low | High | Notes |
|---|---|---|---|
| Minor repair | $150 | $500 | Missing shingles, small leaks |
| Moderate repair | $500 | $1,500 | Flashing, valley repair |
| Major repair | $1,500 | $3,000 | Significant area |
| Full replacement (asphalt) | $5,000 | $15,000 | Standard home |
| Full replacement (metal) | $10,000 | $25,000 | Premium option |
Repair or Replace Your Roof?
The 30% Rule
If the repair area exceeds 30% of the total roof, replacement is usually more cost-effective. Patching a majority of the roof means mismatched shingles, inconsistent wear, and likely needing full replacement within a few years anyway.
Repair When
- Damage is localized (a few missing shingles, one leak point)
- Roof is under 15 years old
- Repair cost is under $1,500
- Decking underneath is solid
- No widespread granule loss or curling
- Storm damage in one area (insurance may cover)
Replace When
- Roof is 20-25+ years old (asphalt shingles)
- Multiple leaks in different areas
- Widespread shingle curling, cracking, or granule loss
- Sagging decking or visible structural issues
- Previous repairs have failed
- Repair costs exceed 30% of replacement cost
- You are selling the home (new roof adds 1-6% value)
Related Questions
Can a roof be repaired instead of replaced after a storm?
Often yes, if storm damage is localized. Insurance adjusters assess whether repair or replacement is warranted. If hail or wind damaged more than 30% of the roof area, insurance typically approves full replacement. Get an independent roofer's assessment too.
Does a new roof increase home value?
Yes — a new roof adds 1-6% to home value and has one of the highest ROIs of any home improvement (60-70% cost recovery at resale). Homes with new roofs also sell faster and attract better offers.
How many times can a roof be repaired?
There is no limit, but repeated repairs on an old roof become throwing good money after bad. If you have had 3+ repairs in 5 years, the roof is telling you it needs replacement. Each repair also creates potential failure points at seams and patches.