Roof Repair vs. Replacement: How to Decide and What It Costs

When to Repair vs. Replace

Repair makes sense when: Damage is isolated (storm damage to a section), roof is under 15 years old, damage affects less than 25–30% of the total roof area, no signs of systemic failure (widespread shingle curling, granule loss, deck damage), and the expected remaining life justifies the repair investment.

Replace when: Roof is 20+ years old (asphalt shingle), damage is widespread, multiple leaks in different areas, shingles are curling or losing granules broadly, there's visible daylight through the roof deck, or repair cost exceeds 50% of replacement cost.

Repair Costs (2026)

Minor shingle replacement (10–20 shingles): $150–$500
Flashing repair: $200–$600
Valley repair: $300–$1,500
Small section replacement (under 10% of roof): $500–$2,000
Leak repair (single): $300–$1,500 depending on cause and access

Full Replacement Costs (2026)

3-tab asphalt shingles: $3.50–$5.50/sq ft installed. 25-year rated lifespan.
Architectural/dimensional shingles: $4.50–$7.00/sq ft. 30–50 year rated. Standard upgrade choice.
Metal roofing: $8–$20/sq ft. 50+ year lifespan. Higher upfront, lower lifetime cost.

The "False Economy" of Repeated Repairs

For aging roofs (15–25 years), repeated $500–$1,500 repairs on a roof that will need replacement within 3–5 years often costs more than replacing sooner. Calculate: if you're spending $1,000/year on repairs and replacement costs $12,000, you're 12 years in — that's a reasonable break-even if the roof has 10+ years left. If it has 3 years left, replace now.

Frequently Asked Questions

Can I repair over existing shingles (overlay)?

Many jurisdictions allow one layer of overlay shingles over existing. This costs 15–25% less than tear-off replacement. However, overlaying hides potential deck damage from inspection, adds weight to the structure, reduces new roof lifespan by 10–20%, and is prohibited by some manufacturers (voiding warranties). Most roofing pros recommend tear-off for the best long-term result.

Does homeowner's insurance cover roof replacement?

Insurance covers sudden, accidental damage from covered perils (wind, hail, falling trees). It typically does not cover general wear and age deterioration. Policies increasingly use Actual Cash Value (ACV) instead of Replacement Cost Value (RCV) for older roofs — ACV depreciates the payout based on roof age. Review your policy carefully; ACV for a 20-year-old roof might pay only 20–40% of replacement cost.