The short answer
Repair when the damage is localized, the roof has more than about 5 to 7 years of life left, and the repair cost is under roughly 25 percent of replacement. Replace when damage is widespread, the roof is past about 18 years in Texas sun, or you are repairing the same roof repeatedly.
Side by side
| Factor | Repair | Replacement |
|---|---|---|
| Typical cost here | $350 to $1,800 | $9,500 to $24,000 |
| Time on site | A few hours to a day | 1 to 3 days |
| Roof age that fits | Under 15 years | 15 years and up |
| Damage pattern | One area, one cause | Multiple areas or systemic |
| Warranty | Repair only, limited | Full manufacturer and workmanship |
| Insurance | Often under deductible | Usually the claimed scope |
Choose Repair if
- Damage is confined to one area such as a pipe boot, a valley or a section of flashing
- The roof is under about 15 years old and otherwise sound
- Shingles still flex rather than crack when lifted
- You have one leak, in one place, with one identifiable cause
- Repair cost is well under 25 percent of what replacement would run
Choose Replacement if
- Granules are shedding heavily across the whole roof
- Shingles are curling, cupping or cracking in multiple areas
- You have repaired leaks in three or more separate spots
- The decking is soft or showing daylight
- The roof is past about 18 years, which is realistic end of life in Hill Country heat
- You have storm damage an insurer has approved for replacement
What this looks like in the Hill Country
In the Hill Country there is an extra factor: hail frequency. A roof that is technically repairable but sits at year 16 in an active hail corridor will likely take another damaging event before a replacement would have been due anyway. That changes the math toward replacing on an approved claim rather than patching and waiting.
