The answer to 'difference between shingle replacement' is that shingle replacement involves fully replacing all the shingles on your roof, while shingle repair only addresses specific damaged or missing shingles. Shingle replacement is a more comprehensive solution that provides a brand new roof, while shingle repair is a more targeted and cost-effective option for minor issues.
The main benefits of shingle replacement are a longer lifespan for your roof (typically 20-30 years), improved aesthetic appeal, and better protection against leaks and weather damage. Shingle repair, on the other hand, is a good choice if you only have a few damaged shingles and want to extend the life of your existing roof for a lower cost.