Cost figures come from published 2026 Pennsylvania averages and are labeled with their source. Real prices depend on the size and pitch of the roof, the number of old layers, the condition of the decking, access, the material and the season. The cost calculator and the repair-or-replace quiz produce rough planning guides, not quotes, diagnoses or bids.

Summaries of Pennsylvania law, City of Philadelphia rules and township permit steps are written in plain language and can go out of date. Check the current rules with the office involved, and speak with a lawyer if you need advice on a contract or a dispute. Storm history on the site is drawn from National Weather Service records and is offered as background only.

This site does not do roofing work and does not stand behind any roofer's work, pricing, insurance, warranties or conduct. Mentioning a public agency, such as the Attorney General or Philadelphia's Department of Licenses and Inspections, does not mean that agency has any link to or approval of this site.

If you find something that looks wrong, please point it out through the contact page. Last updated October 10, 2026.