One source of concern for homeowners contemplating a window replacement project is whether they need a building permit.
While building codes do differ from locality to locality, generally a one-for-one window replacement will not require building permits
When you start to resize window openings, cut new windows, or block off existing windows, you will probably need to obtain a permit.
Permit Department is Final Word
Most building permitting agencies are happy to answer questions about window replacement building permits. If you are nervous about revealing yourself, you can always make an anonymous call!