Do I need to apply for a permit before I replace my windows? As one of the top window contractors in the area, this is a question we get asked a lot. And the answer to that question is this: it depends. Whether or not you need a permit has to do with the extent of the work that has to be done.

When Is a Permit Required?
A permit will be required if the replacement windows you’re having installed involve the removal of existing wood or metal sashes, or if alterations are made to the existing opening. No, the city isn’t requiring a permit just to rip you off and collect fees. There are actually legitimate reasons why the city might require a permit. For example, local code might require tempered glass near the floor or tubs as a safety precaution. Also, if you’re altering the opening, a city inspector will check to make sure your modifications are structurally sound.
If your window replacement only involves simply swapping in the “inserts” that are installed directly into the existing frame, you might not need one. But to be sure, it’s best to ask your contractor before you get your replacement windows.
Some Code Requirements You Should Know
USB Section 2406 – This requires windows located in areas that are subject to human impact like within tub and shower enclosures to be safety glazed.
USB Section 310.4 – This requires windows located in sleeping quarters to meet egress requirements.
Renewal by Andersen® of Seattle is one of the leading installers of replacement patio doors and windows in Seattle, WA, as well as its nearby areas. To schedule a window replacement consultation, give us a call at (206) 777-0954, or fill out our contact form today.