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Do You Need a Permit to Install New Windows?

Planning to replace your windows? You might need a building permit depending on the extent of the work involved. The windows installation experts at Renewal By Andersen® of Long Island show you how to find out if you need one below.

When is a Permit Not Needed? 

If you’re planning to replace the window’s sashes or it’s movable parts, there’s no need for a permit. That’s because a contractor doesn’t need to alter the structure of your home to insert a few parts into the frame. 

When Does Window Work Need a Permit?

However, if you’re planning to install a larger window, you’ll need to apply for a permit. That’s because you’ll be cutting a larger hole and make a few structural alterations in your walls to install the new window. 

Things to Know Before Applying

Keep in mind that your local building authority won’t issue you a permit if your window doesn’t comply with local building codes. These vary from city to city, but there are several that are observed universally. 

Safety Glazing 

Local authorities enforce building codes to ensure its occupants are safe. For example, windows near doors, near the floor, or in tubs or showers should have safety glazing. This is to protect people in case a natural disaster strikes. 

Egress Requirements 

Egress means entry and exit. Replacement windows should be big enough to serve as an exit for a building’s inhabitants and an entry point for firefighters and rescue personnel. 

What’s the Worst That Could Happen?

Without a permit, there’s no guarantee your new windows will be code-compliant and therefore pose no threat to its inhabitants. Plus, it can cause problems in the event you decide to sell your home. Inspectors might notice some discrepancies between the structure of your home and its blueprints. 

One more thing: only hire reputable contractors. A contractor who disregards the need for permits is a red flag. If they’re willing to flout building regulations, who knows what else they’re willing to ignore? 

Looking for reputable contractors in your area? Renewal By Andersen® of Long Island offers a wide variety of premium windows, including sliding windows. To get a free estimate, call us at (631) 206-6773. Or leave us a message on this form. We serve homeowners in Massapequa, New York. 


"I was very impressed with Renewal by Andersen. They showed up in time and we received several follow up phone calls as the installation was being done as well as the sales representative stopping by to check in on the installation. The delivery/ installer was very professional. I would highly recommend Renewal By Andersen."

February, 18

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