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Top-Rated Egress window pros in Williamsburg - Updated Nov 2026

West Penn Windows & Doors
4.7(
19
)
Egress Window - Install

Serving Williamsburg, PA and surrounding areas

In business since 1985

Free estimates

Credit card accepted

"I was very pleased with my finished products I had waited a very long time to have a bathroom installed on the first floor. The problem was that I had very little space where it could be placed. I worked with Jake from West Penn who designed a perfect small bathroom for me when others said it couldn't be done......and it turned out to be not only modern and functional but BEAUTIFUL too! They also remodeled the adjacent laundry room and entrance and added a closet that, when completed, blended in perfectly with the room decor. I was very pleased with all that was done. Jake was easy to work with and provided helpful suggestions that I appreciated and used. The workers were super -- personable, skilled and professional, and punctual as well. As is often the case when working on an old house, there were a few unexpected problems that needed addressed before work on the bathroom could continue. I was both grateful and impressed that when the job was finished I was not charged a single penney above the price that I was quoted at the beginning. I would definitely recommend this company to anyone. In fact I have done just that and they are now contracted to do several projects for my daughter. Thank you so much Jake and staff!"
Response time4 hrs
Recommended by100%of homeowners
Egress Windows FAQs, answered by experts

The cost to install a bow window can range from $1,500 to $15,000, with a national average of $3,900. The total price includes materials, which can cost between $1,200 and over $14,000, and labor, which typically adds $300 to $1,900. Several factors influence the final cost, including the window's size and frame material. For example, vinyl frames are the most budget-friendly option, while wood frames are more expensive. Custom features or energy-efficient upgrades will also increase the price. For comparison, a bay window installation typically costs between $1,000 and $7,000.

Expect excavation below grade, creating a well for access, weatherproofing, and thorough inspections during setup.

Yes, you can install a bay window in an existing house. You’ll need to have a structural engineer draw up plans to add the necessary support to your exterior load-bearing walls and a general contractor to make the changes to the framing around the new wall opening. This will cost an average of $3,000. After that work is done, a window installer can set the new bay window in place.

DIY is possible for experienced individuals. Professional installation ensures compliance with building codes and proper sealing.

The entire window replacement process, from the initial consultation to the final installation, typically takes between four and 15 weeks. This timeline accounts for measuring appointments, ordering, and manufacturing. On the day of the job, the physical installation takes about 30 minutes to two hours per window. A full-house replacement can take one to three days to complete. Factors that can extend this timeline include the total number of windows, custom sizes, complex window types, second-story installations, and any necessary repairs to existing window frames or openings.

The Williamsburg, PA homeowners’ guide to egress window services

From average costs to expert advice, get all the answers you need to get your job done.