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*The Angi rating for Egress Window Service companies in Williston, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Egress Window Service needs.

*The HomeAdvisor rating for Egress Window Service companies in Williston, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Egress Window Service needs.

Last update on June 25, 2026

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Avatar for Groundworks
Groundworks
4.4(
341
)
Egress Window - Install

Serving Williston, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

"Carnell & John were professional & efficient! Work was explained & questions answered."
Foundation
Foundation
Foundation
Foundation
Foundation

+13

Response time1 day
104 neighbors recently requested a quote
Recommended by88%of homeowners
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Egress Windows questions, answered by experts

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.

Yes, you can always make an existing window bigger, but the job complexity varies widely depending on the location of the window and the framing around it. Exterior walls are always load-bearing, so making windows wider will require structural changes that make for a more complex but doable project. Making windows taller often won’t require structural changes.

A good U-factor for windows is 0.30 or lower, but they can range from 0.20 to 1.20. A general rule of thumb when it comes to the U-factor is that the lower, the better.

If improperly installed, an egress window can compromise your foundation’s structural integrity, so it’s important to work with a pro to ensure your foundation remains in good shape. Any money you may save on a DIY egress window installation may cost you in the long run if your foundation is damaged in the process.

Yes, with modifications or the use of adapter kits for tricky placements.

The Williston, SC homeowners’ guide to egress window services

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

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