A peninsula with water on three sides
Impact Windows in Sewall's Point, FL
Large impact sliders and window walls for homes facing the St. Lucie River and the Indian River Lagoon.
- Free in-home estimate: every opening measured and its frame and wall type noted
- Written quote listing each opening, product, design pressure and permit line
- Permit, product approval paperwork and inspections handled as part of the job
Big Views, Big Openings
Impact windows and large impact sliding glass doors are what most Sewall's Point owners ask about, because the houses here are built around views. The town sits on a narrow peninsula with the St. Lucie River to the south and west and the Indian River Lagoon to the east. About 71 percent of its 4.13 square miles is water. Waterfront homes tend to have wide glass walls, multi-panel sliders and tall picture windows, and each of those openings needs protection rated for open-water exposure.
Close to two landfalls
Hurricanes Frances and Jeanne both came ashore on Hutchinson Island just east of Sewall's Point in September 2004, exactly three weeks apart. Homes on the point took wind straight off the lagoon. Many owners who lived through that season decided they were done with panels on glass walls that are 12 or 16 feet wide.
Large sliders done right
An impact sliding glass door is tested with a specific number of panels, panel sizes and configuration. Wider and taller openings need heavier frames and are rated for lower pressures than smaller units, so the biggest openings take the most care in product selection. We look at:
- The required design pressure for that wall based on height and exposure
- Whether the opening fits a tested configuration, or needs a mullion or a different layout
- Sill height and drainage so wind-driven rain does not come in under the door
- Whether you want a pocket door that disappears into the wall or a stacking unit
Older peninsula homes
Sewall's Point was settled in 1889 and incorporated in 1957, and its 931 homes include older houses alongside newer waterfront builds. On older homes, openings may need structural work before larger impact units can go in. Changing the size of an opening is structural and typically needs engineered plans, so we tell you early if your idea crosses that line.
Town permits
Sewall's Point is its own incorporated town. Check with the town's building office for its permit process, which can differ from the county's. We prepare the application with product approvals and schedule the inspections.
Low elevation, high water
Much of the town sits about seven feet above sea level. That does not change the window rating, but it affects how we plan work at ground level, flashing and sill heights on doors that open toward the water. We pay close attention to door thresholds facing the lagoon and river.
Picture windows and transoms
Waterfront homes often pair sliders with fixed picture windows and transoms above them. Fixed units have no moving parts and can be rated for high pressures at larger sizes than operable windows. Where you want maximum view and do not need the window to open, a fixed impact unit can be the strongest and cleanest choice. We combine fixed and operable windows so each room still gets airflow where you want it.
Care for frames near salt water
With water on three sides, salt air reaches every wall. Rinse frames and tracks with fresh water every few months, keep weep holes clear so water drains out of the sill, and check that sliding door rollers move smoothly before storm season.
Sewall's Point at a Glance
- Mostly water. Of the town's 4.13 square miles, 2.95 square miles (about 71%) is water, on a peninsula between the St. Lucie River and the Indian River Lagoon.
- Settled 1889, incorporated 1957. Platted from 1891 to 1893, the town incorporated on June 12, 1957; the Capt. Henry E. Sewall House dates to 1889.
- 2004 landfalls next door. Frances and Jeanne both made landfall on Hutchinson Island, just east of the town, three weeks apart in September 2004.
- Small town. The 2020 census counted 1,991 residents and 931 housing units, with a median age of 56.9.

Our Services in Sewall's Point, FL
Sewall's Point Questions
Can a 16-foot slider be impact rated?
Yes, there are impact sliding doors tested in large multi-panel configurations. The rated pressure drops as the size goes up, so we confirm the product meets what your wall requires.
Who handles permits in Sewall's Point?
The town has its own building office. We file the permit there with product approvals and arrange inspections.
Free Estimates in Sewall's Point, FL
Send us the widths of your biggest glass openings and which way they face. We will match products to the exposure and price them.
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