Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Sewall’s Point
Window replacement in Sewall’s Point runs about $1,850 to $4,200 per opening for full-frame impact-rated work, with most single-story homes falling between $28,000 and $65,000 total. We finish most whole-home replacements in three to five working days once permitting clears. TruePane Windows & Doors has been setting windows on this peninsula long enough to know what the salt does to a frame, and we’re the crew Sewall’s Point homeowners call when they want the job done right the first time. Call (772) 218-5890 and a live person answers, 24/7.
Why TruePane Windows & Doors Is Sewall’s Point’s Preferred Window Replacement Company
Sewall’s Point is not a place where you guess. The town sits on a narrow peninsula entirely encircled by saltwater – the St. Lucie River to the west, the Indian River Lagoon to the east – and that geography punishes window assemblies from every direction. We know this because we’ve pulled hundreds of failed frames out of homes along South Sewall’s Point Road, Heritage Drive, and the lagoon side near the tip. Homeowners here tend to have owned their property for twenty or thirty years. They remember the last contractor who left them with a fogged seal and a binding sash. We don’t work that way.
Dale Kessler founded TruePane in 2008, but the craft runs deeper – he’s a second-generation glazier, and the company carries years of combined trade heritage. Every technician who steps onto a Sewall’s Point job is background-checked and uniformed. We measure every opening twice. We quote manufacturer lines side by side on paper, not over a phone call. And before the truck leaves your driveway, both manufacturer warranty layers are registered in writing with durations stated. That’s The Keystone Standard. If the pane is not true, the job is not done.
We also handle the paperwork. Sewall’s Point is in a High-Velocity Hurricane Zone. Permitting here is not optional, and it’s not fast if you don’t know Martin County’s requirements. We pull permits on every replacement, coordinate inspections, and make sure your home meets current Florida Building Code. No surprises on the bill, no second appointment left hanging. That’s a square deal.
Our Window Replacement Services in Sewall’s Point
Full Frame Replacement
Full-frame replacement in Sewall’s Point is not a product swap. It’s an opening-up of the wall cavity, and that’s where the real truth lives. Most homes on this peninsula were built between the 1960s and 1990s, and the original aluminum frames are typically pitted, corroded, and leaking in ways you can’t see from the outside. We remove the entire old window down to the rough opening, inspect the rough framing for rot, replace or repair any damaged wood, install new marine-grade flashing tape, and set the new impact-rated unit. In a town where every elevation faces salt air, full-frame is often the only honest answer for original windows.
A typical full-frame replacement in Sewall’s Point runs $1,850 to $4,200 per opening depending on size, brand, and what we find once the wall is open. We write a marine-grade allowance into the contract upfront, so when we find rot behind a jamb – and on this peninsula, we usually do – the fix is already covered and priced. You approve it in writing before we touch it.

Insert Window Replacement
Insert replacement, sometimes called pocket replacement, keeps your existing frame and sets a new sash pack inside it. On Sewall’s Point, this makes sense only when the original frame is still structurally sound, the rough opening is dry, and the homeowner wants to preserve specific interior trim details. We inspect the existing frame with a moisture meter before we recommend inserts. If there’s hidden rot or compromised flashing, we’ll tell you straight – a pocket job over a bad opening is just a warranty claim waiting to happen. Expect inserts to run $1,100 to $2,600 per opening here, though marine-grade hardware and impact glass push toward the higher end.

Storm Window Replacement
Storm windows on Sewall’s Point do double duty: they protect the primary window from wind-driven rain and salt spray, and they add a second barrier against the humidity that comes off the lagoon and river all year. We replace exterior storm units with aluminum or vinyl frames rated for coastal exposure. On older Sewall’s Point homes that still have functional original wood windows, a properly fitted exterior storm unit can extend the primary window’s life by years. Plan on $600 to $1,400 per storm window, installed and flashed correctly.

Energy-Efficient Upgrade
Energy-efficient upgrades in Sewall’s Point are not just about the electric bill, though a full low-E insulated glass replacement makes a real difference in a house that faces open water on every side. It’s about comfort and condensation control. The encircling lagoon and river keep relative humidity elevated year-round, and single-pane aluminum frames conduct that moisture straight onto your interior glass. We install low-E argon-filled insulated glass units in impact-rated frames, often qualifying homeowners for FPL rebates. A typical energy-focused replacement of 10 to 15 openings runs $24,000 to $55,000 depending on glass packages and frame material.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Sewall’s Point
Sewall’s Point homeowners expect premium systems, and we install them. TruePane is an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and Ply Gem. On this peninsula, PGT and CGI impact-rated lines are the most common specifications we quote – they’re built for Florida’s High-Velocity Hurricane Zone and they hold up to the salt. We stock common replacement hardware, weatherstripping, and balance systems for these brands, which means faster turnaround when a window needs service. If you’re comparing quotes, we’ll put the manufacturer lines side by side on paper so you see exactly what you’re buying. For a deeper look at our full service approach, see our Window Replacement team’s process – same crew, same standard, no shortcuts.
Common Window Replacement Problems We See in Sewall’s Point Homes
- Four-elevation corrosion. Because Sewall’s Point is fully encircled by the St. Lucie River and Indian River Lagoon, there is no inland buffer. Salt-laden air reaches every exposure, so north- and west-facing aluminum frames corrode nearly as fast as the water-view windows. We see this on nearly every original-window home we inspect.
- Fogged insulated glass units. Failed seals let argon escape and moisture cloud the glass. On Sewall’s Point, it’s common to see fogged IGUs on multiple elevations at once – a direct result of year-round elevated humidity from the surrounding water. This is not a cosmetic issue; it means the thermal barrier is gone.
- Deteriorated flashing tape. The original flashing on 1960s through 1990s homes here was undersized by today’s coastal standards. Constant marine humidity breaks down old butyl and asphalt tapes, letting water behind the frame and into the wall cavity. By the time you see peeling paint or a soft jamb, the damage is already in the wall.
- Binding sashes and failed balances. Salt and humidity work on window hardware relentlessly. Double-hung units that bind in July, casements that won’t crank, balances that snap – these are the everyday failures of a peninsula home. We stock replacement hardware for the brands most common on the island, so most repairs happen in one visit.
Pricing for Window Replacement in Sewall’s Point, FL
Sewall’s Point pricing runs higher than nearby mainland towns, and there’s a reason: every opening on this peninsula needs marine-grade hardware and impact-rated glass to meet code and survive the environment. Here’s what you can expect per opening, installed:
- Insert window replacement: $1,100 – $2,600 per window
- Full-frame replacement with impact glass: $1,850 – $4,200 per window
- Storm window replacement: $600 – $1,400 per unit
- Energy-efficient low-E argon upgrade: $1,600 – $3,800 per window depending on package
- Whole-home replacement (10-15 openings, full-frame impact): $28,000 – $65,000
What moves the number: window size, brand selection (PGT and CGI cost more than stock vinyl, and on this island they’re usually the right call), condition of the rough opening, and whether your home is in a High-Velocity Hurricane Zone – which all of Sewall’s Point is. We write a fixed price before we start, with allowances for rot repair priced and approved in writing. No change orders. A permanent 5% discount applies for seniors and veterans. Call (772) 218-5890 to schedule a free estimate.
We Also Serve Cities Near Sewall’s Point
Based out of our South Florida office, our crews serve the whole Martin County coastal area. We set windows regularly in Fort Pierce, Fort Pierce South, White City, and South Beach. If you’re on the mainland and wondering whether the same marine-grade standards apply, the honest answer is that homes here benefit from the same coastal specification – though none of them face what Sewall’s Point faces on all four sides. For a focused look at our work on the peninsula, see Window Replacement in Sewall’s Point.
Serving Sewall’s Point, FL - Our Local Coverage Area
We’re based in the Sewall’s Point area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Window Replacement in Sewall’s Point
Yes. Sewall’s Point is fully encircled by the St. Lucie River and Indian River Lagoon, which means there is no inland buffer and no protected side of your house. The relative humidity and salt-laden air reach all four elevations roughly evenly. We’ve pulled north-facing aluminum frames that were just as pitted as the lagoon-facing ones. If you’re replacing windows on this peninsula, specify marine-grade hardware and impact glass on every opening, regardless of which way it faces. That’s the only way the warranty stays whole. Call (772) 218-5890 and we’ll walk your property and show you what we’re seeing.
Opening the wall for full-frame replacement in Sewall’s Point typically triggers current Florida Building Code requirements, which means impact-rated glazing, proper flashing and drainage, and sometimes upgraded anchored connections at the rough opening. Homes built before the late 1990s often predate today’s Hurricane Zone standards, so the old window may have been set with nothing more than caulk and a prayer. We pull permits, bring the opening to code, and coordinate the Martin County inspection. The cost of compliance is written into your quote before we start, not added after the wall is open.
We write a marine-grade allowance into the contract before we ever remove the first window. When we open the wall and find rot at the jamb or sill – which happens regularly on this peninsula, thanks to decades of salt-loaded moisture working on undersized flashing – we stop, photograph the damage, and give you a written price to repair it. You approve the fix, we do the work, and the new unit goes in over solid wood. On a 1980s custom home near South Sewall’s Point Road, our crew found rot at the jamb on lagoon-facing casement windows and the same condition upwind on the river side. The allowance covered it, the homeowner approved it, and the replacement went in correctly. No arguments, no hidden line items.
Fog between the panes means the insulated glass unit seal has failed, allowing argon gas to escape and moisture to work its way inside. In Sewall’s Point, it’s common to see failed seals on windows facing every direction, because the encircling lagoon and river keep humidity elevated around the entire home. Once the seal is broken, the window loses its thermal performance and the fog will only worsen. You can’t repair a failed IGU – the glass pack gets replaced, ideally in a new frame if the original aluminum is pitted. Call (772) 218-5890 for an exact quote; estimates are free.
Sometimes, but honestly, on Sewall’s Point that’s rarely the right long-term move. If the original aluminum frame is still structurally sound, not pitted, and the flashing is intact, we can set new insulated glass packs into the existing frames. But most frames from the 1960s through 1990s on this peninsula have corrosion at the corners and failing glazing channels. A glass-only replacement over a corroded frame means the new unit is compromised from day one. We recommend full-frame replacement for original aluminum frames here. We’ll measure and tell you straight, either way.
Ready to Replace Your Windows in Sewall’s Point? Call Today
If your windows are fogged, pitted, binding, or leaking in Sewall’s Point, don’t wait for the next storm season to make the decision for you. TruePane Windows & Doors has been setting windows along this peninsula for years – we know the salt, we know the code, and we know what’s behind these walls. Every job is covered by the Done Right Promise and The Keystone Standard: both warranty layers registered in writing, durations stated, before we leave your driveway. We stand behind it. Call (772) 218-5890 to schedule your free estimate. A live person answers, 24/7.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Sewall’s Point with marine-grade window replacement and a second-generation glazier’s standard.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.



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