Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Sebastian
Custom window and door work in Sebastian, FL typically runs $900-$4,800 per opening depending on size, material, and whether impact-rated glass is required. Most custom shape windows and architectural grille upgrades we install here are completed in one or two visits once the units arrive from the manufacturer. If you live in Sebastian Highlands or anywhere east of US-1 and you’re looking at original aluminum frames, call us at (772) 218-5890. We’ll measure every opening twice and give you a written line-item quote before any deposit changes hands.
TruePane Windows & Doors has been doing Custom Windows & Doors work in Sebastian long enough to know the difference between a fogged seal and a frame that’s been eaten alive by lagoon salt. We coordinate scheduling from our South Florida office and send background-checked, uniformed crews directly to Sebastian, Roseland, and the surrounding Treasure Coast communities.
Why TruePane Windows & Doors Is Sebastian’s Preferred Custom Windows & Doors Company
We’re a second-generation glazier operation, founded by Dale Kessler, and we’ve built our reputation in Sebastian the slow way: one square installation, one registered warranty, one callback-free job at a time. Homeowners here remember the contractor who left them with a door that binds every July and a window that fogs the first time the humidity spikes. We hear those stories on almost every estimate call.
Our technicians are local to the Sebastian service area, uniformed, and background-checked. When we say we’ll be there, we’re there. The truck shows up with the right flashing tape, the right sealant for a salt-air environment, and the right tools for a 1983 CBS opening that was never perfectly square to begin with. That’s not marketing language. That’s what the work demands.
Every job, whether it’s a single custom arch window on a Sebastian Highlands rancher or full storefront glazing on a Roseland commercial building, carries the same two things in writing: our Done Right Promise and The Keystone Standard. Both manufacturer warranty layers get registered before the truck leaves your driveway. Durations are stated on your paperwork. If something isn’t done right, we come back and make it right. No arguing.
Dale’s rule is on the whiteboard in our shop: if the pane is not true, the job is not done. We apply that to a $900 replacement sash and a $40,000 curtain wall system the same way.
Our Custom Windows & Doors Services in Sebastian
Custom Shape Windows
Sebastian Highlands homes from the late 1970s and early 1980s have some of the oddest opening geometries we see on the Treasure Coast: eyebrow arches over front doors, octagonal vents in gable ends, half-rounds over picture windows. Standard off-the-shelf units don’t fit these openings, and forcing them in is how you get a seal failure in 18 months. We order custom-shape units cut to the actual opening dimensions, not the nearest stock size. Most of these are impact-rated for Indian River County’s roughly 130 mph design wind speed, which matters more on the east side of Sebastian near the inlet.

Commercial Storefront Glazing
Sebastian’s commercial strip along US-1 and the Indian River Drive corridor sees double salt exposure that chews through aluminum storefront frames faster than any inland location in Indian River County. We install and replace commercial storefront systems for offices, retail bays, and restaurant spaces, with attention to the two things that matter here: frame material that can hold up to constant marine air and glass that meets Florida Product Approval standards. If a storefront is fogging between the panes, the seal is dead and the unit needs replacement, not repair.

Curtain Wall Systems
For Sebastian commercial and mid-rise projects, we install curtain wall systems that handle the wind-load and corrosion demands of this specific coastal environment. The lagoon side and the ocean side create different pressure zones, and we account for that in the engineering of every elevation. Dale Kessler has been working with commercial glazing systems since 2008, and when he talks about mullion design and expansion joints in a salt-spray corridor, he’s talking from experience, not a catalog.

Architectural Grilles & SDLs
Several newer Sebastian communities, including Sebastian Lakes, enforce architectural review standards that specify window profiles and SDL (simulated divided lite) grid patterns. If you’re replacing windows in one of these neighborhoods, the wrong grille pattern can get you a stop-work notice from the HOA before the second unit goes in. We pull the architectural guidelines before we order, and we quote manufacturer lines side by side on paper so you can see exactly which profiles comply. For homeowners in older sections of Sebastian with no HOA, we’ll also tell you honestly when a custom grille pattern is worth the cost and when it isn’t.

What happens when you call
- 1
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 Sebastian
We’re an authorized installer for more than a dozen manufacturer lines, and for Sebastian homes we most often recommend PGT for their corrosion-resistant frame options and strong Florida Product Approval coverage. We don’t push one brand. We show you side-by-side quotes in writing and explain what each line actually delivers in a double-frontage salt environment. If you have an existing Andersen or Pella warranty, we handle the paperwork and register everything correctly. Parts for common PGT and Simonton windows are stocked locally through our Sebastian supply chain, which keeps lead times shorter than what you’ll hear from out-of-area shops.
Common Custom Windows & Doors Problems We See in Sebastian Homes
- Double-corrosion pitting on aluminum frames. Homes east of US-1 in Sebastian catch salt air from the Indian River Lagoon and the Atlantic simultaneously. We see aluminum frames pitted to the point of structural rot within a decade, with hardware so seized the crank operators snap off in your hand.
- Jalousie windows that can’t be retrofitted. Sebastian Highlands still has thousands of original jalousie louvered windows from the 1970s and 1980s. They cannot be made hurricane-compliant under any retrofit scenario, and any permitted remodel will trigger mandatory replacement of nearby louvered units.
- Failed seals on original picture windows. The humidity and salt gradient in Sebastian accelerates seal failure on older double-pane units. Once the seal goes, you get permanent fog between the panes that no defogging service will fix permanently.
- Out-of-square CBS openings. Concrete block stucco homes in Sebastian Highlands settle over forty years, and the original window openings are rarely square anymore. A stock replacement forced into an out-of-square opening will bind, leak, and fail early. Custom-measured units solve the problem rather than hiding it.
Pricing for Custom Windows & Doors in Sebastian, FL
Here’s what we tell homeowners in Sebastian when they ask about cost. Custom shape windows typically run $1,200-$3,800 per unit installed, depending on size and whether impact glass is required. Architectural grilles and SDL upgrades add roughly $80-$220 per window. Oversized glass panels for fixed installations run $2,500-$6,500 per panel, with engineering and crane or lift access included in the written quote. A full commercial storefront replacement on a US-1 retail bay generally starts around $8,000 and goes up from there. Jalousie replacement with impact-rated casement or picture units on a typical three-bedroom Sebastian Highlands home runs $14,000-$32,000 for the full job. These are not internet estimates. They’re the numbers we see from actual Sebastian projects. Call (772) 218-5890 for a free, in-home estimate with a written line-item quote.
We Also Serve Cities Near Sebastian
Our crews cover Sebastian and the surrounding Treasure Coast communities, including Roseland, Winter Beach, Vero Beach, and Fort Pierce. If your home sits on the border of any of these areas and you’re unsure who to call, call us. We’ll tell you straight whether we’re the right fit and schedule the estimate accordingly.
Serving Sebastian, FL - Our Local Coverage Area
We’re based in the Sebastian 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 - Custom Windows & Doors in Sebastian
The first upgrade is almost always a switch from jalousie louvered units to impact-rated casement or picture windows with low-E glass and argon fill. A 1980s Sebastian Highlands home off Barber Street that we worked on recently had a full row of failed jalousies along the living room. We replaced them with Andersen A-Series casement and picture units, and the thermal difference in that room was immediate. Most homeowners start with the street-facing or west-facing openings, where the afternoon sun and the worst of the lagoon air hit hardest. Call (772) 218-5890 and we’ll walk you through the sequence that makes sense for your house.
Look for white or gray pitting on the aluminum frames, especially on the east and lagoon-facing sides of the house. If the crank hardware is stiff or the handles snap when you try to turn them, the salt has seized the mechanism. On a 1980s Sebastian Highlands CBS home, we recently had to cut two original frames out with a sawzall because lagoon salt had pitted them so badly they couldn’t be unscrewed. Once you see pitting, the frame is compromised and the fix is replacement, not repair. Call (772) 218-5890 for a free inspection and an honest read on what’s worth saving.
No. Jalousie windows in Sebastian cannot be made impact-compliant under any retrofit, and Indian River County inspectors will flag them immediately on any permitted project. If you’re pulling a permit for a new door, a bathroom remodel, or a kitchen upgrade, any attached or nearby jalousie units will need to be replaced with impact-rated units that meet current Florida Building Code wind-load requirements. We see this on nearly every permitted remodel in Sebastian Highlands. The good news is that the replacement windows will solve the air-leakage and corrosion problems at the same time. Call (772) 218-5890 and we’ll tell you exactly which openings the inspector will require you to address.
For homes within several miles of Sebastian Inlet, we recommend impact-rated vinyl or fiberglass frames over aluminum. Aluminum is the most vulnerable material in this double-salt environment; it pits, corrodes, and seizes hardware within a decade. Fusion-welded vinyl frames from PGT or Simonton hold up far better, and fiberglass options from Jeld-Wen bring additional stiffness for large custom openings. The frame material is the single biggest factor in how long your windows last in this specific coastal zone. We’ll show you side-by-side pricing for all three materials so you can make the call with your eyes open.
If your Sebastian Highlands home is from the 1970s, 1980s, or early 1990s, the original builder warranty expired decades ago, so you’re free to replace windows and doors without warranty concerns. If you’re in a newer community like Sebastian Lakes, your builder warranty may still be active, and we’ll check the language before we touch anything. Some builder warranties are voided by unapproved modifications, but many allow window replacement if it’s done to code by a licensed contractor. We’ve worked within these rules before, and Dale Kessler’s policy is simple: we don’t do anything that puts your warranty at risk without telling you first. Call (772) 218-5890 and we’ll review your paperwork together.
Get Your Free Estimate in Sebastian
If you’re in Sebastian and you’re ready to find out what custom windows and doors will actually cost for your home, call (772) 218-5890. A live person answers every time. We’ll schedule a free estimate, measure every opening twice, and give you a written line-item quote with manufacturer warranties registered in writing before the truck leaves your driveway. That’s The Keystone Standard, and it applies to every job we do in Sebastian.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Sebastian and the Treasure Coast since 2008.
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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