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 Sebastian
Window replacement in Sebastian, FL typically runs $550-$1,400 per opening for insert replacements and $900-$2,200 per opening for full-frame work, depending on the window type and what we find once the old unit comes out. Most Sebastian jobs take one to two days for a standard home, though jalousie-to-impact conversions in Sebastian Highlands often run longer because of the framing corrections involved. We know this city’s housing stock and its salt-air problem better than most, because we’ve been working inside these block homes for years. Call (772) 218-5890 for a free estimate, and we’ll come out, measure, and write you a line-item quote you can read without a decoder ring.
Why TruePane Windows & Doors Is Sebastian’s Preferred Window Replacement Company
We’re a second-generation glazier outfit led by Dale Kessler, and we built our reputation on a rule that never leaves the whiteboard: if the pane is not true, the job is not done. Sebastian homeowners keep calling us back because we write both manufacturer warranty layers into the contract, state the durations in writing, and register everything before the truck leaves your driveway. That’s The Keystone Standard, and it’s what separates a window job that lasts twenty years from one that leaks in five.
Our technicians are background-checked, uniformed, and trained to measure every opening twice. They quote manufacturer lines side by side on paper, so you see the actual price difference between a Marvin and a Milgard before you commit to either. No fine print. No surprises on the bill. Just a square deal, in writing, with a live person answering the phone 24 hours a day if you need to reach us.
We stand behind the work with a Done Right Promise. If something isn’t right, we make it right. No paperwork fights, no arguing about who said what. That’s how a company planning to be in this town thirty years from now does business.
Our Window Replacement Services in Sebastian
Full Frame Replacement
Full-frame replacement means we remove the entire old window down to the rough opening, correct any framing problems we find, flash the opening properly, and set a new unit that meets current Florida Building Code wind-load requirements. In Sebastian Highlands homes built between the mid-1970s and early 1990s, this is often the only real option. The original aluminum frames have spent decades in a double-corrosion zone, and once we pull one out, the wood bucks behind them routinely show rot or loose anchors. Most full-frame work in Sebastian runs $900-$2,200 per opening.

Insert Window Replacement
Insert replacement fits a new window into the existing frame when the frame itself is still square and structurally sound. It’s a faster, less invasive job, and it works well for newer Sebastian homes where the original frames are still serviceable. We measure twice before ordering, and if we find hidden corrosion or seal failure when we pull the stop, we stop and show you what we found before proceeding. Typical insert windows in Sebastian run $550-$1,400 per opening.

Storm Window Replacement
Storm window replacement in Sebastian matters more than you’d think, especially for homes near the Indian River Lagoon. Salt-laden air works its way into tracks and sashes, pitting the aluminum and seizing the hardware within a decade or two. We replace worn storm units with corrosion-resistant frames and impact-rated glass where the house calls for it. If you’re within several miles of Sebastian Inlet, you’re getting the brunt of that salt-spray corridor, and standard-grade storm windows will fail faster there than almost anywhere else on the Treasure Coast.

Energy-Efficient Upgrade
Replacing original single-pane aluminum windows with double-pane low-E glass and argon fill is one of the most reliable energy upgrades for a Sebastian block home. Concrete block holds heat all day and radiates it back into the house at night, and old windows just add to the load. An energy-efficient upgrade to a typical three-bedroom Sebastian home runs $8,000-$18,000 depending on the number of openings, and we quote each line item so you can see where every dollar goes. The 5% discount for seniors and veterans applies to this work.

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 Sebastian
We’re an authorized installer for more than a dozen manufacturer lines, and for Sebastian homeowners we regularly quote side by side on paper. Each has strengths in coastal applications, and we’ll tell you honestly which one fits your exposure level and your budget. We don’t push one brand because the margin is better. We quote what works for your house, and we register both warranty layers in writing before leaving the driveway. That means if a seal fails in year nine, you know exactly what’s covered and for how long.
Common Window Replacement Problems We See in Sebastian Homes
- Lagoon-driven aluminum corrosion: Salt air from the Indian River Lagoon and the Atlantic, pushed inland through the Sebastian Inlet corridor, pits aluminum frames and hardware faster than inland Treasure Coast communities see. Sashes seize, jambs pull free from the block, and the window stops sealing altogether.
- Mandatory jalousie removal: Jalousie windows are louvered glass panels standard in 1970s Florida construction, and they’re still everywhere in Sebastian Highlands. They cannot be made hurricane-compliant under any retrofit scenario, and local inspectors flag them immediately on any permitted project. This means full replacement, not repair.
- Undersized framing behind old windows: Homes built before current wind-load requirements often have headers and king studs that don’t meet today’s code. Opening the wall reveals the problem, which triggers a permit upgrade homeowners didn’t budget for. We write an allowance into every contract so this doesn’t become a surprise.
- Fogged seals from thermal cycling: Sebastian’s heat, humidity, and salt air work on insulated glass seals year-round. A fogged pane means the seal has failed, and the window’s insulating value is gone. Replacement, not repair, is the fix that lasts.
Pricing for Window Replacement in Sebastian, FL
Here are the honest numbers for this market. Insert window replacement in Sebastian runs $550-$1,400 per opening. Full-frame replacement runs $900-$2,200 per opening, and that includes correcting the framing problems we commonly find in older block homes. Impact-rated windows, which Indian River County’s roughly 130 mph design wind speed makes necessary for any permitted replacement, add 15-30% over standard units. A whole-home replacement for a typical 10-15 opening Sebastian Highlands house lands between $9,000 and $28,000.
What moves the price is what we find once the old window comes out: rotted bucks, undersized headers, corroded anchors, or wiring that needs relocating. We handle this by writing a framing allowance into every Sebastian contract, then pricing any correction in writing before we touch it. No change orders that show up after the fact. Call (772) 218-5890 for a free estimate, and we’ll give you an exact number for your house.
We Also Serve Cities Near Sebastian
TruePane handles Window Replacement throughout Indian River County and the surrounding area, including Roseland, Winter Beach, Vero Beach, and Fort Pierce. If you’re in one of those communities, the same crew that works in Sebastian can handle your job. You can learn more about how we approach this work across the region on our Window Replacement in Sebastian page.
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 - Window Replacement in Sebastian
Sebastian sits between the Indian River Lagoon and the Atlantic, and the Sebastian Inlet funnels salt-laden marine air into the residential grid at a rate inland towns never experience. That steady salt exposure pits aluminum frames, seizes hardware, and eventually pulls jambs loose from the concrete block. Most original aluminum windows in Sebastian Highlands show visible pitting by year twenty, and by year thirty many are structurally compromised. If you’re seeing chalky white residue or flaking on your frames, the corrosion is already well underway. Call (772) 218-5890 for an inspection, and we’ll tell you honestly whether replacement or repair makes sense.
No. Jalousie windows cannot be retrofitted to meet Florida Building Code impact standards under any approved method. The louvered glass panels have no structural frame to anchor impact glazing or shutters. Once you pull a permit for any work that touches those openings, the inspector will require full replacement with impact-rated units. We handle this constantly in Sebastian Highlands, and we write the full replacement into the initial estimate so there’s no surprise when the permit comes back with that requirement. Call (772) 218-5890 for a free quote on jalousie conversion.
Replacing windows in a pre-1990 Sebastian home typically triggers three things: impact-rated glazing to meet Indian River County’s roughly 130 mph wind-load requirements, corrected flashing and waterproofing at the rough opening, and structural upgrades if the original framing doesn’t meet current code. We frequently find undersized headers over window openings in Sebastian Highlands homes, and bringing those up to code is a permit requirement, not an optional upgrade. We build a framing allowance into every contract, and any upgrade gets priced and approved in writing before work starts. Call (772) 218-5890 and we’ll walk you through what your specific house is likely to need.
You’ll see fogging or condensation between the glass panes that you can’t wipe away from either side. That’s a failed insulated glass seal, and it means the window has lost most of its insulating value. In Sebastian’s humidity, failed seals also let moisture collect inside the glass unit, which leads to staining and sometimes mold on the sash. Single-pane aluminum windows from the 1970s and 1980s don’t have seals to fail, but they’re so energy-inefficient that replacement pays for itself over a few summers. If you’re seeing fog, streaks, or condensation that won’t clear, the window is done. Call (772) 218-5890 for an assessment, and we’ll quote replacement rather than patching it.
Yes, and the difference is measurable. Single-pane aluminum transfers heat directly into the house, and concrete block construction holds that heat long after the sun goes down. Double-pane low-E glass with argon fill cuts that heat gain dramatically, especially on west-facing and south-facing walls. Most Sebastian homeowners we work with report cooling-cost reductions of 15-30% after a full replacement, depending on the house and how many openings face the afternoon sun. The improvement is real, and it’s one of the few upgrades that pays for itself over time. Call (772) 218-5890 and we’ll give you a line-item quote so you can see what the investment looks like for your house.
Call TruePane for Window Replacement in Sebastian
If the pane is not true, the job is not done. That’s been our rule since Dale Kessler started this company, and it governs every window we set in Sebastian. We’ll measure twice, quote manufacturer lines side by side on paper, register both warranty layers in writing, and stand behind the work with a Done Right Promise. No change orders without your written approval. No fine print. Just a square deal from a company that plans to be here thirty years from now. Call (772) 218-5890 today for your free estimate.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Sebastian 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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