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Window Installation in Union Park: What It Really Costs and How Orange County Permitting Changes the Job
Window installation in Union Park runs $450-$1,100 per window for a standard vinyl or aluminum replacement on a 1970s concrete block ranch, and $1,300-$2,800 per opening when you’re replacing original aluminum jalousies that require reframing, flashing, and Orange County Building Division permit documentation. Most Union Park homes built between the late 1960s and mid-1980s still have their original single-pane windows, which means our crews show up knowing the rough opening probably isn’t square and the lintel situation won’t be simple. We’ve been doing this work long enough to write a realistic allowance into your contract before we pull the first frame. Call (813) 320-9346 to schedule a free estimate and get a line-item price in writing before anything gets opened up.
Why TruePane Windows & Doors Is the Company Union Park Homeowners Call First
We know Union Park differently than a franchise crew driving in from across town. We know that when you pull an original aluminum window on Larkspur Drive, you’re likely to find the waterproofing failed years ago and the rough opening has settled out of square. We know that a permit on a house near Dowden Road runs through Orange County Building Division, not a city hall, and that missing product approval documentation is the single most common reason a Union Park window permit gets rejected. Our lead, Dale Kessler, built TruePane in 2008 for exactly this kind of housing stock: older CBS ranch homes that honest contractors had been patching instead of fixing properly.
We’re not the cheapest window installer in Union Park, and we won’t pretend to be. What we offer is a written price before the work starts, background-checked uniformed technicians on every job, and a 90-Day Done Right Promise that means exactly what it says. If the installation isn’t done right, we come back and make it right with no paperwork fights. Every job carries The Keystone Standard: both manufacturer warranty layers are registered in writing with durations stated before our truck leaves your driveway. A live person answers our phone 24 hours a day, seven days a week. No automated tree, no callback form, no regional call center reading a script.
Union Park homeowners tell us the same thing over and over: they’ve been burned by a contractor who disappeared after the permit was rejected or the rotted jamb was discovered. We hire local crews, train apprentices into journeymen, and plan to be in this community in thirty years. That’s not a marketing line. It’s how we operate.
Our Window Installation Services in Union Park
We install, replace, and service the full range of residential windows in Union Park. Four types dominate the work we do here because of the area’s specific housing stock, so we’ll walk through each one.
Single & Double Hung Windows
Single and double hung windows are the most common replacement in Union Park’s single-story CBS ranch homes. The original aluminum single-pane units from the 1970s and early 1980s are typically 40-50 years old now, with failing balances, corroded tracks, and glass that doesn’t meet Florida’s current energy code. A standard vinyl double hung replacement in a Union Park home runs $500-$900 per window for a mid-grade line like ViewLux or Jeld-Wen, assuming the rough opening is still square and the lintel doesn’t need work.
When we open up a wall on a house near State Road 50, we’re looking for the things the last guy ignored: undersized lintels, missing flashing tape, rotted wood jambs in CBS block openings. Union Park’s inland humidity does real damage over four decades. We price the allowance for that upfront, not as a surprise change order after your walls are open.

Casement Windows
Casement windows appear regularly in Union Park homes built with converted Florida rooms or rear additions. A quality casement replacement runs $600-$1,200 per unit here, depending on whether you’re going with a standard vinyl frame or a manufacturer line like Andersen or Pella. The advantage of casement is the mechanical seal: when closed, the sash compresses against the frame, which matters in a climate where summer humidity pushes moisture into every gap.
Union Park sits in Orlando’s inland heat island. That means seals degrade faster than homeowners expect, and a casement that’s been binding for years in July is telling you the frame has shifted. Our technicians measure every opening twice before ordering. If the rough opening is out of square by more than a quarter inch, we address it before the new window goes in, because no amount of shimming will fix a window set into a racked opening.

Fixed & Picture Windows
Fixed and picture windows in Union Park typically come up as replacements for large front-facing openings in ranch homes, or as part of converting an aging Florida room into conditioned living space. A standard vinyl picture window runs $400-$900 in Union Park, though large openings that require structural header work or impact-rated glass climb quickly. If you’re near the University Boulevard corridor and want a fixed window with impact-rated glass, expect $1,200-$2,400 depending on size.
The energy math is straightforward here: a 50-year-old single-pane picture window facing west in Union Park is a solar oven in summer. Replacing it with a low-E argon-filled unit cuts the thermal load immediately, and Florida Building Code wind-load compliance is part of any permitted job we do. Orange County Building Division requires product approval documentation at permit submission, which we prepare and submit as part of our standard process.

Awning Windows
Awning windows show up in Union Park bathrooms, kitchens, and anywhere a smaller venting window was originally installed. They hinge at the top and open outward, which makes them one of the few window styles that works well in Florida’s rainy season: you can leave them cracked for ventilation during a light rain without water pooling on the sill. Replacement awning units in Union Park typically run $450-$850 per window.
One thing we see often in Union Park’s older homes: awning windows in converted utility rooms or rear additions that were never properly flashed against the concrete block. The result is water staining down the interior wall and a rough opening with rot that has to be addressed before the new unit is installed. We inspect for that on the free estimate visit, not after the window is out.

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 Union Park
TruePane is an authorized installer for more than a dozen manufacturer lines, including Andersen, Pella, Marvin, Milgard, PGT, and CGI. For Union Park homeowners, that means we can quote two or three manufacturer lines side by side on paper so you see exactly what you’re paying for: frame material, glass package, hardware, and warranty terms. ViewLux offers a strong mid-range vinyl option for standard ranch replacements, while Andersen and Pella serve customers who want wood-clad or premium composite lines. We register both warranty layers in writing before the truck leaves your driveway, and we stock common replacement parts locally for faster turnaround on service calls across Union Park.
Common Window Installation Problems We See in Union Park Homes
Union Park’s housing stock is specific, and after forty-plus years in Florida’s inland climate, the failure modes are predictable. Here’s what we usually find when we open up an original window:
- Non-compliant aluminum jalousies that trigger full code upgrades. Union Park’s converted Florida rooms and rear additions are loaded with jalousie windows that are entirely non-compliant with current Florida Building Code energy and structural requirements. A simple glass swap isn’t legal: opening the wall means a full permitted replacement with approved product specs submitted to Orange County Building Division.
- Failed waterproofing hidden behind original aluminum frames. CBS ranch homes built in the 1960s through 1980s often had no flashing tape installed at original construction. The first clue is discolored drywall or peeling paint near the window corners. By the time the frame comes out, the jamb may be rotted and the rough opening needs repair before any new window goes in.
- Fogged seals from out-of-square rough openings. Insulated glass units in older Union Park homes fail early when an installer forced a square window into an out-of-square CBS opening. We correct the rough opening before installation. A unit that’s fogged between the panes means the seal has failed, and in most cases the whole sash needs replacement, not just the glass.
- Permit rejections from missing wind-load documentation. Orange County Building Division enforces Florida Building Code wind-load compliance on all replacement windows and doors, even though Union Park falls outside the highest coastal wind-speed zones. A contractor who doesn’t submit product approval documentation is going to get the permit kicked back, and the homeowner is the one who sits with a house torn open waiting on paperwork.
Pricing for Window Installation in Union Park, FL
Here’s what you can expect to pay for window installation in Union Park as of 2026. Standard vinyl replacements in good rough openings run $450-$900 per window for single and double hung units and $400-$900 for fixed picture windows. Casement and awning replacements run $450-$1,200. If you’re replacing original jalousies, pulling permits through Orange County Building Division, and correcting framing or lintel issues, plan on $1,300-$2,800 per opening. Impact-rated glass adds $500-$1,000 per window depending on size and manufacturer line.
What moves the price in Union Park specifically is the condition of the rough opening once the old unit is out. Older CBS construction often has lintels that are undersized for today’s code, jambs that water has been working on for decades, and openings that are visibly out of square. Our free estimate includes inspection of accessible framing, and our contract includes a written allowance for framing and flashing corrections. We don’t surprise you with a change order after the walls are open. Call (813) 320-9346 to schedule a free estimate and get exact numbers for your house on paper.
We Also Serve Cities Near Union Park
TruePane’s Window Installation crews work throughout the Union Park area and the surrounding Orange County communities. If you’re in Acacia Villas, Alafaya, Altamonte Springs, or Altoona, we provide the same permitted, warrantied installation service. For more about our work specifically in this community, see Window Installation in Union Park. We schedule freely across the area and coordinate permits through Orange County Building Division for all unincorporated project locations.
Key Takeaways for Union Park Homeowners
- Original jalousie and aluminum single-pane windows are typically non-compliant with current Florida Building Code and require a full permitted replacement, not a glass swap.
- Union Park permits route through Orange County Building Division, and missing wind-load product approval documentation is the top reason permits get rejected.
- Budget for framing and flashing corrections: 40-50 years of Central Florida humidity has done real damage behind original aluminum frames.
- TruePane’s estimates include a written allowance for hidden framing work, so the final invoice doesn’t shock you.
Serving Union Park, FL - Our Local Coverage Area
We’re based in the Union Park 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 Installation in Union Park
Union Park is an unincorporated Orange County community, so it has no city hall or municipal building department. All window and door replacement permits route through the Orange County Building Division, which enforces Florida Building Code requirements including wind-load compliance and product approval documentation at permit submission. We handle the permit package for every Union Park job, including the product specs the county requires before they’ll sign off. Call (813) 320-9346 and we’ll walk you through the process for your specific home.
No. Jalousie windows found in Union Park’s converted Florida rooms and rear additions are non-compliant with current Florida Building Code energy and structural requirements, which means any replacement triggers a full permitted window replacement with approved product specs and wind-load documentation submitted to Orange County Building Division. A glass-only swap isn’t a legal option. The good news: a proper replacement with a modern double hung or casement unit dramatically improves energy performance and hurricane protection. Call us for a free estimate on what a compliant replacement actually costs.
You handle it by having an allowance written into the contract before work starts, which is how TruePane writes every Union Park quote. Just off Dean Road, we replaced a row of failed aluminum jalousies in a 1970s concrete-block ranch’s converted Florida room. When our tech pulled the frames, there were undersized lintels and rotted jambs the homeowner hadn’t budgeted for. The allowance covered it, we got written approval before proceeding, and the job cleared Orange County inspection on the first pass. If a contractor doesn’t include that allowance, assume the surprise will be yours.
Orange County Building Division requires product approval documentation at permit submission proving the replacement windows meet Florida Building Code wind-load requirements for the inland wind-speed zone Union Park falls within. TruePane prepares this documentation for every permit we pull, including the manufacturer’s product approval numbers and installation details. We don’t submit a permit package until the paperwork is complete, which is why our Union Park jobs don’t get stuck waiting on document requests. Call (813) 320-9346 for a free estimate and we’ll explain exactly what your home requires.
Fogged glass between the panes means the insulated glass unit seal has failed. In most Union Park homes, the fix is a full sash replacement rather than a simple glass swap, especially if the original frames are aluminum and 40-plus years old. Once we open the wall, we often find water damage and rot that also need addressing before the new unit goes in. We quote the full replacement, including the framing allowance, upfront. Call (813) 320-9346 for an exact quote on your fogged windows, estimates are free.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Union Park and surrounding Orange County communities with permitted, warrantied window installation that’s done right the first time.
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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