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Fast, Reliable Energy-Efficient Windows Across Union Park
For a Union Park homeowner, the question behind energy-efficient windows is usually simple: what will it cost, and will the permit process turn into a headache? Here’s the straight answer. A full replacement of original aluminum single-pane windows in a typical Union Park CBS ranch runs roughly $650 to $1,150 per opening, installed and permitted through Orange County Building Division. Most jobs wrap in one day per opening once the permit clears. Call (813) 320-9346 and we’ll walk the house with you and price it in writing.
We’re not a franchise truck passing through. Our crews work Union Park’s side streets off Dean Road, Rouse Road, and University Boulevard every week. We know the difference between a 1968 block home and a 1984 addition, and we know which one still has the original jalousie panels hiding in the back.
Why TruePane Windows & Doors Is Union Park’s Preferred Energy-Efficient Windows Company
Union Park’s unincorporated status means every window permit goes through Orange County Building Division, not a city hall counter. That one fact changes how the job gets quoted, scheduled, and inspected. Most of the homeowners we work for here have been in their house since the Reagan administration. They’ve already dealt with a contractor who didn’t pull the right permit, or who left stucco cracked around a stuck frame. They call us because they don’t want a second story like that.
Dale Kessler founded this company in 2008 after years of watching out-of-true installs and voided warranties go unfixed. The rule he still writes on the whiteboard is the one our crews repeat on every Union Park job: if the pane is not true, the job is not done. Our installers are background-checked, uniformed, and trained to measure every opening twice before the first screw comes out. We register both manufacturer warranty layers in writing before the truck leaves the driveway, and the workmanship is covered by a 90-Day Done Right Promise. No paperwork fights. No arguing.
When you call, a live person answers. Not a voicemail tree. That’s the same whether you call at noon on a Tuesday or two in the morning because a storm cracked a pane and the humidity is rolling in. We schedule Union Park work with crews who know the Orange County inspection rhythm, so the permit doesn’t stall the job.
Our Energy-Efficient Windows Services in Union Park
Here’s what we actually install and audit in Union Park, and why it matters on these particular lots.
Low-E & Argon Gas Glass
Most Union Park homes built between the late 1960s and mid-1980s still have clear single-pane glass with no low-E coating and no gas fill. That means the afternoon sun off a west-facing block wall turns the living room into a kiln. Low-E glass with argon fill drops the U-factor substantially, and on a 1,800-square-foot CBS ranch, that’s the single biggest lever for cutting the summer A/C bill. We quote the glass packages side by side on paper so you can see exactly what you’re buying, not a salesman’s talking point.

ENERGY STAR Replacement Windows
Florida’s current energy code minimums are nothing like what Union Park homes were built to. A 1972 aluminum single-hung doesn’t come close. ENERGY STAR-rated replacement windows designed for the Southern climate zone meet those minimums and qualify for whatever utility or manufacturer rebates apply at the time. We’re an authorized installer for manufacturers including PGT, Simonton, and Ply Gem, and we’ll show you the ENERGY STAR label and the Florida Building Code wind-load approval docs before we submit for permit.

Double & Triple Pane Windows
For homes backing up to University Boulevard or sitting close to the east-west cut-through streets, noise is part of the deal. A double-pane insulated unit cuts a lot of that. Triple pane adds more thermal resistance and more acoustic dampening, though it adds weight and cost, and in an older CBS opening it sometimes means reframing the buck. On most Union Park ranches, a quality double-pane low-E unit with argon is the right square deal. We’ll tell you when triple pane is overkill, because it’s our job to sell the right window, not the pricier one.

UV-Blocking & Fade Protection
Faded carpet, bleached sofa arms, yellowed window sills. That’s what two decades of unfiltered Florida sun does to a Union Park living room. Low-E coatings don’t just reflect heat; they cut the UV band that fades fabric and flooring. If the house has original jalousie panels, the fade is worse because there’s nothing in the glass to stop it. When we replace those with a low-E insulated unit, the fading stops getting worse the same month.

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
We stock and install more than a dozen manufacturer lines, and we keep replacement parts for the brands already in Union Park homes. If you’ve got aging PGT single-hungs from a 1990s remodel or Simonton sliders that need new balances, we can usually restore them same week. For full replacements, we quote PGT, Simonton, and Ply Gem lines side by side on paper, with the warranty durations stated next to each. You see exactly what each option costs and what’s covered, before you sign anything.
Common Energy-Efficient Windows Problems We See in Union Park Homes
After years of working these streets, here’s what we find behind the curtains in Union Park.
- Original single-pane aluminum frames on 1960s through 1980s CBS ranches. Summer humidity condenses on the inside of the glass, the tracks corrode, and sashes start sticking or falling out. It’s not a maintenance issue; the window has simply outlived its design life by twenty years.
- Jalousie panels in converted Florida rooms and rear additions. These are so far below current Florida Building Code energy minimums that opening a permit for any other work triggers a full replacement requirement. A simple glass swap usually isn’t legal or possible.
- Fogged panes in old insulated glass units. A failed seal means the argon fill has escaped and the U-factor has jumped. Most homeowners don’t notice until the electric bill arrives in August. If the glass looks milky or sweaty between the panes, the seal is gone.
- Stuck side-access replacements on tight lots. Union Park side setbacks are narrow. Old windows on the side of the house are often unreachable from a ladder without staging on a neighbor’s property. We see jobs where unpermitted crews broke the stucco and left foam exposed, and Orange County’s inspector flagged it. That’s a repair that could have been avoided with a proper access plan.
Pricing for Energy-Efficient Windows in Union Park, FL
A full replacement of original aluminum single-pane windows in Union Park generally runs $650 to $1,150 per opening for a standard low-E double-pane vinyl unit, installed and permitted. If the existing frame is a jalousie, add $150 to $300 per opening for the extra framing work and the required full-permit scope. Triple pane adds $200 to $350 per opening. Window energy audits run $89 as a maintenance visit, and we credit that toward the job if you proceed. These are this market’s real ranges based on recent Union Park permits. Your quote will reflect your openings, your frame condition, and your access, in writing, before any work starts.
Call (813) 320-9346 for a free estimate, and we’ll give you the numbers for your house, not a brochure range.
We Also Serve Cities Near Union Park
Our Energy-Efficient Windows crews work the full corridor, so if you’re in Acacia Villas, Alafaya, Altamonte Springs, or Altoona, the same Orange County permitting knowledge applies. Learn more about our Energy-Efficient Windows work or see how we serve Union Park and the surrounding communities.
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 - Energy-Efficient Windows in Union Park
Yes. Because Union Park is unincorporated, every replacement window and door permit goes through Orange County Building Division, not a city hall. That means the permit package must include Florida Building Code wind-load product approval documents at submission. Plan for the permit to take a few days to a week depending on Orange County’s current queue, and schedule the inspection the same week as the install. We handle the whole package, from the wind-load docs to the final inspection sign-off.
Call (813) 320-9346 and we’ll tell you exactly where your project sits in the county process.
In practice, no. Original Union Park jalousie windows are so far below current Florida Building Code energy and structural minimums that installing new glass into those frames doesn’t meet code. Once a permit is opened, Orange County requires a full permitted replacement with approved product specs. We replace the whole window with a fusion-welded vinyl or aluminum frame that holds a proper low-E insulated unit, and we pull the full permit so it passes inspection the first time.
Tight side setbacks mean we often can’t set a ladder on the side yard without crossing onto a neighbor’s property. That changes the access plan, the crew size, and sometimes the staging approach. On a recent job off Dean Road, we staged all materials on the driveway so the shared side yard stayed clear, and the neighbor never lost use of their own lot. If your side-access window requires scaffold setup instead of ladder work, expect that to add $100 to $250 per opening depending on reach and footing. We’ll show you that line item in the written quote before we start.
Replace the original single-pane aluminum windows, starting with the west and south elevations. Those get the most afternoon sun and drive the most A/C load. A low-E double-pane unit with argon fill, installed correctly and permitted through Orange County, typically drops the solar heat gain on those rooms enough to matter on the first full summer bill. A window energy audit will show you which openings are losing the most, so you can prioritize where the money goes.
Call (813) 320-9346 to schedule the audit, and we’ll put the findings in writing.
You don’t need a party-wall notice in the legal sense for most Union Park single-family lots, but we treat it as common courtesy. If we’re working on a wall close to the property line or a shared carport wall, we knock on the neighbor’s door before we start, tell them what we’re doing, and confirm we’ll keep our materials on your side. On tight lots, that ten-minute conversation prevents a call to the county and keeps the job moving. We’ll handle it as part of the job, at no extra charge.
If you’re looking at an Energy-Efficient Windows project in Union Park, call (813) 320-9346 for a free estimate. We’ll walk the house, check the frames, tell you honestly what needs replacing and what can wait, and put the numbers in writing.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Union Park and Orange County.
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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