Windows take a specific kind of beating in inland Central Florida. It isn't salt air chewing through hardware like it does on the coast — it's the daily cycle of intense UV baking frames and seals, afternoon thunderstorms that can drop hail-sized ice or drive rain sideways for twenty minutes, and attic temperatures that push well past 130 degrees in summer and radiate heat straight down through window headers and trim. Alpine Exteriors installs and replaces windows across Orlando, Winter Park, Kissimmee, Apopka, Oviedo, Lake Mary and Windermere, and most of the calls we get aren't from people chasing a look — they're from homeowners whose windows are fogging between the panes, sticking in their tracks, or letting in enough heat that the AC runs constantly.
Window work falls into a few distinct categories, and it's worth knowing which one your house actually needs before you start pricing anything. Retrofit (insert) replacement keeps your existing frame in the wall and installs a new window inside it — faster, less invasive, and usually less expensive, but it slightly reduces the glass area and only works if the old frame is still structurally sound. Full-frame replacement removes everything down to the rough opening, including exterior trim and flashing, and is the right call when there's water damage, rot, or you're changing the window size or style. We also handle new-construction window installs on additions and full remodels, and straightforward repairs — balance replacement, reglazing, hardware fixes, weep hole clearing — for windows that don't need full replacement yet.
A window job isn't just swapping glass. Flashing and sealant details around the rough opening matter as much as the window unit itself, because a well-built window installed with a lazy flashing job will still leak the first time a summer storm drives water sideways into the wall.
Frame material is the first real decision. Vinyl is the most common choice in this market — it doesn't corrode, needs no painting, and costs less than the alternatives, but it does expand and contract with temperature swings and can discolor over many years of direct UV exposure, especially on west-facing walls. Aluminum frames are slimmer and can handle larger spans, which matters for picture windows or sliders, but aluminum conducts heat efficiently, which works against you in a climate where the goal is keeping heat out. Fiberglass holds up the best against heat cycling and UV over time and takes paint well, but it costs more up front — for most homeowners it's a decision between paying more now or replacing vinyl again in fifteen to twenty years instead of twenty-five-plus.
On glass, low-E (low-emissivity) coatings are close to standard at this point because of what AC costs here — they reflect a meaningful share of solar heat while still letting visible light through, though they do add cost and can very slightly tint the glass. Laminated glass — a plastic interlayer sandwiched between two panes — is worth discussing separately from "impact windows" as a category; it doesn't stop hail from cracking the outer pane, but it holds the glass together instead of letting it shatter into the room, which is the main safety benefit. Full impact-rated assemblies (frame and glass tested and rated together) cost more than laminated retrofit glass and are usually reserved for homes where the owner wants storm protection without shutters, not a requirement most inland Central Florida homes are under.
On style, double-hung and single-hung windows remain the most common replacements because they match what's already in most of these houses' rough openings. Casement windows seal tighter when cranked shut, which helps with wind-driven rain during a fast-moving storm, but they need clearance to swing outward. Sliders and picture windows work well for larger openings and better views but generally use more aluminum or wider vinyl sightlines to support the glass area.
We start with an on-site visit to measure openings, check for rot or settling around the frames, and talk through frame material, glass, and budget. From there we put together a written proposal — line items, not a vague lump sum — so you can see what you're actually paying for. Once a contract is signed, material lead time is usually the longest single stretch of the whole job; custom sizes and certain glass packages can take several weeks to arrive, and that's worth planning around if you're timing the work around a season or an event.
Before installation begins on most jobs in this area, a permit needs to be pulled with the local jurisdiction — Orange County, Seminole County, or Osceola County depending on where the property sits — and the work has to meet current Florida Building Code requirements for the wind zone, which apply here even though we're well inland. On install day, old windows come out, the rough opening gets inspected and repaired if there's hidden damage (this happens more often than homeowners expect, especially around older wood-framed openings), new units go in, and flashing and sealant get installed per code. Most jobs finish inspection within a day or two of substantial completion, and we do a walkthrough with you afterward to check operation, weather sealing, and finish work before calling it done.
Central Florida's summer weather pattern is convective — heat builds through the morning and triggers thunderstorms most afternoons, often with hail embedded in the stronger cells. That's a different stress than what coastal properties deal with; there's no salt corrosion issue here, but hail impact on glass and screen sections is a real consideration, and wind-driven rain during a fast-building storm tests flashing and weep systems more often than a slow coastal rain event would. Windows installed with weak sealant beads or shortcut flashing details tend to show it here within a year or two, not decades.
Attic heat is the other factor that's easy to underestimate. Unvented or poorly vented attics in this region regularly run 130-150°F in summer afternoons, and that heat radiates down through window headers and top-floor walls, working against low-E coatings from the inside. It also accelerates UV and heat-cycle wear on vinyl frames and seals faster than it would in a milder climate, which is part of why frame material selection matters more here than in, say, the Midwest.
On the permitting side, Orange County (and the surrounding counties Alpine Exteriors works in) enforces the Florida Building Code's wind-load and product-approval requirements on window replacements regardless of distance from the coast — every window installed needs a Florida Product Approval or Miami-Dade NOA number matching its rated wind zone, and permits typically require an inspection before the job is considered closed. Skipping the permit is a real option some contractors quietly take, but it creates problems at resale and voids manufacturer warranties tied to proper installation documentation.
We install and replace windows throughout Orlando, Winter Park, Kissimmee, Apopka, Oviedo, Lake Mary and Windermere, along with the surrounding unincorporated areas of Orange, Seminole and Osceola counties. Permit requirements and inspection timelines vary slightly by jurisdiction, and we handle that paperwork as part of the job rather than leaving it to the homeowner.
Not by code, in most cases — inland Central Florida isn't in the high-velocity hurricane zone that mandates impact glass the way South Florida's coast is. Some homeowners choose impact or laminated glass anyway for hail protection, added security, and noise reduction, but it's an upgrade decision here, not a requirement, and it's worth pricing against standard glass with a well-built shutter system if storm protection is the main goal.
Installation itself for a whole-house job usually runs one to three days depending on the number of openings and whether it's retrofit or full-frame. The bigger variable is material lead time before that — custom sizes and certain glass packages can take several weeks to arrive, so the calendar time from signed contract to finished inspection is usually longer than people expect based on the install day alone.
Usually, but the size of the difference depends heavily on what you're replacing. Swapping single-pane aluminum windows for low-E double-pane units typically shows a noticeable difference on summer cooling bills; if you're already on reasonably modern double-pane windows, the upgrade to a better low-E coating or frame material will help but won't be as dramatic. Attic insulation and duct sealing often move the needle as much as windows do, and it's worth having both evaluated rather than assuming windows alone will solve a high AC bill.
Yes — window replacement is permitted work under the Florida Building Code in Orange County and the surrounding counties, and it requires a final inspection before the permit closes. This applies to retrofit and full-frame replacements alike, not just new construction. We pull permits as part of every job.
If your windows are fogging, sticking, or letting in more heat and noise than they should, it's worth getting a straight assessment of what's actually wrong before deciding between repair and replacement. Alpine Exteriors provides on-site estimates for homeowners across Orlando, Winter Park, Kissimmee, Apopka, Oviedo, Lake Mary and Windermere — we'll walk the openings with you, explain what we're seeing, and give you a written proposal with real material and labor line items, not a number pulled out of the air. Reach out to schedule a visit.