Windows in this part of Florida do more work than windows almost anywhere else in the country. They're a structural component of the building envelope during a windstorm, a barrier against salt-laden air that eats through weak metal in a few seasons, and a filter against UV load that's close to the most intense in the continental U.S. Alpine Exteriors installs, repairs and replaces windows across Sarasota County with those three jobs in mind, not just the way a window looks from the street.
We handle full-house window replacement, single-opening repairs, new construction window packages, and retrofits on older homes where the original openings are out of square or out of code. That includes swapping aging aluminum single-pane units for impact-rated replacements, adding missing openings, fixing failed seals and fogged double-pane glass, re-glazing frames that are otherwise sound, and coordinating window work with siding or stucco repair when water has gotten behind the trim. We also do pre-purchase window inspections for buyers under contract on older homes in Sarasota, Venice and the barrier islands, since window condition is one of the most common surprises in a Florida home inspection.
What we don't do is sell windows that aren't rated for this wind-borne debris region. If a product doesn't carry a valid Florida Product Approval number for the design pressure your opening needs, it doesn't go on the truck.
Frame material matters more here than in most climates because of the combination of salt exposure and UV. We install and service:
Shutters and other opening protection are a separate category from the windows themselves, and we'll talk through both if a client wants to protect existing non-impact glass rather than replace it. It's a legitimate lower-cost path for some homes, with the trade-off that you have to deploy them before a storm rather than having permanent protection.
We start with an on-site measurement and a walk of every opening, not just a quote off square footage. Older Sarasota County homes often have openings that are slightly out of square or have been re-framed at some point, and that changes what fits. From there we go over frame material, glass package, and design pressure requirements for each elevation of the house, since wind load isn't uniform — a corner opening or one facing open water usually carries a higher requirement than a sheltered opening on the same house.
Once product is selected, we handle the permit application and product approval documentation with Sarasota County, then place the order. Lead times on impact-rated product have generally run several weeks to a few months depending on manufacturer and configuration — that's the honest range, and it's worth planning around rather than assuming a rush job before storm season. Installation itself is usually one to three days for a full-house job depending on opening count and whether stucco or trim repair is involved. After install, the county inspector signs off before the permit closes, and we do a final walkthrough with the client to test operation, check weep holes and drainage, and confirm everything seals correctly.
Sarasota County sits in Florida's wind-borne debris region under the Florida Building Code, though it isn't part of the High-Velocity Hurricane Zone that covers Miami-Dade and Broward Counties farther south. That distinction matters: openings here need products with a valid Florida Product Approval number tested to the relevant impact and pressure standards, but they don't need Miami-Dade NOA approval specifically, which is a different and sometimes more expensive documentation path. Design pressure requirements vary by exposure — a home directly on Siesta Key or Longboat Key facing open Gulf water typically carries a higher wind load than a similar house a few miles inland near Lakewood Ranch, so the same window model isn't automatically approved everywhere in the county.
Salt air is a slower but constant issue. Homes within a mile or so of the coast see faster corrosion on unprotected hardware, hinges and aluminum frames than homes farther inland, which is part of why we push clients on the barrier islands toward marine-grade finishes and stainless components even when it adds cost. Intense, near-year-round UV also breaks down lower-grade vinyl and gasket materials faster here than in most of the country, which is one reason we don't recommend the cheapest available vinyl line for west- or south-facing openings.
Flood zone status is worth checking before any large window project on the barrier islands or along the coast in Venice and Osprey. If a home sits in a mapped AE or VE flood zone and the scope of work counts as a substantial improvement under FEMA and county rules, it can trigger additional requirements beyond the window opening itself. We flag this during the quote when an address falls in a flood zone so there are no surprises at permit review. Permitting itself runs through Sarasota County's building department, and condo and HOA buildings — common on Longboat Key and Siesta Key — often add their own architectural review on top of the county permit, so we build that extra step into the timeline rather than assuming it away.
Alpine Exteriors serves homeowners and property managers throughout Sarasota County, including Sarasota, Siesta Key, Longboat Key, Venice, Osprey and Lakewood Ranch. Barrier island jobs — Siesta Key and Longboat Key in particular — get extra attention on material selection and hardware given direct salt exposure, while inland communities around Lakewood Ranch have more flexibility on frame material without sacrificing durability.
Either can satisfy the wind-borne debris requirement for existing openings, depending on your situation. Impact glass is permanent protection and generally what's required for new or replacement openings under current code; shutters protect existing non-impact glass but have to be deployed ahead of a storm. We'll walk through both options and the cost difference for your specific openings.
Installation itself typically runs one to three days depending on the number of openings and whether trim or stucco repair is involved. The longer variable is lead time on ordering impact-rated product, which has generally run several weeks to a few months — plan ahead of hurricane season rather than during it.
On many buildings on Siesta Key and Longboat Key, yes — condo associations often require architectural review of window replacement in addition to the county permit, and some specify approved product lines or frame colors. We ask about HOA requirements early so that step doesn't stall the permit timeline.
Yes, window replacement requires a permit through the Sarasota County building department along with a final inspection before the permit closes. We handle the permit application and product approval documentation as part of the job.
If you're weighing impact glass against shutters, dealing with fogged or failing seals, or planning ahead of hurricane season, Alpine Exteriors can walk your property, explain what your specific openings require under Sarasota County code, and give you a straightforward quote with real material trade-offs — not just a sales pitch for the most expensive option on the truck.