Free in-home measure and quote — PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows Across Lake Forest
Impact window replacement in Lake Forest runs $800 to $1,500 per window installed, and most retrofits on the 1970s-era CBS homes here take one to two days once the units arrive from fabrication. Custom orders typically run 4 to 6 weeks. The 33179 ZIP sits entirely inside Miami-Dade’s High-Velocity Hurricane Zone, which means every window you replace has to carry a Miami-Dade Notice of Acceptance before the county will even issue a permit. Call (844) 901-4551 and we’ll walk you through what your specific home needs.
Why Winslow Windows & Doors Is Lake Forest’s Preferred Impact Windows Company
Ed Winslow has been running this company since 2011, and his name goes on every job we do in Lake Forest. We’ve worked on more NE 22nd Avenue ranches and North Miami-Dade CBS tract homes than we can count, and we know exactly what happens when you pull a 1982 jalousie out of a screened porch wall. The framing behind it is usually powdering from salt-laden Biscayne air, and the header was rarely strapped the way current code demands. We do not get surprised by this. We plan for it.
Lake Forest homeowners call us because we answer the phone like a neighbor, not a call center. A live person picks up 24 hours a day, seven days a week. Our technicians arrive in uniform, background-checked, and we publish our address and license number because we have nothing to hide. If a repair from us is not done right, our Done Right Promise means we come back and make it right, period.
Our Impact Windows Services in Lake Forest
Impact Windows
Full impact-window replacement is the core of what we do in Lake Forest. We install PGT, CGI, CWS, and other Miami-Dade approved lines, matched to the design pressures of each individual opening. Your window is not a generic size, and we do not treat it like one. Every unit gets measured, ordered, and set by a crew that knows HVHZ rules cold.

Permit-Ready Retrofit Compliance
In Lake Forest, a single impact-window replacement triggers a building permit, and that permit triggers a county product approval review. We pull the permit, handle the paperwork, and make sure every unit has its Miami-Dade NOA documentation attached before inspection. If the inspector wants a header strap added or a wire re-routed, we handle it on the spot. You are not left holding a correction notice.

Structural Opening Reframing
This is the service nobody quotes for, and the one Lake Forest homeowners end up needing most. Original 1970s aluminum sliders were installed into framing that has spent 40 years absorbing South Florida humidity. When the old sash comes out, the jamb is often undersized, corroded, or completely rotted. We reframe openings to current wind-load standards before the impact unit goes in, and we write that contingency into your contract as a clearly priced allowance. No midnight phone calls asking for more money.

Emergency Board-Up and Storm Prep
When a storm is tracking toward North Miami-Dade and a window fails, we board up fast and get permanent impact glass ordered. We have been called out to Golden Glades, Ives Estates, and all over 33179 in the days leading up to a hurricane watch. Live person, 24/7. That is not marketing copy. That is how we run the phones.

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 Lake Forest
We are an authorized installer for PGT, CGI, CWS, ES Windows, ECO Window Systems, and several other manufacturers. For Lake Forest homeowners, that means we can match existing window styles on a partial replacement, order custom geometric glass, and pull manufacturer-backed warranty support without a phone tree. CGI and PGT units are what we most commonly set in this ZIP because their large-missile ratings clear Miami-Dade review without hand-wringing, and their lead times are predictable. We stock common hardware and seal components locally so service calls do not drag for weeks.
Common Impact Windows Problems We See in Lake Forest Homes
- Corroded jamb framing on original 1970s sliders. Salt-laden air from Biscayne Bay works its way into every hairline gap around the old frame, and by the time we pull the unit out, the bottom ten inches of the jamb is often gone. We reframe before the new window goes in, or the full wind load rating is worthless.
- Jalousie windows in screened porches and utility rooms. These are still all over Lake Forest’s 70s build era homes, and under HVHZ rules they cannot legally stay in place on a permitted job. If you are replacing windows, the inspector will flag any remaining jalousie. We plan for the enclosure or replacement from the first site visit so it does not blindside you later.
- Failed waterproofing on existing openings. Lake Forest’s afternoon downpours leave standing water against the bottom plate of the rough opening. When we pull old sash, we often find rot that only became visible after the trim came off. We flash and seal every opening properly before the new unit is set.
- Undersized headers with no straps. Homes built before the post-Andrew code overhaul frequently have headers that are not tied to the top plate the way current HVHZ standards require. The window company that ignores this fails inspection. We fix it before the inspector sees it.
What Impact Windows Costs in Lake Forest
Impact windows in Lake Forest generally run $800 to $1,500 per window installed for standard openings. Impact single-hung units fall between $900 and $1,800. Large or custom openings, like a picture window facing the canal or an oversized slider, land in the $2,500 to $5,000 range. Whole-home packages across a typical four-bedroom CBS ranch start around $8,000 and can exceed $25,000 depending on opening count and structural work.
What moves the price in Lake Forest is rarely the glass. It is what we find when the old unit comes out: corroded jambs, unstrapped headers, rotted bottom plates, and jalousie openings that legally have to go. We write those contingencies into your quote as line-item allowances with fixed unit prices, so you know the worst-case number before we start. The free in-home measure and written quote is yours by calling (844) 901-4551.
Florida Pays You Back
Florida has real incentives layered for homeowners in Lake Forest, and they stack. My Safe Florida Home matching grants can cover up to $10,000 toward qualifying wind-mitigation upgrades, and impact windows are a core eligible item. Florida also waives sales tax on impact-resistant windows and doors, which saves you 6 to 7 percent on the entire project. On the federal side, the 25C energy credit returns 30 percent of the product cost, up to $600 per year, on qualifying impact units. And after a wind-mitigation inspection, which typically runs $75 to $150, most carriers credit an average of around 25 percent off the windstorm portion of the premium. The final number is between you and your insurer, but the mechanism is proven.
Why Opening a Lake Forest Wall Changes the Quote
If you live in a 1970s CBS home off NE 22nd Avenue or north toward Ives Estates, the single biggest source of surprise on an impact-window job is what is hiding behind the old frame. Lake Forest’s original aluminum sliders were installed into unstrapped headers and jambs that have spent four decades absorbing humidity and salt air. We know this, so we inspect first and write the possible structural work into your contract as a priced allowance. If the header needs strapped, it has a fixed line-item cost. If the jamb needs rebuilt, same thing. Nothing gets done without your signature on a written change order. That is how we keep a Lake Forest retrofit from going sideways.
We quoted a full impact-window retrofit on a CBS ranch off NE 22nd Avenue last spring. When our crew pulled the first original aluminum jalousie from the utility room, we found the header had never been strapped and the framing was already powdering from salt-laden Biscayne air. We wrote the needed jamb rebuild and an approved large-missile PGT casement into a change order, got the homeowner’s signature that afternoon, and passed final inspection without a single failed wind-mitigation check. That is the job done the way it should have been done in 1978.
Impact Windows vs. Hurricane Shutters in Lake Forest
Shutters cost less up front, but they only work if someone is home to deploy them, and they eat storage space and morning light the other 364 days a year. Impact windows are always on. No panels to carry out to the storage shed while the wind picks up, no rusted accordion tracks, no debating at 11 p.m. whether the storm is really coming. For Lake Forest homeowners inside the HVHZ, permanent impact-rated glazing also matters to insurers in a way shutters cannot match. The wind-mitigation credit follows the window, and a buyer inherits it. A shutter rod in the garage does not survive the closing table. We install impact windows as a permanent structural upgrade, not storm hardware.
We Also Serve Cities Near Lake Forest
Our Impact Windows crews work all around North Miami-Dade. If you are in Ives Estates, Golden Glades, Norland, or Aventura, we cover those neighborhoods with the same local permitting knowledge and pricing discipline. Impact Windows in Lake Forest is our home base for the 33179 ZIP, but Ed’s name rides along to every job within reach.
Serving Lake Forest, FL — Our Local Coverage Area
We’re based in the Lake Forest 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 — Impact Windows in Lake Forest
Yes. Any window or door replacement in Lake Forest, even one unit, requires a Miami-Dade building permit, and the unit must carry a Miami-Dade Notice of Acceptance before the county will approve it. We pull the permit, attach the NOA, and coordinate inspection as part of the job. Call (844) 901-4551 and we will explain the full process for your specific opening.
It usually means the original 1970s framing had rotted or corroded, the header was never strapped, or a jalousie window triggered an HVHZ code upgrade the old quote did not include. We build priced allowances into every Lake Forest contract so these discoveries do not surprise you. The number you see is the number you signed, plus any written change order you approve before we touch the opening.
No. Under HVHZ rules, jalousie windows cannot legally remain in place on a permitted project in Lake Forest. If the inspector sees one during a window replacement, the job stops until it is enclosed or replaced with an impact-rated unit. We identify jalousie openings during the initial site visit so they are in the contract from day one, not discovered mid-project.
We write a line-item allowance for each possible structural contingency: jamb rebuild, header strapping, rotted bottom plate replacement, jalousie enclosure. Each allowance has a fixed unit price. If we open the wall and the jamb is fine, the allowance is removed from the final invoice. If we need it, you approve a written change order before any work happens. Ed Winslow’s signature is not on a job where the price floats.
They can, significantly, after a wind-mitigation inspection. Most carriers credit an average of around 25 percent off the windstorm portion of the premium once impact-rated openings are documented. The inspection typically costs $75 to $150, and we recommend scheduling it right after final inspection on your window job. Call (844) 901-4551 for a free estimate and we will walk you through the documentation your insurer needs.
Get a Free Lake Forest Impact Window Estimate
If you are in 33179 and tired of quoting around, call (844) 901-4551. We send a background-checked, uniformed technician to measure every opening, inspect the framing, and hand you a written line-item quote before we leave. No pressure, no vague numbers, no call center. Ed Winslow owns this company, and his Done Right Promise stands behind every window we set in Lake Forest.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Lake Forest with licensed and insured impact-window installation.










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