Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Impact Windows & Doors in Three Lakes, FL
Impact window and door replacement in Three Lakes typically runs $650-$1,400 per opening for standard vinyl-framed units and $1,200-$2,800 for aluminum-framed or large-format sliding systems, with full-home projects on 1980s-era CBS homes ranging $18,000-$45,000 depending on opening count and the waterproofing repairs the rough cavities require. Every unit must carry a current Miami-Dade County Notice of Acceptance (NOA) because Three Lakes sits entirely within the High Velocity Hurricane Zone. Call (786) 442-3200 and we’ll bring a written estimate to your door - the same document we measure from, with no change orders once work starts.
Why Sightline Windows & Doors Pinecrest Is Three Lakes’s Preferred Impact Windows & Doors Company
We’ve measured openings in Three Lakes since our Miami office began dispatching crews to South Miami-Dade, and the pattern is consistent: homes built between 1983 and 1992 with original aluminum single-pane sliders and hollow-core fiberglass entry doors that predate every modern HVHZ requirement. Our technicians are background-checked, uniformed, and arrive with license numbers visible - Haven Clause 3, Verified Crews. The 365-Day Done Right Promise applies to every Three Lakes job, and we leave a documented photo record of the completed work, not as an upsell but as standard evidence under Haven Clause 4.
Calls route to a live person, 24/7. No callback window, no voicemail queue. The measured survey we perform on your Three Lakes property is the document you keep, and the written quote cannot differ from it - Haven Clause 1, Have it in writing, has governed every one of the 18,000+ openings we’ve installed since 2012.
Our Impact Windows & Doors Services in Three Lakes

Impact-Resistant Windows
Every impact-resistant window we specify for Three Lakes carries a current Miami-Dade NOA and is rated for large-missile impact at the speeds this HVHZ zone requires. We draw from PGT, CGI, and CWS lines depending on your opening dimensions, exposure rating, and the structural capacity of the original 1980s CBS frame. The real specification work happens at the rough opening: we measure jamb squareness, check the existing sill pan drainage, and document whether the drainage plane behind your original aluminum slider was detailed with foil-faced batt over furring - a pre-Andrew assembly that fails today’s flashing standard.

Hurricane Impact Windows
Hurricane impact windows for Three Lakes homes are not a product category separate from HVHZ compliance; they are the same thing, and the distinction matters because some competitors sell “hurricane rated” units that lack the specific Miami-Dade NOA this county’s building department requires. We specify laminated glass interlayers, aluminum or reinforced vinyl frames, and hardware tested to cyclic pressure loads that match Three Lakes’s exposure to Biscayne Bay wind corridors roughly ten miles east. On a 1987 CBS house off SW 184th Street near the lakes, our tech pulled the original aluminum single-pane slider and found the rough jamb had been shimmed with untreated wood furring that had absorbed decades of afternoon thunderstorm moisture, and the sill pan under the unit drained straight into the block instead of out. We installed a PGT impact-rated glazing unit with a laminated glass interlayer and a large-missile rating, rebuilt the jamb with pressure-treated shims, cut a proper sill pan that daylighted to the exterior, and added an allowance line in the contract so the homeowner could see the framing and waterproofing repair priced separately before we touched the opening. Had the unit not carried a current Miami-Dade NOA we would have been at a dead stop with the inspector.

Single Hung Impact Windows
Single hung impact windows remain the most common replacement format in Three Lakes’s 1980s-era bedrooms and secondary living spaces, where the original aluminum single-hung units have oxidized from salt-laden air and lost their operability. We measure the existing rough opening against the manufacturer’s NOA-approved installation detail - not all single hung frames fit the same masonry pocket - and we price the waterproofing scope separately so you see what the wall requires before we remove the first screw. Our Impact Windows & Doors team specifies ViewLux and PGT lines for this format depending on U-factor and SHGC targets.

Double Hung Impact Windows
Double hung impact windows suit Three Lakes homes where both sashes need operability for ventilation, particularly in second-story rooms where afternoon thunderstorms create rapid pressure changes and the ability to open the top sash matters for air circulation. We specify units with tilt-in sashes for cleaning from inside - a practical consideration given the frequency of salt and mineral deposits from evaporated storm water on Three Lakes homes near the drainage canals. The frame material choice, aluminum versus vinyl, depends on your elevation relative to the water table and the corrosion history we document during our measured survey.

Horizontal Roller & Sliding Impact Windows
Horizontal roller and sliding impact windows replace the aluminum slide-by units that dominate Three Lakes’s 1980s construction, particularly in living rooms and master suites facing the lakes or canal views. These large-format openings are where the waterproofing scope most often exceeds the glass scope: the original sill pan, if it existed at all, was frequently a simple aluminum extrusion without end dams or pan flashing, and the drainage plane behind the unit was never detailed to shed water to the exterior. We specify CWS and PGT horizontal roller systems with tested sill pan assemblies and integrate them into a new flashing sequence that daylight’s to the exterior, not into the block cavity.

Wind Mitigation & HVHZ Code Compliance
Wind mitigation and HVHZ code compliance is not a separate service from window replacement in Three Lakes; it is the frame within which every replacement must operate. Because this subdivision sits entirely inside Miami-Dade’s High Velocity Hurricane Zone, every permit application triggers review of the opening’s structural attachment, the product’s NOA validity, and often the adjacent wall assembly’s compliance with post-Andrew standards. We pull permits as standard practice, not as an add-on, and we price any code-triggered corrections - electrical bonding updates, roof-to-wall strap extensions, framing reinforcement - as allowance lines in the original contract so the homeowner approves the scope before we cut the wall.

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.
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AfterTrusted Brands We Service in Three Lakes
We specify from eight manufacturer lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux - selected by what the opening requires, not by what is in stock. For Three Lakes’s HVHZ environment and 1980s CBS construction, we most frequently draw from PGT’s aluminum and vinyl impact lines, CGI’s coastal-rated systems, and CWS’s large-format sliding and horizontal roller units. Each manufacturer’s NOA is verified current before we specify, and we maintain direct distributor relationships in Miami-Dade so replacement components for warranty or service work are available without the lead times that delay out-of-market installers. The brand on your window is less important than the NOA in the permit file and the flashing detail behind the frame; we choose the product that satisfies both.
Common Impact Windows & Doors Problems We See in Three Lakes Homes

- Permit-triggered code upgrades on 1980s CBS walls. Because Three Lakes is fully HVHZ, pulling a permit on a replacement window or door often forces corrections to the original 1980s electrical bonding and roof-to-wall straps once the inspector can see into the jamb. Costs that never appear on a generic window estimate appear as allowance lines in our contract, priced and approved before we touch the opening.
- Failed waterproofing behind original aluminum sliders. The 1980s drainage detailing on these CBS walls was not built for today’s flashing requirements, so re-using the existing rough opening without a new sill pan and pan flashing leaks into the block at the first hard afternoon storm. We document the cavity condition during our measured survey and price the repair separately.
- Non-compliant shutter-plus-door combinations. Many Three Lakes homeowners put accordion shutters on 1980s aluminum sliding glass doors and assume they are covered, but the door unit itself must carry a current Miami-Dade NOA. At renewal or on a permit, the underwriter or inspector rejects the assembly and the door replacement is forced anyway. We verify the existing door’s NOA status during our initial survey.
- Salt-accelerated frame oxidation on lake-facing elevations. Three Lakes’s position roughly ten miles from Biscayne Bay, combined with standing water from the namesake lakes and nearby drainage canals, creates a corrosive environment that destroys aluminum window hardware and vinyl frame welds faster than inland Central Florida. Full impact-rated replacement with marine-grade hardware is the practical path; maintenance windows are not viable.
Pricing for Impact Windows & Doors in Three Lakes, FL
Standard vinyl-framed single hung impact window in Three Lakes: $650-$980 per opening, including NOA-compliant unit, installation, and permit. Aluminum-framed single hung or double hung: $1,100-$1,650. Large-format horizontal roller or sliding impact window: $1,800-$2,800, with the higher end reflecting the waterproofing scope when the original sill pan failed. Full-home replacement on a typical Three Lakes 3-bedroom CBS home with 12-18 openings: $18,000-$32,000 for vinyl, $28,000-$45,000 for aluminum or mixed material.
What moves the price: the condition of the rough opening, the presence of failed waterproofing or untreated wood furring, code-triggered electrical or structural corrections, and the specific exposure rating required for your elevation and wind zone. We do not quote from satellite imagery. Our measured survey produces the written price you keep, and that price does not change unless you approve a written change order - Haven Clause 5, No surprises.
Free Second Opinion on Any Written Estimate: bring us a competitor’s quote and we will review it at no charge, line by line, against the scope we measured.
| Product Type | Price Range (Three Lakes) |
|---|---|
| Vinyl single hung impact window | $650 - $980 |
| Aluminum single/double hung impact window | $1,100 - $1,650 |
| Horizontal roller / sliding impact window | $1,800 - $2,800 |
| Impact-rated entry door (Therma-Tru or equivalent) | $2,200 - $3,800 |
| Full-home replacement (12-18 openings, vinyl) | $18,000 - $32,000 |
| Full-home replacement (12-18 openings, aluminum) | $28,000 - $45,000 |
We Also Serve Cities Near Three Lakes

Our crews work throughout South Miami-Dade and the central corridor, including Three Lakes and neighboring Pinecrest, Coral Gables, Palmetto Bay, and Kendall. Dispatch and scheduling are coordinated from our Miami office; crews serve Three Lakes locally with the same measured survey process and written pricing standard that governs every installation under the Haven Standard.
Serving Three Lakes, FL - Our Local Coverage Area
We’re based in the Three Lakes 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 & Doors in Three Lakes

Yes. Because Three Lakes sits entirely within Miami-Dade County’s High Velocity Hurricane Zone, every window and door replacement - regardless of quantity - must carry a current Miami-Dade NOA. The building department will not issue a permit without it, and the inspector will red-tag the job if the product label does not match the NOA on file. We verify NOA status before we specify any product and document it in your permit packet. Call (786) 442-3200 for a free estimate - we’ll confirm the NOA requirement during our measured survey.
The 1980s drainage plane on Three Lakes CBS walls - typically foil-faced batt over furring - was never detailed to today’s flashing standard, so removing the original aluminum slider exposes moisture-damaged shims, sill pans that drain into the block, and occasionally electrical bonding that predates current code. Once the permit is pulled and the inspector can see the cavity, corrections are mandatory, not optional. We inspect the rough opening during our measured survey and price any likely repairs as allowance lines before we cut the wall. Call (786) 442-3200 to schedule your survey.
Yes, if the door unit itself lacks a current Miami-Dade NOA. Accordion shutters protect the opening from debris impact, but they do not satisfy the HVHZ requirement for the door assembly’s structural performance under cyclic wind pressure. Many Three Lakes homeowners discovered this at insurance renewal or when a permit triggered inspection. We verify your existing door’s NOA status during our initial survey and specify a compliant replacement if needed. Call (786) 442-3200 and we’ll check the label.
Impact windows can reduce premiums, but the discount depends on your carrier’s wind mitigation form and the totality of your home’s protection - roof geometry, wall construction, and opening protection all factor. In Three Lakes, where many homes retain original non-impact openings, the upgrade from single-pane aluminum to HVHZ-compliant impact units typically produces measurable savings on the windstorm portion of the policy. We document the product ratings and installation details that your inspector needs for the mitigation form. Call (786) 442-3200 and we’ll explain what documentation we provide.
We stop work, photograph the condition, and present a written change order with the repair scope and price before we proceed. No work continues without your written approval - Haven Clause 5, No surprises. This is why our measured survey includes a cavity assessment where possible, and why we build allowance lines into the original contract for the most common Three Lakes conditions: failed waterproofing, untreated wood furring, and code-triggered electrical corrections. Call (786) 442-3200 for an estimate - our pricing is fixed unless you approve a change in writing.
Schedule Your Free Estimate in Three Lakes
Call (786) 442-3200 to schedule your free measured survey. We’ll arrive with a uniformed, background-checked technician, perform a documented inspection of your openings and rough cavities, and leave you with a written price that does not change - the same document we build from, under Haven Clause 1. Every Three Lakes job carries the 365-Day Done Right Promise and leaves a documented photo record. No voicemail queues, no callback windows: a live person answers, 24/7.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Three Lakes under the Haven Standard since 2012.










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