Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across Three Lakes
Impact windows and doors in Three Lakes, FL must carry a Miami-Dade County Notice of Acceptance (NOA) with a design pressure matched to each specific opening, not merely a Florida Product Approval. A typical single-opening replacement runs $1,200-$2,400 installed, while whole-home retrofits on 1970s-1980s CBS homes range $18,000-$45,000 depending on opening count and anchor complexity. Call (786) 321-3319 to schedule your measured survey and written estimate.
We’re the Impact Windows & Doors team at Sightline Windows & Doors Kendall, and we serve Three Lakes from our Miami office with crews that know the difference between a Broward County permit packet and a Miami-Dade HVHZ submittal. Three Lakes isn’t a generic south Florida suburb - it’s concrete block construction from the 1970s and 1980s, original aluminum sliders that predate Hurricane Andrew, and a permitting sequence that looks more like commercial work than a standard residential swap. We’ve templated openings on homes off residential streets backing the Everglades buffer, submitted NOA documentation with county inspectors, and handed homeowners the compliance packet their underwriters required at renewal.
Why Sightline Windows & Doors Kendall Is Three Lakes’s Preferred Impact Windows & Doors Company
Three Lakes homeowners don’t hire us because we’ve been around since 2012. They hire us because we hand them the written price before a tool is lifted and leave a documented photo record when the job is done. Haven Clause 1 means the measured survey you keep and the final invoice are the same document. No change orders. No “we found rot” surprises.
Our crews are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3, Verified Crews. The person at your door in Three Lakes is the person on the record. Calls are answered by a live person, 24/7, not a voicemail queue.
We’ve installed 18,000+ windows and doors since 2012, every one with a written price before work started and a documented photo record when finished. The 365-Day Done Right Promise is stamped on every job under the Haven Standard, not offered as a courtesy. If it’s not done right, we make it right. Period.
Our response time to Three Lakes is same-day or next-day for measured surveys, with permits and inspections coordinated through Miami-Dade County’s HVHZ process. We know the inspectors, the submittal requirements, and the difference between a product that passes in Orlando and one that passes on a Three Lakes CBS wall.
Our Impact Windows & Doors Services in Three Lakes

Impact-Resistant Windows
Every impact-resistant window we install in Three Lakes carries a current Miami-Dade County NOA with a design pressure rating matched to the opening. This isn’t optional - it’s the law in Miami-Dade’s High Velocity Hurricane Zone. We specify PGT WinGuard, CGI Estate Collection, or ViewLux impact-rated lines depending on your performance tier and budget, not what we have in stock. On a 1978 CBS ranch off a residential street backing the Everglades buffer, our crew pulled original single-pane aluminum sliders set in masonry with no buck framing and installed PGT WinGuard impact-rated glazing anchored on a Miami-Dade-approved anchor pattern with a new buck; the jamb depths varied enough that each opening had to be templated individually. We submitted the Miami-Dade NOA numbers with the permit so the homeowner could hand the underwriter documented compliance at renewal.

Hurricane Impact Windows
Three Lakes sits in the most active Atlantic hurricane landfall corridor. Hurricane impact windows here aren’t an upsell - they’re a practical necessity that determines whether your homeowner’s policy gets renewed. We install hurricane-rated units from PGT, CGI, and ES Windows with laminated glass interlayers that hold together even if the outer lite shatters. The key detail most cheap quotes skip: the NOA has to match the exact design pressure for your wall height, exposure category, and proximity to the Everglades buffer. We calculate that in the measured survey and write it into the quote you keep.

Single Hung Impact Windows
Single hung impact windows are the workhorse replacement for original vertical jalousie and single-pane sliders in Three Lakes’s 1970s-1980s CBS homes. The bottom sash operates; the top is fixed. We see these specified most often on street-facing bedrooms and bathrooms where ventilation matters but opening width is limited. The critical detail for Three Lakes: the anchor pattern must be Miami-Dade-approved for masonry-set installation, and the buck framing has to accommodate the deeper jamb of an impact-rated unit. Original frames in these homes have neither. We template each opening and specify the anchor and buck in the written quote.

Double Hung Impact Windows
Double hung impact windows - both sashes operable - make sense in Three Lakes homes where cross-ventilation matters, particularly on lots near the Everglades buffer where afternoon breezes can offset cooling loads. Both sashes tilt in for cleaning, which matters on two-story CBS ranches where ladder access is tight. The trade-off is weight: double hung units require heavier balance systems and more precise jamb plumb. We measure for that in the survey and specify the hardware grade in writing.

Horizontal Roller & Sliding Impact Windows
Horizontal roller and sliding impact windows replace the original aluminum sliders that dominate Three Lakes’s pre-1992 housing stock. These are the units we template most carefully - original masonry openings in 1970s CBS construction weren’t built to the tolerances impact-rated rollers require. The sill pan, threshold drainage, and perimeter sealant spec have to handle near-constant Everglades humidity that degrades standard sealants in half the time you’d see in drier inland markets. We specify a sealant rated for continuous high-RH exposure and document the product and application in the photo record.

Wind Mitigation & HVHZ Code Compliance
This is where most Three Lakes estimates diverge - and where cheap quotes fail. Wind mitigation & HVHZ code compliance isn’t a line item you add; it’s the framework the entire job is built on. Every product must have a current Miami-Dade NOA. Every anchor pattern must be Miami-Dade-approved for the substrate. Every permit submittal must include the NOA numbers, the design pressure calculations, and the installation details. We pull the permit, coordinate the inspection, and hand you the compliance documentation your underwriter needs. A cheap quote skips one or more of these steps. The window goes in. The county fails it. The wind mitigation credit never materializes. The premium goes up anyway.

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 - matched to what your Three Lakes opening requires, not what we have in stock. For impact-rated window and door work in Miami-Dade’s HVHZ, we most often draw from PGT WinGuard and CGI Estate Collections for the core impact line, with Therma-Tru entry systems and ViewLux architectural lines where the opening calls for it. We don’t stock inventory in a warehouse; we order to the measured survey, which means no “close enough” substitutions and no pressure to clear old stock. Lead times run 4-8 weeks depending on the manufacturer and specification complexity, and we build that into the project timeline we give you in writing.
Common Impact Windows & Doors Problems We See in Three Lakes Homes

- Florida Product Approval substituted for Miami-Dade NOA. A cheap quote installs a Florida Product Approval unit on a Three Lakes opening instead of one with a current Miami-Dade NOA and the correct design pressure. It fails the county inspection and voids the wind mitigation credit. We see this most often after homeowners bring us a competitor’s quote for our Free Second Opinion - the unit is fine for Orlando, illegal here.
- Face-screwed installations in masonry without approved buck framing. Original 1970s-80s aluminum frames in Three Lakes CBS walls have no buck framing or approved anchor pattern, so units get face-screwed into masonry and leak or loosen within a couple of storm seasons. The measured survey we keep documents the existing condition; the quote specifies the buck and anchor pattern required.
- Perimeter sealant failure from Everglades humidity. Near-constant Everglades humidity corrodes untreated aluminum and degrades perimeter sealant, so a job that skips a proper sealant spec and threshold detail fails at the perimeter long before the laminated glass interlayer ever does. We specify sealant rated for continuous high-RH exposure and photograph the application.
- Insurance-deadline-driven replacements with no compliance documentation. Insurers writing or renewing policies on Three Lakes homes built before August 1992 increasingly require proof of impact-rated openings. A window that isn’t documented with the NOA, permit, and inspection record doesn’t count. We hand you the compliance packet; cheap quotes leave you to figure out the paperwork.
Pricing for Impact Windows & Doors in Three Lakes, FL
Here’s what impact windows and doors cost in Three Lakes, based on the jobs we’ve measured and installed in the area:
| Service | Typical Range in Three Lakes |
|---|---|
| Single opening replacement (impact-rated window) | $1,200 - $2,400 |
| Single opening replacement (impact-rated door) | $2,800 - $5,500 |
| Whole-home retrofit, small CBS home (8-12 openings) | $18,000 - $28,000 |
| Whole-home retrofit, mid-size CBS home (15-22 openings) | $32,000 - $45,000 |
| HVHZ permit and inspection coordination | Included in quoted price |
| Wind mitigation documentation package | Included in quoted price |
Three factors push Three Lakes jobs toward the higher end of these ranges: the need for Miami-Dade-approved buck framing in original masonry openings, the design pressure calculations required for HVHZ compliance, and the insurance-documentation sequence that adds coordination time but saves premium dollars long-term. Jobs on homes near the Everglades buffer sometimes require additional moisture-management detailing at the sill and threshold. The price we write is the price you pay - Haven Clause 1, Have it in writing. No change orders. Call (786) 321-3319 for your measured survey and written estimate.
We Also Serve Cities Near Three Lakes

Our crews work throughout Miami-Dade’s HVHZ corridor. We also serve Three Lakes neighbors in Kendall, The Crossings, Pinecrest, and Palmetto Estates with the same measured-survey process, written pricing, and documented compliance packages. Permit requirements and product approvals are consistent across these markets, though housing stock and opening conditions vary by neighborhood age and construction type.
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. Three Lakes is in Miami-Dade County’s High Velocity Hurricane Zone, and every impact-rated window and door installed here must carry a current Miami-Dade County Notice of Acceptance with a design pressure matched to the specific opening. A Florida Product Approval alone is not sufficient and will fail inspection. Call (786) 321-3319 and we’ll verify the NOA status of any product you’re considering.
They will if the installation is documented with the NOA, permit, and inspection records your underwriter requires. Three Lakes homes built before August 1992 face increasing pressure from insurers to prove impact-rated openings; without documentation, the window doesn’t count toward wind mitigation credits. We hand you the compliance packet at completion. Call (786) 321-3319 to discuss how our documentation package interfaces with your policy renewal.
The gap usually comes down to three things the cheap quote omits: Miami-Dade NOA-compliant products (more expensive than Florida Product Approval units), approved buck framing and anchor patterns for original masonry openings, and the permit/inspection/documentation sequence required for insurance compliance. A $12,000 quote that skips these becomes a $25,000 job when the county fails the inspection and the insurer denies the credit. We itemize all three in the written quote you keep. Call (786) 321-3319 for a Free Second Opinion on any competitor’s estimate.
We can, but the original opening usually needs modification. 1970s-1980s CBS homes in Three Lakes were built with aluminum sliders set directly in masonry, no buck framing, and no approved anchor pattern. An impact-rated replacement requires a new buck, Miami-Dade-approved anchors, and often a deeper jamb to accommodate the thicker impact glazing. We template each opening individually and specify the modifications in the measured survey. Call (786) 321-3319 to schedule a survey of your specific openings.
Miami-Dade HVHZ permits for residential window and door replacement typically take 2-4 weeks for initial review, with another 1-2 weeks for inspection scheduling depending on county volume. We pull the permit as part of our standard process and coordinate the inspection sequence. The timeline is built into the project schedule we give you in writing. Call (786) 321-3319 to check current county turnaround times and get your project on the calendar.
Ready for your measured survey and written estimate? Call Sightline Windows & Doors Kendall at (786) 321-3319. We’ll schedule a measured survey of your Three Lakes home, deliver a written quote that matches the survey document, and handle the HVHZ permit and compliance documentation from start to finish. Estimates are free. Second opinions on competitor quotes are free. The price we write is the price you pay.
Written by Sonia Raman, Owner at Sightline Windows & Doors Kendall, serving Three Lakes since 2012 under the Haven Standard.










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