Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Three Lakes
Window replacement in Three Lakes runs $680-$1,850 per opening for full-frame impact-rated units, with most residential jobs completing in one to two days once permits clear. Every window we install here carries a Miami-Dade County Notice of Acceptance matched to its exact jamb and anchoring configuration - the HVHZ standard that stops at the Broward county line.
We’re the Window Replacement team at Sightline Windows & Doors, and we dispatch to Three Lakes from our Miami office. Crews are on local roads daily, and we know the permitting arc at the Miami-Dade Permitting, Environment and Regulatory Affairs office where Three Lakes applications route. Call (786) 808-5792 to schedule your free measured survey - the written price we hand you is the same document that governs the installation.
Why Sightline Windows & Doors Three Lakes Is Three Lakes’s Preferred Window Replacement Company
We’ve replaced windows in the CBS tract homes off SW 56th Street, in the neighborhoods near Three Lakes Park, and along the corridors where 1970s-1990s construction still wears its original single-pane aluminum. That repetition matters: we know which original window brands were spec’d by which builders, where the corrosion patterns show up first, and how the county inspector will read the NOA documentation on a Three Lakes permit.
Our technicians are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3, Verified Crews. The 365-Day Done Right Promise is stamped on every job, not offered as a courtesy. And every completed opening leaves a documented photo record, included as standard evidence.
Calls are answered by a live person, 24/7. No voicemail queue, no callback window.
Our Window Replacement Services in Three Lakes

Full Frame Replacement
Most Three Lakes homes need this, not a retrofit. The 1970s-1990s CBS stock here was built with single-pane aluminum frames that predate HVHZ impact standards entirely - the frame itself cannot satisfy current design pressure, and corrosion at the threshold undercuts any assembly built inside it. We remove the entire unit, rough opening to exterior, then set a new impact-rated frame with laminated glass interlayer and anchor it to the block per the NOA’s specified fastening pattern. A typical full-frame replacement in Three Lakes runs $1,200-$1,850 per opening.

Insert Window Replacement
Insert replacement is rare in Three Lakes because the existing frames usually fail the HVHZ test, but it applies in limited cases: newer construction with already-impact-rated frames that need glazing or hardware replacement, or second-story applications where the original frame is structurally sound and the NOA permits insert configuration. We measure the existing jamb depth, check the frame wall thickness against the manufacturer’s insert chart, and tell you definitively whether this path is open. When it is, an insert runs $680-$950 per opening.

Vinyl Replacement Windows
Vinyl frames in Three Lakes must still carry the Miami-Dade NOA - the material does not exempt the product from HVHZ approval. We specify vinyl from ECO Window Systems and CWS where the thermal break and multi-chamber design outperform aluminum on U-factor, critical for the cooling-load reduction that pays back in this climate. Salt-laden humidity still reaches the hardware and weep channels, so we document maintenance points in the photo record we leave you. Vinyl full-frame in Three Lakes: $1,050-$1,550 per opening.

Energy-Efficient Upgrade
The UV load here degrades non-impact glazing seals within just a few years, and the cooling season runs eight months. We specify low-SHGC, low-U-factor glass packages - often from ES Windows or Mr-Glass - with argon fill and warm-edge spacers where the budget allows. The upgrade pays double in Three Lakes: lower kWh draw and the wind-mitigation premium discount when impact-rated glass is part of the package. Energy-efficient full-frame impact units run $1,350-$1,850 per opening.

Window Maintenance & Care
Annual inspection of the weep holes, hardware torque, and seal condition extends the service life in this environment. We offer maintenance visits that include a documented photo record of frame condition, operability testing, and a written scope if replacement is approaching. Maintenance visits in Three Lakes start at $180.

What happens when you call
- 1
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 draw from eight manufacturer lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux - specified by what the opening requires, not by what is in stock. For Three Lakes’s HVHZ environment, we lean on CWS and ES Windows for impact-rated vinyl and aluminum systems with documented NOA performance at the design pressures this zip code demands. ECO Window Systems supplies thermally broken vinyl where energy performance is the priority. We do not substitute brands mid-job; the product named in your written quote is the product that arrives.
Common Window Replacement Problems We See in Three Lakes Homes

- Corroded aluminum thresholds and frame legs. The salt-laden humidity in Three Lakes attacks aluminum faster than in central Florida markets. We regularly find pitting at the sill that has compromised the structural connection between frame and block - a condition that insert replacement cannot fix and that the county inspector will flag.
- Chalked-out glazing seals from UV degradation. The intense south Florida sun degrades non-impact glazing seals within three to five years. On a 1985 CBS tract home off SW 56th Street, we pulled original single-pane aluminum sliders whose seals had turned to powder, then set PGT impact-rated glazing with a laminated glass interlayer, matching each unit’s NOA number to its jamb detail before the county inspection.
- Failed jalousie windows in pre-1980s additions. Some Three Lakes homes still carry jalousie assemblies in Florida rooms or rear wings. These have no HVHZ path at all - full removal and replacement with a permitted impact-rated unit is the only compliant option.
- Out-of-county crews with Broward-approved products. A Florida Product Approval without a Miami-Dade NOA matched to the site’s installation configuration stalls the permit and fails final inspection. The county portal requires the exact NOA number tied to the specific jamb detail, wall thickness, and anchoring pattern - a granular step that trips up crews who work primarily north of the county line.
Pricing for Window Replacement in Three Lakes, FL
| Service | Typical Range per Opening |
|---|---|
| Full-Frame Impact Replacement (aluminum) | $1,200 - $1,850 |
| Full-Frame Impact Replacement (vinyl) | $1,050 - $1,550 |
| Energy-Efficient Upgrade (low-SHGC package) | $1,350 - $1,850 |
| Insert Replacement (limited applicability) | $680 - $950 |
| Maintenance & Care Visit | $180 - $280 |
Total job cost scales with opening count, wall condition, and whether the original frame requires stucco repair after removal. We pull all permits and schedule inspections; the permit fee is itemized in your written quote, not buried. Call (786) 808-5792 for an exact figure - estimates are free, and we review competitor quotes at no charge under our Free Second Opinion policy.
We Also Serve Cities Near Three Lakes

Our crews work daily across Miami-Dade’s southwest corridor. We also handle Window Replacement in Three Lakes and neighboring communities: The Crossings, Palmetto Estates, Richmond West, and Kendall. The same HVHZ standards apply throughout, and we route permits through the same Miami-Dade office for all five areas.
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 - Window Replacement in Three Lakes

Yes - every replacement window and door permitted in Three Lakes must carry a Miami-Dade County Notice of Acceptance number tied to the exact installation configuration. This is an HVHZ requirement that does not apply across the county line in Broward, so a window legal in Pembroke Pines cannot be permitted here. Your quote from Sightline includes the specific NOA number for each unit; we match it to the jamb detail before the county inspection. Call (786) 808-5792 to review the documentation on your project.
No - in nearly all Three Lakes homes, the original 1970s-1990s aluminum frames cannot satisfy current HVHZ design pressure and show corrosion at the threshold that undercuts any retrofit assembly. Full frame removal and replacement is required for permit approval and for the wind-mitigation discount. We verify this with a measured survey; if your frame is the rare exception, we will document why in writing.
Upgrading to full impact-rated glazing with documented NOA compliance unlocks Citizens Insurance wind-mitigation premium discounts unavailable to neighbors outside the HVHZ or to homeowners without opening protection. The homeowner in our SW 56th Street field vignette saw their wind mitigation report move from no opening protection to full credit, with a premium drop at renewal. The key is the documentation: the NOA, the inspection pass, and the photo record we leave you. Call (786) 808-5792 to discuss how this applies to your policy.
Specify low-SHGC (below 0.25) and low-U-factor (below 0.35) glass with argon fill and warm-edge spacers. The UV load here degrades standard seals within three to five years, and the eight-month cooling season makes thermal performance a priority. We source these specifications from ES Windows and Mr-Glass where the performance data is documented and the NOA is current.
Miami-Dade’s product-approval portal requires contractors to tie the exact NOA number to the specific installation configuration on every permit application - wall thickness, jamb detail, anchoring pattern, and design pressure rating. Out-of-county crews who work primarily in Broward or Palm Beach routinely submit Florida Product Approvals without the Miami-Dade NOA match, or they mismatch the NOA to the installation type. The permit stalls, the inspection fails, and the timeline stretches by weeks. We file these applications weekly; our pass rate reflects that repetition. Call (786) 808-5792 to schedule a survey with a crew that knows the portal.
Ready for your written price? Call (786) 808-5792 to schedule your free measured survey. You’ll keep the document; the written quote we produce from it cannot differ. That’s Haven Clause 1, and it’s been the rule since we started in 2012.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Three Lakes since 2012 under the Haven Standard.










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