Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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Before
AfterTrusted Impact Windows & Doors for Three Lakes Homeowners
Impact windows and doors in Three Lakes typically run $850 to $2,400 per opening depending on size, glazing specification, and whether the installation requires HVHZ (High Velocity Hurricane Zone) compliance. Most homeowners in the Three Lakes area complete a full-home replacement in two to five working days, with the measured survey and written quote delivered before any product is ordered.
Since 2012, Sightline Windows & Doors has installed more than 18,000 openings across Miami-Dade County - including Coral Gables Impact Windows & Doors projects - under the Haven Standard. Every job begins with a measured survey the customer keeps, and the written price cannot differ from that document. We are independently owned and operated, and our technicians are background-checked, uniformed, and identified by license number before arrival. In Three Lakes, where homes built between 1985 and 2010 often carry original aluminum single-pane windows that no longer meet current wind-borne debris codes, we regularly find framing rot behind stucco that would have gone undetected without a proper sightline measurement. Call (786) 808-5792 to schedule your free measured survey. Our phones are answered by a live person, 24/7.
What Our Impact Windows & Doors Service Includes
Impact-Resistant Windows
Impact-resistant windows are laminated glass units tested to withstand wind-borne debris at speeds up to 175 mph, required for all new and replacement installations in Miami-Dade’s High Velocity Hurricane Zone. In Three Lakes, we see many homes with original windows that predate the post-Hurricane Andrew building code updates of 1994, particularly in the townhouse clusters near SW 137th Avenue where construction peaked in the late 1980s. Sightline specifies impact-resistant windows from CWS, ES Windows, or ECO Window Systems based on the opening’s structural reading, not inventory position, and every unit carries a Florida Product Approval number traceable to the specific test report.
Hurricane Impact Windows
Hurricane impact windows are the HVHZ-compliant subset of impact-resistant products, meeting the most stringent large-missile impact and cyclic pressure testing under Miami-Dade County Protocols PA 201, PA 202, and PA 203. Three Lakes sits within the HVHZ boundary, so replacement windows must carry the Miami-Dade Notice of Acceptance (NOA) for the specific product and installation method used. We verify NOA compliance before quoting, not after installation, because Haven Clause 1 requires the written price to account for every code requirement from the first measurement.
Single Hung Impact Windows
Single hung impact windows have a fixed upper sash and a vertically operable lower sash, making them the most common replacement choice for bedrooms and secondary living spaces in Three Lakes ranch-style homes. The fixed upper sash reduces air infiltration paths and simplifies the impact glazing assembly, which typically lowers the per-opening cost by 15 to 20 percent compared to double hung units of equivalent size. We specify single hung products from Mr-Glass or CWS when the opening height exceeds 48 inches and the primary ventilation need is at the sill level, as in most Three Lakes master bedrooms facing west toward the afternoon sun load.
Double Hung Impact Windows
Double hung impact windows allow both sashes to operate, providing superior ventilation control and easier exterior glass cleaning from inside the home, a significant advantage for second-story installations common in Three Lakes’ two-story pool homes near the lakes themselves. Both sashes must carry independent impact-rated glazing and reinforced interlocks to maintain HVHZ compliance, which adds hardware complexity but delivers measurable operational value. We measure the rough opening to 1/16 inch and specify either CWS or ES Windows double hung units with true sloped sills, not flat adapters, because the drainage path determines whether the weep system functions during the sustained wind-driven rain of a tropical system.
Horizontal Roller & Sliding Impact Windows
Horizontal roller impact windows operate on a tandem roller system with the sash moving parallel to the frame, ideal for wide openings where a casement or hung unit would be structurally impractical or aesthetically undesirable. In Three Lakes, we install these frequently in rear-facing living rooms and covered patios where the original aluminum sliding glass doors have failed, and the homeowner wants to maintain the panoramic view without the security and weather-sealing compromises of a retrofit film or shutter system. Our measured survey includes a frame plumb reading because horizontal rollers tolerate almost no racking; if the opening is out of square by more than 3/16 inch, we specify a subframe or full rough-opening rebuild in the written scope.
Vinyl Impact Windows
Vinyl impact windows use multi-chambered PVC extrusions with steel or aluminum reinforcement at the meeting rails and lock stiles, offering superior thermal performance (U-factors as low as 0.25) compared to aluminum frames without the maintenance requirements of wood-clad products. Three Lakes’ cooling-dominated climate makes vinyl an economically rational choice for most orientations, particularly east and west elevations where solar heat gain coefficient (SHGC) below 0.25 yields measurable load reduction. We specify ECO Window Systems or ViewLux vinyl lines when the measured wall cavity depth accommodates the 3-1/4 inch frame depth without exterior trim modification, which we confirm during the initial survey.
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.
Brands We Service for Impact Windows & Doors
We install and service impact windows and doors from eight verified manufacturer lines, specified by what the opening requires, not by what is in stock. For impact-rated glazing in Three Lakes, we regularly specify CWS for their laminated glass technology and Miami-Dade NOA breadth across single hung, double hung, and horizontal roller configurations. We’ve installed hundreds of CWS units in the Three Lakes area and in nearby Homestead Impact Windows & Doors projects, and maintain direct distributor relationships for warranty claim support and replacement part availability. ES Windows provides our go-to specification for large-format fixed and architectural impact windows where the design pressure rating exceeds 70 psf, common in custom homes near the water features where wind exposure categories shift. Our crews have completed ES Windows installations with individual lite sizes exceeding 60 by 96 inches, requiring crane-assisted placement and structural engineering review.
ECO Window Systems delivers strong value in vinyl impact configurations for homeowners prioritizing thermal performance, and we specify their products when blower-door testing or infrared imaging reveals significant air leakage at existing aluminum frames. Mr-Glass serves our custom and geometric window needs, including radius tops, octagonals, and trapezoids that must still carry HVHZ approval. Whether you have CWS, ES Windows, ECO Window Systems, Mr-Glass, or any other make, we can help. Our measured survey identifies the existing manufacturer and series when possible, and we research NOA compatibility before recommending a replacement specification.
Before
AfterSigns You Need Impact Windows & Doors Right Now
- Visible corrosion or pitting on existing aluminum frames. In Three Lakes’ humid subtropical climate with salt air intrusion from Biscayne Bay, aluminum window frames oxidize at the weep slots and sill angles first. We regularly find frame wall thickness reduced by 30 percent or more in homes within two miles of the water, which compromises the structural attachment of impact-rated replacements and requires subframe reinforcement in the scope.
- Condensation between panes of existing insulated glass. Seal failure allows moisture into the air space, destroying the low-e coating and any argon fill; in impact units, it also degrades the polyvinyl butyral (PVB) interlayer adhesion over time. We replace these with new laminated impact glazing specified to the original or improved design pressure rating.
- Difficulty latching or locking windows, or visible sash racking. Operating force increases when the frame twists or the sash rollers degrade, but in impact windows, latch engagement is also a pressure-resistance component. A window that cannot fully lock may not perform under negative wind pressure, and we flag this as a code compliance issue in our written survey.
- Interior water staining at window heads or jambs after moderate rain. This indicates flashing failure or frame drainage blockage, both of which accelerate substrate decay behind the finish. In Three Lakes stucco construction, we find that 40 percent of impact window replacements require some degree of moisture-damaged framing repair, which we document with photos and include in the written scope before pricing.
- Your home still relies on hurricane shutters or plywood boarding for storm protection. Shutters require installation time you may not have, storage space, and regular maintenance; plywood is ineffective against positive pressure breaches and creates fire egress hazards. Impact windows provide continuous protection without deployment, and most Three Lakes homeowners recover the incremental cost through insurance premium reductions and eliminated shutter maintenance within seven to ten years.
Our Impact Windows & Doors Process - Step by Step
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Measured survey and documentation. Our technician arrives at your Three Lakes home with a uniform, license identification, and a digital measurement system accurate to 1/16 inch. We record every opening’s width, height, depth, plumb, level, and square; photograph existing conditions including frame corrosion, moisture staining, and substrate damage; and note any structural or electrical interferences. You receive a copy of this survey before we leave.
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Written scope and fixed pricing. Haven Clause 1 requires that the measurement and the quote be the same document. Within 48 hours, we deliver a written scope listing every opening by room location, the specified product line and configuration, the design pressure rating, the installation method, any required framing or flashing repair, and the fixed price per opening and total. This price does not change unless you modify the scope.
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Product order and permit application. Upon acceptance, we order your specified products with Florida Product Approval documentation and submit permit applications to Miami-Dade County or the City of Miami, depending on your Three Lakes address jurisdiction. We pull all required permits; you do not interface with the building department. Typical permit turnaround in Miami-Dade is 10 to 14 business days for window replacement.
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Installation by verified crews. Haven Clause 3 requires background-checked, uniformed technicians identified by license number. Our crew arrives with the documented photo protocol active from arrival; they remove existing units, repair framing as specified, install new impact windows with approved fasteners and flashing integration, and seal to the air barrier. We do not subcontract installation to unverified crews.
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Inspection, documentation, and warranty activation. We schedule required municipal inspections and accompany the inspector. Upon passing, we deliver your documented photo record showing before, during, and after conditions of every opening; the final invoice matching the written quote; and the 365-Day Done Right Promise documentation. Haven Clause 4 means the evidence travels with the job, not as an upsell.
How Much Does Impact Windows & Doors Cost in Three Lakes?
A typical single hung impact window replacement in Three Lakes runs $850 to $1,450 per opening, including product, installation, permit, and standard disposal. Double hung impact windows range $1,100 to $1,800 depending on size and hardware specification. Horizontal roller impact windows for wide living room openings typically cost $1,400 to $2,400. Large fixed architectural units or custom geometric shapes from Mr-Glass can exceed $3,500 per opening when crane access or structural engineering is required.
Several factors move pricing within these ranges. Frame condition is the most significant: we find that roughly 40 percent of Three Lakes homes require some wood repair or subframe installation, which adds $200 to $600 per opening depending on extent. Product tier matters; CWS and ES Windows standard lines occupy the lower portion of our ranges, while enhanced thermal performance or custom color matching moves toward the upper bound. Opening accessibility affects labor; second-story installations over tile roofs or pool enclosures require scaffolding or pump lift rental. Finally, HVHZ design pressure requirements vary by exposure and building height, with coastal exposure or two-story construction typically requiring higher DP ratings.
To avoid overpaying, obtain a written quote that specifies the exact product series, design pressure rating, and installation method, not a per-opening average. We provide free second opinions on any competitor’s written estimate; bring us their scope and we will review product specification, code compliance, and pricing at no charge. Our estimates include permit fees, disposal, and the documented photo record as standard, not as additions. Call (786) 808-5792 for your free measured survey and written quote.
Impact Windows & Doors Near Three Lakes - Our Service Area
We install and replace impact windows and doors throughout Three Lakes and adjacent Miami-Dade communities including Impact Windows & Doors in The Crossings, Impact Windows & Doors in Palmetto Estates, Richmond West, Kendall, South Miami Heights, Palmetto Bay, Pinecrest, Cutler Bay, Olympia Heights, Princeton, and Coral Gables. Typical response time for a measured survey in Three Lakes is within 48 hours of contact, with permit-ready quotes following within two business days of the survey. We maintain active Miami-Dade County and City of Miami contractor registrations for all jurisdictions in our service area.
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.
Frequently Asked Questions - Impact Windows & Doors in Three Lakes
Impact windows and doors are laminated glass assemblies with a polyvinyl butyral (PVB) or ionoplast interlayer bonded between glass lites, tested to withstand large-missile impact and cyclic pressure loading required in Miami-Dade’s High Velocity Hurricane Zone. Unlike standard windows with shutters, they provide continuous protection against wind-borne debris, forced entry, and UV degradation without deployment or storage. Every product we specify carries a Miami-Dade Notice of Acceptance traceable to the specific test protocol and installation method.
A complete home replacement in Three Lakes typically requires two to five working days on site, depending on opening count and the degree of framing repair required. Product lead times vary by manufacturer and specification; CWS and ES Windows standard lines typically deliver in four to six weeks, while custom finishes or geometric shapes from Mr-Glass may extend to eight weeks. We schedule installation only after product arrival and permit approval to avoid open-hole conditions. Call (786) 808-5792 to schedule your measured survey and receive a project timeline specific to your home.
Most Three Lakes homeowners invest between $15,000 and $35,000 for complete home impact window and door replacement, with per-opening costs ranging from $850 for standard single hung units to $2,400 or more for large horizontal rollers or custom configurations. The total depends on opening count, frame condition, product specification, and any structural repair required. We deliver a written, line-item quote after the measured survey, and our free second opinion service reviews competitor estimates at no charge. Call (786) 808-5792 for your exact quote.
Yes. We install and service all four brands, specifying by opening requirements rather than inventory position. CWS serves our high-volume single and double hung needs; ES Windows covers large-format and high-design-pressure applications; ECO Window Systems provides vinyl thermal performance options; and Mr-Glass handles custom and geometric configurations. We maintain direct distributor relationships and can source warranty replacement parts for each line. Whether your existing windows are from these manufacturers or another brand entirely, we can evaluate, repair, or replace them.
We do not offer same-day installation for planned impact window and door replacement, as proper measurement, product ordering, and permitting cannot be compressed without compromising code compliance or the Haven Standard. However, we do respond to post-storm damage with emergency board-up and temporary weather sealing to secure the opening, followed by expedited measurement and specification for permanent replacement. Our phones are answered by a live person 24/7, and we prioritize storm-damaged homes in our survey scheduling. Call (786) 808-5792 to report damage and initiate emergency response.
Every impact window and door installation is covered by the 365-Day Done Right Promise under the Haven Standard: if any aspect of the installation is not done right, we make it right, documented in writing, not as a verbal courtesy. Manufacturer warranties vary by brand, with most providing 10 to 20 years on the vinyl or aluminum frame and 10 years on the insulated glass unit. We register all manufacturer warranties on your behalf and provide the documentation as part of your project closeout package.
Clear a three-foot access path around each interior opening, remove window treatments and wall-mounted items near the openings, and secure pets in a separate area during installation hours. Our crew protects floors and furniture with drop cloths as part of standard protocol, but fragile items should be moved by the homeowner. We handle exterior protection, debris containment, and final cleaning. No special preparation is required for the measured survey itself; our technician works around normal household conditions. Call (786) 808-5792 to schedule your survey and receive a complete preparation checklist with your written quote.
Schedule Your Impact Windows & Doors Service in Three Lakes Today
Call (786) 808-5792 to schedule your free measured survey. A live person answers our phones 24/7. You’ll receive a written, line-item quote before any work begins, backed by the Haven Standard and the 365-Day Done Right Promise. We also offer free second opinions on any competitor’s written estimate. Sonia Raman and the team at Sightline Windows & Doors Three Lakes look forward to documenting your project from first measurement to final photo record.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Three Lakes since 2012.