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
AfterFast, Reliable Sliding & Patio Doors Across Westchester
Sliding and patio door replacement in Westchester, FL typically runs $2,800-$6,500 for impact-rated units, with most jobs completed in one to two days after the measured survey. Because Westchester’s 1950s-1970s concrete block homes were built before Miami-Dade’s HVHZ codes existed, every new patio door must carry a Miami-Dade Notice of Acceptance and be shimmed to plumb against often-crooked original headers.
We’re the Sliding & Patio Doors crew from Sightline Windows & Doors Kendall, and we work these Westchester lots regularly. Our crews know the tight parking along SW 24th Street, the shared-wall setups near Coral Park, and the permit scrutiny that comes with any opening replacement in Miami-Dade’s High-Velocity Hurricane Zone. Dispatch and scheduling run from our Miami office, but the trucks that roll to Westchester carry NOA-certified frames measured to your specific block opening, not a standard catalog size. Call (786) 321-3319 to schedule your free measured survey. The written price you receive is the price on the invoice. Haven Clause 1.
Why Sightline Windows & Doors Kendall Is Westchester’s Preferred Sliding & Patio Doors Company
We’ve measured, ordered, and installed impact patio doors across Westchester’s CBS grid since 2012, and the pattern is consistent: openings that don’t match nominal sizes, headers poured out of plumb, and homeowners who need the job documented for their insurance carrier. Our 18,000+ installations include hundreds in this neighborhood, and every one began with a written price and ended with a photo record the customer keeps.
Westchester customers find us through three-star reviews that mention specifics - the tech who caught a half-inch header tilt, the crew that staged on a narrow driveway without blocking the neighbor, the written NOA paperwork that satisfied Citizens Insurance. Those details matter more to us than star counts.
Response time to Westchester runs same-week for measured surveys, with install scheduling typically 10-14 days out once the custom frame is fabricated. Impact-rated patio doors aren’t stocked items; they’re built to your opening’s exact block dimensions after we survey.
Our crews are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3. The person at your Westchester door is the person on the record. No subcontractors, no surprises.
Our Sliding & Patio Doors Services in Westchester
Patio Doors
Standard patio door replacement in Westchester means dealing with original 1960s aluminum sliders set into concrete block that wasn’t built for modern impact hardware. We measure the rough opening to the sixteenth, account for the block wall thickness, and specify a frame that anchors into masonry, not wood studs. Most Westchester patio door openings run 72″ x 80″ nominal but finish out of square by 3/8″ to 1/2″, so every order gets a field-verified dimension sheet, not a guess from the original blueprints.
Impact Sliding Glass Doors
Impact sliding glass doors are the dominant replacement in Westchester, and for specific reasons. Citizens Insurance and private carriers offer meaningful premium reductions for full-opening HVHZ protection, and the original jalousie or single-pane aluminum units in these CBS homes flatly fail the wind-mitigation inspection. We specify impact-rated sliding glass doors from PGT, CGI, and ViewLux - each with a Miami-Dade NOA that matches your opening’s design pressure rating. The frame gets shimmed to true against your poured header, sealed to the block, and documented with photos for your insurance file. This is standard on every job, not an upsell.
Sliding Glass Door Replacement
Sliding glass door replacement in Westchester follows a strict sequence because of the housing stock. First, we cut back the stucco to expose the block rough opening. Then we check the header for plumb - and we find it off more often than not. The new impact frame gets shimmed and grouted to a true plane, sealed with marine-grade sealant rated for salt-laden air, and finished with matching stucco patch. The old track? Pitted from decades of Biscayne Bay salt and humidity, usually binding or leaking. The new unit runs on stainless rollers with a weep system designed for HVHZ water infiltration loads. We replaced a failed 1962 aluminum slider at a CBS ranch off SW 24th Street near Coral Park with an impact-rated PGT sliding glass door after the owner’s carrier flagged the opening during a wind-mitigation reinspection. The original header was poured out of level, so our tech shimmed and grouted the new frame to true before sealing it to the block, then recertified the opening with the NOA documentation the insurer required. The job passed inspection and the owner’s premium credit was restored.
Impact French Patio Doors
Impact French patio doors suit Westchester homeowners who want the swing-door aesthetic on a covered lanai or rear patio. The hinge side demands extra attention in CBS construction - the jamb must anchor into block with expansion hardware, not screws into wood buck, and the sill pan has to handle HVHZ water intrusion without relying on caulk alone. We specify Therma-Tru and CGI French door systems with composite or clad frames that resist the salt corrosion that destroys standard aluminum in this neighborhood. Every French door install gets a documented water-test photo before we leave.
Screen Door Installation
Screen doors on Westchester patio openings are typically replaced alongside the primary door, since the screen track integrates with the impact frame. We match the screen mesh to your use - standard fiberglass, pet-resistant, or no-see-um for the properties near the canal edges where insects concentrate.
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.
Before
AfterTrusted Brands We Service in Westchester
We draw from eight verified manufacturer lines for Westchester jobs: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. For this neighborhood’s impact sliding and patio door work, we most often specify PGT and CGI for their deep NOA libraries covering the non-standard opening sizes we encounter in 1950s-70s CBS construction. Therma-Tru French door systems and ViewLux large-format sliders round out the options when the opening or the aesthetic demands it. Parts and warranty support are stocked locally in Miami-Dade, so a failed roller, lock, or seal doesn’t turn into a multi-week wait. The brand gets specified by what your opening requires and what your carrier recognizes, not by what’s in our warehouse.
Common Sliding & Patio Doors Problems We See in Westchester Homes
- Original jalousie and single-pane aluminum patio sliders fail HVHZ standards. Their pitted tracks bind or leak during wind-driven rainy-season storms. The county inspector will flag them, and your carrier will eventually demand replacement to maintain wind-mitigation credits.
- Salt-laden air drifting inland from Biscayne Bay corrodes non-marine-grade aluminum frames. It destroys sealants on patio doors here far faster than inland Florida, letting hairline glazing-seal failures become water intrusion that rots interior trim and breeds mold in the block cavity.
- Poured-in-place 1950s-60s headers leave patio-door rough openings out of plumb by half an inch or more. An impact door installed without on-site shimming and sealing gaps the frame, voiding both the NOA and the insurance discount. This is the single most common issue we correct on Westchester patio-door replacements.
- Tight lot staging blocks access and extends labor hours. Westchester’s narrow driveways and shared walls mean we coordinate material delivery, dumpster placement, and crew parking before the job starts - not after we arrive and find the neighbor’s car in the way.
Pricing for Sliding & Patio Doors in Westchester, FL
A typical impact sliding glass door replacement in Westchester runs $2,800-$4,200 for a standard 72″ x 80″ opening with a PGT or CGI frame, including demolition, block-wall shim and grout, stucco patch, and NOA documentation. Impact French patio doors start around $3,800 and climb to $6,500 for wider openings or Therma-Tru clad-wood systems with multi-point hardware. Screen door installation as part of a full replacement adds $400-$700.
What moves the price: opening size and deviation from square, header condition (cut-back and rebuild adds labor), stucco finish match, and the specific design pressure rating your exposure zone requires. Homes closer to the canal or with larger glass spans need higher DP ratings, which means thicker glass and beefier frames.
We don’t estimate from photos. Every Westchester job starts with a measured survey you keep, and the written quote from that survey is the final invoice. Haven Clause 1. No change orders for conditions we should have caught - and on these old CBS openings, we catch them. Call (786) 321-3319 for your free measured survey and written price.
We Also Serve Cities Near Westchester
Our crews work the full Miami-Dade corridor from the Kendall dispatch point, including Westchester and the surrounding areas: Kendall to the south, The Crossings to the southwest, Pinecrest to the southeast, and Palmetto Estates to the west. The same measured-survey protocol, the same NOA documentation, and the same written-price guarantee apply in every zip we serve.
Serving Westchester, FL - Our Local Coverage Area
We’re based in the Westchester area and know this community well - Westchester Impact Windows & Doors is what we do. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Sliding & Patio Doors in Westchester
Yes. Miami-Dade requires party-wall notice for any work within 10 feet of a property line, and most Westchester lots are tight enough that patio-door demolition and staging will cross that threshold. We provide the notice template and help coordinate timing so your neighbor isn’t surprised by a dumpster or a compressor at 7 a.m. Call (786) 321-3319 and we’ll walk you through the notice requirement during the measured survey.
Tight staging adds labor hours for material handling and protective setup, which we build into the written quote after seeing your specific access. On a standard Westchester 6,000-square-foot lot with a single driveway, we typically stage the new frame on the driveway and protect the path with masonite, adding roughly $200-$400 to the labor line versus a property with rear alley access. The measured survey captures this; the quote reflects it. No surprises on install day.
Yes. Citizens Insurance and every major private carrier writing in Miami-Dade require a Miami-Dade Notice of Acceptance for the specific product installed in your specific opening to maintain wind-mitigation premium credits. A non-NOA door, or an NOA door installed out of plumb so the frame gaps, voids that credit and exposes you to reinspection failure. We specify only NOA-certified products and document the installation with photos and the NOA certificate for your insurance file. Call (786) 321-3319 for an exact quote - estimates are free.
The original 1950s-60s CBS wall was finished with stucco right to the frame edge, and the old aluminum slider was likely set into a bed of mortar that crumbles on removal. To properly shim and seal a new impact frame to the block, we need clean block exposure - typically 2-3 inches back from the rough opening face. We cut the stucco cleanly, remove the old mortar bed, install the new frame against true block, then patch with matching stucco texture. The alternative - trying to seal against crumbling mortar - voids the NOA and leaks within two rainy seasons.
A modern impact sliding door with low-E, argon-filled glazing and a tight frame seal will reduce solar heat gain and air infiltration compared to a 1960s single-pane aluminum slider. In Westchester’s climate, that typically translates to 10-20% cooling-load reduction on the room served, though your total home savings depend on how many other original openings remain. The bigger financial driver here is usually the insurance premium credit for HVHZ-compliant impact protection, which often exceeds the energy savings in year one. Call (786) 321-3319 for an exact quote - estimates are free.
Written by Sonia Raman, Owner at Sightline Windows & Doors Kendall, serving Westchester since 2012 under the Haven Standard.