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 Westchester
Impact windows and doors in Westchester typically cost $850-$2,400 per opening depending on frame material, glazing package, and whether the existing masonry rough opening needs on-site trimming. Most Westchester homes built between 1950 and 1975 require custom-order or field-modified frames because original jalousie and single-pane aluminum openings deviate from modern nominal sizes. Our Impact Windows & Doors team measures every opening to the sixteenth, produces a written quote you keep, and does not start work until you have that price in hand.
We serve Westchester from our Miami South Florida office, with crews dispatched daily to the neighborhood’s dense grid of single-story CBS blocks off SW 24th Street, Coral Way, and Bird Road. Tight lots, shared party walls, and narrow driveways are standard conditions here, not exceptions. We plan staging, parking, and material handling into every quote because an impact window install that blocks a neighbor’s access or leaves an unsealed opening overnight is a job we would not sign our name to. Call (786) 321-3319 to schedule your free measured survey.
Why Sightline Windows & Doors Kendall Is Westchester’s Preferred Impact Windows & Doors Company
Sonia Raman has led Sightline since its founding under the Haven Standard in 2012, and our crews have measured, quoted, and installed impact-rated openings across thousands of Westchester homes. The 18,000+ windows and doors in our record include hundreds in this neighborhood alone, from original jalousie conversions on SW 22nd Avenue to full-opening replacements in the duplex tracts near Tropical Park.
Our reviews from Westchester customers consistently cite the same details: the measured survey they kept, the written price that matched the final invoice, and the photo record documenting every anchor point and seal. We do not ask for trust. We hand you the documentation.
Response time to Westchester is same-day or next-day for measured surveys, with live phone coverage 24/7. Dispatch coordinates from our Miami office, but the crew that arrives at your door is the crew on the schedule, background-checked, uniformed, and identified by license number before they step out of the truck. Haven Clause 3, Verified Crews, means no substitutes, no day-labor surprises.
Local knowledge matters here because Westchester’s housing stock is uniform but unforgiving. The 1950s-60s CBS blocks with poured-in-place headers, the salt-laden air drifting inland from Biscayne Bay, the Miami-Dade HVHZ wind-load requirements that exceed every other mainland U.S. jurisdiction, these conditions define how an impact window must be specified, shimmed, and sealed. A generic installer measuring for nominal sizes will force-fit a frame against out-of-plumb masonry and void your NOA certification. We have seen it. We do not do it.
Our Impact Windows & Doors Services in Westchester

Impact-Resistant Windows
Every impact-resistant window we install in Westchester carries a current Miami-Dade Notice of Acceptance and is specified to the opening, not pulled from a warehouse rack. The persistent tropical humidity and salt air here corrode non-marine-grade hardware within a few seasons, so we stock PGT and CGI frames with HVHZ-rated anodized finishes and stainless fasteners as standard, not upgrades. On a tight single-story CBS block off SW 24th Street near the Westchester border, our crew replaced original jalousie louvers with PGT horizontal roller impact windows and found the masonry rough opening out of plumb by nearly half an inch, so we shimmed and sealed each unit to its Miami-Dade NOA spec rather than force-fitting the frame flat against the block. We staged the truck curbside and hand-carried every panel through the side gate because the driveway was too narrow for our trailer, and we posted party-wall notice with the adjacent duplex owner before the first anchor went in. The homeowner’s wind mitigation report came back with full-opening impact protection, and their carrier applied the Florida Statute 627.0629 credit on the next renewal.

Hurricane Impact Windows
Hurricane impact windows in Westchester must pass the large-missile and cyclic-pressure testing that Miami-Dade’s HVHZ designation demands. The 1950s-1970s CBS construction here means most rough openings are masonry, not wood stud, so anchoring patterns differ from Broward or Palm Beach County norms. We drill, tap, and epoxy anchors into the block to the torque spec listed on the product’s NOA, then document each penetration with a photo the customer receives. Annual wind-driven rainy-season storms exploit hairline seal failures on non-impact units, a failure mode homeowners in this neighborhood recognize by name. Our hurricane impact installations are sealed with Dow Corning 795 or equivalent marine-grade silicone, not generic caulk, because the gap between frame and stucco is where water enters after the third or fourth season of thermal cycling.

Single Hung Impact Windows
Single hung impact windows remain the most common replacement choice in Westchester’s smaller bedrooms and bathrooms, where the fixed upper sash and operable lower sash match the footprint of original aluminum units without altering the rough opening. The challenge here is the header tolerance. In Westchester’s 1950s-60s CBS blocks, window headers were often poured in place with relaxed tolerances, so openings routinely run out of plumb by half an inch or more, enough to bind an impact door or gap an impact window frame against the masonry, voiding both the Miami-Dade NOA and the homeowner’s wind mitigation discount if not shimmed and sealed to spec on-site. Our measured survey catches this before the order is placed, and we specify frames with adjustable jamb liners or order custom widths when the deviation exceeds three-eighths of an inch.

Double Hung Impact Windows
Double hung impact windows suit Westchester’s living rooms and primary bedrooms where egress and cleaning access matter. Both sashes tilt in for maintenance, a feature that matters when salt film accumulates quarterly. We specify double hung units from PGT or ViewLux with reinforced meeting rails and interlocking sash designs that maintain the HVHZ pressure rating when both sashes are closed. On Coral Way corridor homes with original wood-frame double hungs, we often find rot in the sill and jack studs that the stucco veneer conceals; our survey includes a moisture-probe reading at each opening, and we quote sill pan replacement or rough-opening rebuild separately, in writing, before work starts. No change orders. Haven Clause 1.

Horizontal Roller & Sliding Impact Windows
Horizontal roller impact windows dominate our Westchester installations for a reason. The 2-panel or 3-panel design maximizes glass area on limited wall space, and the roller mechanism tolerates minor frame deflection better than hung or casement styles. This matters on Westchester’s tight lots where the original jalousie banks spanned entire walls and homeowners want equivalent ventilation without the louvers that failed Andrew. We specify PGT WinGuard horizontal rollers with laminated glass and warm-edge spacers for most Westchester CBS openings, with CGI Estate Collection upgrades for homes on wider lots where sightline and finish detail matter. Every unit is measured, not assumed.

Wind Mitigation & HVHZ Code Compliance
Wind mitigation is not a separate service. It is the documentation that results from correct installation. Every impact window and door we install in Westchester is permitted through Miami-Dade County, inspected by the county, and documented with the NOA, product label, and installation photographs required for your carrier’s wind mitigation form. We fill out Section A of the Uniform Mitigation Verification form, the inspector fills out Section B, and you submit both to your agent. The Florida Statute 627.0629 credit for opening protection is not automatic. It requires the right product, installed to the right spec, with the right paperwork. We produce all three.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Westchester
We specify from eight manufacturer lines, PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux, matched to the opening’s performance requirement and your price range, not our margin. For Westchester’s HVHZ environment, we most often quote PGT WinGuard aluminum or vinyl impact frames for horizontal roller and single hung replacements, CGI Estate Collection for premium finishes on larger openings, and Therma-Tru impact-rated entry systems for door conversions. We stock common hardware and keep relationships with each manufacturer’s South Florida distribution so replacement sashes, balances, or rollers arrive in days, not weeks, when a Westchester customer needs service under the 365-Day Done Right Promise.
Common Impact Windows & Doors Problems We See in Westchester Homes

- Force-fitted frames against out-of-plumb poured headers. A previous installer measured the daylight opening, ordered a nominal-size frame, and shimmed only the reveal side, leaving a hairline gap at the header that voids the Miami-Dade NOA and the wind mitigation discount the carrier relies on. We measure plumb, level, and square at six points, then specify shimming or custom order accordingly.
- Corroding non-marine-grade aluminum and failed sealants. Salt-laden air from Biscayne Bay drifts inland and attacks anything less than HVHZ-rated anodized finishes and marine-grade hardware. Generic anodizing chalks and pits within three years here. We specify PGT and CGI frames with AAMA 2605 finishes and document the product label for your record.
- Staging and parking failures on narrow Westchester lots. Blocking a neighbor’s driveway or the shared party wall access delays the punch list and can put an unsealed opening through a rainy-season storm. Our quote includes a site-access plan: truck placement, material staging, debris container location, and work hours that respect county noise ordinances.
- Original jalousie louvers converted with impact inserts rather than full-frame replacement. Inserts do not meet HVHZ standards for large-missile impact, and most carriers will not credit them for wind mitigation. We quote full-frame removal and replacement, with the NOA documentation your underwriter requires.
Pricing for Impact Windows & Doors in Westchester, FL
These are the price ranges we quote in writing for typical Westchester openings, measured and documented before any work starts:
| Service | Typical Range per Opening |
|---|---|
| Single hung impact window, vinyl frame, standard size | $850 - $1,400 |
| Double hung impact window, vinyl frame, standard size | $1,100 - $1,800 |
| Horizontal roller impact window, aluminum frame, 2-panel | $1,200 - $2,000 |
| Horizontal roller impact window, aluminum frame, 3-panel | $1,800 - $2,800 |
| Impact entry door, Therma-Tru fiberglass system | $2,200 - $3,800 |
| Custom-order or on-site-trimmed frame (out-of-plumb header) | Add $150 - $400 per opening |
| Rough-opening rebuild, sill pan, or moisture damage repair | $400 - $1,200 per opening |
| Permit, inspection, and wind mitigation documentation | Included in quoted price |
What moves a quote within these ranges: frame material (vinyl vs. aluminum vs. fiberglass), glazing package (clear vs. Low-E vs. impact-plus-insulated), opening condition (plumb header vs. out-of-plumb requiring shimming or custom order), and site access (direct driveway vs. hand-carry through a narrow side gate). Every quote is line-itemed, written, and fixed. The price before work starts is the price on the final invoice. Call (786) 321-3319 for your free measured survey and written estimate.
We Also Serve Cities Near Westchester

Our crews work daily across Westchester and the surrounding communities: Kendall to the south, The Crossings to the west, Pinecrest to the southeast, and Palmetto Estates to the north. Each neighborhood has distinct housing stock, code history, and carrier requirements. We adjust our survey and specification accordingly. If you are unsure whether your home falls within our Westchester service area, call (786) 321-3319 and we will confirm by address.
Serving Westchester, FL - Our Local Coverage Area
We’re based in the Westchester 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 Westchester

Westchester’s single-story CBS homes were built between 1950 and 1975 with poured-in-place concrete headers that frequently deviate from modern nominal sizes by half an inch or more. A stock frame forced into that opening gaps against the masonry, voiding the Miami-Dade NOA and your wind mitigation discount. We measure every opening to the sixteenth and specify custom-order frames or on-site trimming when the deviation exceeds manufacturer tolerance. Call (786) 321-3319 for a measured survey and exact quote, estimates are free.
Yes. Westchester sits fully within Miami-Dade’s High-Velocity Hurricane Zone, and the county building code requires a current NOA for every impact-rated product installed. Your insurance carrier also requires the NOA product label and installation documentation to apply the Florida Statute 627.0629 premium credit. We permit, inspect, and document every opening to this standard. Call (786) 321-3319 to verify your current windows meet the requirement.
Tight lot access changes material handling and staging time, which we build into the written quote. If our trailer cannot reach your driveway, we hand-carry panels through side gates or coordinate crane delivery for large sliding door systems. We also plan debris removal and neighbor notification to avoid delays. The measured survey includes a site-access assessment, so the quote reflects actual conditions, not assumptions. Call (786) 321-3319 to schedule.
Impact windows with Low-E coating and insulated glass reduce solar heat gain and air infiltration compared to original single-pane aluminum or jalousie units common in Westchester. The savings vary by home orientation, shading, and existing HVAC efficiency, but most homeowners see measurable reduction in cooling load during peak summer months. The larger financial return is typically the wind mitigation insurance credit, which we document for your carrier. Call (786) 321-3319 to discuss glazing options and estimated payback.
The frame gaps or binds, the NOA installation requirements are not met, the county inspector fails the job, and your insurance carrier denies the wind mitigation credit for that opening. In severe cases, the frame deflects under design pressure and the laminated glass delaminates at the edge. We prevent this by measuring plumb, level, and square at six points during the survey, then specifying shimming, custom order, or rough-opening rebuild as needed. Call (786) 321-3319 for an inspection of your existing installation.
Ready for your free measured survey? Call (786) 321-3319. Sonia Raman and our team will produce a written, line-itemed quote you keep, with no change orders and no surprises. Every installation is backed by the 365-Day Done Right Promise under the Haven Standard, with a documented photo record you receive at completion. The price before work starts is the price on the final invoice. Haven Clause 1. Always.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Westchester since 2012 under the Haven Standard.










Before
After
Before
After
Before
After