CWS Door Installation Nationwide | Sightline Windows & Doors Three Lakes

CWS Door Installation: The Three Lakes Owner’s Guide

CWS door installation in Three Lakes typically runs $1,800-$4,200 for a standard single entry unit, depending on impact rating, frame condition, and whether the opening needs structural remediation. We stock CWS-compatible frames, sills, and hardware on our trucks, and most replacements are surveyed and installed within two business days. Most Three Lakes homeowners discover a CWS door is failing when the sweep drags, the multi-point lock won’t seat, or they notice light bleeding through a frame that has settled out of square in our clay-heavy soils.

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Which CWS Models This Applies To

CWS produces several door series that circulate in South Florida, and matching the right installation package matters because the frame extrusions differ. The CWS 3750 and CWS 4750 impact entry door lines use a 4-9/16 inch jamb depth with a composite-reinforced corner post; the CWS 8000 Series sliding patio door uses a shallower 3-1/4 inch jamb with a distinct sill profile that slopes toward the exterior weep system. We also see the CWS Elite and CWS Estate decorative entry lines in Three Lakes homes built between 2016 and 2022.

To identify your unit, check the hinge-side jamb for a stamped series number or the glass corner for a CWS logo etch with a four-digit date code. The critical compatibility gotcha: CWS switched from a 1-3/4 inch thick slab to a 2-1/4 inch slab on impact-rated units manufactured after March 2019. If your existing frame was built for the thinner slab, the new door won’t seat without a complete frame replacement, not just a slab swap. We carry both jamb depths on our trucks, but we won’t know which you need until we measure the rough opening and the existing hinge mortise location.

Sightline Windows & Doors Three Lakes is an independent service provider, not affiliated with CWS. We source OEM CWS frames and sills where the series is still in production; for discontinued lines, we fabricate compatible frames from Knight or Eastern Architectural Systems extrusions that match the original sightline and hardware prep. Sonia Raman specifies the replacement by what the opening requires, not by what is in stock.

Signs Your CWS Door Installation Is Failing

• The sweep drags or the door sticks in summer. In Three Lakes, our clay soils expand with afternoon thunderstorms and contract in dry spells. That seasonal movement torques the sill, and a CWS door that swung free in January starts catching by July. The frame is out of square, not the door.
• Light shows at the top corner of the jamb. This means the header has dropped or the hinge-side jamb has pulled away from the king stud. On CWS impact units, the multi-point lock can’t compensate for a racked frame; the bolts miss their keepers and the weatherstrip compresses unevenly.
• Water pools on the interior sill after heavy rain. CWS patio doors use a sloped sill with integrated weep channels. When those weeps clog with pine needle debris from Three Lakes’ mature tree canopy, water backs up and finds the path of least resistance, usually the corner seal.
• The multi-point lock handle spins without resistance. The CWS gear box uses a zinc alloy housing that fatigues after roughly 8,000-12,000 cycles. In a household with kids and a pool, that’s five to seven years of use. The gearbox cracks internally; the handle turns, but the bolts don’t extend.
• Condensation between the glass lites. CWS doors use a dual-seal insulating glass unit with a stainless steel spacer. When the primary seal fails, argon escapes and secondary seal eventually breaches. In South Florida’s UV load, we see this most often on west-facing units that take the Killian Corridor afternoon sun.

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Replacement Cost & What’s Included

For a standard CWS single entry door installation in Three Lakes, expect $1,800-$2,800 for a non-impact unit with a sound existing frame, and $2,800-$4,200 for an impact-rated replacement requiring full frame, sill, and hardware replacement. The spread depends on three factors: whether the rough opening needs structural remediation (common in 1980s Three Lakes construction with undersized headers), whether the finish requires a custom paint match, and whether the existing impact glass can be reused in the new frame.

Every installation includes the measured survey you keep, the written scope that becomes the final invoice, and the documented photo record showing before, during, and after. We pull permits when required by Miami-Dade or the Three Lakes HOA, and every job carries the 365-Day Done Right Promise under the Haven Standard. No change orders, no surprises.

DIY or Call Us?

An owner can safely check three things: whether the weep holes are clear, whether the hinge screws are tight to the jamb (not just the door), and whether the strike plate has shifted. Beyond that, CWS door installation involves risks that justify a professional. Impact-rated units weigh 140-180 pounds; a slab dropped on tile or foot causes damage that exceeds our installation fee. The multi-point lock requires precise mortising and bolt-to-keeper alignment within 1/16 inch; miss that, and the lock fails under wind-load pressure.

More critically, a frame installed out of plumb compromises the impact rating itself. Miami-Dade Notice of Acceptance for CWS units assumes installation per the manufacturer’s published tolerances. A DIY frame that looks square to the eye but reads 3/8 inch out over 80 inches fails that standard, and your insurer or HOA can deny a claim on that basis. We background-check and license-number our crews for a reason. Call (786) 808-5792 to schedule your free estimate.

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