Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Trusted Custom & Geometric Windows for Boca Raton Homeowners
Custom and geometric window installation in Boca Raton typically costs $2,800-$8,500 per opening depending on shape complexity, impact rating, and glazing specification, with most measured surveys scheduled within 48 hours. Sightline Windows & Doors Boca Raton has installed 18,000+ windows and doors since 2012, every one with a written price before work started and a documented photo record when finished. Call (561) 200-8592 to schedule your free measured survey.
The homes going up in Boca Raton between 2015 and 2025, especially in neighborhoods like Royal Palm Yacht & Country Club, The Oaks, and Boca West, were built with standard rectangular openings. When homeowners want arched transoms over entryways, triangular gable windows, or circular porthole-style accents, the frame has to be measured to the sixteenth of an inch and the glazing specified for Florida’s wind-borne debris requirements. We’ve replaced builder-grade rectangles with custom geometric units in Spanish River Land, added impact-rated circular windows to coastal properties in Boca Harbour, and engineered oversized curtain-wall openings for modern builds in Mizner Park. Every job starts with the measured survey you keep, and the written quote cannot differ from that document - Haven Clause 1. Our technicians are background-checked, uniformed, and identified by license number before arrival, per Haven Clause 3.
What Our Custom & Geometric Windows Service Includes
Custom Impact Windows
Custom impact windows are manufactured to non-standard dimensions and shapes while maintaining Miami-Dade and Broward County HVHZ certification for wind-borne debris resistance. You need these when your opening doesn’t match stock sizes or when you’re replacing a geometric unit that failed its inspection after a storm. At Sightline Windows & Doors Boca Raton, we specify custom impact glass from PGT and CGI with laminated interlayers tested to ASTM E1886 and E1996, then measure the rough opening ourselves - we don’t subcontract the survey - so the frame depth, anchor pattern, and sill pan integration are documented before the order is placed.

Geometric & Shaped Windows
Geometric and shaped windows include triangles, trapezoids, pentagons, and polygons that break the rectangular plane of a wall without curving. These appear in gable ends, stairwell landings, and accent walls throughout Boca Raton’s Mediterranean and contemporary architecture. We see them frequently in older homes near Camino Real and in new construction around Alton Road where architects specify raked glass to follow roof pitches. Our measured survey captures every angle with digital protractors and laser levels; the template goes to the manufacturer with a sightline drawing that shows exactly where the operable sash meets the fixed frame, because a half-degree error in a triangular unit means a visible gap at the miter.

Arched & Curved Windows
Arched and curved windows use radius-top or full-radius frames that require either bent aluminum extrusions or segmented miter construction depending on the radius and the manufacturer’s capability. You’ll find these in Spanish Colonial revivals throughout Old Floresta, in French Provincial homes near Hidden Lake, and in custom builds along the Intracoastal where the architect specified a barrel-vault transom. We work with ES Windows and ECO Window Systems for true radius extrusions when the span allows, and with Mr-Glass for segmented radius assemblies when the curve is too tight for bending. The critical measurement is the chord length and rise - we document both on your survey sheet, then verify against the shop drawing before fabrication begins.

Oversized Openings
Oversized openings exceed standard stock dimensions, typically wider than 60 inches or taller than 96 inches, and require reinforced frames, heavier glazing, and often multi-point locking hardware. These are common in modern homes in Boca Raton’s newer developments where the design intent is floor-to-ceiling glass, and in renovations where two standard openings are being combined into one. The structural header often needs engineering review - we flag this during the measured survey and include the LVL or steel specification in our written scope if the opening modification requires it. We’ve engineered oversized openings up to 144 inches wide in homes near Lake Boca Raton, specifying Therma-Tru structural frames with reinforced mullions and impact-rated insulated glass units rated for the 170 mph wind speed zone.

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 Custom & Geometric Windows

We specify custom and geometric windows from eight manufacturer lines, selected by what the opening requires rather than what is in stock. For impact-rated custom shapes in Boca Raton’s coastal zones, we regularly specify ES Windows - their ES-Master series includes radius-tops and polygons with HVHZ certification, and we’ve installed over 400 of their units in Palm Beach and Broward counties since 2018. Their segmented arch assemblies use thermal-break aluminum with a 3-1/4 inch frame depth that matches most stucco returns in Boca Raton’s 1990s-2010s construction. For energy-efficient custom geometric units in inland locations like Parkland and Coral Springs, we specify ECO Window Systems - their uPVC custom line achieves U-factors below 0.30 with dual-pane low-E glazing, and we’ve found their welded-corner construction holds square better than mechanical corners on trapezoid units over 48 inches wide.
Mr-Glass supplies our laminated and tempered custom glazing for non-impact geometric accent windows where the design calls for maximum transparency - their low-iron glass reduces the green tint visible in thick laminated units, which matters in circular or triangular windows where the edge is exposed. For oversized impact-rated openings, we specify Therma-Tru structural frames with integrated reinforcement channels; their custom division has tooled radius-tops up to 72 inches wide for our projects in Delray Beach and Deerfield Beach. Whether you have ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, or any other make, we can measure, specify, and install it - and we offer a free second opinion on any written estimate you’ve already received.
Before
AfterSigns You Need Custom & Geometric Windows Right Now
- Visible daylight around a fixed geometric unit. Gaps between the frame and the sash or between the frame and the wall indicate seal failure or structural movement. In Boca Raton’s coastal environment, salt air accelerates aluminum oxidation at these gaps, and the next tropical storm will drive water through.
- Condensation between panes on an insulated geometric window. Fogging inside a dual-pane unit means the edge seal has failed; the inert gas has escaped and moisture has entered. For shaped windows, replacement is usually required - the IGUs are factory-sealed and field repair isn’t viable.
- Cracked or delaminated impact glass after a storm event. Even if the window didn’t breach, micro-cracks in the laminated interlayer compromise the wind-borne debris protection. We document this with photo evidence during our survey and include it in your written scope.
- Difficulty operating an arched or radius-top venting unit. Geometric operable windows rely on precise hinge and lock alignment; if the frame has settled or the sash has warped, the hardware binds. Forced operation risks glass breakage or personal injury from shattered impact-rated laminated glass.
- Renovation or addition requiring a non-standard opening. If you’re removing a standard rectangle to install a door-wall, combining two windows into one oversized unit, or adding a gable-end triangle to match existing architecture, the new unit must be measured to the existing conditions - not to a plan dimension that may have shifted during construction.
Our Custom & Geometric Windows Process - Step by Step

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Measured survey with documented template. We arrive with laser measures, digital protractors, and level lines. For geometric and arched units, we create a full-size template on rigid board that you keep. The survey records rough opening dimensions, frame depth, wall thickness, sill condition, and any structural modifications needed. This document becomes the basis for the written quote - Haven Clause 1.
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Written scope and price before any work starts. Within 24 hours of the survey, you receive a written scope with line-item pricing: the unit cost, the installation labor, any structural modification, permit fees, and disposal. The price on this document is the price on the final invoice - no change orders, no surprises. Haven Clause 5.
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Manufacturer specification and shop drawing review. We specify the manufacturer and series based on your opening’s requirements: impact rating, energy performance, frame material, and finish. For custom shapes, we review the manufacturer’s shop drawing against our template before releasing to fabrication. Discrepancies are resolved in writing, not in the field.
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Installation by verified crew with photo documentation. Our technicians arrive uniformed with license numbers visible, per Haven Clause 3. Installation follows the manufacturer’s anchor pattern and our sill pan integration detail, documented with timestamped photos at rough opening, flashing, and finish stages. You receive the photo record with your final invoice - Haven Clause 4.
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Final inspection and 365-Day Done Right Promise activation. We operate the unit, verify lock engagement, check seal continuity, and review the documentation with you. The 365-Day Done Right Promise is stamped on your paperwork: if it’s not done right, we make it right. This is written into the Haven Standard, not offered as a courtesy.
How Much Does Custom & Geometric Windows Cost in Boca Raton?
A typical custom geometric window installation in Boca Raton runs $2,800-$8,500 per opening depending on shape complexity, impact rating, and glazing specification. Here’s how that breaks down for common scenarios we see in Boca Raton homes:
- Standard rectangular custom size (non-impact): $2,800-$4,200 - includes measured survey, vinyl or aluminum frame, dual-pane low-E glass, installation, and disposal.
- Geometric shaped unit - triangle or trapezoid (non-impact): $3,500-$5,800 - fabrication surcharge for custom template, mitered frame construction, and specialized glazing cut.
- Arched or radius-top unit (impact-rated): $4,800-$7,200 - includes laminated impact glass, HVHZ certification, reinforced frame, and Miami-Dade product approval documentation.
- Oversized opening over 72 inches wide (impact-rated): $6,200-$8,500 - structural reinforcement, multi-point hardware, heavy-lift installation, and potential engineering review for header modification.
Several factors move the price within these ranges. Impact rating adds 35-50% over non-impact; true radius extrusions cost more than segmented assemblies; and low-E coatings with specific SHGC values for east- and west-facing openings add to glazing cost. The finish - interior woodgrain laminate, exterior custom paint match, or anodized aluminum - also affects the line item. What doesn’t change is that the price we write is the price you pay. No change orders, no “while we’re here” additions. If we encounter concealed damage during installation, we document it with photos, explain the scope change in writing, and require your signature before proceeding - Haven Clause 1 doesn’t mean we hide problems; it means we surface them with evidence.
To avoid overpaying, bring us any written estimate you’ve already received. Our free second opinion reviews the specification against the opening requirements - we’ve found competitors quoting standard rectangles for geometric openings, or non-impact units where HVHZ is required. The free estimate includes the measured survey you keep, the written scope with line-item pricing, and no obligation to proceed. Call (561) 200-8592 to schedule.
Custom & Geometric Windows Near Boca Raton - Our Service Area

We install and replace custom and geometric windows throughout southern Palm Beach and northern Broward counties, with measured surveys typically scheduled within 48 hours in Boca Raton, Deerfield Beach, Delray Beach, Lighthouse Point, Coconut Creek, Pompano Beach, Parkland, Margate, Boynton Beach, Coral Springs, North Lauderdale, and Oakland Park. Response times extend to 72 hours for initial surveys in outlying areas during peak season, though live phone coverage is available 24/7 for scheduling. We’ve worked with the architectural review committees in Boca Raton’s country clubs and HOA boards in Delray Beach’s Tropic Isle, so we understand the documentation requirements for custom exterior modifications in governed communities.
Serving Boca Raton, FL - Our Local Coverage Area
We’re based in the Boca Raton 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 - Custom & Geometric Windows in Boca Raton

Custom and geometric windows are manufactured to non-standard dimensions and shapes - including arches, circles, triangles, trapezoids, and oversized rectangles - rather than pulled from stock inventory. In Boca Raton’s architectural context, these range from radius-top transoms in Mediterranean revivals to full curtain-wall assemblies in contemporary Intracoastal builds. Call (561) 200-8592 to schedule a measured survey and see what shapes are feasible for your opening.
Fabrication lead time for custom and geometric windows is typically 6-10 weeks from approved shop drawings, with installation completed in one to three days depending on the number of openings and any structural modifications. We coordinate delivery to minimize your exposure, and the installation date is fixed in writing when you approve the scope - Haven Clause 2. Call (561) 200-8592 to check current lead times for your specific unit.
Custom geometric window installation in Boca Raton typically ranges from $2,800 for a standard-sized custom rectangle to $8,500 for an oversized impact-rated arched unit, with most geometric shapes falling between $3,500 and $5,800. The price depends on shape complexity, impact rating, glazing specification, and finish. Your written estimate from Sightline Windows & Doors Boca Raton includes every line item with no hidden costs - call (561) 200-8592 for your free measured survey and exact quote.
Yes - we specify and install custom geometric units from both ES Windows and ECO Window Systems, among other manufacturer lines. ES Windows produces HVHZ-certified radius-tops and polygons for Boca Raton’s coastal zones; ECO Window Systems manufactures energy-efficient custom uPVC geometric units for inland applications. We review their shop drawings against our field templates before releasing to fabrication. Call (561) 200-8592 to discuss which manufacturer’s custom line fits your opening’s requirements.
We do not offer same-day installation for planned custom geometric window projects - these require measured surveys, shop drawing approval, and factory fabrication. However, if you have a breached or critically damaged impact window during or after a storm, call (561) 200-8592 and we will dispatch a crew for emergency board-up and temporary weatherproofing while the custom replacement is fabricated. Live phone coverage is available 24/7.
Every custom and geometric window installation is covered by our 365-Day Done Right Promise - if it’s not done right, we make it right - written into the Haven Standard and stamped on your job documentation. Manufacturer warranties on the frame and glass vary by line: PGT and CGI offer limited lifetime warranties on impact-rated frames, ES Windows provides 20-year glass coverage, and ECO Window Systems covers vinyl frames for life with glass pro-rated at 20 years. The documented photo record we provide supports any warranty claim. Call (561) 200-8592 for specific warranty terms on your specified unit.
Clear access to the interior and exterior of the opening, remove window treatments, and gather any HOA or architectural review documentation if your Boca Raton community requires approval for exterior modifications. If you have an existing estimate from another contractor, bring it - we offer a free second opinion that reviews the specification against your opening’s actual requirements. The measured survey takes 45-90 minutes depending on the number and complexity of openings; you keep the template and the survey document. Call (561) 200-8592 to schedule - estimates are free and carry no obligation.
Schedule Your Custom & Geometric Windows Service in Boca Raton Today
Call (561) 200-8592 to schedule your free measured survey. You’ll receive a written price before any work starts, a documented photo record when the job is done, and the 365-Day Done Right Promise stamped on every document. Live phone coverage is available 24/7 - no voicemail queue, no callback window. Whether you’re replacing a failed geometric unit in Spanish River Land or designing an oversized opening for a new build in Mizner Park, we measure once, specify correctly, and install to the Haven Standard.
Written by Sonia Raman, Owner at Sightline Windows & Doors Boca Raton, serving Boca Raton and surrounding communities since 2012.










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