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 Miami Gardens Homeowners
Our Custom & Geometric Windows in Miami Gardens typically cost $1,800-$8,500 per opening depending on shape complexity, impact rating, and size, with most measured surveys scheduled within 48 hours. Sightline Windows & Doors has installed 18,000+ openings across South Florida since 2012, each with a written price before any work started and a documented photo record when finished. Call (754) 354-6649 to schedule your free measured survey.
The flat ranch roofs and mid-century modern builds common in Miami Gardens neighborhoods like Scott Lake and Bunche Park weren’t designed for standard rectangular stock. Arched clerestories, triangular gable windows, and oversized sliding walls are structural features, not decorative afterthoughts. When the original glazing fails, replacing it with off-the-shelf units destroys the sightline the architect intended and often breaches the envelope that keeps wind-driven rain out during hurricane season.
We’ve measured and installed custom and geometric windows in Miami Gardens since 2012 under the Haven Standard. Every engagement starts with a measured survey the customer keeps. The written quote cannot differ from that document. Our technicians are background-checked, uniformed, and identified by license number before arrival. The 365-Day Done Right Promise is stamped on every job, not offered as a courtesy.
What Our Custom & Geometric Windows Service Includes
Custom Impact Windows
Custom impact windows are engineered to Miami-Dade County’s HVHZ protocols, fabricated to non-rectangular specifications, and installed with reinforced anchoring that matches the original structural intent. For similar work in neighboring areas, see our Custom & Geometric Windows in Hialeah. In Miami Gardens, we regularly see these specified for homes in Lake Lucerne and Norland where the original 1960s and 70s construction featured angled or oversized openings that modern code requires to resist 170 mph wind loads. Sightline specifies custom impact glass from PGT, CGI, and ES Windows, measured to the exact sightline of the existing frame, with the written price locked to that measurement before fabrication begins.

Geometric & Shaped Windows
Geometric and shaped windows include triangles, trapezoids, pentagons, and polygons that serve as fixed architectural elements or companion pieces to operable units. These are common in the ranch and contemporary homes near Miami Gardens Drive and NW 27th Avenue, where clerestory bands and accent windows break up long rooflines. We also install Custom & Geometric Windows - Pembroke Pines homes with similar architectural styles. Sightline measures each angle with a digital protractor and cross-checks against the manufacturer’s template library; the quote includes the exact shape code, glazing specification, and flange type, with no variance between survey and invoice under Haven Clause 1.

Arched & Curved Windows
Arched and curved windows require radius measurements taken at multiple points along the head jamb, with the center of arc verified against the rough opening. Miami Gardens has significant stock of Spanish Revival and Mediterranean-influenced homes in neighborhoods like Carol City where these shapes are original features. Our Custom & Geometric Windows - Hollywood service covers similar Spanish Revival properties to the north. We’ve replaced curved units where the previous installer used segmented flat glass, creating visible sightline breaks and leak points. Sightline sources true radius glass from ECO Window Systems and Mr-Glass when the application demands it, and documents the radius calculation in the measured survey the customer keeps.

Oversized Openings
Oversized openings exceed standard manufacturer dimensions and require engineered reinforcement, custom glass fabrication, and often crane or specialized lifting equipment. In Miami Gardens, we see these in newer construction near Hard Rock Stadium and in renovated mid-century homes where walls have been opened to create indoor-outdoor flow. The structural header, deflection limits, and glass thickness are calculated per opening, not guessed. Sightline’s measured survey includes frame readings, sightline measurements, and product specs; the written price covers the glass, the reinforcement, and the lift, with no change orders.

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, not by what is in stock. For impact-rated custom shapes in Miami Gardens, we regularly draw from PGT and CGI, both Florida manufacturers with deep template libraries for geometric and arched configurations. We’ve installed hundreds of PGT custom impact units in Dade and Broward counties, and we stock their OEM hardware and glazing beads for service calls. ES Windows provides custom impact options at a mid-tier price point with strong availability on oversized and geometric configurations; their lead times are typically 4-6 weeks for non-standard shapes. ECO Window Systems manufactures true radius and curved impact glass with Miami-Dade approval, which we specify when the sightline demands a seamless curve rather than a segmented approximation.
Mr-Glass produces custom laminated and insulated glass for non-impact and impact applications, including oversized lites that other fabricators decline. Therma-Tru and ViewLux round out our geometric and custom capabilities in door-lite and sidelite configurations. Whether you have PGT, CGI, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, ViewLux, or any other make, we can measure, specify, and install to the Haven Standard. Bring us a competitor’s written estimate and we’ll review it at no charge under our Free Second Opinion policy.
Before
AfterSigns You Need Custom & Geometric Windows Right Now
- Visible sightline breaks in curved or angled glass. Segmented flat glass substituted for true radius units creates visible joints where water and air penetrate. In Miami Gardens’ summer storm pattern, these gaps channel wind-driven rain into the wall cavity, causing damage that doesn’t appear until the drywall stains.
- Original geometric windows with single-pane glazing. Fixed triangular or arched windows from the 1960s and 70s were often installed without insulation or low-E coating. The U-factor on these units is typically 1.0 or higher, meaning your HVAC system works against heat gain for twelve months of the year in Miami Gardens’ climate.
- Impact fabricator has discontinued your shape template. Several manufacturers have narrowed their geometric catalogs since 2020. If your arched or trapezoid window needs replacement and the original template is obsolete, you need a custom fabrication survey that can reverse-engineer the opening and specify from an active catalog.
- Condensation between lites on insulated geometric units. Seal failure in shaped insulated glass is often written off as unrepairable because the unit is “custom.” The glass is replaceable; the measurement and specification are what matter. We document the existing sightline and order a direct replacement with matching sightline dimensions.
- Structural movement has distorted the frame of an oversized opening. Miami Gardens’ limestone substrate and seasonal moisture variation can shift header supports in walls with large glass areas. The window isn’t the problem; the opening is. Our survey includes frame readings that identify deflection or racking before the new unit is ordered.
Our Custom & Geometric Windows Process - Step by Step

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Measured survey with documented sightline readings. Our technician arrives at the scheduled time, verified by license number under Haven Clause 3. We measure every angle, radius, and sightline dimension with digital tools, photograph the existing condition, and record frame readings for deflection or racking. You keep this survey document.
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Written specification and locked price. We specify the manufacturer, product line, glazing package, and hardware from our eight verified lines, matched to the opening’s performance requirements. The written quote is the same document as the measured survey; Haven Clause 1 means the price cannot change unless you change the scope.
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Template verification and fabrication. For geometric and arched units, we submit our measurements to the manufacturer’s template engineering team for verification. This step catches any discrepancy between field measurement and production capability before glass is cut.
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Installation with documented photo record. Our uniformed, background-checked crew installs to the manufacturer’s specification and Miami-Dade code. We photograph each phase, including flashing details, anchoring, and final sightline alignment. This evidence is included on every job as standard, not an upsell, under Haven Clause 4.
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Final inspection and 365-Day Done Right Promise activation. We review the installation with you, verify operation and sightline alignment, and provide the written warranty documentation. If anything is not done right, we make it right, written into the Haven Standard, not a verbal assurance.
How Much Does Custom & Geometric Windows Cost in Miami Gardens?
A typical custom impact window in a standard geometric shape, such as a triangle or trapezoid, runs $1,800-$3,400 installed in Miami Gardens. Arched and curved units requiring true radius fabrication typically range $2,800-$5,200 depending on radius complexity and glass size. Oversized openings with engineered reinforcement and crane assist can run $4,500-$8,500 or more, driven by structural requirements and lift logistics.
Several factors move the price within these ranges. Impact rating versus non-impact is the largest single variable; Miami-Dade HVHZ certification adds 30-50 percent to the glass package but is required for most replacements in the city. The number of lites and the coating specification, low-E versus clear, affect both first cost and long-term HVAC load. Reinforcement of the existing opening, common in oversized replacements, is priced per linear foot of header and jack stud modification.
To avoid overpaying, demand a written price before any work starts, and verify that the quote references a specific manufacturer product number, not a generic description. Sightline’s measured survey includes this specification; the quote and the survey are the same document. Our free estimate includes the measured survey you keep, the written scope, and the locked price. Call (754) 354-6649 for an exact quote on your opening.
Custom & Geometric Windows Near Miami Gardens - Our Service Area

We install and replace custom and geometric windows across Miami Gardens and the surrounding metro core, including Custom & Geometric Windows in Opa-locka, Custom & Geometric Windows in Golden Glades, West Park, Westview, Pembroke Park, Miami Lakes, North Miami, Pinewood, Miramar, Hialeah, and Miami Shores. Typical measured survey scheduling is within 48 hours for Miami Gardens addresses, with fabrication lead times of 4-8 weeks for custom geometric shapes depending on manufacturer and season. Our technicians are dispatched from our local operation, not routed from a regional hub, which keeps response times predictable and allows site revisits if template verification requires remeasurement.
Serving Miami Gardens, FL - Our Local Coverage Area
We’re based in the Miami Gardens 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 Miami Gardens

Custom and geometric windows are fabricated to non-rectangular shapes, non-standard dimensions, or specific architectural sightlines rather than pulled from stock inventory. They include triangles, trapezoids, arches, true radius curves, and oversized lites that require engineered reinforcement. In Miami Gardens, these are common in mid-century modern, Spanish Revival, and contemporary homes where the original design intent depends on specific glass shapes.
The measured survey takes 45-90 minutes depending on opening complexity. Fabrication lead time is typically 4-8 weeks for geometric and custom shapes from our verified manufacturer lines. Installation of a single custom unit takes 2-4 hours; oversized openings with structural reinforcement may require 1-2 days. We schedule installation only after template verification is complete, to avoid field modifications that compromise the sightline. Call (754) 354-6649 to schedule your measured survey.
Custom geometric impact windows in Miami Gardens typically range $1,800-$3,400 for standard shapes, $2,800-$5,200 for arched or curved units, and $4,500-$8,500+ for oversized openings with structural work. The price varies by impact rating, glass specification, and whether the opening requires reinforcement. Our written quote, provided before any work starts, includes all labor, materials, and documentation. Call (754) 354-6649 for an exact quote, estimates are free.
Yes. We specify and install custom and geometric windows from PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux, selected by what your opening requires. We maintain current template libraries and direct fabrication relationships with each manufacturer. If your existing custom window is from one of these lines, we can match the sightline and specification for replacement. Call (754) 354-6649 with your manufacturer and model information.
We do not offer same-day installation for custom and geometric windows; these require measured survey, template verification, and fabrication that cannot be bypassed. For openings that are compromised, we can provide emergency board-up and temporary weather sealing, then expedite the measured survey and fabrication sequence. Live phone coverage is available 24/7 to assess the situation and schedule the appropriate response. Call (754) 354-6649 for immediate assistance.
Every installation is covered by the 365-Day Done Right Promise, written into the Haven Standard: if it’s not done right, we make it right. Manufacturer warranties on the glass and frame vary by product line, typically 10-20 years on glass seal and lifetime on frame integrity for impact-rated units. We provide the written warranty documentation at final inspection and retain the photo record as evidence of proper installation. The warranty is transferable to subsequent owners in most cases.
Clear access to the interior and exterior of the opening, including any window treatments, furniture, or landscaping that obstructs the frame. If you have the original architectural drawings or previous window specifications, have them available; they accelerate template verification even if we verify all dimensions in the field. Note any operational issues, leaks, or visible damage so we can photograph and document them during the survey. The measured survey takes 45-90 minutes; you keep the document, and the written quote references it directly. Call (754) 354-6649 to schedule.
Schedule Your Custom & Geometric Windows Service in Miami Gardens Today
Call (754) 354-6649 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 on every installation. Live phone coverage is available 24/7. Bring us a competitor’s written estimate and we’ll review it at no charge.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Miami Gardens since 2012.










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