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 Hialeah Homeowners
Custom and geometric window installation in Hialeah typically runs $1,200-$4,800 per opening depending on shape complexity, impact rating, and glazing specification. Sightline Windows & Doors Hialeah measures every custom opening on site, produces a written quote from that survey, and installs to the Haven Standard we’ve followed since 2012. Call (786) 574-2745 to schedule your measured survey - the document you keep is the same one we build from.
Hialeah’s architectural mix tells the story: Mediterranean revivals in Miami Lakes with their arched casements, mid-century ranches in Hialeah Gardens with geometric clerestory banks, and the oversized curtain walls going into new construction from Doral to Miami Springs. Standard rectangular units don’t fit these openings. We’ve installed 18,000+ windows and doors since 2012, and our Custom & Geometric Windows in Hialeah have grown from a specialty to roughly a third of our local work. The reason is straightforward - homeowners who bought between 2015 and 2025 are renovating rather than moving, and they’re replacing the aluminum single-pane shapes that came with the house with impact-rated, energy-efficient custom units that match the original sightlines.
The climate drives the specification. Hialeah’s wind-borne debris zone requires HVHZ (High Velocity Hurricane Zone) certification on any new custom shape. The afternoon sun exposure on west-facing geometric windows in Westview and Brownsville means SHGC (Solar Heat Gain Coefficient) below 0.25 isn’t a luxury, it’s what keeps the utility bill from doubling in July. We specify PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux by performance tier and price range, not by what we have in stock. Every custom order starts with a measured survey you keep, a written price before any work starts, and a documented photo record when the job is done - Haven Clause 1, Haven Clause 4, and the 365-Day Done Right Promise on every opening.
What Our Custom & Geometric Windows Service Includes
Custom Impact Windows
Custom impact windows are non-rectangular or non-standard-sized units built to HVHZ standards for Hialeah’s wind-borne debris zone. You need these when you’re replacing original arched, round, or trapezoidal openings in pre-1992 construction, or when new additions require shaped units that still carry Miami-Dade Notice of Acceptance certification. At Sightline Windows & Doors Hialeah, we template every custom impact opening with a digital measuring system that records sightline, jamb depth, and wall condition to 1/16 inch - the survey document you keep becomes the fabrication order, and the written quote cannot differ from that measurement. We specify PGT and CGI for custom impact shapes in the premium tier, ECO Window Systems and ES Windows for mid-range performance, and always verify the NOA (Notice of Acceptance) number against Miami-Dade’s online database before any deposit is taken.

Geometric & Shaped Windows
Geometric and shaped windows include triangles, pentagons, trapezoids, and other non-rectangular configurations used as accent units, clerestory banks, or gable-end features. You need these when you’re matching original architectural details in Hialeah’s 1950s-1970s housing stock, or when our Custom & Geometric Windows in Miami Gardens and nearby contemporary designs call for angular glazing patterns. Our crew templates geometric openings with a flexible measuring frame that records the actual as-built angles - wall framing in Hialeah’s concrete-block construction often drifts from the architect’s plan by 2-3 degrees, and a geometric unit built from drawings alone will gap at installation. We specify ViewLux for geometric units requiring thin sightlines and maximum glass area, and Therma-Tru for shapes integrated with door systems. Every geometric order includes a full-scale shop drawing for your approval before fabrication.

Arched & Curved Windows
Arched and curved windows feature radius tops, elliptical shapes, or full circular units - common in Mediterranean, Spanish Colonial, and Tudor-revival homes throughout Miami Lakes, Hialeah Gardens, and Coral Gables Custom & Geometric Windows service areas. You need these when the original arched units have failed at the miter joints, when the single-pane arched transom over your front door needs impact-rated replacement, or when you’re replicating historical detail with modern performance. We measure radius windows with a digital radius gauge that records the chord and rise to 1/32 inch - the two measurements that define every arch. CGI and PGT both offer radius-top custom lines with HVHZ certification; we specify by sightline requirement (the visible glass dimension from the interior) and structural loading. Arched units require longer lead times - typically 8-12 weeks versus 4-6 for rectangular custom shapes - and we document that timeline in writing at the quote stage, not at delivery.

Oversized Openings
Oversized openings are single units or mulled combinations exceeding standard manufacturing dimensions, typically over 60 square feet of glazed area. You need these for contemporary great-room walls in new Hialeah construction, for replacing multiple small units with one structural glass wall in renovations, or for matching the scale of original mid-century designs in Miami Shores, North Miami, and Custom & Geometric Windows - Pembroke Pines projects. Oversized units require engineering review for wind load, deflection, and anchorage - we submit to the manufacturer’s structural department with our field measurements, wall type, and exposure category. The Haven Standard requires that we document the structural approval letter in your job file before installation. We specify PGT and CGI for oversized impact-rated openings, and ViewLux for non-impact oversized units in protected exposures. Crane or boom lift access is often required for oversized installation; we coordinate that in the written scope, not as a surprise addition.

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’ve specified and installed hundreds of PGT custom and geometric units across Hialeah, Miami Lakes, and Opa-locka. PGT’s WinGuard and EnergyVue custom lines offer the widest range of HVHZ-certified shapes - radius tops up to 72 inches wide, trapezoids, triangles, and pentagons in impact-rated laminated glass. We maintain current PGT certification and access to their custom engineering department for oversized or non-standard structural requests. In Hialeah’s concrete-block construction, PGT’s frame depth options (2 5/8 inch, 3 1/4 inch, and 4 1/2 inch) let us match the existing wall condition without build-out strips that compromise the sightline.
CGI custom shapes are our specification for projects requiring the slimmest sightlines in impact-rated performance - their Estate Collection offers a 2 1/2-inch frame depth with HVHZ certification that we use frequently in Miami Lakes renovations where original steel casement sightlines must be preserved. We’ve installed CGI radius tops in Spanish Colonial revivals from Hialeah Gardens to Miami Springs, and their custom division turns around shop drawings in 10 business days, which we forward to you for approval before any fabrication begins. Whether you have PGT, CGI, or any other make, we can help - we also specify CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux by what the opening requires, not by what is in stock.
Before
AfterSigns You Need Custom & Geometric Windows Right Now
- The original arched or geometric unit has visible seal failure. Fogging between panes, mineral deposits at the bottom of the glass, or a milky haze that doesn’t wipe off means the insulated glass seal has failed. In Hialeah’s humidity, this progresses to frame corrosion and interior water damage within one to two rainy seasons - and custom shapes can’t be swapped off-the-shelf, so the lead time matters.
- You’re replacing rectangular units in a wall with original geometric accents. The mismatch is visual, but the performance gap is the real problem - new energy-efficient rectangles adjacent to single-pane original shapes create thermal bridging that condenses moisture and drives up cooling load. We see this frequently in 1960s-1970s Hialeah ranches where clerestory triangles or trapezoids were never upgraded.
- Post-Hurricane Irma or Andrew repairs never matched the original. Hialeah has thousands of homes where emergency board-ups after 1992 or 2017 were replaced with standard rectangles “for now” - the temporary fix became permanent, and the architectural integrity of the elevation was lost. Custom replacement restores the original sightline and brings the opening up to current HVHZ code.
- Your window contractor has told you “that shape isn’t available anymore.” This usually means they don’t have a custom fabrication relationship or don’t want the measurement liability. We template, quote, and warrant custom shapes under the Haven Standard - the 365-Day Done Right Promise applies to geometric and arched units exactly as it does to standard rectangles.
- You’re adding square footage and the new opening must match existing custom details. Miami-Dade building code requires new construction to match the impact and energy performance of the existing structure when alterations exceed 50% of wall area. A new rectangular unit in a wall of arched windows triggers that compliance issue - custom matching is often the only path to permit approval.
Our Custom & Geometric Windows Process - Step by Step

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Measured survey and documentation. Our technician arrives at your Hialeah property with a digital measuring system, flexible radius gauges, and a camera. We record every dimension of the existing opening - width, height, depth, radius or chord/rise for arches, interior and exterior wall conditions, and surrounding structure. You receive a copy of this survey before we leave. Haven Clause 1: Have it in writing.
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Performance specification and brand selection. Based on your exposure (east/west sun load, wind zone, floor height), we specify from PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, or ViewLux by U-factor, SHGC, VT (visible transmittance), and impact rating. We explain each specification in plain terms and show you the manufacturer’s published performance data - not our interpretation of it.
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Written quote and shop drawing approval. The quote derives directly from the measured survey; it cannot differ. For custom shapes, we obtain a shop drawing from the manufacturer showing the exact unit configuration, sightline dimensions, and frame profile. You approve this drawing in writing before fabrication begins. Lead times are stated in the quote: typically 4-6 weeks for geometric shapes, 8-12 weeks for radius or oversized units.
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Fabrication and delivery coordination. We track your order through the manufacturer’s production schedule and confirm delivery date 72 hours in advance. For oversized units requiring crane access in Hialeah’s dense neighborhoods - Westview, Brownsville, or the commercial corridors near Okeechobee Road - we coordinate street closure or lift positioning permits as needed, included in the written scope.
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Installation, inspection, and documentation. Our background-checked, uniformed crew installs to the manufacturer’s published installation instructions and Miami-Dade building code. We pull permits where required and schedule inspections. Upon completion, you receive the documented photo record of the installed unit, the final invoice matching the original quote, and the 365-Day Done Right Promise documentation. Haven Clause 4: Evidence on every job.
How Much Does Custom & Geometric Windows Cost in Hialeah?
A typical geometric or shaped window installation in Hialeah runs $1,200-$2,800 per opening for standard custom shapes in non-impact performance, and $2,400-$4,800 for HVHZ impact-rated custom or geometric units. Arched and radius-top windows fall in the $2,800-$4,200 range depending on radius complexity and impact certification. Oversized openings start at $4,500 and scale with structural engineering requirements, crane access, and glass thickness.
| Custom Window Type | Typical Range in Hialeah | Primary Cost Drivers |
|---|---|---|
| Geometric shapes (triangle, trapezoid, pentagon) | $1,200 - $2,800 | Glass type, frame depth, quantity |
| Impact-rated geometric | $2,400 - $4,800 | HVHZ certification, laminated glass, structural anchorage |
| Arched/radius top | $2,800 - $4,200 | Radius precision, custom jamb, impact rating |
| Oversized openings (60+ sq ft) | $4,500 - $12,000+ | Engineering, crane, glass thickness, mulled configuration |
What moves the price within these ranges: frame material (aluminum versus thermally broken aluminum), glass package (single-pane, insulated, or laminated impact), and installation complexity (block wall versus frame construction, interior trim repair, or stucco patching). We see homeowners in Hialeah overpay when they accept a quote based on rough opening dimensions rather than as-built measurement - the unit arrives, doesn’t fit, and the “change order” adds 15-30%. Haven Clause 1 prevents this: our measured survey and quote are the same document.
What’s included in our free estimate: the on-site measured survey you keep, performance specification with manufacturer data sheets, written line-item quote, shop drawing for custom shapes, permit coordination if required, and the 365-Day Done Right Promise. What’s not included until you approve: fabrication, delivery, installation, and final documentation. No deposit is required to receive the estimate. Bring us a competitor’s written quote - we offer a free second opinion under the Haven Standard.
Custom & Geometric Windows Near Hialeah - Our Service Area

We install custom and geometric windows across Hialeah and the surrounding metro core - Custom & Geometric Windows in Miami Lakes for the Mediterranean and Spanish Colonial stock near Main Street, Custom & Geometric Windows in Opa-locka for the Moorish-revival arched details that define that city’s architecture, and throughout Miami Springs, Hialeah Gardens, Westview, Doral, Brownsville, Miami Gardens, Miramar, Miami Shores, and North Miami. Typical response time for a measured survey is 24-48 hours from your call. We maintain current Miami-Dade and Broward county licensing for permit pull in all service areas.
Serving Hialeah, FL - Our Local Coverage Area
We’re based in the Hialeah 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 Hialeah

Custom and geometric windows are non-rectangular or non-standard-sized units - including triangles, trapezoids, arches, circles, and oversized configurations - fabricated to specific measurements rather than pulled from stock inventory. In Hialeah’s architectural context, these shapes match original Mediterranean, mid-century, and contemporary designs that standard rectangles would compromise. Call (786) 574-2745 for a measured survey of your specific opening - estimates are free.
The installation of a custom or geometric window typically requires one day per opening for standard shapes, and up to two days for oversized or complex radius units. Lead time from measurement to delivery is 4-6 weeks for geometric shapes and 8-12 weeks for arched or custom-engineered oversized units - we state this in writing at the quote stage, not at delivery. Call (786) 574-2745 to schedule your survey and receive a timeline specific to your project.
Custom and geometric windows in Hialeah typically cost $1,200-$4,800 per opening depending on shape complexity, impact rating, and glass specification, with oversized engineered openings starting at $4,500. The measured survey we provide determines the exact price - no estimate is given without on-site documentation. Call (786) 574-2745 for your written quote; estimates are free and include the survey document you keep.
Yes - we are current certified installers for both PGT and CGI custom and geometric lines, with direct access to their engineering departments for non-standard requests. We’ve installed hundreds of PGT and CGI custom shapes across Hialeah, Miami Lakes, and Opa-locka, and we verify every unit’s Miami-Dade Notice of Acceptance before fabrication. Whether you have PGT, CGI, or any other make, we can help - call (786) 574-2745 for a free second opinion on any written estimate.
We provide emergency board-up and temporary weather sealing for damaged custom windows to secure the opening, but custom fabrication and replacement cannot be completed same-day - the manufacturing lead time is inherent to the product. Our 24/7 live phone coverage means you reach a person who can dispatch temporary protection and begin the measurement process immediately. Call (786) 574-2745 at any hour for emergency response and next-day survey scheduling.
Every custom and geometric window installation is covered by the 365-Day Done Right Promise - if it’s not done right, we make it right, written into the Haven Standard, not offered as a courtesy. Manufacturer warranties on glass and frame vary by brand (PGT, CGI, and others offer 10-year to lifetime coverage) and are documented in your job file. The 365-Day Promise covers installation workmanship regardless of manufacturer terms. Call (786) 574-2745 for warranty documentation specific to your specification.
Clear interior access to the opening and remove window treatments if possible - our technician needs to measure the actual frame, not the visible glass. For exterior access in gated communities or buildings with limited entry, confirm access codes or contact information in advance. You don’t need to know your preferred brand or glass type; we bring performance samples and manufacturer data for specification during the survey. Call (786) 574-2745 to schedule - the appointment typically takes 30-45 minutes per opening, and you keep the measured survey.
Schedule Your Custom & Geometric Windows Service in Hialeah Today
Call (786) 574-2745 to schedule your 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 opening. Our phone is answered by a live person 24/7 - no voicemail queue, no callback window. Bring us any competitor’s written estimate for a free second opinion under the Haven Standard.
Written by Sonia Raman, Owner at Sightline Windows & Doors Hialeah, serving Hialeah, Miami Lakes, Opa-locka, and surrounding communities since 2012.










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