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 Opa-locka Homeowners
Custom and geometric windows in Opa-locka typically cost $1,800-$6,500 per opening depending on shape complexity, glass specification, and whether impact rating is required. Most shaped units take 4-8 weeks from measured survey to installation, with arched and oversized openings at the longer end of that range. We’re Sightline Windows & Doors Opa-locka, and we’ve installed custom glazing in the Art Deco and Moorish Revival homes this city is known for since 2012 - every job starting with a written price and ending with a documented photo record.
Opa-locka’s architectural character creates specific challenges standard window stock doesn’t solve. The historic district’s pointed arches and keyhole windows, the mid-century ranches near NW 135th Street with their butterfly roofs and clerestory bands, and the newer construction in Magnolia North with its mixed contemporary detailing all demand shapes and sizes that come off a drawing board, not a warehouse shelf. Our measured surveys capture the exact sightline and frame conditions, and that document becomes your written quote - Haven Clause 1, no exceptions. Call (786) 671-8642 to schedule your free measured survey.
What Our Custom & Geometric Windows Service Includes
Custom Impact Windows
Custom impact windows are shaped or sized units built to Miami-Dade County’s HVHZ code with laminated glass and reinforced frames that withstand missile-impact testing. You need these when your home’s original openings don’t match standard impact-rated dimensions, or when you’re preserving a distinctive architectural profile while meeting post-Andrew building requirements. At Sightline Windows & Doors Opa-locka, we specify custom impact units from PGT and CGI with documented NOA certificates, and our measured survey records the exact jamb depth, sill slope, and anchor pattern your masonry or frame wall requires - no field modifications that compromise the rating.

Geometric & Shaped Windows
Geometric and shaped windows are fixed or operable units manufactured to angles and curves outside the rectangular norm - triangles, trapezoids, pentagons, octagons, and compound shapes. They’re specified when a gable end needs a matching rake, a stairwell landing wants a circular accent, or a modern facade calls for an irregular glazing grid. We work with CWS and ES Windows on geometric profiles, and our survey team uses digital angle finders and laser plumb lines to transfer your opening’s geometry to the manufacturer within 1/16-inch tolerance - the document you keep shows every vertex and radius.

Arched & Curved Windows
Arched and curved windows feature a radius top, segmental head, or full round configuration, common in Mediterranean Revival, Spanish Colonial, and Art Deco architecture throughout Opa-locka. You need these for historic replacement, new construction matching the city’s established character, or when a flat-headed unit would destroy a facade’s proportional rhythm. We source radius-top units from ECO Window Systems and ViewLux with custom jamb extensions and curved interior stops, and we photograph every rough opening before and after installation - part of the documented photo record included on every job under Haven Clause 4.

Oversized Openings
Oversized openings are window assemblies exceeding standard manufacturer dimensions, typically requiring steel or aluminum reinforcement, multi-point locking hardware, and either monolithic heavy glass or insulated laminated units with structural silicone. You need these for great-room glazing walls, corner window removals, or when combining multiple openings into a single visual plane. Our team engineers the header and sill support with LVL or steel calculations as needed, pulls the permit through Miami-Dade Building Department, and passes inspection with the same written scope we quoted - no change orders, no surprises. We’ve handled units up to 120 inches wide in Opa-locka homes, and the photo record shows the structural connection detail for your files.

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, measured, and installed custom and geometric units from CGI since 2014, including their Estate Collection radius-top impact windows and their custom polygonal fixed units for gable applications. Their laminated glass configurations and aluminum frame depths are familiar territory - we know which CGI profiles accept custom jamb depths without voiding the NOA, and we stock their common snap-in glazing beads and weatherstrip profiles for service calls.
CWS and ES Windows handle the bulk of our non-impact geometric work and many impact-rated custom shapes respectively. CWS’s vinyl and aluminum hybrid frames work well for oversized openings where thermal performance matters, and their custom extrusion program accommodates angles we don’t see from other manufacturers. ES Windows’ impact-rated geometric line carries Florida Product Approval and Miami-Dade NOA for most common radius and polygon configurations - we keep their current submittal book on every survey vehicle. ECO Window Systems rounds out our custom arched and curved offerings with competitive lead times on radius-top vinyl units. Whether you have CGI, CWS, ES Windows, ECO Window Systems, or any other make, we can measure, specify, and install to the Haven Standard.
Before
AfterSigns You Need Custom & Geometric Windows Right Now
- Your existing shaped window has visible seal failure or frame deterioration. Fogging between lites, mineral staining on the interior face, or soft rot in a wood-clad radius frame means the unit’s structural integrity is compromised. In Opa-locka’s salt-air environment, aluminum frame pitting at the sill corner often precedes glass-to-frame seal failure by 18-24 months.
- You’re replacing standard rectangles in an architecturally significant home. Installing flat-stock windows in a Moorish Revival facade or a mid-century modern with clerestory bands destroys the design intent and can trigger historic district review if you’re in the Opa-locka Historic District. Custom shapes preserve the sightline your architect specified.
- Your insurance or building department requires impact rating on non-standard openings. Miami-Dade HVHZ compliance doesn’t exempt unusual shapes - every glazed opening must meet TAS 201, 202, and 203 or ASTM E1886/E1996. Custom impact-rated geometric units from verified manufacturers are the only legal path for shaped openings in the High Velocity Hurricane Zone.
- You’ve received a quote that doesn’t include a measured survey document. A radius or angle quoted from a photograph or rough opening measurement will arrive wrong - guaranteed. If your contractor hasn’t put a laser and angle gauge to your opening, you don’t have a quote, you have a guess. Haven Clause 1 exists because we’ve replaced too many competitor units that were ordered from bad data.
- You’re combining multiple openings into a single glazed wall. Removing mullions and expanding the rough opening requires engineered headers, permit drawings, and custom-sized units with structural ratings. This isn’t a handyman project - the header calculation, impact rating, and installation sequence all require documented trade competence.
Our Custom & Geometric Windows Process - Step by Step

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Measured survey and documentation. Our technician arrives in a marked Sightline vehicle, uniformed, with license number provided in advance per Haven Clause 3. We laser-measure every dimension, record jamb squareness with a digital level, photograph the interior and exterior conditions, and document any structural or finish repair needed. You keep the measured survey; it becomes the basis for your written quote.
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Written quote with product specification. Within 24 hours, you receive a written scope naming the manufacturer, series, glass configuration, U-factor, SHGC, and impact rating if required. The price is fixed - Haven Clause 5, no surprises. For custom shapes, we include a CAD drawing or manufacturer shop drawing for your approval before production.
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Permit application and approval. We pull the permit through Miami-Dade Building Department for all work requiring it, including structural modifications for oversized openings. Our applications include the product approval, Miami-Dade NOA or Florida Product Approval, and engineered drawings where header modifications are involved. You don’t visit the building department - we handle the submittal, correction response, and scheduling.
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Manufacturing and delivery. Custom and geometric units typically ship 4-8 weeks after drawing approval, with arched and oversized units at the longer end. We coordinate delivery to avoid exposure on site - custom shapes don’t stack in the garage for two weeks. Our warehouse in the Opa-locka area receives, inspects, and holds until your installation date.
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Installation, inspection, and photo record. Our crew installs per the written scope, seals with backer rod and specified sealant, and finishes interior trim to match. We call for inspection if required, pass it, and provide your documented photo record showing rough opening, installed unit, and finished detail. The 365-Day Done Right Promise begins at completion - if it’s not done right, we make it right, written into the Haven Standard, not a verbal assurance.
How Much Does Custom & Geometric Windows Cost in Opa-locka?
A typical custom geometric window in Opa-locka runs $1,800-$4,200 for a non-impact fixed polygonal unit, $2,800-$5,500 for impact-rated custom shapes, and $4,500-$6,500 for oversized openings requiring structural engineering and steel reinforcement. Arched and curved units fall in the $2,200-$4,800 range depending on radius complexity and whether the arch is fixed or operable. These are installed prices based on standard rough opening conditions - rot repair, stucco patching, or interior trim replacement are quoted separately if needed.
Several factors move the price within these ranges. Glass specification is the largest: laminated impact glass adds 40-60% over tempered non-impact, and low-E coatings with argon fill add 8-12% to either. Frame material matters - aluminum custom extrusions run 15-25% above vinyl equivalents, and thermally broken aluminum sits between. Shape complexity drives manufacturing cost: a simple trapezoid is near-standard pricing, while a compound curve or segmented radius requires custom die work. Finally, access and height affect installation labor - second-story openings over 20 feet from grade require scaffolding or boom equipment in our standard pricing matrix.
To avoid overpaying, get a measured survey from at least two contractors and compare the documents, not just the bottom line. A quote without jamb depth, sill slope, and anchor pattern specified is incomplete - you’ll pay the difference in field modifications or premature failure. Sightline offers a free second opinion on any written estimate: bring us a competitor’s quote and we’ll review it at no charge, line item by line item. Our written price includes the measured survey, the product specification, installation, permit, inspection, and photo record - no item is held back to reduce the apparent total. Call (786) 671-8642 for your exact quote; estimates are free.
Custom & Geometric Windows Near Opa-locka - Our Service Area

We install custom and geometric windows across Opa-locka and the surrounding metro core, including Westview, Pinewood, Miami Gardens, Golden Glades, Hialeah, Miami Lakes, Miami Shores, North Miami, Brownsville, Miami Springs, and Hialeah Gardens. Typical response time for a measured survey in Opa-locka proper is 24-48 hours from your call; Westview and Pinewood residents often see next-day availability. The architectural variety across these neighborhoods - from Miami Shores’ mid-century modern to Hialeah’s Mediterranean Revival - means our survey vehicles carry angle gauges, radius templates, and product submittals for every manufacturer we specify.
Serving Opa-locka, FL - Our Local Coverage Area
We’re based in the Opa-locka 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 Opa-locka

Custom and geometric windows are manufactured to dimensions, angles, or curves outside standard rectangular stock - including triangles, trapezoids, arches, circles, and compound shapes. They’re specified when your home’s architecture, existing openings, or design intent requires a non-standard glazed unit that must be drawn, engineered, and fabricated to order.
The measured survey and quoting phase takes 1-3 days, manufacturing runs 4-8 weeks depending on shape complexity, and installation of a single unit typically completes in one day. Oversized openings or jobs requiring structural modification may extend to two days. We schedule installation only after the unit is in our warehouse and inspected - no “dry” delivery dates that leave you with plywood for weeks.
Custom geometric windows in Opa-locka typically range from $1,800 for a simple non-impact fixed shape to $6,500 for an oversized impact-rated assembly with structural engineering. Impact rating, frame material, glass specification, and shape complexity are the main cost drivers. Call (786) 671-8642 for an exact quote - estimates are free, and we provide a written price before any work starts.
Yes. We specify, measure, and install custom and geometric units from CGI and CWS regularly, and we maintain current submittals, NOA documentation, and common service parts for both lines. Our technicians are trained on their installation requirements, and our quotes name the specific series and configuration - not “or equivalent.”
We provide board-up and temporary weather sealing for damaged custom windows, but manufactured replacement cannot be expedited below the 4-8 week fabrication timeline - custom shapes aren’t warehouse stock. For emergency weather protection, call (786) 671-8642; our live operator dispatches a crew for temporary measures while your replacement unit enters production.
Every 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 since 2012. Manufacturer warranties on glass and frame vary by line: CGI offers a limited lifetime warranty on vinyl frames and 20 years on laminated glass, CWS provides 20 years on glass and 10 on frames for their custom lines. We document your warranty registration and provide the paperwork in your job file.
Clear interior access to the opening and remove window treatments if possible; our survey requires 3-4 feet of clear space on all sides for laser measurement and photography. Gather any existing permits, product approvals, or architectural drawings if this is a replacement in a historically regulated area. You don’t need to measure anything yourself - our survey captures every dimension, angle, and condition. Call (786) 671-8642 to schedule; estimates are free.
Schedule Your Custom & Geometric Windows Service in Opa-locka Today
Call (786) 671-8642 to schedule your free measured survey. You’ll receive a written price before any work starts, a background-checked uniformed technician identified by license number, and a documented photo record when the job is done - every promise enforced by the Haven Standard we’ve operated under since 2012. No voicemail queues: a live person answers 24/7.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Opa-locka since 2012.










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