Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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Before
AfterTrusted Custom & Geometric Windows for Kendall Homeowners
Custom and geometric windows in Kendall, FL typically cost $2,800 to $8,500 per opening depending on shape complexity, impact rating, and glazing specification. Most measured surveys are scheduled within 48 hours, with installation timelines ranging from 4 to 12 weeks for custom-fabricated units. Call (786) 321-3319 to receive a written price before any work begins.
Since 2012, Sightline Windows & Doors has governed every one of its 18,000+ installations under the Haven Standard, a documented protocol that requires the measured survey and the written quote to be the same document. In Kendall, we regularly see geometric window failures originating from two sources: original builders who installed stock rectangular units in arched openings with painted block-off panels, and homeowners who purchased custom shapes without verifying the fabricator’s Miami-Dade Notice of Acceptance for impact-rated configurations. For homeowners in nearby Coral Gables seeking properly certified custom shapes, we offer Coral Gables Custom & Geometric Windows with full NOA verification. The humid subtropical climate here, with its 155-mph design wind speeds and salt-laden air, punishes improper glazing specification faster than inland markets. Our technicians arrive uniformed, background-checked, and identified by license number, carrying the measured survey you keep and the written price that governs the job. Live phone coverage is available 24/7.
What Our Custom & Geometric Windows Service Includes
Custom Impact Windows
Custom impact windows are fabricated to non-rectangular dimensions while maintaining Miami-Dade County’s HVHZ certification for wind-borne debris resistance. You need these when your opening was designed for a specific architectural statement, a corner condition, or a historical profile that stock units cannot fill, and when that opening must still meet Florida Building Code Chapter 16 requirements for pressure and impact. At Sightline Windows & Doors Kendall, we specify custom impact units from PGT and CGI with laminated glass interlayers rated for the specific exposure category of your elevation, then document the NOA certificate, the design pressure calculation, and the installation photograph in the record you receive at completion.
Geometric & Shaped Windows
Geometric and shaped windows include triangles, trapezoids, pentagons, and polygons used as standalone accent units or in combination assemblies above or beside rectangular openings. You need these when your home’s design calls for gable-end glazing, stairwell landings with angular ceiling planes, or clerestory banks where standard rectangles would interrupt the intended sightline. We measure each geometric opening with digital angle finders and laser distance meters, then transmit those coordinates directly to the fabricator’s CNC cutting station; the template we generate becomes the first page of your written quote, so the price and the measurement are inseparable.
Arched & Curved Windows
Arched and curved windows incorporate radius tops, full rounds, ellipses, or segmented curves that require thermal bending of vinyl profiles, aluminum extrusions, or fabrication of fixed curved steel. You need these for Mediterranean Revival entries, Palladian assemblies, or any opening where the architect specified a curved head condition that stock springline units cannot replicate. In Kendall’s Pinecrest-adjacent neighborhoods and the older sections of Glenvar Heights, we regularly encounter original arched openings that were fitted with flat-topped replacements and painted block-offs; our measured survey documents the true radius, the chord width, and the rise, then specifies either a true curved unit from ViewLux or a segmented approximation depending on your performance requirements and budget.
Oversized Openings
Oversized openings exceed standard fabrication limits, typically wider than 60 inches or taller than 96 inches, and require reinforced framing, multi-point hardware, and often crane or boom-lift installation. You need these when you’re combining multiple openings into a single glazed wall, installing a window-wall system in a new addition, or replacing failed curtain wall sections in mid-century modern homes common in South Miami and Palmetto Bay. We engineer the lifting plan, the temporary weather protection, and the structural attachment as part of the written scope, with no change orders permitted once the document is signed; the Haven Standard’s No Surprises clause governs every oversized opening we touch.
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 PGT since 2012, including their WinGuard and EnergyVue lines with custom radius tops and polygon configurations. Their laminated impact glass and reinforced vinyl frames are our standard specification for Kendall homes in flood zones and high-velocity hurricane zones where the NOA must be filed with the building department. We’ve also completed hundreds of installations using CGI’s Estate Collection for arched and oversized openings in Mediterranean and Spanish Colonial homes throughout Palmetto Bay and Pinecrest, where the aluminum frame’s narrow sightlines preserve the architectural detail that thicker profiles would obscure.
Therma-Tru’s custom doorlite programs and ViewLux’s geometric specialty lines round out our specification set for homeowners seeking non-rectangular glazing adjacent to entry systems or in hard-to-source configurations. Whether you have PGT, CGI, Therma-Tru, ViewLux, or any other make, we can measure the opening, verify the existing product’s specifications, and specify a replacement or new installation that meets the Haven Standard. Our free second opinion service applies to any written estimate you’ve received for custom or geometric work; bring us the competitor’s document and we’ll review the specification, the glazing, and the installation methodology at no charge.
Before
AfterSigns You Need Custom & Geometric Windows Right Now
- Visible daylight around a shaped or arched frame. Gaps between the window unit and the surrounding masonry or framing indicate that a stock rectangular replacement was forced into a non-rectangular opening, or that the original custom unit has warped beyond its seal. In Kendall’s climate, these gaps admit wind-driven rain that degrades the surrounding wall assembly within a single wet season.
- Condensation between panes on a geometric unit. Fogging inside an insulated glass unit means the edge seal has failed, and for custom shapes, the replacement IGU must be fabricated to the exact original coordinates. Delaying this replacement risks frame corrosion and interior finish damage that the written scope will document but that you’ll still have to repair.
- Cracked or delaminated impact glass in any non-rectangular opening. Impact-rated laminated glass that has suffered a stress fracture or interlayer separation has lost its design pressure rating and may no longer meet Florida Building Code requirements for your wind zone. This is particularly critical in Kendall, where the 2010 Florida Building Code and subsequent editions mandate impact protection for all new and replacement glazing.
- Difficulty operating or locking an oversized or curved unit. Hardware misalignment in large or irregularly shaped windows often indicates frame racking, foundation settlement, or improper original installation. The binding you feel is the mechanism compensating for stresses the frame was not designed to absorb, and continued operation will destroy both the hardware and the weatherstripping.
- Interior finish damage directly below any custom window. Water staining, drywall bubbling, or trim decay beneath a geometric or arched opening almost always traces to improper flashing integration at the curved head or angled sill. Standard flashing details don’t translate to non-standard shapes, and the repair requires both glazing replacement and proper water management detailing.
Our Custom & Geometric Windows Process - Step by Step
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Measured survey with documented coordinates. Our technician arrives with a digital laser distance meter, angle finder, and level to record every dimension of your opening: width at three points, height at three points, diagonals for squareness, radius for curves, and included angles for polygons. You keep this survey; it becomes the first page of your written quote and the fabrication template sent to the manufacturer.
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Performance specification and brand selection. We specify the glazing package, frame material, and manufacturer based on your opening’s exposure, your home’s architectural requirements, and your budget. For impact-rated custom work in Kendall, this means verifying the product’s Miami-Dade NOA, the design pressure for your specific address, and the U-factor and SHGC values that meet or exceed Florida Energy Code requirements.
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Written quote with fixed pricing. Haven Clause 1 requires that the measured survey and the written quote be the same document. The price we name accounts for fabrication, delivery, installation, permits, and the documented photo record. No change orders are permitted once this document is executed; the price is fixed.
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Permit application and fabrication. We pull the permit with the building department, submit the engineering and product approval documentation, and release the unit to fabrication. Lead times for custom geometric units typically range from 4 to 12 weeks depending on complexity and manufacturer backlog; we communicate the confirmed delivery date and schedule installation accordingly.
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Installation, inspection, and documentation. Our crew installs per the manufacturer’s published instructions and the Florida Building Code, with the permit inspector verifying compliance before we close the opening. You receive the documented photo record, the final invoice matching the written quote, and the 365-Day Done Right Promise stamped on the completed job. If it’s not done right, we make it right.
How Much Does Custom & Geometric Windows Cost in Kendall?
A typical geometric or shaped window installation in Kendall runs $2,800 to $5,200 for a standard custom impact unit in a common shape like a trapezoid or triangle up to 40 square feet. Arched and curved windows range from $3,500 to $6,800 depending on whether the radius requires true thermal bending or can be achieved with segmented construction. Oversized openings exceeding standard fabrication limits typically start at $5,500 and can reach $8,500 or more per opening when crane rental, structural reinforcement, and multi-point hardware are required.
Several factors move these ranges. Impact rating adds 30 to 50 percent over non-impact custom units, but is mandatory in Kendall’s high-velocity hurricane zone. Radius complexity, particularly for true curves versus segmented approximations, affects both material and labor. Interior or exterior trim repair, stucco patching, and finish carpentry to integrate the new unit with existing conditions are scoped separately if they’re outside the window replacement itself. Energy-efficient glazing upgrades, such as low-E coatings with argon fill, add $200 to $400 per unit but reduce cooling loads measurably in South Florida’s climate.
To avoid overpaying, obtain a written estimate that specifies the exact product by manufacturer and model number, the design pressure rating, and the installation methodology. Vague quotes with allowances or “pending field conditions” clauses are the primary source of cost escalation in custom window work. Our free second opinion service exists specifically to review competitor estimates for these ambiguities. Every Sightline quote includes the measured survey you keep, the fixed price, and the scope that governs the job. Call (786) 321-3319 for an exact quote; estimates are free.
Custom & Geometric Windows Near Kendall - Our Service Area
We install and replace custom and geometric windows throughout Kendall and the surrounding communities, typically scheduling measured surveys within two business days of contact. Our service area extends north to Custom & Geometric Windows in The Crossings, east to Custom & Geometric Windows in Pinecrest, and includes Palmetto Estates, Three Lakes, Glenvar Heights, Palmetto Bay, Olympia Heights, South Miami, Westchester, University Park, and South Miami Heights. Response times for installation vary by permit jurisdiction and fabrication lead time, but our live phone coverage is available 24/7 to confirm scheduling and answer specification questions.
Serving Kendall, FL - Our Local Coverage Area
We’re based in the Kendall 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 Kendall
Custom and geometric window installation is the process of measuring, fabricating, and installing windows in non-rectangular shapes, including arches, curves, triangles, trapezoids, and oversized configurations that exceed standard stock dimensions. In Kendall, this work must also satisfy Florida Building Code requirements for wind-borne debris protection, which limits the available manufacturers and glazing packages for impact-rated custom shapes. Sightline’s process begins with a measured survey using digital angle finders and laser distance meters, produces a written quote that matches that survey exactly, and ends with a documented photo record of the completed installation.
The installation of a custom or geometric window typically takes one to three days on site, but the total timeline from measured survey to completion ranges from 4 to 12 weeks due to fabrication lead times for non-stock shapes. Arched and curved units requiring thermal bending or custom aluminum extrusion tend toward the longer end of this range, while geometric shapes cut from standard profiles may fabricate more quickly. We communicate the confirmed delivery date at the time of quote acceptance and schedule installation accordingly, with no change to the fixed price if the timeline extends. Call (786) 321-3319 to discuss your specific opening and current lead times.
Custom and geometric window installation in Kendall typically ranges from $2,800 to $8,500 per opening depending on shape complexity, impact rating, size, and glazing specification. A standard custom impact trapezoid or triangle runs $2,800 to $5,200, arched and curved units range from $3,500 to $6,800, and oversized openings with crane requirements start at $5,500. Every Sightline quote is fixed; the measured survey you keep and the written price are the same document. Call (786) 321-3319 for an exact quote; estimates are free.
Yes, we specify, measure, and install custom and geometric units from PGT, CGI, Therma-Tru, and ViewLux, and we provide the same service for any other manufacturer whose products meet Miami-Dade NOA requirements for Kendall’s high-velocity hurricane zone. Our technicians carry the product-specific installation instructions and fastening schedules for each of these lines, and we verify the NOA certificate for every custom unit before it ships from the fabricator. If you have an existing custom window from any of these manufacturers that requires replacement or repair, we can identify the original specification and source the matching unit or equivalent.
We do not offer same-day installation for planned custom window replacement, as these jobs require measured survey, fabrication, and permit application that cannot be compressed into an emergency timeline. However, if a custom or geometric window has been damaged by storm impact, attempted break-in, or accidental collision, we can provide temporary weather protection and security boarding on short notice, then expedite the measured survey and fabrication process. For genuine emergencies involving broken glass or compromised security, call (786) 321-3319; our live phone coverage is available 24/7 to dispatch a technician for temporary stabilization.
Every custom and geometric window installation is covered by Sightline’s 365-Day Done Right Promise, written into the Haven Standard that has governed all 18,000+ installations since 2012. If the installation is not done right, we make it right within that period, with no deductible or service fee. Manufacturer warranties on the window unit itself vary by brand and product line, typically ranging from 10 years to lifetime on the frame and glass, and we register these warranties in your name at completion. The documented photo record we provide serves as the baseline condition for any warranty claim.
Clear access to the interior and exterior of the opening, remove window treatments and wall hangings adjacent to the unit, and gather any documentation you have about the existing window, including manufacturer labels, previous permits, or prior estimates. If the opening is on a second story or above, ensure our technician can access the exterior elevation safely; we carry ladders up to 28 feet, but steep pitches or restricted access may require special arrangements. The measured survey takes 30 to 60 minutes for a typical custom opening, and you keep the documented coordinates; the written quote follows within 24 hours. Call (786) 321-3319 to schedule your free estimate.
Schedule Your Custom & Geometric Windows Service in Kendall Today
Call (786) 321-3319 to schedule your free measured survey and written estimate for custom and geometric windows in Kendall. You’ll receive a documented coordinate set you keep, a fixed price that cannot change, and installation by background-checked, uniformed technicians under the Haven Standard. Live phone coverage is available 24/7.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Kendall since 2012.