Gentry vinyl
The official catalog lists Gentry 5400 vinyl windows and Gentry 5900 sliding doors as its higher-spec vinyl direction.
International Window Corporation windows and doors
Compare International Window Corporation windows and doors.
International Window Corporation has manufactured vinyl and aluminum windows and doors since 1957. Its current catalog spans replacement and new-construction window frames, sliding and hinged patio doors, thermally broken aluminum products, and technical resources for architects and installers.
Request a free estimateCurrent catalog position
Confirmed dealer brand; exact collections require consultation.
IWC is represented here as a confirmed dealer brand, not as one preselected mystery series. The useful next step is to identify the exact family that fits the wall condition and design goal, then verify the style, frame profile, glass, finish, dimensions, performance report, and warranty in the written proposal.
What the proposal should confirm
- Exact manufacturer, collection, and model
- Size, style, layout, operation, and handing
- Frame or jamb, sill, glass, finish, and hardware
- Opening-specific ratings and technical documents
- Installation, finish work, and written warranty
International Window Corporation in view
See the product direction before comparing the fine print.
These completed-project images illustrate the kinds of opening decisions an IWC proposal must resolve. They are not presented as photographs of identified IWC products.
Exact series confirmation
The brand is represented, but the collection still matters.
The current catalog confirms the manufacturer relationship and product families. It does not assign a specific IWC series to your opening before the wall condition, material direction, operation, glass, finish, and current dealer availability are reviewed.
Your estimate should name the exact series and product before you compare pricing or approve the order.
Products and collections
Understand the families before comparing options.
The collection determines much of the material, profile, size range, operation, finish, technical support, and performance capability. Product names below reflect the current manufacturer and dealer information available for this catalog.
Crown vinyl
Crown includes 5300 windows, patio and picture-door products, and a 5365 retrofit-window direction for replacement applications.
Lanai vinyl doors
Lanai includes hinged 5000/5100 and sliding 5600 door families for patio access and broader glass openings.
Ambassador aluminum
Ambassador 8200 uses IWC’s thermally broken ThermoTech aluminum design in window and sliding-door products.
Imperial aluminum
Imperial 6200 windows and 6800/6900 patio doors provide additional aluminum configurations and technical documentation.
What stands out
Reasons this manufacturer may belong on the shortlist.
These are product and documentation differences, not a universal claim that one brand is right for every opening.
Vinyl and aluminum under one manufacturer
IWC supports materially different frame directions, allowing the opening, sightline, thermal target, finish, and budget to lead the selection.
Replacement-frame choices
The official catalog documents retrofit and frame-profile directions intended for different wall and existing-frame conditions.
Technical document access
IWC publishes architectural specifications, drawings, performance matrices, installation instructions, and test reports for current product families.
How to choose
Move from brand preference to a buildable specification.
The sequence matters. Make the opening and performance decisions first, then finish the appearance and hardware.
Choose material and series together
Do not stop at vinyl versus aluminum. Require the exact family, profile, frame type, and operating style.
Match the frame to the wall
Retrofit, nail-on, and other frame conditions change demolition, flashing, trim, stucco, and interior finish scope.
Check the exact performance report
Thermal, air, water, and structural values vary by size, glass, style, and series. Use the report for the ordered configuration.
Confirm current Arizona availability
Color, glass, hardware, screen, and series availability should be confirmed through the current dealer catalog before design approval.
Manufacturer resources
Use current documents for the final decision.
IWC family names and construction directions are based on the manufacturer’s current product and technical-resource pages. The exact dealer quote and current manufacturer documents control.
International Window Corporation FAQs
Clarify the product before approving the options.
Does IWC make both vinyl and aluminum products?
Yes. Its current official catalog includes multiple vinyl and aluminum window and patio-door families.
Which IWC line is best for replacement windows?
That depends on the existing frame and wall condition, desired material, style, glass, and finish. Crown 5365 is presented as a retrofit direction, but the opening still needs field verification.
Is the Ambassador aluminum system thermally broken?
IWC describes Ambassador 8200 as using fully thermally broken ThermoTech aluminum extrusions. Confirm the exact ordered unit and performance report.
Start with a clearer plan
Compare International Window Corporation in the context of your home.
We will identify the exact collection, configuration, glass, finish, performance, and installation scope for the opening.