Lindholm Exteriors, a BBB-accredited A+ Florida Keys contractor, is a certified installer of WinDoor luxury aluminum impact windows and doors including the Legacy, Harmony, Overture lift-and-slide, and Sonata pivot door lines across Monroe County. Founded in 2001 and part of the MITER Brands portfolio, WinDoor is based in Orlando, Florida.
Every product’s approved by the American Architectural Manufacturers Association (AAMA), American Society for Testing and Materials (ASTM), and has a Miami-Dade Notice of Acceptance (NOA). Every system we install’s engineered to specifications for the exact opening it fills.
Why Florida Keys Homeowners Choose WinDoor
WinDoor’s at the top of the impact window and door market. The brand uses thermally broken aluminum framing with I-strut construction. That design allows bigger spans, slimmer sightlines, and stronger anchoring than standard impact products.
For Florida Keys waterfront homes, this matters because openings tend to be oversized. The view’s the reason that the home exists. WinDoor manufactures certified impact products in dimensions that other brands won’t quote. That’s the difference between a compromised design and the one that the architect drew.
WinDoor’s luxury positioning offers upgrades, custom colors, custom hardware finishes, and premium glass packages including the proprietary Triton Advanced Impact, lightweight, laminated glass. The brand offers oversized configurations that hold High-Velocity Hurricane Zone (HVHZ) certification at sizes most competitors max out below.
If your home’s in Islamorada, Key Largo, Ocean Reef, or anywhere else in the Keys where the brief’s “design first, engineer the protection behind it,” WinDoor’s the brand we reach for most often.
WinDoor Product Lines We Install
We carry the full WinDoor lineup. We also work directly with the factory on the custom sizing Keys homes typically require. Product lines we install most often are:
- Legacy series—Premium aluminum impact windows in casement, picture, horizontal roller, and architectural configurations
- Harmony series—Performance-grade aluminum impact windows for whole-home replacement projects
- Overture lift and slide doors—Large-span sliding doors with a flush-floor lift-and-lock mechanism for seamless indoor-outdoor transitions
- Sonata pivot doors—Oversized impact-rated pivot entry doors for modern waterfront homes
- Series 8100 sliding glass doors—High-performance impact sliders for residential and light commercial use
- Series 950 French doors—Impact-rated French doors with multipoint locking, suited to traditional Keys architecture
- Bifold doors—HVHZ-certified folding door systems for indoor-outdoor living spaces
- Estate entrance doors —Luxury impact-rated entry doors with custom glass and hardware options
Every product’s custom manufactured to spec. Custom colors and configurations are standard as are oversized openings that WinDoor calls “big sizes.” Beyond the AAMA, ASTM, and Miami-Dade NOA approvals noted above, WinDoor also carries Florida Product Approval, and every product’s engineered for the High-Velocity Hurricane Zone (HVHZ) that covers Monroe County.
WinDoor Installation by Lindholm Exteriors in the Florida Keys
WinDoor systems perform to spec only when installed to spec. The big-size capability, multipoint hardware, weathertight thresholds, and laminated glass interlayers all depend on installation tolerances. Less experienced crews regularly miss those tolerances.
We’ve installed windows and doors across Monroe County for 75 years. We know the demands of the brand. That means precise opening preparation, anchoring methods that respect the structural calculations WinDoor publishes, and the patience to seat oversized systems without compromising the seal.
We install WinDoor products on waterfront single-family homes, custom new builds, condo and high-rise renovations, and luxury historic restorations. Our work covers the entire Florida Keys, from Key Largo through Key West.
Every installation includes permit coordination through the appropriate Monroe County or municipal building department, on-site supervision, and a workmanship warranty that complements the WinDoor manufacturer warranty.
Lindholm Exteriors has achieved:
- A+ accreditation from the BBB
- Over 75 years of resolving every project to the homeowner’s satisfaction
- Florida Certified Roofing Contractor: License CCC 1328542
- Florida Certified Building Contractor: License CBC 1256399
- Member, National Roofing Contractors Association (NRCA)
- Certified installer for the Andersen product lines listed above
Get a Quote on WinDoor Windows and Doors for Your Florida Keys Home
Below are the questions Florida Keys homeowners ask us most often about WinDoor. If your question isn’t listed here, call us at 305-852-5730, and we’ll walk through it with you.
Is WinDoor sold in the Florida Keys?
Yes. Lindholm Exteriors is a certified WinDoor installer serving Monroe County. Every WinDoor product carries American Architectural Manufacturers Association (AAMA), American Society for Testing and Materials (ASTM), and Miami-Dade Notice of Acceptance (NOA) approvals along with Florida Product Approval for the High-Velocity Hurricane Zone (HVHZ) that covers the Keys. We install WinDoor Legacy, Harmony, Overture, and Sonata lines on projects from Key Largo through Key West.
What makes WinDoor different from PGT or other Florida impact brands?
WinDoor’s at the luxury tier of the impact window and door market. The brand uses thermally broken aluminum framing with I-strut construction, which allows larger openings, slimmer sightlines, and higher design pressure ratings than most competitors. WinDoor’s manufactured in Orlando, Florida and is part of the same MITER Brands portfolio as PGT. Where PGT covers the broadest range of standard residential configurations, WinDoor’s the brand we reach for on waterfront homes, custom architectural projects, and oversized openings other brands won’t quote.
What are WinDoor’s Legacy, Harmony, Overture, and Sonata product lines?
Legacy’s the premium aluminum impact window line, offered in casement, picture, horizontal roller, and architectural configurations. Harmony’s the performance-grade aluminum line for whole-home replacement projects. Overture’s the lift-and-slide door system, large-span sliding doors with a flush-floor lift-and-lock mechanism for seamless indoor-outdoor transitions. Sonata’s the oversized impact-rated pivot entry door, built for modern waterfront homes where the entry itself is a design statement.
What sizes will WinDoor manufacture that other brands won’t?
WinDoor specializes in oversized openings that the manufacturer calls “BIG” sizes. The brand’s I-strut aluminum construction and higher design pressure ratings allow certified impact products in dimensions most competitors max out below. For Keys waterfront homes with large glass walls, multislide door systems, or pivot doors over 8 feet tall, WinDoor’s often the only impact-rated brand that can produce the opening you want without breaking it into smaller units.
Get a Quote on WinDoor Windows and Doors for Your Florida Keys Home
WinDoor’s the brand for homeowners who refuse to compromise on the view, design, and storm protection. Lindholm Exteriors also installs other brands of hurricane impact windows and impact-rated exterior doors across the Florida Keys, and we’ll recommend the one that’s right for you.
Call us at 305-852-5730 or request your free estimate. Whether you’re replacing a single door or every window and door in your home, we’ll come out and walk through the project with you. We’ll help you pick the right product line for your home and budget. Your quote’s free, and there’s no obligation to move forward.