Window Installation in Key Largo - Free In-Home Measure, Written Price

Fast, Reliable Window Installation Across Key Largo

Window installation in Key Largo comes down to one non-negotiable fact: we live in a High Velocity Hurricane Zone, and every window you put in has to meet Miami-Dade NOA standards or the final inspection fails. We’ve been doing this work on the island long enough to know the difference between a bid that passes and one that gets torn out. TruePane Windows & Doors installs impact-rated windows that hold up to salt spray from both the Atlantic and Florida Bay, and we handle the permit paperwork so the inspection goes through the first time. Call (813) 320-9346 for a free estimate on your Key Largo home.

Call (813) 320-9346

Why TruePane Windows & Doors Is Key Largo’s Preferred Window Installation Company

We’re not the cheapest bid in Key Largo, and we won’t pretend to be. What we are is the company that shows up when we say, measures every rough opening twice, and registers both warranty layers in writing before our truck leaves your driveway. Dale Kessler started TruePane in 2008 after decades in the glazing trade, and his rule still governs every job: if the pane is not true, the job is not done.

Our windows hold up in Key Largo’s specific environment. Most installers don’t think about the fact that your house sits on a limestone island with saltwater on both sides. We do. The hardware we spec, the flashing tape we use, the frame material we recommend – all of it is chosen because it survives dual-corrosion exposure, not because it’s what the supply house had on the shelf. Our team knows the canal-front subdivisions like Ocean Isle Estates and Buccaneer Point, where those 1970s concrete block homes still carry their original corroded sliders. We’ve pulled enough of them out to know exactly what’s behind the drywall.

We answer the phone. A live person picks up 24 hours a day, seven days a week. Not a voicemail tree, not a regional call center. When you call about your Key Largo windows, you talk to someone who understands the island. Our technicians are background-checked, uniformed, and trained the way Dale trained his own apprentices – they work in your home like they would work in their own mother’s house.

Our Window Installation Services in Key Largo

Here’s a quick reference for what we install most on the island. Every unit is Miami-Dade NOA-certified for Window Installation in the HVHZ, and every rough opening gets inspected before the new window goes in.

Sliding Windows

Sliding windows are the workhorse of Key Largo homes, especially on canal-front properties where wide openings are the norm. A typical mid-range horizontal slider for a Key Largo home runs $700 to $1,400 per unit installed, depending on opening size and impact glazing. We install fusion-welded vinyl sliders with marine-grade hardware so the salt air doesn’t eat the rollers and locks within three years. On stilt homes, we check the jamb and rough opening height before we quote because many elevated floors settled enough to leave the old sash binding.

Casement Windows

Casement windows give you the best wind load performance per square foot, which is a real consideration when every installed unit in Key Largo has to meet HVHZ pressure ratings. Expect to pay $850 to $1,600 per casement window for a standard impact-rated unit with crank hardware, depending on size and frame choice. Because Key Largo is narrow enough that one side of your house faces the Atlantic and the other faces Florida Bay, we pay attention to which direction the window faces when we spec the glazing – the east exposure gets a different solar coating than the west.

Fixed & Picture Windows

Fixed and picture windows cost $600 to $1,200 per unit in Key Largo for standard sizes, and they’re one of the most common replacements on canal-front view walls. Most of these openings were too large for their original non-impact glazing, so meeting the HVHZ requirement means stepping up the glass thickness or adding an impact-rated laminated layer. We frame the new units to handle the additional weight and air pressure without sagging. When we install a picture window overlooking the water, we register the NOA number and pass it to you in writing because your insurer will want it.

Single & Double Hung

Single and double hung windows run $600 to $1,300 per unit in Key Largo for impact-rated models, depending on size and whether you need egress-compliant units. These are common on the inland concrete block homes along Ocean Bay Drive and the side streets off Card Sound Road. The issue we see most often is standard aluminum frames pitting from dual-salt exposure within a few years, so we quote fusion-welded vinyl or marine-grade aluminum and explain the price difference up front.

Trusted Brands We Service in Key Largo

We’re an authorized installer for more than a dozen manufacturer lines, and for Key Largo, the standouts are PGT, CGI, and Ply Gem. These brands offer Miami-Dade NOA-certified impact units that hold their pressure ratings through decades of salt exposure, which is exactly what the island demands. When you come to our office or we come to your home for an estimate, we put the quotes side by side on paper so you see the frame material, glazing spec, and warranty terms in writing. We don’t steer you toward a brand because we get a better margin – we show you the numbers and let you choose.

Common Window Installation Problems We See in Key Largo Homes

We’ve been on enough Key Largo roofs and balconies to identify the repeated failures. Here’s what we see most:

• Non-NOA windows that fail final inspection. A contractor quotes a standard window because it’s cheaper, installs it, and Monroe County flags it on the inspection. The homeowner eats a tear-out and a full replacement. We’ve walked through the permits enough times to know which products pass before we ever order one.
• Aluminum frame pitting and seal failure. Standard anodized aluminum, which would hold up fine in central Florida, starts pitting within two to three years on a Key Largo canal home because the air carries salt from the Atlantic on one side and Florida Bay on the other. Marine-grade hardware and fusion-welded frames are not upgrades here; they are the floor.
• Rotted or undersized jambs on stilt homes. The 1960s and 1970s wood-frame stilt houses throughout Key Largo’s canal subdivisions were built before anyone thought about HVHZ glazing requirements. Many have jamb frames that have absorbed decades of humidity and no longer hold a screw. If you mount a new impact window in a rotted jamb, the warranty is void and the window will work loose.
• Corroded sliders that no longer lock. In neighborhoods like Tarpon Basin and Stillwright Point, the original oversized aluminum sliding doors have corroded so badly that owners wedge a board in the track for “security.” That’s also the moment Monroe County requires a full permitted replacement with a NOA-certified unit, not a glass swap.

Pricing for Window Installation in Key Largo, FL

We Also Serve Cities Near Key Largo

Our crews handle Window Installation in Key Largo and the surrounding communities, including Tavernier, Homestead, Key Colony Beach, and Marathon. If you’re on Upper Matecumbe Key or a few miles down the Overseas Highway, we can schedule an estimate and pull the same Monroe County permits. Same standards, same warranty, same live person answering the phone.

FAQs - Window Installation in Key Largo