Double Hung Windows

Double Hung Windows in Miami, FL | Winslow Windows & Doors

Double hung windows give you the classic look of a traditional Florida home with the protection modern building codes demand. Both sashes glide vertically and tilt inward, so you can clean the glass from inside your house without ladders or special equipment. In Miami, where hurricane season is a fact of life, our double hung impact windows pair that timeless profile with laminated glass engineered to take a hit and stay in the frame. Winslow Windows & Doors installs these windows across Miami neighborhoods from Coconut Grove to Kendall, and we’ve spent years refining our installation process so the window performs exactly as its Miami-Dade NOA rating promises. Call (863) 862-5435 to talk through your project.

Call (863) 862-5435

Product Overview - Double Hung Windows

A double hung window is the most traditional operable window profile in American residential architecture. Two sashes sit stacked in a single frame, and both move independently. On our impact series, that means ventilation from the top, the bottom, or both at once. The sash locks at the meeting rail, and each sash tilts inward on pivots for cleaning. You don’t need to be outside to wash the exterior glass, which matters in Miami where second-story access means a ladder leaning against stucco or tile work.

What makes this window work in hurricane-prone construction is the laminated impact glass. Two panes of glass bond to a PVB interlayer, creating a single unit that resists puncture. When debris strikes, the glass may crack, but the interlayer holds the shards in place and keeps the building envelope sealed. That’s the core difference between a hurricane-rated window and a standard one, and it’s the reason Miami-Dade County requires labeled products in most residential replacement projects.

Architecturally, double hungs fit anywhere a traditional look matters. We install them in Coral Gables Mediterranean homes, mid-century ranches in Westchester, and newer construction in Doral. The frame is available in aluminum or vinyl, and the proportions read correctly on everything from a 1920s bungalow to a contemporary spec home. Winslow Windows & Doors supplies this product through our PGT, CGI, CWS, ES Windows, ECO, and Mr-Glass lines, so we can spec the right configuration for your wind zone and budget.

Technical Specifications

Here’s what you’re working with on the double hung impact series. Every configuration is verified against your specific wind zone before we quote it, because the design pressure requirement changes depending on where in Miami-Dade your home sits and how tall the building is.

• Frame materials: Aluminum or vinyl, both engineered for HVHZ applications
• Glass options: Laminated impact glass with PVB interlayer, Low-E insulated glass, tinted glass, clear glass
• Finish options: White, almond, bronze, black, and tan
• Screen options: Half screen or full screen
• Operation: Both sashes vertical-glide with tilt-in function on top and bottom
• Sill profiles: Sloped sill options for positive drainage on driving-rain exposures
• Design pressure: Matched to your wind zone, up to +/-100, never higher

Hurricane & Compliance Performance

Laminated Impact Glass - The glass in every double hung we install uses a PVB interlayer sandwiched between two panes. That interlayer is what holds the glass in the frame under impact. When a branch or piece of roof tile hits the window, the glass may spider, but it won’t blow out and let wind pressure into the house. That’s the entire point of the system, and it’s what Miami-Dade’s testing protocol is designed to verify.

Miami-Dade NOA / FL Product Approval Numbers - Every configuration of this window carries either a Miami-Dade Notice of Acceptance or a Florida Product Approval number, issued per configuration. That means you can pull a permit in any Miami-Dade municipality without a fight at the building department. We’ll list the exact NOA or FL number on your quote so your contractor or permit expeditor has it in hand. Verify the number on your specific quote, because it changes with size and glass package.

FBC / HVHZ Compliance - The product is engineered to Florida Building Code High-Velocity Hurricane Zone requirements. HVHZ is the strictest wind-borne debris region in the state, and Miami-Dade and Broward counties both fall under it. If you’re replacing windows in Miami, your existing openings are grandfathered in most cases, but the new product still needs to meet current code for the opening.

TAS 201 / 202 / 203 Testing Context - These are the three test protocols HVHZ-rated products run through. TAS 201 is the large-missile impact test, where a length of lumber gets fired at the glass. TAS 202 is cyclic wind-pressure loading, which simulates the push-pull of a hurricane’s gusts. TAS 203 covers forced-entry resistance. A product that passes all three earns its NOA. It’s worth understanding what those acronyms mean, because building officials and insurance inspectors ask about them.

Design Pressure for Your Wind Zone - Design pressure is a PSF rating that tells you how much wind load the window can resist, and it’s matched to your wind zone. Your home’s location determines what DP rating you need, and no one needs more than +/-100. We don’t oversell DP because paying for a higher rating than your zone requires is wasted money. We spec the window to your address, your structure’s height, and your exposure category.

Energy Performance - The laminated impact glass does the hurricane work. For thermal comfort, we offer Low-E insulated glass packages that cut heat gain through the glass, which matters in Miami where the sun is on your east and west elevations for hours every day. Tinted glass is another option for west-facing windows that bake in the afternoon. Clear laminated glass keeps the view open on shaded or north-facing walls.

Color & Glass Options

The finish choices on these double hungs map well to what you see across Miami architecture. White is the default on many split-level and ranch homes, and it holds up to sun exposure without looking dated. Almond and tan warm up a stucco exterior or a barrel-tile roof line, which is why we see them constantly in Kendall and The Hammocks. Bronze and black make a statement on modern farmhouse and contemporary builds, and they frame glass nicely on water-facing elevations in Key Biscayne or North Bay Village.

On the glass side, the choice comes down to exposure and priorities. Clear laminated is the most affordable and the most transparent. Tinted glass cuts glare and heat, and it’s a workhorse for west-facing bedrooms in Palmetto Bay. Low-E insulated glass is the upgrade path if you’re fighting heat gain and want better thermal performance without darkening the view. Your Winslow Windows & Doors estimator can walk you through the trade-offs based on which direction each opening faces.

Installation by Winslow Windows & Doors in Miami

A hurricane-rated window only performs to its rating if it’s installed correctly. The NOA and Florida Product Approval numbers on these double hungs assume a specific installation method, and a sloppy install voids that assumption. We don’t let that happen. Our crews install to AAMA 2400 and 2410 practice, which are the industry standards for window installation, and we set every unit level, plumb, and square before fastening.

The process starts with a pre-install inspection. We check the existing opening, look for water intrusion or framing damage, and verify the rough opening dimensions against the window we’re about to set. If there’s rot or termite damage in the opening, we flag it before we touch the window because a new impact window in a compromised opening is a problem waiting to happen. Once the window is set, we seal the perimeter with AAMA 812 low-expansion foam and finish with a proper exterior sealant detail that matches the look of your home.

Miami-specific conditions matter here. Coastal exposure zones get more wind-driven rain, so sill flashing and drainage are non-negotiable. If you’re in a historic district like Coral Gables or Miami Beach, the permitting process may require additional review, and we’ve worked with those boards often enough to know what gets approved. We pull our own permits on every job, and we don’t install anything that doesn’t have its paperwork ready. After installation, we run a final water test, walk you through how to operate and clean the tilt-in sashes, and we leave the job site clean. A double hung impact window is a long-term investment, and the install quality is what determines whether it still works correctly in a decade.

Frequently Asked Questions - Double Hung Windows

How do I maintain the frame? The frame needs very little maintenance. Wipe down the sashes and track with mild soap and water a couple times a year, and keep the weep holes in the sill clear so water drains the way it’s designed to. The tilt-in sashes let you clean the interior and exterior glass from inside the house, which is the main reason Miami homeowners love this profile.

What wind zone and design pressure is the Double Hung rated for? The design pressure is matched to your wind zone, up to +/-100, never higher. We determine that based on your address, the height of the structure, and the exposure category. Your quote will list the specific DP rating required for each opening, so you’re not paying for more than your location demands.

Does it require a Miami-Dade NOA or Florida Product Approval submittal for my permit? Yes. Every configuration of this double hung carries either a NOA or Florida Product Approval number, and your municipality will ask for it as part of the permit package. We pull our own permits and submit the applicable NOA or FL Approval number with the application. The specific number depends on the size, glass package, and frame material on your quote, so verify it on your specific quote before filing.

Can I customize the size or configuration? Yes, within the tested and approved ranges for each configuration. We order each double hung to the exact opening dimensions measured on site, not on a builder’s rough-in guess. Custom sizing, custom glass packages, and finish choices are all available, but every custom configuration still carries a NOA or FL Product Approval number. If a size or config falls outside the tested range, we won’t quote it, because it won’t pass a Miami-Dade inspection.

What is the lead time? Lead time depends on the manufacturer line, the size and glass package, and current production volume. Typical residential double hung orders run several weeks from order placement to arrival at our warehouse, and we schedule the installation date once the windows are physically in hand. Custom finishes or Low-E insulated glass can add time. Your sales rep gives you a real date range when we quote, not after you’ve signed.

Get a Quote - Double Hung Windows in Miami

If you’re replacing windows in a Miami home, double hung impact windows are a practical, code-compliant choice that preserves the look of the house you bought. We’ll measure your openings, spec the right design pressure for your wind zone, and give you a written quote with the NOA or Florida Product Approval numbers on it. Call (863) 862-5435 to schedule a free on-site measurement and start your project.

Written by the team at Winslow Windows & Doors, serving Miami, FL with hurricane-impact window and door installations.