Double Hung Windows

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

Double hung windows remain one of the most requested profiles we install across South Miami, and for good reason. They deliver a classic, symmetrical look that suits everything from 1950s ranch homes to new coastal construction, while the impact-rated versions give you the storm protection Florida code demands. Both sashes tilt inward for easy cleaning, and the vertical slide operation means no interior or exterior clearance issues. Winslow Windows & Doors supplies and installs impact double hung windows from PGT, CGI, CWS, ES Windows, ECO, and Mr-Glass, and we handle the full job from measurement to final inspection. If you’re comparing options for a home in South Miami, call (850) 930-1813 and we’ll walk you through pricing for your specific openings.

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Product Overview - Double Hung Windows

Double hung windows are the traditional two-sash design. Both the top and bottom sash slide vertically, and on the impact versions we carry, both sashes also tilt inward. That tilt feature matters more than most people expect: you can clean both glass surfaces from inside the house, which is a real advantage on second-story South Miami homes where exterior access is awkward.

For hurricane-prone construction, the profile itself has an advantage: the meeting rail where the two sashes overlap creates a natural interlock that, when engineered properly, resists wind pressure surprisingly well. The frames we install come in aluminum or vinyl, and each is built around laminated impact glass, not just impact-rated glass added to a standard frame. The lamination is the point. It’s what keeps the window protecting your home even after debris hits it.

Aesthetically, double hungs read as traditional. That’s why you see them on so many older South Miami neighborhoods, from Pinecrest to the historic streets around Sunset Drive. They don’t look like a storm product. They look like a normal window, which is exactly what most homeowners want.

Technical Specifications

Here’s a plain-language breakdown of what you’re actually choosing when you spec a double hung impact window for a South Miami project:

• Frame materials: Aluminum or vinyl. Aluminum suits a sharper, more modern sightline and is standard on many Miami-Dade high-rise and mid-rise buildings. Vinyl offers excellent thermal resistance and is popular for single-family homes.
• Glass options: Laminated impact glass with a PVB interlayer, Low-E insulated glass, tinted glass, or standard clear glass. You can combine Low-E with laminated impact glass for storm protection plus heat rejection.
• Finish colors: White, almond, bronze, black, and tan. These match the color palettes you see across South Miami’s stucco and wood-trim homes.
• Screen options: Half screen or full screen. The half screen covers the bottom sash opening only; the full screen covers the entire window opening.
• Sill options: Standard sloped sill, available in configurations that suit both elevated and slab-on-grade South Florida construction.

Exact size ranges vary by manufacturer line. Tell us your rough opening dimensions and we’ll confirm what’s achievable.

Hurricane & Compliance Performance

Laminated Impact Glass
Two panes of glass bonded to a polyvinyl butyral (PVB) interlayer. On impact, the glass may crack, but the PVB holds the broken pieces in the frame. The window stays sealed against wind, rain, and flying debris even after a hit. That’s the core protection mechanism in every impact double hung we sell in South Miami.

Miami-Dade NOA / Florida Product Approval
Every configuration we quote carries a Miami-Dade Notice of Acceptance or Florida Product Approval number. These are issued per configuration, meaning the exact frame, glass, and size you order must match an approved assembly. We verify the numbers on your specific quote before you commit, so your permit submittal goes through cleanly.

FBC / HVHZ Compliance
The windows are engineered to Florida Building Code High-Velocity Hurricane Zone requirements. HVHZ is the strictest wind code in the state, and South Miami falls squarely within it. We won’t quote a product that doesn’t meet the code for your specific address.

TAS 201 / 202 / 203 Testing Context
HVHZ-rated products are tested under a family of protocols: TAS 201 for large-missile impact, TAS 202 for cyclic wind-pressure loading, and TAS 203 for forced-entry resistance. Together these simulate what a hurricane actually does, repeated pressure cycling, not just a single gust. The double hungs we install have passed this protocol family in approved configurations.

Design Pressure Matched to Your Wind Zone
Design pressures are matched to your wind zone, up to +/‐100, never higher. This is a very specific point, and it matters: over-rating a window for an inland zone wastes your money. Under-rating one for coastal exposure is a code violation. We match the DP to where you actually live in South Miami, not to a generic “Miami rating” that may be wrong for your street.

Energy Performance Options
Low-E and insulated glass options are available on double hung configurations. Low-E coatings reduce solar heat gain, which matters in a South Miami summer. If your window openings face west or east, ask us about combining Low-E with tinted glass for the best balance of light and heat rejection.

Color & Glass Options

Color on impact windows is a design decision, not an afterthought. White and almond read classic and bright, and they dominate in South Miami’s older ranch and mid-century neighborhoods. Bronze and black create a modern, high-contrast frame that works well on renovated homes and new builds with darker trim or accent details. Tan sits between the two, a softer warm option that blends into natural and Mediterranean exterior palettes.

Glass selection follows a logic too. Clear laminated impact glass is the workhorse: maximum visible light, storm protection, no tint. Add Low-E when you want heat rejection without changing the look. Tinted glass steps in when glare or heat gain is a real problem, think west-facing bedrooms that bake every afternoon. Insulated glass with Low-E is the top choice for energy-conscious homeowners in South Miami, and yes, you can have insulated plus laminated for both thermal and impact performance in one assembly.

Installation by Winslow Windows & Doors in South Miami

An impact window is only as good as the opening it’s sitting in. The NOA or Florida Product Approval on your double hung window assumes a specific installation method. If the window goes in crooked, under-shimmed, or without the right perimeter seal, you don’t have an approved assembly anymore, even if the window itself carries the right stickers.

Our install process starts with a pre-install inspection of the opening. We check the rough opening dimensions, the condition of the surround, existing flashing, and signs of water intrusion from the old window. Then we set the frame level, plumb, and square, adjusting shims as needed. No window ever goes in “close enough.” We follow AAMA 2400/2410 practice for the setting and sealing work, and we use AAMA 812 low-expansion foam around the full perimeter to seal and insulate the gap. Then we flash the exterior to shed water down and out, not inward.

After the window is set and sealed, we do a final water test where feasible, then clean up the opening and haul off the old window and debris. In South Miami, we’re familiar with the permitting process for HVHZ jurisdictions. We know what the building department wants to see on the permit submittal, including the NOA or Florida Product Approval documentation for each opening, and we’ll help you make sure your paperwork matches your quote.

Coastal exposure changes install details. Homes within a few miles of Biscayne Bay face higher wind pressures and more salt-driven corrosion. Fastener choice, sealant selection, and flashing detail all shift. Our crews work in these conditions year-round, not once a season.

Frequently Asked Questions - Double Hung Windows

What wind zone or design pressure is the double hung window rated for?

The design pressure is matched to your wind zone, up to +/‐100. South Miami addresses fall into the HVHZ wind zone under FBC, but the specific DP requirement for your home depends on your exact location, building height, and exposure category. We confirm the required DP for your openings during the quote process and match the window to it precisely. Call (850) 930-1813 and we’ll check your address.

What is the lead time on double hung impact windows?

Lead time varies by manufacturer and configuration. Aluminum lines from PGT and CGI typically move faster than some specialty vinyl configurations, but specific glass packages and custom sizes can add weeks. When we quote your project, we’ll give you a realistic production window for the exact configuration you select. Then we’ll coordinate install around your schedule and the permit timeline.

Does the double hung window require a Miami-Dade NOA or Florida Product Approval submittal for my permit?

Yes. Miami-Dade and most South Miami-area building departments require the NOA or Florida Product Approval document to be submitted with your permit application for each window configuration being installed. We provide the documentation for the exact windows on your quote. If your permit reviewer flags a configuration, we’ll address it before you order, not after.

Can I customize the size or configuration?

Within the approved size range for each manufacturer, yes. Double hung impact windows are made to order, not stocked in a warehouse. You choose the width, height, frame material, color, glass package, and screen type. But every size and glass combination must match an approved configuration in the NOA or Florida Product Approval documentation. If the exact size you want falls outside the approved range, we’ll tell you upfront and help you adjust.

How do I maintain the frame and hardware?

Light maintenance is simple. Clean the frames with mild soap and water; avoid abrasive cleaners or solvents. Inspect the balance mechanisms once a year and make sure the tilt latches operate smoothly. On the laminated glass, use standard glass cleaner on the glass surfaces. Salt air in South Miami can accumulate on exposed aluminum over time, so a quick rinse every few months during dry season helps. If anything binds or sticks, call (850) 930-1813 before forcing the sash.

Get a Quote - Double Hung Windows in South Miami

If you’re ready to price impact double hung windows for your South Miami home, the next step is a measurement and a real quote. We’ll check your openings, match the window to your wind zone, and give you line-item pricing with the NOA documentation. Call (850) 930-1813 to schedule your free on-site measurement and project quote.

Written by the team at Winslow Windows & Doors, serving South Miami with hurricane-impact windows and doors.