Double Hung Windows

Double Hung Windows in Palm Beach, FL | TruePane Windows & Doors

Double hung windows bring a classic, symmetrical look to Florida homes, and our impact-rated version does it without compromising storm protection. Both sashes slide vertically and tilt inward for easy cleaning, which matters when you’re dealing with salt air and pollen eight months out of the year in Palm Beach. We install these across PGT, CGI, CWS, ES Windows, ECO, and Mr-Glass product lines, so you get the profile you want with the Miami-Dade compliance your permit requires. TruePane Windows & Doors has spent years installing impact windows in Palm Beach, and we know which configurations actually hold up on coastal lots versus inland neighborhoods. Call (850) 801-5596 to talk through your project.

Call (850) 801-5596

What Is a Double Hung Window?

A double hung window has two operable sashes instead of one. The top sash slides down, the bottom sash slides up, and both tilt into the room so you can clean the exterior glass without a ladder. That two-sash design is why people choose this profile for bedrooms, living rooms, and any second-story opening where reaching the outside glass is a problem.

In hurricane-prone construction, the double hung profile gets a serious engineering upgrade. The sashes ride on reinforced vertical tracks, and the meeting rail where the two sashes lock receives extra hardware so the window can carry wind loads from both directions. We’re not selling a coastal look that happens to have impact glass in it. These are purpose-built HVHZ products, tested under TAS 201, TAS 202, and TAS 203 protocols, with laminated impact glass held in the frame by a PVB interlayer. TruePane Windows & Doors installs them in older Palm Beach neighborhoods where the traditional profile matters architecturally, as well as newer construction where buyers expect impact protection as standard.

Architecturally, double hungs fit Colonial, Key West, Mediterranean Revival, and mid-century ranch styles that are all over Palm Beach. They read more traditional than a horizontal roller and give you better ventilation control than a casement. In Florida, that matters because you’ll open the top sash on cool winter mornings and want the bottom sash closed tight against rain the rest of the year. Call (850) 801-5596 to talk through your project.

Technical Specifications

We order double hung windows from multiple manufacturers, so the exact dimensions and tolerances vary by line. Here’s what you have to work with across our PGT, CGI, CWS, ES Windows, ECO, and Mr-Glass configurations:

• Frame materials: Aluminum, Vinyl
• Glass options: Laminated Impact Glass (PVB Interlayer), Low-E Insulated Glass, Tinted Glass, Clear Glass
• Finish options: White, Almond, Bronze, Black, Tan
• Screen options: Half Screen, Full Screen
• Operation: Vertical sliding sashes, tilt-in on both top and bottom
• Design pressure: Matched to your wind zone, up to +/-100 - never higher
• Compliance: Miami-Dade NOA and Florida Product Approval numbers available per configuration

Because each configuration carries its own NOA number, we specify the exact product approval on your quote rather than listing a generic number that only applies to one size. That keeps your Palm Beach permit submittal accurate and your inspector happy.

Hurricane & Compliance Performance

Laminated Impact Glass
Each sash uses laminated impact glass with a PVB polyvinyl butyral interlayer. When debris hits, the outer pane may crack but the interlayer holds the glass in the frame rather than letting it shatter into the room. That’s the basic physics of impact protection, and it’s what the HVHZ codes require.

Miami-Dade NOA / FL Product Approval
Our double hung configurations carry Miami-Dade Notice of Acceptance and Florida Product Approval numbers. These are issued per configuration, not per product family, so the NOA on your specific quote is the one your municipality in Palm Beach will look for during permit review.

FBC / HVHZ Compliance
These windows are engineered to Florida Building Code High-Velocity Hurricane Zone requirements. HVHZ isn’t a marketing label; it’s a structural standard that changes how a window is framed, glazed, anchored, and tested. Palm Beach sits entirely within an HVHZ jurisdiction.

TAS 201, 202, 203 Testing Context
HVHZ-rated products get tested under a protocol family, not a single test. TAS 201 covers large-missile impact. TAS 202 covers cyclic wind-pressure loading, which simulates the repeated buffeting of a hurricane. TAS 203 covers forced-entry resistance, which matters for security whether or not a storm ever arrives.

Design Pressure for Your Wind Zone
A double hung window installed on a second-story villa near the Intracoastal in Palm Beach will carry a different design pressure than one installed on a ground-floor unit west of I-95. We match design pressure to your wind zone, up to +/-100, and never higher. Over-specifying wins nothing except a higher price.

Energy Performance Options
Low-E and insulated glass options are available for energy performance. If your HVAC load matters to you, we can spec Low-E insulated glass that reduces solar heat gain without changing the visual profile. This is particularly useful on west-facing elevations in Palm Beach that catch the afternoon sun.

Color & Glass Options

White is the most common double hung finish in Palm Beach because it works with nearly every coastal style, from 1950s concrete-block ranches to newer Key West-inspired construction. But white isn’t the only option that looks right. Almond and Tan read warmer and sit comfortably on Mediterranean-style homes with barrel tile roofs. Bronze and Black have become popular in the last five years on contemporary spec builds and renovated mid-century homes where contrast trim is part of the design language. The finish is a factory-applied coating on aluminum lines and extruded color on vinyl, so you’re not painting anything afterward.

For glass, clear laminated impact is the economical baseline. It protects against storms and meets code, and it’s what most builder-grade packages specify. Tinted glass steps up solar performance in rooms that get direct afternoon exposure, which describes most homes east of Dixie Highway in Palm Beach. Low-E insulated glass is the pick for energy performance, especially on large window walls or any elevation facing the water. Each glass option can be combined with either a half screen or a full screen, depending on whether you plan to run the window open much. Call (850) 801-5596 to talk through your project.

Installation by TruePane Windows & Doors in Palm Beach

Impact windows fail or pass inspection on the installation, not just the glass package. A double hung window carrying a Miami-Dade NOA still has to be installed correctly for that NOA to mean anything. We’ve replaced plenty of windows in Palm Beach that were rated for the wind zone but had shims missing, frame gaps, or a perimeter seal that failed after two seasons of salt exposure.

Our install process starts with a pre-install inspection of the rough opening. We check the existing framing for rot, especially on wood-framed homes built before the 1990s, and we look at whether the opening is square before we ever order the window. When the window arrives, we set it level, plumb, and square, then anchor it through the frame per the manufacturer’s tested fastening schedule. We seal the perimeter with AAMA 812 low-expansion foam sealant, which expands to fill the gap without bowing the frame, and install the exterior flashing per AAMA 2400/2410 standard practice. The finish work includes a water test on the exposed elevation and a final check that both sashes operate, tilt, and lock without binding.

Palm Beach brings specific challenges. Coastal exposure means more wind-driven rain and salt spray, so our flashing and sealant choices make a real difference. Permit submittal in Palm Beach County and its municipalities requires the right NOA numbers and product approval documentation, and we handle that as part of a full replacement scope. If you’re replacing windows in a condo, we coordinate with association requirements on finish color and profile matching. The point is straightforward: an impact window is a system, and the installation is part of the system. We install it so it performs the way the NOA says it will.

Frequently Asked Questions - Double Hung Windows

What wind zone / design pressure is the Double Hung Windows rated for?
Design pressure is matched to your specific wind zone, up to +/-100 DP, and never higher. Your wind zone depends on your exact address in Palm Beach, your structure’s height, and whether you’re within a coastal exposure. We spec the required DP when we measure, not before.

What is the lead time?
Lead times vary by manufacturer and line, but in our Palm Beach market you should plan on roughly four to eight weeks from final measurements to installation. Custom sizes and finishes can push that window. Call (850) 801-5596 for current production times on the PGT, CGI, CWS, ES Windows, ECO, or Mr-Glass line you’re considering.

Does it require a Miami-Dade NOA or Florida Product Approval submittal for my permit?
Yes. Palm Beach municipalities require product approval documentation as part of your window permit submittal, and the NOA or Florida Product Approval must match the exact configuration we install. We include those documents with your quote so you or your contractor can submit them with confidence.

Can I customize the size or configuration?
Manufacturer sizing grids cover most standard openings, and many lines allow custom widths and heights within tested limits. What matters is that the specific configuration carries its own NOA number. We verify that before we order. Ask for exact custom dimensions on your quote.

How do I maintain the frame?
Rinse aluminum and vinyl frames with freshwater every few months, especially if you’re within a few blocks of the ocean in Palm Beach. Salt residue etches aluminum coating over time. Clean the tracks with a dry brush, and don’t lubricate with oil-based products, which trap sand. The laminated impact glass itself cleans with standard glass cleaner. These are low-maintenance windows by design.

Get a Quote - Double Hung Windows in Palm Beach

We’ll measure, spec the exact configuration, and walk you through the NOA documentation your Palm Beach permit requires. Estimates are free, and you’ll get a written line-item quote with design pressure matched to your wind zone.

Call (850) 801-5596 to schedule your free on-site measurement in Palm Beach today.

Written by the team at TruePane Windows & Doors, installing impact windows and doors across Palm Beach, FL.