Double Hung Windows

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

Double hung windows give you the classic vertical-glide design Florida homeowners have trusted for generations, but built to handle what a West Palm Beach hurricane season actually throws at them. Both sashes move independently and tilt inward for easy cleaning, while laminated impact glass stands between your home and wind-driven debris. We install double hung impact windows across West Palm Beach, from El Cid to Northwood to the Las Colinas neighborhoods, and every installation follows AAMA 2400/2410 practice with HVHZ-compliant detailing. If you’re researching impact double hungs for a replacement or new build, call (561) 264-1279 and our team will walk you through pricing, lead times, and what fits your openings.

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Product Overview - Double Hung Windows

Double hung windows are the traditional profile homeowners picture when they think of a Florida home: two stacked sashes, one over the other, both sliding vertically. What separates an impact-rated double hung from what you’d find at a big-box store is the engineering inside the frame and the glass package that carries the rating.

These are classic vertical-glide impact windows with tilt-in sashes on both top and bottom. The tilt mechanism matters more than people realize. It means you can clean both sides of the glass from inside your house, which is a real advantage on second-story openings in older West Palm Beach homes where exterior access gets complicated.

The traditional profile fits naturally into the architectural language of this region. It reads correctly on 1920s Spanish Revival homes in Grandview Heights, mid-century ranch styles in Palm Beach Lakes, and newer construction in Northwood Hills. The straight lines and balanced proportions keep the curb appeal intact while the impact glass does the invisible work.

We offer these through our PGT, CGI, CWS, ES Windows, ECO, and Mr-Glass lines, which means you get choices on frame material, finish, glass package, and screen configuration. The right combination depends on your home’s exposure, your window openings, and how much energy performance you want baked into the product. We help you sort through it without turning the conversation into a sales pitch.

If you’re comparing double hungs against casements or fixed windows, the deciding factors usually come down to ventilation control and operational flexibility. Double hungs give you both sashes, which means you can open the top, the bottom, or both. That level of airflow control works beautifully in Florida’s shoulder seasons when the humidity drops and you want cross-ventilation through the house. Call (561) 264-1279 and we’ll help you think through what fits your home.

Technical Specifications

Here are the practical specs for our double hung impact windows, reworded from the manufacturer documentation so you can compare apples to apples.

• Frame materials: Aluminum or vinyl. Aluminum gives you a slimmer sightline and holds up well in coastal West Palm Beach exposure. Vinyl offers natural thermal performance and a softer interior finish that suits older homes.
• Glass options: Laminated impact glass with a PVB interlayer, low-E insulated glass, tinted glass, or clear glass. You can combine options, like laminated impact glass with a low-E coating for energy performance.
• Finish options: White, almond, bronze, black, and tan. These neutral tones cover the full range of exterior palettes you see in Palm Beach County.
• Screen options: Half screen or full screen, depending on whether you want the top sash screened, bottom sash screened, or both.
• Design pressure: Design pressures matched to your wind zone, up to +/-100, never higher. We don’t oversell ratings you don’t need, because the right DP for your opening is the one your wind zone calculation calls for.
• Compliance: Miami-Dade NOA and Florida Product Approval numbers available per configuration. Engineered to Florida Building Code (FBC) High-Velocity Hurricane Zone (HVHZ) requirements.

Hurricane & Compliance Performance

This is the section that matters most when you’re buying impact windows in West Palm Beach. Here’s what each performance element actually means for your home.

Laminated Impact Glass

The core of the system is laminated impact glass with a PVB (polyvinyl butyral) interlayer. That interlayer holds the glass in the frame under impact. Even if the outer pane shatters, the glass stays in place rather than turning into flying shards inside your living room. For a West Palm Beach home, that single feature is the difference between a broken window and a dangerous interior breach.

Miami-Dade NOA / Florida Product Approval

Each configuration carries Miami-Dade NOA (Notice of Acceptance) and Florida Product Approval numbers, issued per configuration. The specific numbers depend on the size, glass package, and frame material you select, and we verify them on your specific quote before you sign anything. This documentation is what your city or county building department looks for during permitting.

FBC/HVHZ Compliance

These windows are engineered to Florida Building Code (FBC) High-Velocity Hurricane Zone (HVHZ) requirements. HVHZ is the stricter standard that applies to West Palm Beach and most of coastal Palm Beach County. It’s not a marketing label. It’s a legal requirement for the permit package, and these products meet it.

TAS 201/202/203 Testing Context

HVHZ-rated products are tested under the protocol family that includes TAS 201 (large-missile impact), TAS 202 (cyclic wind-pressure loading), and TAS 203 (forced-entry resistance). The large-missile test fires a timber member at the glass to simulate wind-driven debris. The cyclic test pressurizes and depressurizes the assembly thousands of times to mimic a hurricane’s repeated wind loads. The forced-entry test verifies the locked window resists unauthorized entry attempts.

Design Pressure for Your Wind Zone

Design pressures are matched to your wind zone, up to +/-100, never higher. This matters because the DP rating on your window should match the engineering calculation for your specific structure, not whatever number sounds impressive in a brochure. Overselling a rating doesn’t make your home safer. It just means you paid for capacity you don’t need. We size the DP correctly the first time.

Energy Performance Options

Low-E and insulated glass options are available for energy performance. A low-E coating reflects heat back outward, which helps keep interior temperatures stable during West Palm Beach’s long cooling season. Insulated glass adds a second layer of air or gas between panes, further slowing heat transfer. These options work independently of the impact rating, so you can have full hurricane performance plus meaningful energy efficiency in the same window.

Color & Glass Options

Color selection in West Palm Beach tends to follow the architecture. White and almond remain the most common choices across Palm Beach County because they work with the bright stucco exteriors and Mediterranean tile roofs you see everywhere from the Villages of Palm Beach Lakes to the neighborhoods off South Olive Avenue. Bronze and black provide contrast on modern builds and coastal contemporary homes, especially along Flagler Drive. Tan sits nicely in the middle, bridging traditional stucco homes and neutral-toned exteriors without calling attention to the window line.

On the glass side, clear laminated impact glass is the functional baseline: full storm protection with no tinting, exactly what you’d expect a window to look like. Tinted glass cuts glare during West Palm Beach’s intense afternoon sun, which helps if you have west-facing windows that catch heat all day. Low-E insulated glass delivers thermal performance, reducing heat transfer through the glazing and helping the HVAC system work less to hold your set temperature. You can pair a low-E coating with tinted glass or keep it clean with a clear low-E laminate. The best package depends on your orientation, your shade conditions, and how much you care about energy performance versus a neutral exterior view. We’ll walk you through the trade-offs when we measure your openings.

Installation by TruePane Windows & Doors in West Palm Beach

An impact-rated window is only as good as the installation around it. That’s not fluff. The NOA and Florida Product Approval ratings assume the product is installed according to the manufacturer’s instructions and FBC/HVHZ requirements. A window set out of plumb or sealed improperly can compromise the entire assembly, and a window installed without the correct perimeter anchoring will not perform to its tested design pressure. This is one of the reasons we never recommend treating an impact window replacement like a handyman project.

Our process starts with a pre-installation inspection. We measure the rough opening, check the substrate we’re fastening into, and identify any water intrusion or rot issues before the new window goes in. In older West Palm Beach wood-frame homes, this step catches problems that would otherwise hide behind new trim for a decade. In concrete block and CBS construction common across the city, we verify the anchoring surface and choose the correct fasteners for the wall type.

We set every unit level, plumb, and square. We install following AAMA 2400/2410 practice, which covers the proper installation of windows in residential and light commercial structures. Around the perimeter, we use AAMA 812 low-expansion foam sealant to create a continuous air and moisture barrier between the frame and the rough opening. This step prevents the drafts and leaks that plague poorly installed replacements. After the window is set and sealed, we complete a final water test to confirm the perimeter is tight before we finish the trim work.

We handle the permitting details that come with HVHZ jurisdictions. West Palm Beach’s coastal exposure and wind zone mean most window replacements require a permit and a product approval submittal. We provide the NOA and Florida Product Approval documentation for your specific configuration, and we make sure the paperwork matches what’s physically installed. Cleanup happens the day of the install, not the day after. You should be able to walk through the room and see the difference immediately, not trip over a debris pile.

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, never higher. The specific DP for your windows depends on your home’s location, your building height, and the size of each opening. We calculate the correct rating for each window during the estimate, so you’re never buying capacity you don’t need or, worse, a window that doesn’t meet your local wind zone calculation.

What is the lead time for double hung windows in West Palm Beach?

Lead times fluctuate based on the manufacturer line you select, the glass package, and the finish color. Our PGT, CGI, CWS, ES Windows, ECO, and Mr-Glass lines each run on different production schedules. After we confirm your measurements and configurations, we’ll give you a written production timeline. Call (561) 264-1279 and we can give you current lead times based on what’s running through production now.

Do I need a Miami-Dade NOA or Florida Product Approval submittal for my permit?

Yes. West Palm Beach building permits for window replacement require the product approval documentation for the exact configuration being installed. We pull the Miami-Dade NOA and Florida Product Approval numbers for your specific sizes and glass packages, and we include those documents in your permit submittal. It’s part of our standard process, not an add-on you have to request.

Can I customize the size or configuration of my double hung windows?

Custom sizing depends on the manufacturer line and the design pressure your wind zone requires. Not every size is available at every DP rating, so we verify the exact configuration against the product approval before we order. If your opening doesn’t work in a double hung format at the required DP, we’ll tell you during the measurement, not after the windows have been fabricated.

How do I maintain the frame and the tilt-in sashes?

The tilt-in mechanism on both sashes lets you clean the glass surfaces from inside the house. For frame maintenance, a mild soap solution and a soft cloth keeps the aluminum or vinyl surfaces clean. Avoid abrasive cleaners and pressure washers near the window line. Rinse the tracks occasionally to clear sand and debris that accumulates in West Palm Beach’s coastal air. You don’t need to remove or disassemble any impact component for routine maintenance.

Get a Quote - Double Hung Windows in West Palm Beach

Double hung impact windows from TruePane Windows & Doors deliver the traditional look you want and the storm protection West Palm Beach requires. Every job gets a written quote with the exact configurations, finishes, and DP ratings you’re paying for, along with the NOA and Florida Product Approval documentation. Call (561) 264-1279 to schedule your free on-site measurement and start the conversation about your window replacement.

Written by the team at TruePane Windows & Doors, serving West Palm Beach, FL and surrounding Palm Beach County communities with impact window and door installations.