Windows for Your Siding Project

Window work within a siding project

We don’t offer standalone window replacement. Window or door work must be part of a larger James Hardie siding project and needed to complete the trim, flashing and seals around openings.

Windows do a lot more than most homeowners realize. They affect how your home looks, how it feels inside, how much energy it uses, and how well it holds up during storms. A well-chosen window upgrade can improve everyday comfort and function as well as the appearance of your home.

Window styles, materials and performance vary. We’ll help you understand those differences and how they fit your home and the goals of the project.

How windows open

Starting with window styles, this mostly comes down to how the window operates and where it’s being used.

Single Hung windows have a fixed top sash and a bottom sash that moves up and down. They’re simple, reliable, and one of the more common options.

Double Hung windows allow both the top and bottom sashes to move. They’re easier to clean and give more flexibility with airflow, which is why a lot of homeowners prefer them.

Casement windows open outward like a door using a crank. These seal tightly when closed and are great for airflow when open, especially in areas where you want to catch a breeze.

Fixed windows don’t open at all. They’re used where you want light and visibility without ventilation, like large front-facing windows or accent areas.

Horizontal sliders move side to side and are common in tighter spaces or areas where a window can’t open outward. Larger versions, like three-panel sliders, are often used along the back of the home to open up views and connect indoor and outdoor spaces.

Frame materials and storm protection

Once you understand the style, the next step is material.

Vinyl windows are a common option. They’re cost-effective, low maintenance, and perform well in most situations.

From there, you get into the difference between impact and non-impact windows. Impact-rated windows are designed with reinforced frames and laminated glass to handle high wind pressure and flying debris. In coastal areas, they’re a strong option for storm protection and can replace shutters at those openings when the approved window and installation meet the applicable code requirements. Non-impact windows can be more budget-friendly, but they do not provide debris-impact protection on their own and may require approved shutters or panels where opening protection is required.

Fiberglass is another window-frame material. Its frames offer strength and dimensional stability, especially with temperature changes, though long-term performance depends on the product. They’re a premium option, but for some homeowners, the durability and cleaner finish are worth it.

Understanding performance ratings

Performance is another piece that matters, especially in Florida.

U-factor measures how readily heat passes through the whole window, including its glass and frame. The lower the number, the better it insulates.

Solar Heat Gain Coefficient, or SHGC, measures how much of the sun’s heat enters through the window. Lower numbers mean less heat coming into the home, which helps keep interiors cooler.

Glass tint options can also reduce glare and heat while still allowing natural light in. On some beachfront properties, turtle-friendly glass is required under applicable local rules to reduce interior light reaching sea turtle nesting beaches.

All of these factors work together to determine how comfortable your home feels and how hard your HVAC system has to work.

Installation and design

Installation is just as important as the window itself. If a window isn’t properly sealed, flashed, and integrated into the wall system, it can lead to leaks and long-term issues. We take the time to make sure each opening is properly prepared, sealed, and finished so the window performs the way it’s supposed to.

From a design standpoint, windows also play a big role in the overall look of the home. Frame color, grid patterns, and sizing all affect how the exterior comes together. Those choices help the windows feel like part of the home’s overall design.

Choosing windows comes down to balancing budget, performance, and appearance. The goal is to install something that looks right, works well in the climate, and doesn’t need to be revisited anytime soon.

Reading the manufacturer’s window guidance

Want to compare the options before we talk? PGT’s window style selector and glass guide are useful examples of manufacturer information on window operation, impact protection and energy performance. They do not mean every project uses the same brand or series. We’ll confirm the exact unit and its ratings for the openings in your siding project.

Warranty and care requirements depend on the selected window. PGT’s manufacturer FAQs provide a starting point, and we’ll check the written terms for the actual product before making a warranty claim. Window work remains limited to a larger James Hardie siding project where it is needed for the opening trim, flashing and seals.