When considering a window upgrade, homeowners typically choose between replacement windows and new‑construction (or “full‑frame”) windows. Each option has advantages and is suited to particular circumstances. Replacement windows are designed to fit inside existing window frames. Installers remove the sashes and hardware of the old window, but leave the outer frame in place. They then slip in a new window unit and secure it to the existing frame. This approach is less disruptive, preserves interior and exterior finishes, and is generally more affordable. It’s ideal when the existing frames are still structurally sound and square.
New Construction Windows
New‑construction windows, by contrast, include a nailing flange or brickmold that attaches directly to the wall studs. Installing them requires removing exterior siding or stucco and sometimes interior trim, allowing installers to assess and repair the rough opening. Because the new frame is anchored directly to the structure, these windows can provide better weather sealing and may accommodate larger sizes or different styles than the originals. New construction is often chosen during major renovations or when there is significant rot or damage around the existing window openings. In hurricane zones, using new‑construction impact windows can ensure that the entire opening, not just the glass unit, meets current code requirements.
Cost & Installation
Cost considerations extend beyond the windows themselves. Replacement windows usually involve lower labor costs and minimal repairs to surrounding finishes. However, if the existing frame is warped, rotted, or poorly insulated, leaving it in place may compromise the performance of the new unit. In contrast, new‑construction installation allows homeowners to add flashing, insulation, and waterproof membranes around the opening, which can improve energy efficiency and reduce the risk of leaks. The upfront cost is higher due to additional labor and materials, but the long‑term performance may be superior.
In Florida, both replacement and new‑construction windows can be purchased with impact‑rated laminated glass and reinforced frames. The choice often depends on the budget, the condition of the existing openings, and the desired end result. Consulting a professional who understands local codes and best practices can help homeowners choose the right solution. Whether replacing or rebuilding, proper installation is critical to ensuring windows perform well during storms, conserve energy, and enhance the home’s appearance.
