Straight answers on cost, energy efficiency and knowing when it is time to replace.
For most homes in a hot, humid climate, vinyl wins on price and fiberglass wins on strength and lifespan. This Old House’s 2025 survey of 1,000 homeowners found vinyl averaged $558 per window and fiberglass $651. It also puts vinyl’s typical life…
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To measure for a replacement window, you take three width readings and three height readings inside the existing frame, keep the smallest…
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The answer comes in two parts. The installation itself is usually the short part: Andersen says a full-frame replacement window on the…
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A professional window installation follows the same basic path on most homes: measure, order, prepare the house, remove the old window, prepare…
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The difference comes down to one strip of material: the nailing fin. A new construction window has a flange around its frame…
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Full frame window replacement means taking the old window out completely, frame and all, down to the studs, and installing a new…
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A retrofit window is a new window built to fit inside your existing window frame. The installer removes the old sashes and…
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A window’s design pressure rating, or DP, tells you how much wind load it’s rated to carry, in pounds per square foot.…
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Impact windows and hurricane shutters both protect a window opening from wind-driven debris. The difference is effort: impact windows are always on,…
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Laminated glass is two or more panes bonded together with a plastic interlayer, so when the glass breaks, the pieces stick to…
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