Exterior

A new deck averaged $8,318 in 2026. A wood deck recoups 94.9% at resale against composite at 88.5% — the best return in home improvement, and the opposite of the usual sales pitch.

The average window ran $517 installed in 2026 and $7,183 for a seven-window job. Material barely moves that number — insert versus full-frame moves it by thousands. Full line-item breakdown.

Averages $16,474 and returns about 80% — the cheapest square footage you can add. Cost by room type, and the four things missing from most quotes, starting with the sloped floor.

Fiber cement averages $14,893 installed and returns about 80% at resale — the best payback in home improvement. Cost by house size and style, plus the rotted-sheathing bill that is never on the quote.