House wrap and flashing — invisible but the whole reason siding lasts
Siding sheds bulk water. The water-resistive barrier (WRB) — house wrap like Tyvek, Vapro Shield, or Henry Blueskin — is what stops wind-driven water that gets behind siding from reaching the sheathing. Re-using the existing WRB under new siding (a common shortcut) is how a $30,000 siding job leads to a $20,000 sheathing-rot repair five years later.
Flashing is the other half: step flashing at roof-to-wall intersections, kick-out flashing where the roof terminates, head flashing over windows and doors, and proper integration of the WRB over and around all of it. Cheap installs nail siding right over old or missing flashing. Demand a flashing-and-WRB walkthrough between tear-off and new-siding install — phone photos minimum, mid-job inspection ideal.
See also: Roof Replacement Cost — $4–$15 per sqft of roof. Often paired with siding for a full envelope refresh.
Vinyl vs fiber-cement vs engineered wood — what each is actually for
Vinyl at $4–$10/sqft installed is the cost-leader. Modern insulated vinyl reads better than 1990s vinyl and is the right call on rentals, modest neighborhoods, and budget-conscious resale-prep. Downsides: heat sensitivity (warps near south-facing dark roof reflections), impact damage, less premium look in higher-end markets.
Fiber-cement (James Hardie) at $10–$15/sqft is the volume sweet spot for owner-occupied suburban homes. 30+ year material life, fire-resistant, holds paint well, available in lap and panel profiles. Downsides: heavier (slower install), needs precise flashing integration, brittle on impact.
Engineered wood (LP SmartSide) at $11–$14/sqft splits the difference — easier to install than fiber-cement, real-wood look, requires factory finish or careful field paint to maintain warranty. Stone or brick veneer at $20+/sqft is reserved for accent walls or higher-end markets where the premium reads on resale.
Wall area ≠ home footprint — measure correctly or you under-budget
Siding is priced per square foot of wall surface, not home footprint. A 2,000-sqft single-story home with 9-foot walls has roughly 1,800–2,000 sqft of exterior wall. A two-story 2,000-sqft home has closer to 2,400–3,000 sqft of wall depending on layout. Bay windows, chimneys, dormers, and gable ends all add wall area without adding home footprint.
Get the wall area from a satellite measurement service (EagleView/Hover) or a manual measurement, not from the home's assessed sqft. The calculator above takes wall area — put the right number in, especially on multi-story or complex-roofline homes.
Compare: Full Home Remodel Cost — $80–$350 per sqft when siding is part of a whole-home renovation.
Color and factory-finish premium pays back in maintenance years
Factory-finished fiber-cement adds about 15% to material cost but extends the repaint cycle from 10–12 years (field-painted) to 18–20 years (factory-finished). On a $28,600 standard install, that's roughly $4,300 of premium up-front in exchange for skipping a $6,000–$10,000 repaint event a decade later.
For owner-occupied homes you plan to keep 10+ years, factory-finish is almost always the right call. For flips or sale-prep within 5 years, field-paint is fine — the next owner inherits the repaint cycle.
Where regional multipliers and labor markets move the same job
A 2,200 sqft fiber-cement re-side at the East South Central multiplier (0.88×) is about $25,000 base. The same job on the Pacific (1.22×) is $35,000 base, $40,000 with contingency. Siding labor is more multiplier-sensitive than roofing because experienced fiber-cement crews are scarcer in higher-cost markets and demand higher day rates. Schedule outside peak storm-season months for 8–12% labor savings.