Hardie vs LP SmartSide vs Vinyl: Which Siding Wins

What each costs installed

Published 2026 market data puts vinyl at roughly $3 to $12 per square foot installed, with most jobs at the lower end. Fiber cement runs about $7 to $18 per square foot, averaging near $12.50. Engineered wood is the one that trips people up: the raw material is only about $2 to $5 per square foot, but it needs priming and painting on site, which adds roughly $2 to $4 more.

That last point is the single most common misunderstanding in a siding quote. An engineered-wood price that looks dramatically cheaper than fiber cement is usually a price with the finishing left out.

How each behaves in a New England winter

This is where the comparison stops being about price. Our climate does something specific to siding: water gets behind it in November, freezes in January, expands, and pushes. Everything else follows from that.

• Fiber cement does not absorb water and does not rot or feed insects. It is heavy and brittle before it is fastened, and cutting it produces silica dust that has to be handled properly — part of why installation costs more than the material alone suggests.
• Engineered wood is lighter, easier to work, and takes an impact better than fiber cement. It is still a wood product with a resin binder, so the paint film is what keeps water out. A failed paint film matters more here than it does on fiber cement.
• Vinyl is unaffected by water entirely. It expands and contracts substantially with temperature, which is exactly why it must be hung loose rather than nailed tight. The most common vinyl failure in this region is installer error, not the material.
• Cedar looks the best and asks the most. Plan on refinishing exposed elevations on a cycle, and expect south and west faces to need attention first — that is normal, not a defect.

The part of the quote that actually decides it

Twenty years on, the wall assembly is what determines whether siding performed — not the brand on the front of it. Ask every contractor the same four questions and quotes become comparable regardless of material.

• What house wrap, and is it taped? A drainage plane behind the siding is what lets incidental water get back out instead of sitting in the sheathing.
• What is the flashing detail at windows, doors and the bottom of the wall? Nearly every leak begins at one of those three.
• What is the per-sheet rate if rotten sheathing is found, and who authorises it? Agreed before work starts, not discovered mid-job.
• Fastener schedule and expansion gaps. On vinyl especially, nailing tight is what causes buckling two summers later.

So which one

If budget is the binding constraint and the house is not a period property, vinyl installed properly is a genuinely good answer here and always has been. If you want the longest-lived, lowest-worry exterior and can carry the cost, fiber cement is what most people mean when they say Hardie. If you want a painted wood look with better impact resistance and are comfortable repainting on a cycle, engineered wood sits between them.

What I would not do is choose on brand alone. A premium panel over untaped wrap with no flashing will fail before a mid-range panel installed correctly — and the signs of siding that is already failing look identical either way.

For whole-house numbers rather than per square foot, see what siding replacement costs in Massachusetts, or the narrower vinyl versus fiber cement comparison. We install and replace siding across MetroWest, Greater Boston and Southern New Hampshire — see our siding service.