What siding replacement actually costs
Most siding cost articles hand you a national per-square-foot range and stop there. That number does not tell you why your quote landed where it did. Here is what actually drives the price on your specific house, and where the money goes once a crew shows up.
Why a per-square-foot number misleads you
A generic per-square-foot figure blends a simple one-story ranch with a two-story house cut up with dormers, bump-outs and a dozen corners. Those are not the same job, and no single number describes both.
What actually moves the price is how many stories the crew is working at, how many corners and trim details the house has, whether there is rot to address once the old panels come off, and what material you picked. A simple single-story box can cost half what a cut-up two-story with wide overhangs costs, even at identical square footage.
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Where the money actually goes
Roughly speaking, a typical siding replacement splits four ways.
Labor and tear-off, around 45%. The biggest single line. Removing old panels, prepping the wall, and the trim work around windows and corners is where the hours go, and it is what separates a fast crew from a careful one.
Siding material, around 35%. Vinyl, fiber cement or engineered wood. This is the part everyone shops and compares, and it is rarely the part that fails first.
House wrap and trim, around 15%. The actual weather barrier, plus J-channel, corner posts and caulk. This is the cheapest place to do the job right and the most expensive place to cut a corner.
Disposal and permit, around 5%. A small line, but if a quote skips it entirely, ask why.
The line items that create surprise bills
Two things routinely turn a fixed quote into a higher final invoice.
Rot found at tear-off. Nobody knows what the sheathing looks like until the old panels are off the wall. A contractor who quotes a per-sheet replacement rate up front is telling you they expect to find something and have already priced it, rather than surprising you mid-job.
Trim and detail work. A house with more corners, more windows to trim out and more transitions between materials takes longer per square foot than a plain box, and a lot of quotes understate this until the crew is standing there.
How to compare two quotes fairly
Put them side by side and check four things: is a real house wrap specified or just reused, what is the per-sheet rot replacement rate, who pulls the permit, and what is the workmanship warranty.
If one quote comes in thousands lower, the answer is almost always somewhere in that list. A cheap quote is usually cheap because of what it left out, not because someone found an efficiency the other contractor missed.
Common questions
Is the most expensive siding material always the best choice?
No. Past a certain point you are paying for lifespan and low maintenance rather than better weather protection today. What actually keeps water out is the house wrap and the flashing details, and those cost the same regardless of which panel you put over them.
Does new siding pay for itself when I sell?
Partially. New siding recovers a meaningful share of its cost at resale and does a lot to remove a buyer's excuse to negotiate down, but it is not a dollar-for-dollar return. Replace it because the old siding is failing, not purely as an investment.
Should I pay a deposit up front?
A deposit is normal. A third of the total is a common ceiling — enough to cover ordering material and mobilizing the crew. Being asked for half or more before work starts is a reason to slow down.
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