Why "Cost Per Square Foot" Is the Wrong First Question
Almost every homeowner starts their siding search by asking for a price per square foot. It's a reasonable instinct, but it's the wrong first question, because siding replacement isn't really a materials purchase — it's a labor-intensive construction project that happens to end with a product on the wall. Two houses of identical size in the same Everett neighborhood can have estimates that differ by thousands of dollars, and the difference almost never comes down to the siding panels themselves.
What actually separates a $12,000 estimate from a $22,000 estimate on the same house is what's happening underneath the surface: how much of the old siding and sheathing has to come off, what condition the wall assembly is in once it's exposed, how complicated the roofline and trim details are, and how much moisture damage has been quietly accumulating behind the old cladding. Understanding those variables is the difference between comparing apples to apples and picking the lowest number on a page.

What Actually Drives the Price
Siding is one of the more labor-heavy trades in residential construction. Material is usually a smaller share of the total bid than most homeowners expect — the bulk of the cost is skilled labor: tear-off, carpentry repairs, flashing, house wrap, and precise installation of the new product to manufacturer spec. That labor share is exactly why installation quality matters more than which brand name is on the box.
| Cost Factor | Why It Moves the Price |
|---|---|
| Tear-off and disposal | Removing old siding down to the sheathing, hauling debris, and disposing of it responsibly |
| Sheathing and framing condition | Rot or soft sheathing found once the old siding is off requires repair before new siding can go on — this is the single biggest source of "surprise" costs |
| House complexity | Dormers, gables, bump-outs, and multiple roof pitches all add cutting, fitting, and flashing time |
| Trim and accessories | Corner boards, window and door trim, fascia, and soffit work are often quoted separately and easy to underestimate |
| Story height and access | Two- and three-story walls require more scaffolding, more safety setup, and slower work |
| Product line chosen | Basic panel versus lap siding with a factory finish and thicker profile changes both material and install labor |
| Moisture barrier upgrade | Adding or correcting house wrap and rainscreen detailing costs more up front and pays for itself in reduced callback risk |
How the Common Siding Products Compare on Cost and Value
Every siding product occupies a different spot on the cost-versus-longevity curve. None of them are "bad" products in isolation — they're built for different budgets and different expectations of maintenance. Here's the honest comparison we walk homeowners through.
| Product | Typical Upfront Cost | What You're Trading Off |
|---|---|---|
| Vinyl siding | Lowest | Cheapest to install, but it can warp in heat, crack in cold, and fades over time; repairs are visible because color-matching old vinyl is difficult |
| Engineered wood (LP SmartSide and similar) | Low to mid | Lighter and easier to install than fiber cement, but it's a wood-based product, so long-term moisture exposure and edge-sealing at cuts matter a great deal |
| Cedar / primed wood | Mid to high | Classic look, but real upkeep — repainting or restaining on a recurring cycle, and vulnerability to moisture and pests without diligent maintenance |
| Fiber cement (James Hardie) | Mid to high | Higher material cost, non-combustible, factory-cured color finish, and engineered for exposure — the trade-off is that installation must follow manufacturer spec closely to get the performance you're paying for |
We only install James Hardie fiber cement products. That's a deliberate standard, not a marketing line — we explain why in more detail elsewhere on this site, but the short version is that we've made the call that the long-term performance and factory finish are worth the higher upfront number, especially in a climate like ours.
The Snohomish County Climate Factor
Everett sits close enough to the water that salt-laden air is a real factor on exterior materials, and Snohomish County's long, wet stretch of the year means siding here spends months at a time damp, not just rained on once and dried out. Add in the moss season that comes with all that shade and moisture, and you've got a climate that's genuinely harder on cladding than a lot of the country realizes.
That combination — salt air, driving rain off Puget Sound, and moss that thrives wherever moisture lingers — is exactly why the underlying moisture management matters as much as the siding product itself. A product that handles a dry Eastern Washington summer without complaint can behave very differently after a decade of wet Everett winters. This is also why sheathing condition, house wrap, and flashing detail deserve as much attention in your estimate as the siding brand.
What This Means for Your Estimate
- Ask whether the bid includes house wrap or building paper replacement, not just siding
- Ask how the crew handles rainscreen gapping behind the new siding — it matters more here than in drier climates
- Ask what happens if rot is found once old siding comes off, and how that's priced
- Ask whether trim, flashing, and caulking at penetrations (vents, hose bibs, light fixtures) are included
- Ask about the finish — factory-applied finishes hold up to salt air and UV differently than field-applied paint
Why the Lowest Bid Is Often the Most Expensive Siding Job
The most common way a siding job goes over budget isn't a dishonest contractor — it's an incomplete estimate. A bid that looks 20-30% lower than the others usually got there by leaving something out: no allowance for rotten sheathing, no line item for trim, thinner or lower-grade material, or a crew that isn't factory-trained on the product they're installing. Homeowners rarely find out what was missing until the tear-off has already started and the "surprise" change order shows up.
A complete, honest estimate should read like a checklist you can verify against, not a single lump-sum number. If a contractor can't tell you what's included in tear-off, what happens if they find damage, and what warranty covers labor versus material, that's worth pausing on before you sign anything.
What a Legitimate Estimate Should Include
- A physical inspection of the current siding and, where possible, a look at sheathing condition
- A clear scope: tear-off, disposal, sheathing repair allowance, house wrap, trim, and siding installation as separate, itemized pieces
- The specific product line and profile being quoted — not just "fiber cement" or "vinyl" but the actual product
- Who provides the material warranty, who provides the labor warranty, and how long each runs
- A timeline that accounts for Everett's weather windows, since wet-season scheduling affects both cost and installation quality
Long-Term Cost: What Happens After Installation
The sticker price is only half the cost equation. The other half is what you spend over the next 15-30 years in maintenance, repainting, repairs, and eventual replacement. Vinyl rarely needs repainting but is hard to repair invisibly and has a shorter realistic service life. Wood-based and cedar products need a recurring maintenance budget — periodic painting, caulking, and vigilant moisture checks — that adds up over time, especially in a climate that stays damp as long as ours does. Fiber cement with a factory finish is designed to go longer between repaints, which is a meaningful saving when you count it over the life of the siding rather than just the year it goes up.
None of this means cheaper products are a mistake for every homeowner — budget, timeline, and how long you plan to stay in the home are all legitimate parts of the decision. It does mean the "cost" of siding replacement isn't really settled on installation day. It's settled over the following two or three decades.
Getting an Estimate You Can Actually Compare
The best way to avoid apples-to-oranges bidding is to ask every contractor you talk to the same specific questions: what's included in tear-off, what the sheathing repair allowance is, what product and profile is being quoted, and what the labor warranty covers. Once you're comparing complete, itemized scopes instead of single numbers, the real cost picture gets a lot clearer — and so does the value each option actually offers for a home in this climate.
If you'd like a straightforward, itemized estimate for your Everett home — one that spells out tear-off, any sheathing repair, and the specific James Hardie product being quoted — we're happy to walk your property with you and put it in writing. There's no pressure and no obligation, just a clear picture of what your project actually involves.
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