Custer Why "How Much Does Siding Cost" Doesn't Have a One-Line Answer
Every homeowner in Custer or anywhere else in Whatcom County asks the same question first: what's this going to cost? It's a fair question, and it deserves an honest answer instead of a made-up number pulled from a national average that has nothing to do with your house. Siding replacement pricing depends on the size and shape of your home, what's underneath the siding right now, the product you choose, how much prep and repair work is needed, and who's doing the installation. Two houses of similar square footage on the same street can land at very different price points once you account for these factors.
This page won't give you a fake per-square-foot number and call it a day. Instead, it walks through the real cost drivers so you can understand what you're actually paying for — and why the cheapest bid isn't always the cheapest project once you factor in how long the work has to last through our local weather.
The Big Cost Drivers, One at a Time
1. Material Choice
Siding materials range widely in upfront cost, and upfront cost is only half the story. Vinyl is typically the least expensive material to buy and install. Fiber cement, including James Hardie products, costs more upfront than vinyl but less than many premium options, and it's priced based on the product line, profile, and factory finish you select. Wood products like cedar or primed spruce can vary enormously depending on grade and finish. Engineered wood products such as LP SmartSide sit in a similar price range to fiber cement in many cases, though pricing shifts with market conditions.
The point isn't that one material is universally "cheapest" — it's that material cost has to be weighed against how long the product lasts, how much maintenance it demands, and what happens to your investment if something goes wrong with moisture, impact, or UV exposure over the next 20-30 years.
2. What's Underneath the Old Siding
This is the variable that catches homeowners off guard. Once the old siding comes off, we sometimes find water damage, rotted sheathing, compromised house wrap, or framing that needs attention before new siding can go on. In a climate like ours — with driving rain off the Strait of Georgia and a long, damp moss season — moisture intrusion behind old or poorly installed siding is common, especially around windows, trim, and anywhere flashing was cut corners on the first time around. A house that's been well-maintained might need little more than new house wrap. A house with a history of leaks might need sheathing repair or replacement. You won't know for certain until the old siding is off, which is why a wide cost range in an initial estimate is normal, not a bait-and-switch.
3. Home Size, Shape, and Story Count
More square footage means more material and labor, obviously. But shape matters just as much as size. A simple rectangular ranch is faster and cheaper to side than a home with lots of dormers, gables, bump-outs, and roof-to-wall intersections. Two-story and three-story homes require more scaffolding or lift equipment, which adds labor cost. Complex trim details — window casings, corner boards, fascia — add labor time regardless of the material chosen.
4. Removal and Disposal
Tearing off old siding, hauling it away, and disposing of it properly is real labor and real dump fees, and it should be a line item in any honest bid. Some contractors try to install new siding over old siding to skip this step. That can save money short-term, but it traps moisture and hides the condition of the wall behind two layers instead of one — not something we'll do.
5. Labor and Installation Quality
Correct installation is where a lot of the long-term value of any siding project actually lives. Proper flashing details, correct fastener spacing and type, correct clearances at grade and roof lines, and correct house wrap integration matter more to how the siding performs over the next few decades than almost anything else. This is especially true for fiber cement, where manufacturer installation instructions are specific and matter for both performance and warranty coverage. Labor cost varies by crew experience and by how much time correct installation takes on your specific home — and it's not the place to cut corners.
Typical Cost Ranges — Read the Caveats First
The ranges below are broad and meant only to give you a general sense of relative cost between materials. They are not a quote for your home. Your actual number depends on everything above — condition of the substrate, home complexity, and current material and labor pricing at the time of your project.
| Material | Relative Material Cost | Typical Lifespan Range | Ongoing Maintenance |
|---|---|---|---|
| Vinyl siding | Lower | Shorter — fades, cracks, warps with age and impact | Low, but limited repair options once discontinued colors fade unevenly |
| Primed spruce / cedar | Moderate to high (cedar) | Varies widely with maintenance and exposure | High — repainting, caulking, and moisture vigilance required regularly |
| Engineered wood (e.g. LP SmartSide) | Moderate | Long if edges and cuts stay sealed and dry | Moderate — edge sealing and moisture management are ongoing |
| Fiber cement (James Hardie) | Moderate to higher | Long — engineered for regional climate exposure | Low — factory finish holds color, non-combustible, dimensionally stable |
Fiber cement, and James Hardie specifically, tends to land in the middle-to-upper range on material cost but the lowest range on lifetime maintenance cost. That combination is why it's the only product this company installs — we'll explain the reasoning in more detail below.
Why We Standardized on James Hardie
We used to get asked to install vinyl, engineered wood, and primed wood siding regularly. We stopped offering those options — not because they're bad products in every application, but because after years of doing this work in Whatcom County's climate, we didn't want to keep standing behind installations we knew had real, predictable failure points here specifically.
Vinyl expands and contracts with temperature swings and can crack on hard impact; it also isn't fire-resistant. Wood and engineered wood products depend heavily on caulking, painting, and edge-sealing discipline being maintained for decades — miss a few maintenance cycles in a wet climate and moisture finds a way in through cut edges and seams. James Hardie fiber cement is non-combustible, doesn't expand and contract the way vinyl does, and its ColorPlus factory finish is baked on under controlled conditions rather than field-painted, which means better color consistency and fade resistance over time. Hardie also engineers specific product lines (HZ5, for example) for regions with more moisture exposure, which lines up with what a Custer roofline actually deals with through the wet season.
None of this means other products are junk. It means that when we weigh upfront cost against installation sensitivity, long-term maintenance burden, and how a product holds up specifically in our salt air, driving rain, and moss-prone climate, Hardie is the product we're willing to put our name behind. That's a business decision built on what we've seen perform, not a knock on every other siding manufacturer.
How Whatcom County's Climate Factors Into the Cost Equation
Homes near Custer and along the Whatcom County coastline deal with a specific combination of stressors: salt-laden air off the water, frequent wind-driven rain that pushes moisture sideways into wall assemblies rather than just down, and a long moss and algae season thanks to persistent shade and dampness much of the year. None of these factors change the sticker price of a siding job directly, but they change what "cheap now" ends up costing later.
A siding product or installation method that's marginal in a dry climate can fail outright here. Caulk joints that would hold for 10 years in a drier region may need attention sooner. Fasteners and trim details that aren't fully weathertight let in moisture that a moss-and-mildew-friendly climate doesn't dry out quickly. This is part of why we treat flashing, house wrap integration, and clearances as non-negotiable line items rather than optional upgrades — skipping them doesn't show up as a problem on day one, it shows up as a rot or moisture claim in year five or ten.
Hidden Costs Worth Asking About Up Front
A lot of homeowner frustration with siding projects comes from costs that weren't discussed clearly at the estimate stage. Ask any contractor bidding your project how they handle each of these:
- Substrate repair: How is rotted sheathing or framing priced if it's found during tear-off?
- Permits: Is the local permit fee included in the bid or billed separately?
- Window and door trim: Is trim replacement or wrapping included, or is it an add-on?
- Disposal: Is haul-away and dump fee included in the price?
- Paint-grade vs. factory finish: If the material requires field painting, is that priced into the bid or separate?
- Warranty labor coverage: If a material defect shows up in year 8, who pays the labor to fix it?
A contractor who can answer these clearly, in writing, before work starts is showing you how they run a job. One who waves off the question or gives vague answers is telling you something too.
A Practical Checklist Before You Get Bids
- Walk your own exterior and note any soft spots, visible cracking, staining, or moss buildup near seams and trim
- Ask each contractor for their material and labor breakdown, not just a single lump-sum number
- Confirm whether the bid includes tear-off, disposal, house wrap, and trim work, or treats them as extras
- Ask what happens if rotted sheathing is discovered mid-project, and get that answer in writing
- Ask about manufacturer warranty terms and whether labor is covered, not just materials
- Check that the contractor is licensed and insured for exterior work in Washington State
- Ask how they detail flashing and moisture management around windows and rooflines specifically
Financing the Project Without Overpaying
Siding replacement is a significant expense, and it's reasonable to want to spread that cost out. If you're comparing financing options, pay attention to the total cost over the life of the loan, not just the monthly payment — a lower monthly number with a longer term or higher rate can cost significantly more overall. It's also worth asking whether a phased approach makes sense for your home: some homeowners choose to reside the most exposed or damaged elevations first and complete the rest in a later phase, which can spread cost without leaving the most vulnerable walls unprotected.
What a Realistic Timeline Looks Like
Beyond dollars, timeline is part of the real cost of a project — delays cost you comfort and exposure time. A straightforward single-story home with sound sheathing underneath can often be resided in a matter of days once work begins. Homes with extensive substrate repair, more complex rooflines, or larger square footage take longer. Weather is a real factor in Whatcom County scheduling — a crew doing tear-off needs a reasonable stretch of dry-enough days to keep your walls protected, which is part of why late spring through early fall is often the more predictable window for scheduling, though work can proceed in other seasons with the right planning.
Getting an Estimate That Actually Means Something
The most useful estimate isn't the lowest number — it's the one that's built on an actual look at your home's condition, a clear material and labor breakdown, and honest answers about what could change the price once tear-off starts. If you're weighing a siding replacement for your home in Custer or elsewhere in Whatcom County, we're glad to walk your exterior with you, point out what we see, and put together a straightforward, no-pressure estimate using the James Hardie products we stand behind. There's no obligation — just a clear picture of what your specific project actually involves.