Bellingham Exterior One Product, One Standard
We get asked fairly often why we don't offer a menu of siding brands. The honest answer: we used to look at all of them, and after years of installing and repairing siding in Whatcom County, we standardized on James Hardie fiber cement and stopped installing anything else. This page explains the reasoning, not the marketing pitch.
Bellingham's exterior conditions are not gentle. We get long stretches of driving rain off the Sound, salt-laden air in neighborhoods closer to the water, and a moss and mildew season that can run eight months out of the year on the north and west-facing walls of a house. Whatever goes on the outside of a home here needs to handle sustained moisture exposure, not just an occasional storm.
What Fiber Cement Actually Is
James Hardie siding is made from cement, sand, and cellulose fiber, cured into a rigid, dimensionally stable board. It doesn't expand and contract with humidity the way wood-based products do, and it's non-combustible — a real consideration given how many homes in this area sit close to trees and vegetation. It won't rot, and it doesn't feed insects or fungal growth the way wood substrates can.
The HZ5 Engineering
James Hardie engineers its products by climate zone, and the Pacific Northwest falls under their HZ5 category — built for regions with heavy moisture exposure. That's a meaningful distinction. A siding product engineered for a dry climate and installed here is starting at a disadvantage before a single nail goes in. HZ5 boards are formulated with moisture performance in mind, which matters when a wall assembly is going to see rain for half the year.
ColorPlus Factory Finish
Most of what we install uses Hardie's ColorPlus finish — color baked on in a factory-controlled process rather than field-applied paint. A few practical benefits:
- More consistent color and sheen across the whole job, since it isn't dependent on job-site weather or spray technique
- Better resistance to fading and chipping than a standard field-painted board
- A finish warranty backed by the manufacturer, separate from the product warranty
- Touch-up product available that's formulated to match, rather than guessing at a paint mix years later
Field-painted primed fiber cement is still a legitimate option in the Hardie lineup, and we'll use it when a homeowner wants a fully custom color. But for most projects, ColorPlus gets you a better long-term result for the labor involved.
The Product Lines We Work With
| Line | What It's For |
|---|---|
| HardiePlank | Lap siding, the most common choice — several exposure widths and textures (cedarmill or smooth) |
| HardiePanel | Vertical panel siding, often paired with board-and-batten detailing |
| HardieShingle | Staggered or straight-edge shingle profile, for homes wanting a shingle-style look without cedar's maintenance |
| HardieTrim | Fascia, corner boards, and trim components matched to the siding system |
Why We Don't Install Alternatives
We're straightforward with clients about this: LP SmartSide, vinyl, Cemplank, Allura, primed spruce, and cedar all have legitimate uses and plenty of homes wearing them well elsewhere. Our decision to standardize isn't a claim that those products are bad — it's that we didn't want to run two installation standards, two warranty conversations, and two sets of long-term maintenance expectations with our clients. We have a full library of pages that walk through the specific trade-offs of each of those alternatives if you want the detail.
What it comes down to for us is accountability. When we install one product system, to one manufacturer's spec, we know exactly how it should perform in this climate, we know the warranty terms cold, and we can stand behind the installation without hedging.
The Warranty, Plainly Stated
James Hardie backs its siding products with a non-prorated limited warranty that's transferable to a subsequent homeowner, which matters for resale in a market like Bellingham's. ColorPlus finishes carry their own separate finish warranty. Warranty terms are set by the manufacturer and vary by product line, so we go over the specific documentation with every client rather than quoting numbers from memory — ask us and we'll show you the actual warranty paperwork for your project.
Installation Is Where It's Won or Lost
Fiber cement is only as good as the installation behind it. Correct fastening, proper clearance from grade and roof lines, correct flashing and house-wrap integration, and following Hardie's published installation instructions are what make the difference between a wall system that lasts decades in Whatcom County weather and one that causes problems in five years. This is a big part of why we don't spread ourselves across multiple product lines — we'd rather be genuinely expert installers of one system than average installers of several.
If you're weighing siding options for a home in Bellingham or anywhere else in Whatcom County, we're happy to walk your property, look at your exposure to weather and salt air, and talk through which Hardie line and finish makes sense. Reach out for a free, no-pressure estimate — there's a form below.